dri-devel October 2019

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Xorg indefinitely hangs in kernelspace
by Jaak Ristioja 03 Oct '19

03 Oct '19

Hello! I'm writing to report a crash in the QXL / DRM code in the Linux kernel. I originally filed the issue on LaunchPad and more details can be found there, although I doubt whether these details are useful. https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1813620 I first experienced these issues with: * Ubuntu 18.04 (probably kernel 4.15.something) * Ubuntu 18.10 (kernel 4.18.0-13) * Ubuntu 19.04 (kernel 5.0.0-13-generic) * Ubuntu 19.04 (mainline kernel 5.1-rc7) * Ubuntu 19.04 (mainline kernel 5.2.0-050200rc1-generic) Here is the crash output from dmesg: [354073.713350] INFO: task Xorg:920 blocked for more than 120 seconds. [354073.717755] Not tainted 5.2.0-050200rc1-generic #201905191930 [354073.722277] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [354073.738332] Xorg D 0 920 854 0x00404004 [354073.738334] Call Trace: [354073.738340] __schedule+0x2ba/0x650 [354073.738342] schedule+0x2d/0x90 [354073.738343] schedule_preempt_disabled+0xe/0x10 [354073.738345] __ww_mutex_lock.isra.11+0x3e0/0x750 [354073.738346] __ww_mutex_lock_slowpath+0x16/0x20 [354073.738347] ww_mutex_lock+0x34/0x50 [354073.738352] ttm_eu_reserve_buffers+0x1f9/0x2e0 [ttm] [354073.738356] qxl_release_reserve_list+0x67/0x150 [qxl] [354073.738358] ? qxl_bo_pin+0xaa/0x190 [qxl] [354073.738359] qxl_cursor_atomic_update+0x1b0/0x2e0 [qxl] [354073.738367] drm_atomic_helper_commit_planes+0xb9/0x220 [drm_kms_helper] [354073.738371] drm_atomic_helper_commit_tail+0x2b/0x70 [drm_kms_helper] [354073.738374] commit_tail+0x67/0x70 [drm_kms_helper] [354073.738378] drm_atomic_helper_commit+0x113/0x120 [drm_kms_helper] [354073.738390] drm_atomic_commit+0x4a/0x50 [drm] [354073.738394] drm_atomic_helper_update_plane+0xe9/0x100 [drm_kms_helper] [354073.738402] __setplane_atomic+0xd3/0x120 [drm] [354073.738410] drm_mode_cursor_universal+0x142/0x270 [drm] [354073.738418] drm_mode_cursor_common+0xcb/0x220 [drm] [354073.738425] ? drm_mode_cursor_ioctl+0x60/0x60 [drm] [354073.738432] drm_mode_cursor2_ioctl+0xe/0x10 [drm] [354073.738438] drm_ioctl_kernel+0xb0/0x100 [drm] [354073.738440] ? ___sys_recvmsg+0x16c/0x200 [354073.738445] drm_ioctl+0x233/0x410 [drm] [354073.738452] ? drm_mode_cursor_ioctl+0x60/0x60 [drm] [354073.738454] ? timerqueue_add+0x57/0x90 [354073.738456] ? enqueue_hrtimer+0x3c/0x90 [354073.738458] do_vfs_ioctl+0xa9/0x640 [354073.738459] ? fput+0x13/0x20 [354073.738461] ? __sys_recvmsg+0x88/0xa0 [354073.738462] ksys_ioctl+0x67/0x90 [354073.738463] __x64_sys_ioctl+0x1a/0x20 [354073.738465] do_syscall_64+0x5a/0x140 [354073.738467] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [354073.738468] RIP: 0033:0x7ffad14d3417 [354073.738472] Code: Bad RIP value. [354073.738472] RSP: 002b:00007ffdd5679978 EFLAGS: 00003246 ORIG_RAX: 0000000000000010 [354073.738473] RAX: ffffffffffffffda RBX: 000056428a474610 RCX: 00007ffad14d3417 [354073.738474] RDX: 00007ffdd56799b0 RSI: 00000000c02464bb RDI: 000000000000000e [354073.738474] RBP: 00007ffdd56799b0 R08: 0000000000000040 R09: 0000000000000010 [354073.738475] R10: 000000000000003f R11: 0000000000003246 R12: 00000000c02464bb [354073.738475] R13: 000000000000000e R14: 0000000000000000 R15: 000056428a4721d0 [354073.738511] INFO: task kworker/1:0:27625 blocked for more than 120 seconds. [354073.745154] Not tainted 5.2.0-050200rc1-generic #201905191930 [354073.751900] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [354073.762197] kworker/1:0 D 0 27625 2 0x80004000 [354073.762205] Workqueue: events qxl_client_monitors_config_work_func [qxl] [354073.762206] Call Trace: [354073.762211] __schedule+0x2ba/0x650 [354073.762214] schedule+0x2d/0x90 [354073.762215] schedule_preempt_disabled+0xe/0x10 [354073.762216] __ww_mutex_lock.isra.11+0x3e0/0x750 [354073.762217] ? __switch_to_asm+0x34/0x70 [354073.762218] ? __switch_to_asm+0x40/0x70 [354073.762219] ? __switch_to_asm+0x40/0x70 [354073.762220] __ww_mutex_lock_slowpath+0x16/0x20 [354073.762221] ww_mutex_lock+0x34/0x50 [354073.762235] drm_modeset_lock+0x35/0xb0 [drm] [354073.762243] drm_modeset_lock_all_ctx+0x5d/0xe0 [drm] [354073.762251] drm_modeset_lock_all+0x5e/0xb0 [drm] [354073.762252] qxl_display_read_client_monitors_config+0x1e1/0x370 [qxl] [354073.762254] qxl_client_monitors_config_work_func+0x15/0x20 [qxl] [354073.762256] process_one_work+0x20f/0x410 [354073.762257] worker_thread+0x34/0x400 [354073.762259] kthread+0x120/0x140 [354073.762260] ? process_one_work+0x410/0x410 [354073.762261] ? __kthread_parkme+0x70/0x70 [354073.762262] ret_from_fork+0x35/0x40 [354194.557095] INFO: task Xorg:920 blocked for more than 241 seconds. [354194.558311] Not tainted 5.2.0-050200rc1-generic #201905191930 [354194.559484] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [354194.560936] Xorg D 0 920 854 0x00404004 [354194.560938] Call Trace: [354194.560944] __schedule+0x2ba/0x650 [354194.560946] schedule+0x2d/0x90 [354194.560947] schedule_preempt_disabled+0xe/0x10 [354194.560948] __ww_mutex_lock.isra.11+0x3e0/0x750 [354194.560950] __ww_mutex_lock_slowpath+0x16/0x20 [354194.560950] ww_mutex_lock+0x34/0x50 [354194.560956] ttm_eu_reserve_buffers+0x1f9/0x2e0 [ttm] [354194.560959] qxl_release_reserve_list+0x67/0x150 [qxl] [354194.560961] ? qxl_bo_pin+0xaa/0x190 [qxl] [354194.560963] qxl_cursor_atomic_update+0x1b0/0x2e0 [qxl] [354194.560971] drm_atomic_helper_commit_planes+0xb9/0x220 [drm_kms_helper] [354194.560975] drm_atomic_helper_commit_tail+0x2b/0x70 [drm_kms_helper] [354194.560979] commit_tail+0x67/0x70 [drm_kms_helper] [354194.560982] drm_atomic_helper_commit+0x113/0x120 [drm_kms_helper] [354194.560993] drm_atomic_commit+0x4a/0x50 [drm] [354194.560997] drm_atomic_helper_update_plane+0xe9/0x100 [drm_kms_helper] [354194.561011] __setplane_atomic+0xd3/0x120 [drm] [354194.561019] drm_mode_cursor_universal+0x142/0x270 [drm] [354194.561027] drm_mode_cursor_common+0xcb/0x220 [drm] [354194.561034] ? drm_mode_cursor_ioctl+0x60/0x60 [drm] [354194.561041] drm_mode_cursor2_ioctl+0xe/0x10 [drm] [354194.561047] drm_ioctl_kernel+0xb0/0x100 [drm] [354194.561049] ? ___sys_recvmsg+0x16c/0x200 [354194.561057] drm_ioctl+0x233/0x410 [drm] [354194.561080] ? drm_mode_cursor_ioctl+0x60/0x60 [drm] [354194.561082] ? timerqueue_add+0x57/0x90 [354194.561084] ? enqueue_hrtimer+0x3c/0x90 [354194.561086] do_vfs_ioctl+0xa9/0x640 [354194.561088] ? fput+0x13/0x20 [354194.561089] ? __sys_recvmsg+0x88/0xa0 [354194.561090] ksys_ioctl+0x67/0x90 [354194.561091] __x64_sys_ioctl+0x1a/0x20 [354194.561093] do_syscall_64+0x5a/0x140 [354194.561094] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [354194.561096] RIP: 0033:0x7ffad14d3417 [354194.561100] Code: Bad RIP value. [354194.561100] RSP: 002b:00007ffdd5679978 EFLAGS: 00003246 ORIG_RAX: 0000000000000010 [354194.561101] RAX: ffffffffffffffda RBX: 000056428a474610 RCX: 00007ffad14d3417 [354194.561102] RDX: 00007ffdd56799b0 RSI: 00000000c02464bb RDI: 000000000000000e [354194.561102] RBP: 00007ffdd56799b0 R08: 0000000000000040 R09: 0000000000000010 [354194.561103] R10: 000000000000003f R11: 0000000000003246 R12: 00000000c02464bb [354194.561103] R13: 000000000000000e R14: 0000000000000000 R15: 000056428a4721d0 [354194.561163] INFO: task kworker/1:0:27625 blocked for more than 241 seconds. [354194.562474] Not tainted 5.2.0-050200rc1-generic #201905191930 [354194.563994] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [354194.565474] kworker/1:0 D 0 27625 2 0x80004000 [354194.565479] Workqueue: events qxl_client_monitors_config_work_func [qxl] [354194.565480] Call Trace: [354194.565483] __schedule+0x2ba/0x650 [354194.565484] schedule+0x2d/0x90 [354194.565486] schedule_preempt_disabled+0xe/0x10 [354194.565486] __ww_mutex_lock.isra.11+0x3e0/0x750 [354194.565488] ? __switch_to_asm+0x34/0x70 [354194.565489] ? __switch_to_asm+0x40/0x70 [354194.565490] ? __switch_to_asm+0x40/0x70 [354194.565490] __ww_mutex_lock_slowpath+0x16/0x20 [354194.565491] ww_mutex_lock+0x34/0x50 [354194.565499] drm_modeset_lock+0x35/0xb0 [drm] [354194.565507] drm_modeset_lock_all_ctx+0x5d/0xe0 [drm] [354194.565514] drm_modeset_lock_all+0x5e/0xb0 [drm] [354194.565516] qxl_display_read_client_monitors_config+0x1e1/0x370 [qxl] [354194.565518] qxl_client_monitors_config_work_func+0x15/0x20 [qxl] [354194.565519] process_one_work+0x20f/0x410 [354194.565521] worker_thread+0x34/0x400 [354194.565522] kthread+0x120/0x140 [354194.565523] ? process_one_work+0x410/0x410 [354194.565524] ? __kthread_parkme+0x70/0x70 [354194.565525] ret_from_fork+0x35/0x40 [354315.400956] INFO: task Xorg:920 blocked for more than 362 seconds. [354315.411626] Not tainted 5.2.0-050200rc1-generic #201905191930 [354315.422647] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [354315.435897] Xorg D 0 920 854 0x00404004 [354315.435899] Call Trace: [354315.435923] __schedule+0x2ba/0x650 [354315.435925] schedule+0x2d/0x90 [354315.435927] schedule_preempt_disabled+0xe/0x10 [354315.435928] __ww_mutex_lock.isra.11+0x3e0/0x750 [354315.435929] __ww_mutex_lock_slowpath+0x16/0x20 [354315.435930] ww_mutex_lock+0x34/0x50 [354315.435935] ttm_eu_reserve_buffers+0x1f9/0x2e0 [ttm] [354315.435939] qxl_release_reserve_list+0x67/0x150 [qxl] [354315.435941] ? qxl_bo_pin+0xaa/0x190 [qxl] [354315.435943] qxl_cursor_atomic_update+0x1b0/0x2e0 [qxl] [354315.435951] drm_atomic_helper_commit_planes+0xb9/0x220 [drm_kms_helper] [354315.435955] drm_atomic_helper_commit_tail+0x2b/0x70 [drm_kms_helper] [354315.435958] commit_tail+0x67/0x70 [drm_kms_helper] [354315.435962] drm_atomic_helper_commit+0x113/0x120 [drm_kms_helper] [354315.435974] drm_atomic_commit+0x4a/0x50 [drm] [354315.435977] drm_atomic_helper_update_plane+0xe9/0x100 [drm_kms_helper] [354315.435985] __setplane_atomic+0xd3/0x120 [drm] [354315.435993] drm_mode_cursor_universal+0x142/0x270 [drm] [354315.436001] drm_mode_cursor_common+0xcb/0x220 [drm] [354315.436009] ? drm_mode_cursor_ioctl+0x60/0x60 [drm] [354315.436016] drm_mode_cursor2_ioctl+0xe/0x10 [drm] [354315.436021] drm_ioctl_kernel+0xb0/0x100 [drm] [354315.436023] ? ___sys_recvmsg+0x16c/0x200 [354315.436029] drm_ioctl+0x233/0x410 [drm] [354315.436036] ? drm_mode_cursor_ioctl+0x60/0x60 [drm] [354315.436038] ? timerqueue_add+0x57/0x90 [354315.436040] ? enqueue_hrtimer+0x3c/0x90 [354315.436042] do_vfs_ioctl+0xa9/0x640 [354315.436043] ? fput+0x13/0x20 [354315.436045] ? __sys_recvmsg+0x88/0xa0 [354315.436046] ksys_ioctl+0x67/0x90 [354315.436047] __x64_sys_ioctl+0x1a/0x20 [354315.436049] do_syscall_64+0x5a/0x140 [354315.436050] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [354315.436051] RIP: 0033:0x7ffad14d3417 [354315.436069] Code: Bad RIP value. [354315.436070] RSP: 002b:00007ffdd5679978 EFLAGS: 00003246 ORIG_RAX: 0000000000000010 [354315.436071] RAX: ffffffffffffffda RBX: 000056428a474610 RCX: 00007ffad14d3417 [354315.436071] RDX: 00007ffdd56799b0 RSI: 00000000c02464bb RDI: 000000000000000e [354315.436072] RBP: 00007ffdd56799b0 R08: 0000000000000040 R09: 0000000000000010 [354315.436072] R10: 000000000000003f R11: 0000000000003246 R12: 00000000c02464bb [354315.436073] R13: 000000000000000e R14: 0000000000000000 R15: 000056428a4721d0 [354315.436103] INFO: task kworker/1:0:27625 blocked for more than 362 seconds. [354315.451103] Not tainted 5.2.0-050200rc1-generic #201905191930 [354315.461927] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [354315.477908] kworker/1:0 D 0 27625 2 0x80004000 [354315.477916] Workqueue: events qxl_client_monitors_config_work_func [qxl] [354315.477918] Call Trace: [354315.477924] __schedule+0x2ba/0x650 [354315.477925] schedule+0x2d/0x90 [354315.477927] schedule_preempt_disabled+0xe/0x10 [354315.477928] __ww_mutex_lock.isra.11+0x3e0/0x750 [354315.477930] ? __switch_to_asm+0x34/0x70 [354315.477931] ? __switch_to_asm+0x40/0x70 [354315.477932] ? __switch_to_asm+0x40/0x70 [354315.477933] __ww_mutex_lock_slowpath+0x16/0x20 [354315.477933] ww_mutex_lock+0x34/0x50 [354315.477947] drm_modeset_lock+0x35/0xb0 [drm] [354315.477955] drm_modeset_lock_all_ctx+0x5d/0xe0 [drm] [354315.477963] drm_modeset_lock_all+0x5e/0xb0 [drm] [354315.477965] qxl_display_read_client_monitors_config+0x1e1/0x370 [qxl] [354315.477967] qxl_client_monitors_config_work_func+0x15/0x20 [qxl] [354315.477969] process_one_work+0x20f/0x410 [354315.477970] worker_thread+0x34/0x400 [354315.477972] kthread+0x120/0x140 [354315.477973] ? process_one_work+0x410/0x410 [354315.477973] ? __kthread_parkme+0x70/0x70 [354315.477975] ret_from_fork+0x35/0x40 [354436.251965] INFO: task Xorg:920 blocked for more than 483 seconds. [354436.253054] Not tainted 5.2.0-050200rc1-generic #201905191930 [354436.254109] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [354436.255421] Xorg D 0 920 854 0x00404004 [354436.255423] Call Trace: [354436.255429] __schedule+0x2ba/0x650 [354436.255431] schedule+0x2d/0x90 [354436.255433] schedule_preempt_disabled+0xe/0x10 [354436.255434] __ww_mutex_lock.isra.11+0x3e0/0x750 [354436.255435] __ww_mutex_lock_slowpath+0x16/0x20 [354436.255435] ww_mutex_lock+0x34/0x50 [354436.255441] ttm_eu_reserve_buffers+0x1f9/0x2e0 [ttm] [354436.255445] qxl_release_reserve_list+0x67/0x150 [qxl] [354436.255446] ? qxl_bo_pin+0xaa/0x190 [qxl] [354436.255448] qxl_cursor_atomic_update+0x1b0/0x2e0 [qxl] [354436.255456] drm_atomic_helper_commit_planes+0xb9/0x220 [drm_kms_helper] [354436.255459] drm_atomic_helper_commit_tail+0x2b/0x70 [drm_kms_helper] [354436.255463] commit_tail+0x67/0x70 [drm_kms_helper] [354436.255467] drm_atomic_helper_commit+0x113/0x120 [drm_kms_helper] [354436.255479] drm_atomic_commit+0x4a/0x50 [drm] [354436.255482] drm_atomic_helper_update_plane+0xe9/0x100 [drm_kms_helper] [354436.255490] __setplane_atomic+0xd3/0x120 [drm] [354436.255498] drm_mode_cursor_universal+0x142/0x270 [drm] [354436.255506] drm_mode_cursor_common+0xcb/0x220 [drm] [354436.255513] ? drm_mode_cursor_ioctl+0x60/0x60 [drm] [354436.255520] drm_mode_cursor2_ioctl+0xe/0x10 [drm] [354436.255526] drm_ioctl_kernel+0xb0/0x100 [drm] [354436.255527] ? ___sys_recvmsg+0x16c/0x200 [354436.255533] drm_ioctl+0x233/0x410 [drm] [354436.255540] ? drm_mode_cursor_ioctl+0x60/0x60 [drm] [354436.255542] ? timerqueue_add+0x57/0x90 [354436.255544] ? enqueue_hrtimer+0x3c/0x90 [354436.255546] do_vfs_ioctl+0xa9/0x640 [354436.255547] ? fput+0x13/0x20 [354436.255548] ? __sys_recvmsg+0x88/0xa0 [354436.255550] ksys_ioctl+0x67/0x90 [354436.255551] __x64_sys_ioctl+0x1a/0x20 [354436.255553] do_syscall_64+0x5a/0x140 [354436.255554] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [354436.255555] RIP: 0033:0x7ffad14d3417 [354436.255559] Code: Bad RIP value. [354436.255560] RSP: 002b:00007ffdd5679978 EFLAGS: 00003246 ORIG_RAX: 0000000000000010 [354436.255561] RAX: ffffffffffffffda RBX: 000056428a474610 RCX: 00007ffad14d3417 [354436.255561] RDX: 00007ffdd56799b0 RSI: 00000000c02464bb RDI: 000000000000000e [354436.255562] RBP: 00007ffdd56799b0 R08: 0000000000000040 R09: 0000000000000010 [354436.255562] R10: 000000000000003f R11: 0000000000003246 R12: 00000000c02464bb [354436.255563] R13: 000000000000000e R14: 0000000000000000 R15: 000056428a4721d0 [354436.255599] INFO: task kworker/1:0:27625 blocked for more than 483 seconds. [354436.256802] Not tainted 5.2.0-050200rc1-generic #201905191930 [354436.257874] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [354436.278727] kworker/1:0 D 0 27625 2 0x80004000 [354436.278735] Workqueue: events qxl_client_monitors_config_work_func [qxl] [354436.278736] Call Trace: [354436.278742] __schedule+0x2ba/0x650 [354436.278743] schedule+0x2d/0x90 [354436.278745] schedule_preempt_disabled+0xe/0x10 [354436.278746] __ww_mutex_lock.isra.11+0x3e0/0x750 [354436.278747] ? __switch_to_asm+0x34/0x70 [354436.278748] ? __switch_to_asm+0x40/0x70 [354436.278749] ? __switch_to_asm+0x40/0x70 [354436.278750] __ww_mutex_lock_slowpath+0x16/0x20 [354436.278751] ww_mutex_lock+0x34/0x50 [354436.278764] drm_modeset_lock+0x35/0xb0 [drm] [354436.278772] drm_modeset_lock_all_ctx+0x5d/0xe0 [drm] [354436.278779] drm_modeset_lock_all+0x5e/0xb0 [drm] [354436.278781] qxl_display_read_client_monitors_config+0x1e1/0x370 [qxl] [354436.278783] qxl_client_monitors_config_work_func+0x15/0x20 [qxl] [354436.278785] process_one_work+0x20f/0x410 [354436.278786] worker_thread+0x34/0x400 [354436.278787] kthread+0x120/0x140 [354436.278788] ? process_one_work+0x410/0x410 [354436.278789] ? __kthread_parkme+0x70/0x70 [354436.278790] ret_from_fork+0x35/0x40 [354557.088600] INFO: task Xorg:920 blocked for more than 604 seconds. [354557.089689] Not tainted 5.2.0-050200rc1-generic #201905191930 [354557.090759] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [354557.092075] Xorg D 0 920 854 0x00404004 [354557.092077] Call Trace: [354557.092083] __schedule+0x2ba/0x650 [354557.092085] schedule+0x2d/0x90 [354557.092086] schedule_preempt_disabled+0xe/0x10 [354557.092087] __ww_mutex_lock.isra.11+0x3e0/0x750 [354557.092089] __ww_mutex_lock_slowpath+0x16/0x20 [354557.092089] ww_mutex_lock+0x34/0x50 [354557.092095] ttm_eu_reserve_buffers+0x1f9/0x2e0 [ttm] [354557.092098] qxl_release_reserve_list+0x67/0x150 [qxl] [354557.092100] ? qxl_bo_pin+0xaa/0x190 [qxl] [354557.092102] qxl_cursor_atomic_update+0x1b0/0x2e0 [qxl] [354557.092110] drm_atomic_helper_commit_planes+0xb9/0x220 [drm_kms_helper] [354557.092114] drm_atomic_helper_commit_tail+0x2b/0x70 [drm_kms_helper] [354557.092117] commit_tail+0x67/0x70 [drm_kms_helper] [354557.092121] drm_atomic_helper_commit+0x113/0x120 [drm_kms_helper] [354557.092133] drm_atomic_commit+0x4a/0x50 [drm] [354557.092137] drm_atomic_helper_update_plane+0xe9/0x100 [drm_kms_helper] [354557.092145] __setplane_atomic+0xd3/0x120 [drm] [354557.092154] drm_mode_cursor_universal+0x142/0x270 [drm] [354557.092162] drm_mode_cursor_common+0xcb/0x220 [drm] [354557.092170] ? drm_mode_cursor_ioctl+0x60/0x60 [drm] [354557.092179] drm_mode_cursor2_ioctl+0xe/0x10 [drm] [354557.092185] drm_ioctl_kernel+0xb0/0x100 [drm] [354557.092187] ? ___sys_recvmsg+0x16c/0x200 [354557.092193] drm_ioctl+0x233/0x410 [drm] [354557.092201] ? drm_mode_cursor_ioctl+0x60/0x60 [drm] [354557.092203] ? timerqueue_add+0x57/0x90 [354557.092205] ? enqueue_hrtimer+0x3c/0x90 [354557.092207] do_vfs_ioctl+0xa9/0x640 [354557.092208] ? fput+0x13/0x20 [354557.092209] ? __sys_recvmsg+0x88/0xa0 [354557.092210] ksys_ioctl+0x67/0x90 [354557.092212] __x64_sys_ioctl+0x1a/0x20 [354557.092213] do_syscall_64+0x5a/0x140 [354557.092215] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [354557.092216] RIP: 0033:0x7ffad14d3417 [354557.092220] Code: Bad RIP value. [354557.092221] RSP: 002b:00007ffdd5679978 EFLAGS: 00003246 ORIG_RAX: 0000000000000010 [354557.092222] RAX: ffffffffffffffda RBX: 000056428a474610 RCX: 00007ffad14d3417 [354557.092223] RDX: 00007ffdd56799b0 RSI: 00000000c02464bb RDI: 000000000000000e [354557.092223] RBP: 00007ffdd56799b0 R08: 0000000000000040 R09: 0000000000000010 [354557.092223] R10: 000000000000003f R11: 0000000000003246 R12: 00000000c02464bb [354557.092224] R13: 000000000000000e R14: 0000000000000000 R15: 000056428a4721d0 [354557.092259] INFO: task kworker/1:0:27625 blocked for more than 604 seconds. [354557.093464] Not tainted 5.2.0-050200rc1-generic #201905191930 [354557.094520] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [354557.095834] kworker/1:0 D 0 27625 2 0x80004000 [354557.095838] Workqueue: events qxl_client_monitors_config_work_func [qxl] [354557.095839] Call Trace: [354557.095841] __schedule+0x2ba/0x650 [354557.095843] schedule+0x2d/0x90 [354557.095844] schedule_preempt_disabled+0xe/0x10 [354557.095845] __ww_mutex_lock.isra.11+0x3e0/0x750 [354557.095846] ? __switch_to_asm+0x34/0x70 [354557.095847] ? __switch_to_asm+0x40/0x70 [354557.095848] ? __switch_to_asm+0x40/0x70 [354557.095849] __ww_mutex_lock_slowpath+0x16/0x20 [354557.095850] ww_mutex_lock+0x34/0x50 [354557.095858] drm_modeset_lock+0x35/0xb0 [drm] [354557.095866] drm_modeset_lock_all_ctx+0x5d/0xe0 [drm] [354557.095874] drm_modeset_lock_all+0x5e/0xb0 [drm] [354557.095876] qxl_display_read_client_monitors_config+0x1e1/0x370 [qxl] [354557.095878] qxl_client_monitors_config_work_func+0x15/0x20 [qxl] [354557.095880] process_one_work+0x20f/0x410 [354557.095881] worker_thread+0x34/0x400 [354557.095882] kthread+0x120/0x140 [354557.095883] ? process_one_work+0x410/0x410 [354557.095884] ? __kthread_parkme+0x70/0x70 [354557.095885] ret_from_fork+0x35/0x40 Please contact me if more information is needed. Best regards, Jaak Ristioja

4 6

[PULL] drm-misc-fixes
by Maxime Ripard 03 Oct '19

03 Oct '19

Hi, Here is another attempt at a PR for drm-misc-fixes, after the attempt I did yesterday. Maxime drm-misc-fixes-2019-10-03: - One include fix for tilcdc - A clock fix for OMAP - A memory leak fix for Komeda - Some fixes for resources cleanups with writeback The following changes since commit 54ecb8f7028c5eb3d740bb82b0f1d90f2df63c5c: Linux 5.4-rc1 (2019-09-30 10:35:40 -0700) are available in the Git repository at: git://anongit.freedesktop.org/drm/drm-misc tags/drm-misc-fixes-2019-10-03 for you to fetch changes up to b6559bf3ac32acfe34e17c73d68581e7f7415785: Merge drm-misc-next-fixes-2019-10-02 into drm-misc-fixes (2019-10-03 10:00:13 +0200) ---------------------------------------------------------------- - One include fix for tilcdc - A clock fix for OMAP - A memory leak fix for Komeda - Some fixes for resources cleanups with writeback ---------------------------------------------------------------- Arnd Bergmann (1): drm/tilcdc: include linux/pinctrl/consumer.h again Lowry Li (Arm Technology China) (2): drm: Free the writeback_job when it with an empty fb drm: Clear the fence pointer when writeback job signaled Maxime Ripard (2): Merge drm/drm-fixes into drm-misc-fixes Merge drm-misc-next-fixes-2019-10-02 into drm-misc-fixes Navid Emamdoost (1): drm/komeda: prevent memory leak in komeda_wb_connector_add Tomi Valkeinen (1): drm/omap: fix max fclk divider for omap36xx .../drm/arm/display/komeda/komeda_wb_connector.c | 7 ++++--- drivers/gpu/drm/arm/malidp_mw.c | 4 ++-- drivers/gpu/drm/drm_atomic.c | 13 ++++++++---- drivers/gpu/drm/drm_writeback.c | 23 ++++++++++++++-------- drivers/gpu/drm/omapdrm/dss/dss.c | 2 +- drivers/gpu/drm/rcar-du/rcar_du_writeback.c | 4 ++-- drivers/gpu/drm/tilcdc/tilcdc_tfp410.c | 1 + drivers/gpu/drm/vc4/vc4_txp.c | 5 ++--- 8 files changed, 36 insertions(+), 23 deletions(-)

1 0

[PATCH V6] drm/drm_vblank: Change EINVAL by the correct errno
by Rodrigo Siqueira 03 Oct '19

03 Oct '19

For historical reasons, the function drm_wait_vblank_ioctl always return -EINVAL if something gets wrong. This scenario limits the flexibility for the userspace to make detailed verification of any problem and take some action. In particular, the validation of “if (!dev->irq_enabled)” in the drm_wait_vblank_ioctl is responsible for checking if the driver support vblank or not. If the driver does not support VBlank, the function drm_wait_vblank_ioctl returns EINVAL, which does not represent the real issue; this patch changes this behavior by return EOPNOTSUPP. Additionally, drm_crtc_get_sequence_ioctl and drm_crtc_queue_sequence_ioctl, also returns EINVAL if vblank is not supported; this patch also changes the return value to EOPNOTSUPP in these functions. Lastly, these functions are invoked by libdrm, which is used by many compositors; because of this, it is important to check if this change breaks any compositor. In this sense, the following projects were examined: * Drm-hwcomposer * Kwin * Sway * Wlroots * Wayland * Weston * Mutter * Xorg (67 different drivers) For each repository the verification happened in three steps: * Update the main branch * Look for any occurrence of "drmCrtcQueueSequence", "drmCrtcGetSequence", and "drmWaitVBlank" with the command git grep -n "STRING". * Look in the git history of the project with the command git log -S<STRING> None of the above projects validate the use of EINVAL when using drmWaitVBlank(), which make safe, at least for these projects, to change the return values. On the other hand, mesa and xserver project uses drmCrtcQueueSequence() and drmCrtcGetSequence(); this change is harmless for both projects. Change since V5 (Pekka Paalanen): - Check if the change also affects Mutter Change since V4 (Daniel): - Also return EOPNOTSUPP in drm_crtc_[get|queue]_sequence_ioctl Change since V3: - Return EINVAL for _DRM_VBLANK_SIGNAL (Daniel) Change since V2: Daniel Vetter and Chris Wilson - Replace ENOTTY by EOPNOTSUPP - Return EINVAL if the parameters are wrong Cc: Keith Packard <keithp(a)keithp.com> Cc: Maarten Lankhorst <maarten.lankhorst(a)linux.intel.com> Cc: Ville Syrjälä <ville.syrjala(a)linux.intel.com> Cc: Chris Wilson <chris(a)chris-wilson.co.uk> Cc: Daniel Vetter <daniel(a)ffwll.ch> Cc: Pekka Paalanen <pekka.paalanen(a)collabora.com> Signed-off-by: Rodrigo Siqueira <rodrigosiqueiramelo(a)gmail.com> --- drivers/gpu/drm/drm_vblank.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/drm_vblank.c b/drivers/gpu/drm/drm_vblank.c index 9c6899758bc9..71cf2633ac58 100644 --- a/drivers/gpu/drm/drm_vblank.c +++ b/drivers/gpu/drm/drm_vblank.c @@ -1610,7 +1610,7 @@ int drm_wait_vblank_ioctl(struct drm_device *dev, void *data, unsigned int flags, pipe, high_pipe; if (!dev->irq_enabled) - return -EINVAL; + return -EOPNOTSUPP; if (vblwait->request.type & _DRM_VBLANK_SIGNAL) return -EINVAL; @@ -1876,7 +1876,7 @@ int drm_crtc_get_sequence_ioctl(struct drm_device *dev, void *data, return -EOPNOTSUPP; if (!dev->irq_enabled) - return -EINVAL; + return -EOPNOTSUPP; crtc = drm_crtc_find(dev, file_priv, get_seq->crtc_id); if (!crtc) @@ -1934,7 +1934,7 @@ int drm_crtc_queue_sequence_ioctl(struct drm_device *dev, void *data, return -EOPNOTSUPP; if (!dev->irq_enabled) - return -EINVAL; + return -EOPNOTSUPP; crtc = drm_crtc_find(dev, file_priv, queue_seq->crtc_id); if (!crtc) -- 2.23.0

2 1

[radeon-alex:amd-mainline-dkms-5.0 3808/3821] include/kcl/kcl_drm.h:635:20: error: static declaration of 'drm_mode_is_420_only' follows non-static declaration
by kbuild test robot 03 Oct '19

03 Oct '19

tree: git://people.freedesktop.org/~agd5f/linux.git amd-mainline-dkms-5.0 head: e971bfc1faa0fa4df97ecca7a867a194455f26fd commit: 13a2da823a67d53982d85b4d28a9a2532fede843 [3808/3821] drm/amd/autoconf: check drm_mode_is_420_xxx() is available config: i386-randconfig-b004-201939 (attached as .config) compiler: gcc-7 (Debian 7.4.0-13) 7.4.0 reproduce: git checkout 13a2da823a67d53982d85b4d28a9a2532fede843 # save the attached .config to linux build tree make ARCH=i386 If you fix the issue, kindly add following tag Reported-by: kbuild test robot <lkp(a)intel.com> All errors (new ones prefixed by >>): from <command-line>:0: include/kcl/kcl_drm.h: In function 'kcl_drm_universal_plane_init': include/kcl/kcl_drm.h:343:29: error: incompatible type for argument 7 of 'drm_universal_plane_init' formats, format_count, type); ^~~~ In file included from include/drm/drm_crtc.h:45:0, from include/drm/drmP.h:69, from include/kcl/kcl_drm.h:6, from drivers/gpu/drm/ttm/backport/backport.h:6, from <command-line>:0: include/drm/drm_plane.h:713:5: note: expected 'const uint64_t * {aka const long long unsigned int *}' but argument is of type 'enum drm_plane_type' int drm_universal_plane_init(struct drm_device *dev, ^~~~~~~~~~~~~~~~~~~~~~~~ In file included from drivers/gpu/drm/ttm/backport/backport.h:6:0, from <command-line>:0: include/kcl/kcl_drm.h:342:10: error: too few arguments to function 'drm_universal_plane_init' return drm_universal_plane_init(dev, plane, possible_crtcs, funcs, ^~~~~~~~~~~~~~~~~~~~~~~~ In file included from include/drm/drm_crtc.h:45:0, from include/drm/drmP.h:69, from include/kcl/kcl_drm.h:6, from drivers/gpu/drm/ttm/backport/backport.h:6, from <command-line>:0: include/drm/drm_plane.h:713:5: note: declared here int drm_universal_plane_init(struct drm_device *dev, ^~~~~~~~~~~~~~~~~~~~~~~~ In file included from drivers/gpu/drm/ttm/backport/backport.h:6:0, from <command-line>:0: include/kcl/kcl_drm.h: In function 'kcl_drm_gem_object_lookup': include/kcl/kcl_drm.h:354:32: error: passing argument 1 of 'drm_gem_object_lookup' from incompatible pointer type [-Werror=incompatible-pointer-types] return drm_gem_object_lookup(dev, filp, handle); ^~~ In file included from include/kcl/kcl_drm.h:10:0, from drivers/gpu/drm/ttm/backport/backport.h:6, from <command-line>:0: include/drm/drm_gem.h:365:24: note: expected 'struct drm_file *' but argument is of type 'struct drm_device *' struct drm_gem_object *drm_gem_object_lookup(struct drm_file *filp, u32 handle); ^~~~~~~~~~~~~~~~~~~~~ In file included from drivers/gpu/drm/ttm/backport/backport.h:6:0, from <command-line>:0: include/kcl/kcl_drm.h:354:37: warning: passing argument 2 of 'drm_gem_object_lookup' makes integer from pointer without a cast [-Wint-conversion] return drm_gem_object_lookup(dev, filp, handle); ^~~~ In file included from include/kcl/kcl_drm.h:10:0, from drivers/gpu/drm/ttm/backport/backport.h:6, from <command-line>:0: include/drm/drm_gem.h:365:24: note: expected 'u32 {aka unsigned int}' but argument is of type 'struct drm_file *' struct drm_gem_object *drm_gem_object_lookup(struct drm_file *filp, u32 handle); ^~~~~~~~~~~~~~~~~~~~~ In file included from drivers/gpu/drm/ttm/backport/backport.h:6:0, from <command-line>:0: include/kcl/kcl_drm.h:354:10: error: too many arguments to function 'drm_gem_object_lookup' return drm_gem_object_lookup(dev, filp, handle); ^~~~~~~~~~~~~~~~~~~~~ In file included from include/kcl/kcl_drm.h:10:0, from drivers/gpu/drm/ttm/backport/backport.h:6, from <command-line>:0: include/drm/drm_gem.h:365:24: note: declared here struct drm_gem_object *drm_gem_object_lookup(struct drm_file *filp, u32 handle); ^~~~~~~~~~~~~~~~~~~~~ In file included from drivers/gpu/drm/ttm/backport/backport.h:6:0, from <command-line>:0: include/kcl/kcl_drm.h: At top level: include/kcl/kcl_drm.h:390:8: error: redefinition of 'struct drm_format_name_buf' struct drm_format_name_buf { ^~~~~~~~~~~~~~~~~~~ In file included from include/drm/drmP.h:70:0, from include/kcl/kcl_drm.h:6, from drivers/gpu/drm/ttm/backport/backport.h:6, from <command-line>:0: include/drm/drm_fourcc.h:142:8: note: originally defined here struct drm_format_name_buf { ^~~~~~~~~~~~~~~~~~~ In file included from drivers/gpu/drm/ttm/backport/backport.h:6:0, from <command-line>:0: include/kcl/kcl_drm.h: In function 'kcl_drm_gem_object_put_unlocked': include/kcl/kcl_drm.h:422:9: error: implicit declaration of function 'drm_gem_object_unreference_unlocked'; did you mean 'drm_gem_object_put_unlocked'? [-Werror=implicit-function-declaration] return drm_gem_object_unreference_unlocked(obj); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drm_gem_object_put_unlocked include/kcl/kcl_drm.h:422:9: warning: 'return' with a value, in function returning void return drm_gem_object_unreference_unlocked(obj); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/kcl/kcl_drm.h:419:20: note: declared here static inline void kcl_drm_gem_object_put_unlocked(struct drm_gem_object *obj) ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/kcl/kcl_drm.h: At top level: include/kcl/kcl_drm.h:536:34: error: redefinition of 'drm_debug_printer' static inline struct drm_printer drm_debug_printer(const char *prefix) ^~~~~~~~~~~~~~~~~ In file included from include/drm/drm_mm.h:49:0, from include/drm/drmP.h:72, from include/kcl/kcl_drm.h:6, from drivers/gpu/drm/ttm/backport/backport.h:6, from <command-line>:0: include/drm/drm_print.h:217:34: note: previous definition of 'drm_debug_printer' was here static inline struct drm_printer drm_debug_printer(const char *prefix) ^~~~~~~~~~~~~~~~~ In file included from drivers/gpu/drm/ttm/backport/backport.h:6:0, from <command-line>:0: >> include/kcl/kcl_drm.h:635:20: error: static declaration of 'drm_mode_is_420_only' follows non-static declaration static inline bool drm_mode_is_420_only(const struct drm_display_info *display, ^~~~~~~~~~~~~~~~~~~~ In file included from include/drm/drm_crtc.h:40:0, from include/drm/drmP.h:69, from include/kcl/kcl_drm.h:6, from drivers/gpu/drm/ttm/backport/backport.h:6, from <command-line>:0: include/drm/drm_modes.h:471:6: note: previous declaration of 'drm_mode_is_420_only' was here bool drm_mode_is_420_only(const struct drm_display_info *display, ^~~~~~~~~~~~~~~~~~~~ In file included from drivers/gpu/drm/ttm/backport/backport.h:6:0, from <command-line>:0: >> include/kcl/kcl_drm.h:642:20: error: static declaration of 'drm_mode_is_420_also' follows non-static declaration static inline bool drm_mode_is_420_also(const struct drm_display_info *display, ^~~~~~~~~~~~~~~~~~~~ In file included from include/drm/drm_crtc.h:40:0, from include/drm/drmP.h:69, from include/kcl/kcl_drm.h:6, from drivers/gpu/drm/ttm/backport/backport.h:6, from <command-line>:0: include/drm/drm_modes.h:473:6: note: previous declaration of 'drm_mode_is_420_also' was here bool drm_mode_is_420_also(const struct drm_display_info *display, ^~~~~~~~~~~~~~~~~~~~ In file included from drivers/gpu/drm/ttm/backport/backport.h:9:0, from <command-line>:0: include/kcl/kcl_kref.h:7:28: error: redefinition of 'kref_read' static inline unsigned int kref_read(const struct kref *kref) ^~~~~~~~~ In file included from include/linux/dma-fence.h:28:0, from include/kcl/kcl_fence.h:10, from drivers/gpu/drm/ttm/backport/backport.h:5, from <command-line>:0: include/linux/kref.h:36:28: note: previous definition of 'kref_read' was here static inline unsigned int kref_read(const struct kref *kref) ^~~~~~~~~ In file included from drivers/gpu/drm/ttm/backport/backport.h:9:0, from <command-line>:0: include/kcl/kcl_kref.h: In function 'kref_read': include/kcl/kcl_kref.h:9:21: error: passing argument 1 of 'atomic_read' from incompatible pointer type [-Werror=incompatible-pointer-types] return atomic_read(&kref->refcount); ^ In file included from arch/x86/include/asm/atomic.h:265:0, from include/linux/atomic.h:7, from include/linux/rcupdate.h:38, from include/kcl/kcl_rcupdate.h:4, from include/kcl/kcl_fence.h:5, from drivers/gpu/drm/ttm/backport/backport.h:5, from <command-line>:0: include/asm-generic/atomic-instrumented.h:19:28: note: expected 'const atomic_t * {aka const struct <anonymous> *}' but argument is of type 'const refcount_t * {aka const struct refcount_struct *}' static __always_inline int atomic_read(const atomic_t *v) ^~~~~~~~~~~ In file included from drivers/gpu/drm/ttm/backport/backport.h:11:0, from <command-line>:0: include/kcl/kcl_mm_types.h: At top level: include/kcl/kcl_mm_types.h:10:3: error: conflicting types for 'pfn_t' } pfn_t; ^~~~~ In file included from include/asm-generic/memory_model.h:5:0, from arch/x86/include/asm/page.h:76, from arch/x86/include/asm/thread_info.h:12, from include/linux/thread_info.h:38, from arch/x86/include/asm/preempt.h:7, from include/linux/preempt.h:78, from include/linux/rcupdate.h:40, from include/kcl/kcl_rcupdate.h:4, from include/kcl/kcl_fence.h:5, from drivers/gpu/drm/ttm/backport/backport.h:5, from <command-line>:0: include/linux/pfn.h:15:3: note: previous declaration of 'pfn_t' was here } pfn_t; ^~~~~ In file included from drivers/gpu/drm/ttm/backport/backport.h:11:0, from <command-line>:0: include/kcl/kcl_mm_types.h:35:26: error: conflicting types for 'vmf_insert_mixed' static inline vm_fault_t vmf_insert_mixed(struct vm_area_struct *vma, ^~~~~~~~~~~~~~~~ In file included from include/linux/scatterlist.h:8:0, from include/linux/dma-mapping.h:11, from include/drm/drmP.h:37, from include/kcl/kcl_drm.h:6, from drivers/gpu/drm/ttm/backport/backport.h:6, from <command-line>:0: include/linux/mm.h:2572:12: note: previous declaration of 'vmf_insert_mixed' was here vm_fault_t vmf_insert_mixed(struct vm_area_struct *vma, unsigned long addr, ^~~~~~~~~~~~~~~~ In file included from drivers/gpu/drm/ttm/backport/backport.h:11:0, from <command-line>:0: include/kcl/kcl_mm_types.h: In function 'vmf_insert_mixed': include/kcl/kcl_mm_types.h:41:8: error: implicit declaration of function 'vm_insert_mixed'; did you mean 'vmf_insert_mixed'? [-Werror=implicit-function-declaration] err = vm_insert_mixed(vma, addr, pfn_t_to_pfn(pfn)); ^~~~~~~~~~~~~~~ vmf_insert_mixed include/kcl/kcl_mm_types.h: At top level: include/kcl/kcl_mm_types.h:53:26: error: static declaration of 'vmf_insert_pfn' follows non-static declaration static inline vm_fault_t vmf_insert_pfn(struct vm_area_struct *vma, ^~~~~~~~~~~~~~ In file included from include/linux/scatterlist.h:8:0, from include/linux/dma-mapping.h:11, from include/drm/drmP.h:37, from include/kcl/kcl_drm.h:6, from drivers/gpu/drm/ttm/backport/backport.h:6, from <command-line>:0: include/linux/mm.h:2568:12: note: previous declaration of 'vmf_insert_pfn' was here vm_fault_t vmf_insert_pfn(struct vm_area_struct *vma, unsigned long addr, ^~~~~~~~~~~~~~ In file included from drivers/gpu/drm/ttm/backport/backport.h:11:0, from <command-line>:0: include/kcl/kcl_mm_types.h: In function 'vmf_insert_pfn': include/kcl/kcl_mm_types.h:56:13: error: implicit declaration of function 'vm_insert_pfn'; did you mean 'vmf_insert_pfn'? [-Werror=implicit-function-declaration] int err = vm_insert_pfn(vma, addr, pfn); ^~~~~~~~~~~~~ vmf_insert_pfn In file included from drivers/gpu/drm/ttm/backport/backport.h:12:0, -- from <command-line>:0: include/kcl/kcl_drm.h: In function 'kcl_drm_universal_plane_init': include/kcl/kcl_drm.h:343:29: error: incompatible type for argument 7 of 'drm_universal_plane_init' formats, format_count, type); ^~~~ In file included from include/drm/drm_crtc.h:45:0, from include/drm/drmP.h:69, from include/kcl/kcl_drm.h:6, from drivers/gpu/drm/ttm/backport/backport.h:6, from <command-line>:0: include/drm/drm_plane.h:713:5: note: expected 'const uint64_t * {aka const long long unsigned int *}' but argument is of type 'enum drm_plane_type' int drm_universal_plane_init(struct drm_device *dev, ^~~~~~~~~~~~~~~~~~~~~~~~ In file included from drivers/gpu/drm/ttm/backport/backport.h:6:0, from <command-line>:0: include/kcl/kcl_drm.h:342:10: error: too few arguments to function 'drm_universal_plane_init' return drm_universal_plane_init(dev, plane, possible_crtcs, funcs, ^~~~~~~~~~~~~~~~~~~~~~~~ In file included from include/drm/drm_crtc.h:45:0, from include/drm/drmP.h:69, from include/kcl/kcl_drm.h:6, from drivers/gpu/drm/ttm/backport/backport.h:6, from <command-line>:0: include/drm/drm_plane.h:713:5: note: declared here int drm_universal_plane_init(struct drm_device *dev, ^~~~~~~~~~~~~~~~~~~~~~~~ In file included from drivers/gpu/drm/ttm/backport/backport.h:6:0, from <command-line>:0: include/kcl/kcl_drm.h: In function 'kcl_drm_gem_object_lookup': include/kcl/kcl_drm.h:354:32: error: passing argument 1 of 'drm_gem_object_lookup' from incompatible pointer type [-Werror=incompatible-pointer-types] return drm_gem_object_lookup(dev, filp, handle); ^~~ In file included from include/kcl/kcl_drm.h:10:0, from drivers/gpu/drm/ttm/backport/backport.h:6, from <command-line>:0: include/drm/drm_gem.h:365:24: note: expected 'struct drm_file *' but argument is of type 'struct drm_device *' struct drm_gem_object *drm_gem_object_lookup(struct drm_file *filp, u32 handle); ^~~~~~~~~~~~~~~~~~~~~ In file included from drivers/gpu/drm/ttm/backport/backport.h:6:0, from <command-line>:0: include/kcl/kcl_drm.h:354:37: warning: passing argument 2 of 'drm_gem_object_lookup' makes integer from pointer without a cast [-Wint-conversion] return drm_gem_object_lookup(dev, filp, handle); ^~~~ In file included from include/kcl/kcl_drm.h:10:0, from drivers/gpu/drm/ttm/backport/backport.h:6, from <command-line>:0: include/drm/drm_gem.h:365:24: note: expected 'u32 {aka unsigned int}' but argument is of type 'struct drm_file *' struct drm_gem_object *drm_gem_object_lookup(struct drm_file *filp, u32 handle); ^~~~~~~~~~~~~~~~~~~~~ In file included from drivers/gpu/drm/ttm/backport/backport.h:6:0, from <command-line>:0: include/kcl/kcl_drm.h:354:10: error: too many arguments to function 'drm_gem_object_lookup' return drm_gem_object_lookup(dev, filp, handle); ^~~~~~~~~~~~~~~~~~~~~ In file included from include/kcl/kcl_drm.h:10:0, from drivers/gpu/drm/ttm/backport/backport.h:6, from <command-line>:0: include/drm/drm_gem.h:365:24: note: declared here struct drm_gem_object *drm_gem_object_lookup(struct drm_file *filp, u32 handle); ^~~~~~~~~~~~~~~~~~~~~ In file included from drivers/gpu/drm/ttm/backport/backport.h:6:0, from <command-line>:0: include/kcl/kcl_drm.h: At top level: include/kcl/kcl_drm.h:390:8: error: redefinition of 'struct drm_format_name_buf' struct drm_format_name_buf { ^~~~~~~~~~~~~~~~~~~ In file included from include/drm/drmP.h:70:0, from include/kcl/kcl_drm.h:6, from drivers/gpu/drm/ttm/backport/backport.h:6, from <command-line>:0: include/drm/drm_fourcc.h:142:8: note: originally defined here struct drm_format_name_buf { ^~~~~~~~~~~~~~~~~~~ In file included from drivers/gpu/drm/ttm/backport/backport.h:6:0, from <command-line>:0: include/kcl/kcl_drm.h: In function 'kcl_drm_gem_object_put_unlocked': include/kcl/kcl_drm.h:422:9: error: implicit declaration of function 'drm_gem_object_unreference_unlocked'; did you mean 'drm_gem_object_put_unlocked'? [-Werror=implicit-function-declaration] return drm_gem_object_unreference_unlocked(obj); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drm_gem_object_put_unlocked include/kcl/kcl_drm.h:422:9: warning: 'return' with a value, in function returning void return drm_gem_object_unreference_unlocked(obj); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/kcl/kcl_drm.h:419:20: note: declared here static inline void kcl_drm_gem_object_put_unlocked(struct drm_gem_object *obj) ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/kcl/kcl_drm.h: At top level: include/kcl/kcl_drm.h:536:34: error: redefinition of 'drm_debug_printer' static inline struct drm_printer drm_debug_printer(const char *prefix) ^~~~~~~~~~~~~~~~~ In file included from include/drm/drm_mm.h:49:0, from include/drm/drmP.h:72, from include/kcl/kcl_drm.h:6, from drivers/gpu/drm/ttm/backport/backport.h:6, from <command-line>:0: include/drm/drm_print.h:217:34: note: previous definition of 'drm_debug_printer' was here static inline struct drm_printer drm_debug_printer(const char *prefix) ^~~~~~~~~~~~~~~~~ In file included from drivers/gpu/drm/ttm/backport/backport.h:6:0, from <command-line>:0: >> include/kcl/kcl_drm.h:635:20: error: static declaration of 'drm_mode_is_420_only' follows non-static declaration static inline bool drm_mode_is_420_only(const struct drm_display_info *display, ^~~~~~~~~~~~~~~~~~~~ In file included from include/drm/drm_crtc.h:40:0, from include/drm/drmP.h:69, from include/kcl/kcl_drm.h:6, from drivers/gpu/drm/ttm/backport/backport.h:6, from <command-line>:0: include/drm/drm_modes.h:471:6: note: previous declaration of 'drm_mode_is_420_only' was here bool drm_mode_is_420_only(const struct drm_display_info *display, ^~~~~~~~~~~~~~~~~~~~ In file included from drivers/gpu/drm/ttm/backport/backport.h:6:0, from <command-line>:0: >> include/kcl/kcl_drm.h:642:20: error: static declaration of 'drm_mode_is_420_also' follows non-static declaration static inline bool drm_mode_is_420_also(const struct drm_display_info *display, ^~~~~~~~~~~~~~~~~~~~ In file included from include/drm/drm_crtc.h:40:0, from include/drm/drmP.h:69, from include/kcl/kcl_drm.h:6, from drivers/gpu/drm/ttm/backport/backport.h:6, from <command-line>:0: include/drm/drm_modes.h:473:6: note: previous declaration of 'drm_mode_is_420_also' was here bool drm_mode_is_420_also(const struct drm_display_info *display, ^~~~~~~~~~~~~~~~~~~~ In file included from drivers/gpu/drm/ttm/backport/backport.h:9:0, from <command-line>:0: include/kcl/kcl_kref.h:7:28: error: redefinition of 'kref_read' static inline unsigned int kref_read(const struct kref *kref) ^~~~~~~~~ In file included from include/linux/dma-fence.h:28:0, from include/kcl/kcl_fence.h:10, from drivers/gpu/drm/ttm/backport/backport.h:5, from <command-line>:0: include/linux/kref.h:36:28: note: previous definition of 'kref_read' was here static inline unsigned int kref_read(const struct kref *kref) ^~~~~~~~~ In file included from drivers/gpu/drm/ttm/backport/backport.h:9:0, from <command-line>:0: include/kcl/kcl_kref.h: In function 'kref_read': include/kcl/kcl_kref.h:9:21: error: passing argument 1 of 'atomic_read' from incompatible pointer type [-Werror=incompatible-pointer-types] return atomic_read(&kref->refcount); ^ In file included from arch/x86/include/asm/atomic.h:265:0, from include/linux/atomic.h:7, from include/linux/rcupdate.h:38, from include/kcl/kcl_rcupdate.h:4, from include/kcl/kcl_fence.h:5, from drivers/gpu/drm/ttm/backport/backport.h:5, from <command-line>:0: include/asm-generic/atomic-instrumented.h:19:28: note: expected 'const atomic_t * {aka const struct <anonymous> *}' but argument is of type 'const refcount_t * {aka const struct refcount_struct *}' static __always_inline int atomic_read(const atomic_t *v) ^~~~~~~~~~~ In file included from drivers/gpu/drm/ttm/backport/backport.h:11:0, from <command-line>:0: include/kcl/kcl_mm_types.h: At top level: include/kcl/kcl_mm_types.h:10:3: error: conflicting types for 'pfn_t' } pfn_t; ^~~~~ In file included from include/asm-generic/memory_model.h:5:0, from arch/x86/include/asm/page.h:76, from arch/x86/include/asm/thread_info.h:12, from include/linux/thread_info.h:38, from arch/x86/include/asm/preempt.h:7, from include/linux/preempt.h:78, from include/linux/rcupdate.h:40, from include/kcl/kcl_rcupdate.h:4, from include/kcl/kcl_fence.h:5, from drivers/gpu/drm/ttm/backport/backport.h:5, from <command-line>:0: include/linux/pfn.h:15:3: note: previous declaration of 'pfn_t' was here } pfn_t; ^~~~~ In file included from drivers/gpu/drm/ttm/backport/backport.h:11:0, from <command-line>:0: include/kcl/kcl_mm_types.h:35:26: error: conflicting types for 'vmf_insert_mixed' static inline vm_fault_t vmf_insert_mixed(struct vm_area_struct *vma, ^~~~~~~~~~~~~~~~ In file included from include/linux/scatterlist.h:8:0, from include/linux/dma-mapping.h:11, from include/drm/drmP.h:37, from include/kcl/kcl_drm.h:6, from drivers/gpu/drm/ttm/backport/backport.h:6, from <command-line>:0: include/linux/mm.h:2572:12: note: previous declaration of 'vmf_insert_mixed' was here vm_fault_t vmf_insert_mixed(struct vm_area_struct *vma, unsigned long addr, ^~~~~~~~~~~~~~~~ In file included from drivers/gpu/drm/ttm/backport/backport.h:11:0, from <command-line>:0: include/kcl/kcl_mm_types.h: In function 'vmf_insert_mixed': include/kcl/kcl_mm_types.h:41:8: error: implicit declaration of function 'vm_insert_mixed'; did you mean 'vmf_insert_mixed'? [-Werror=implicit-function-declaration] err = vm_insert_mixed(vma, addr, pfn_t_to_pfn(pfn)); ^~~~~~~~~~~~~~~ vmf_insert_mixed include/kcl/kcl_mm_types.h: At top level: include/kcl/kcl_mm_types.h:53:26: error: static declaration of 'vmf_insert_pfn' follows non-static declaration static inline vm_fault_t vmf_insert_pfn(struct vm_area_struct *vma, ^~~~~~~~~~~~~~ In file included from include/linux/scatterlist.h:8:0, from include/linux/dma-mapping.h:11, from include/drm/drmP.h:37, from include/kcl/kcl_drm.h:6, from drivers/gpu/drm/ttm/backport/backport.h:6, from <command-line>:0: include/linux/mm.h:2568:12: note: previous declaration of 'vmf_insert_pfn' was here vm_fault_t vmf_insert_pfn(struct vm_area_struct *vma, unsigned long addr, ^~~~~~~~~~~~~~ In file included from drivers/gpu/drm/ttm/backport/backport.h:11:0, from <command-line>:0: include/kcl/kcl_mm_types.h: In function 'vmf_insert_pfn': include/kcl/kcl_mm_types.h:56:13: error: implicit declaration of function 'vm_insert_pfn'; did you mean 'vmf_insert_pfn'? [-Werror=implicit-function-declaration] int err = vm_insert_pfn(vma, addr, pfn); ^~~~~~~~~~~~~ vmf_insert_pfn In file included from drivers/gpu/drm/ttm/backport/backport.h:12:0, .. vim +/drm_mode_is_420_only +635 include/kcl/kcl_drm.h 633 634 #ifndef HAVE_DRM_MODE_IS_420_XXX > 635 static inline bool drm_mode_is_420_only(const struct drm_display_info *display, 636 const struct drm_display_mode *mode) 637 { 638 /* DRM < 4.4 ,un-support this pixel format */ 639 printk_once(KERN_WARNING "This kernel version not support API: drm_mode_is_420_only!\n"); 640 return false; 641 } > 642 static inline bool drm_mode_is_420_also(const struct drm_display_info *display, --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation

1 0

[Bug 111415] BUG: kernel NULL pointer dereference - supervisor read access in kernel mode
by bugzilla-daemon＠freedesktop.org 03 Oct '19

03 Oct '19

https://bugs.freedesktop.org/show_bug.cgi?id=111415 Bug ID: 111415 Summary: BUG: kernel NULL pointer dereference - supervisor read access in kernel mode Product: DRI Version: unspecified Hardware: x86-64 (AMD64) OS: Linux (All) Status: NEW Severity: normal Priority: medium Component: DRM/AMDgpu Assignee: dri-devel(a)lists.freedesktop.org Reporter: tseewald(a)gmail.com Created attachment 145088 --> https://bugs.freedesktop.org/attachment.cgi?id=145088&action=edit dmesg of freeze Distribution: Fedora 30 Kernel: 5.2.8 Mesa: 19.1.4 GPU: RX 560 Problem: While browsing the internet using Chromium my entire machine froze, it was completely unresponsive to input but audio continued to play. Snippet of BUG: [173497.820810] BUG: kernel NULL pointer dereference, address: 00000000000002b4 [173497.820815] #PF: supervisor read access in kernel mode [173497.820817] #PF: error_code(0x0000) - not-present page [173497.820818] PGD 0 P4D 0 [173497.820822] Oops: 0000 [#1] SMP PTI [173497.820825] CPU: 2 PID: 21197 Comm: kworker/u8:2 Not tainted 5.2.8-200.fc30.x86_64 #1 [173497.820826] Hardware name: To Be Filled By O.E.M. To Be Filled By O.E.M./Z77 Extreme4, BIOS P2.90 07/11/2013 [173497.820839] Workqueue: events_unbound commit_work [drm_kms_helper] [173497.820953] RIP: 0010:dc_stream_log+0x6/0xb0 [amdgpu] See attached dmesg for full message. Let me know if you need any additional information. -- You are receiving this mail because: You are the assignee for the bug.

1 2

[PATCH v2] FROMLIST: drm/bridge: dw-hdmi: Restore audio when setting a mode
by Cheng-Yi Chiang 03 Oct '19

03 Oct '19

From: Daniel Kurtz <djkurtz(a)chromium.org> When setting a new display mode, dw_hdmi_setup() calls dw_hdmi_enable_video_path(), which disables all hdmi clocks, including the audio clock. We should only (re-)enable the audio clock if audio was already enabled when setting the new mode. Without this patch, on RK3288, there will be HDMI audio on some monitors if i2s was played to headphone when the monitor was plugged. ACER H277HU and ASUS PB278 are two of the monitors showing this issue. Signed-off-by: Cheng-Yi Chiang <cychiang(a)chromium.org> Signed-off-by: Daniel Kurtz <djkurtz(a)chromium.org> Signed-off-by: Yakir Yang <ykk(a)rock-chips.com> --- Change from v1 to v2: - Use audio_lock to protect audio clock. drivers/gpu/drm/bridge/synopsys/dw-hdmi.c | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c index aa7efd4da1c8..749d8e4c535b 100644 --- a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c +++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c @@ -1982,6 +1982,17 @@ static void hdmi_disable_overflow_interrupts(struct dw_hdmi *hdmi) HDMI_IH_MUTE_FC_STAT2); } +static void dw_hdmi_audio_restore(struct dw_hdmi *hdmi) +{ + unsigned long flags; + + spin_lock_irqsave(&hdmi->audio_lock, flags); + + hdmi_enable_audio_clk(hdmi, hdmi->audio_enable); + + spin_unlock_irqrestore(&hdmi->audio_lock, flags); +} + static int dw_hdmi_setup(struct dw_hdmi *hdmi, struct drm_display_mode *mode) { int ret; @@ -2045,7 +2056,7 @@ static int dw_hdmi_setup(struct dw_hdmi *hdmi, struct drm_display_mode *mode) /* HDMI Initialization Step E - Configure audio */ hdmi_clk_regenerator_update_pixel_clock(hdmi); - hdmi_enable_audio_clk(hdmi, true); + dw_hdmi_audio_restore(hdmi); } /* not for DVI mode */ -- 2.23.0.444.g18eeb5a265-goog

1 0

general protection fault in veth_get_stats64
by syzbot 03 Oct '19

03 Oct '19

Hello, syzbot found the following crash on: HEAD commit: a32db7e1 Add linux-next specific files for 20191002 git tree: linux-next console output: https://syzkaller.appspot.com/x/log.txt?x=175ab7cd600000 kernel config: https://syzkaller.appspot.com/x/.config?x=599cf05035799eef dashboard link: https://syzkaller.appspot.com/bug?extid=3f3e5e77d793c7a6fe6c compiler: gcc (GCC) 9.0.0 20181231 (experimental) syz repro: https://syzkaller.appspot.com/x/repro.syz?x=12f8b943600000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=16981a25600000 The bug was bisected to: commit 84da111de0b4be15bd500deff773f5116f39f7be Author: Linus Torvalds <torvalds(a)linux-foundation.org> Date: Sat Sep 21 17:07:42 2019 +0000 Merge tag 'for-linus-hmm' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=17c55847600000 final crash: https://syzkaller.appspot.com/x/report.txt?x=14255847600000 console output: https://syzkaller.appspot.com/x/log.txt?x=10255847600000 IMPORTANT: if you fix the bug, please add the following tag to the commit: Reported-by: syzbot+3f3e5e77d793c7a6fe6c(a)syzkaller.appspotmail.com Fixes: 84da111de0b4 ("Merge tag 'for-linus-hmm' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma") RSP: 002b:00007fff0ba6c998 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00000000004424a9 RDX: 0000000000000000 RSI: 0000000020000140 RDI: 0000000000000003 RBP: 0000000000000000 R08: 0000000000000002 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: ffffffffffffffff R13: 0000000000000004 R14: 0000000000000000 R15: 0000000000000000 kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 8605 Comm: syz-executor330 Not tainted 5.4.0-rc1-next-20191002 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:veth_stats_rx drivers/net/veth.c:322 [inline] RIP: 0010:veth_get_stats64+0x523/0x900 drivers/net/veth.c:356 Code: 89 85 60 ff ff ff e8 6c 74 31 fd 49 63 c7 48 69 c0 c0 02 00 00 48 03 85 60 ff ff ff 48 8d b8 a0 01 00 00 48 89 fa 48 c1 ea 03 <42> 80 3c 32 00 0f 85 c9 02 00 00 48 8d b8 a8 01 00 00 48 8b 90 a0 RSP: 0018:ffff88809996ed00 EFLAGS: 00010202 RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffffffff84418daf RDX: 0000000000000034 RSI: ffffffff84418e04 RDI: 00000000000001a0 RBP: ffff88809996ede0 R08: ffff888093182180 R09: ffffed1013202d6a R10: ffffed1013202d69 R11: ffff888099016b4f R12: 0000000000000000 R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000000 FS: 0000000001f4a880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000140 CR3: 000000009a80b000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: dev_get_stats+0x8e/0x280 net/core/dev.c:9220 rtnl_fill_stats+0x4d/0xac0 net/core/rtnetlink.c:1191 rtnl_fill_ifinfo+0x10ad/0x3af0 net/core/rtnetlink.c:1717 rtmsg_ifinfo_build_skb+0xc9/0x1a0 net/core/rtnetlink.c:3635 rtmsg_ifinfo_event.part.0+0x43/0xe0 net/core/rtnetlink.c:3667 rtmsg_ifinfo_event net/core/rtnetlink.c:3678 [inline] rtmsg_ifinfo+0x8d/0xa0 net/core/rtnetlink.c:3676 __dev_notify_flags+0x235/0x2c0 net/core/dev.c:7757 rtnl_configure_link+0x175/0x250 net/core/rtnetlink.c:2968 __rtnl_newlink+0x10c4/0x16d0 net/core/rtnetlink.c:3285 rtnl_newlink+0x69/0xa0 net/core/rtnetlink.c:3325 rtnetlink_rcv_msg+0x463/0xb00 net/core/rtnetlink.c:5386 netlink_rcv_skb+0x177/0x450 net/netlink/af_netlink.c:2477 rtnetlink_rcv+0x1d/0x30 net/core/rtnetlink.c:5404 netlink_unicast_kernel net/netlink/af_netlink.c:1302 [inline] netlink_unicast+0x531/0x710 net/netlink/af_netlink.c:1328 netlink_sendmsg+0x8a5/0xd60 net/netlink/af_netlink.c:1917 sock_sendmsg_nosec net/socket.c:638 [inline] sock_sendmsg+0xd7/0x130 net/socket.c:658 ___sys_sendmsg+0x803/0x920 net/socket.c:2312 __sys_sendmsg+0x105/0x1d0 net/socket.c:2357 __do_sys_sendmsg net/socket.c:2366 [inline] __se_sys_sendmsg net/socket.c:2364 [inline] __x64_sys_sendmsg+0x78/0xb0 net/socket.c:2364 do_syscall_64+0xfa/0x760 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4424a9 Code: e8 9c 07 03 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 3b 0a fc ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fff0ba6c998 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00000000004424a9 RDX: 0000000000000000 RSI: 0000000020000140 RDI: 0000000000000003 RBP: 0000000000000000 R08: 0000000000000002 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: ffffffffffffffff R13: 0000000000000004 R14: 0000000000000000 R15: 0000000000000000 Modules linked in: ---[ end trace cc6dec8a4962bfff ]--- RIP: 0010:veth_stats_rx drivers/net/veth.c:322 [inline] RIP: 0010:veth_get_stats64+0x523/0x900 drivers/net/veth.c:356 Code: 89 85 60 ff ff ff e8 6c 74 31 fd 49 63 c7 48 69 c0 c0 02 00 00 48 03 85 60 ff ff ff 48 8d b8 a0 01 00 00 48 89 fa 48 c1 ea 03 <42> 80 3c 32 00 0f 85 c9 02 00 00 48 8d b8 a8 01 00 00 48 8b 90 a0 RSP: 0018:ffff88809996ed00 EFLAGS: 00010202 RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffffffff84418daf RDX: 0000000000000034 RSI: ffffffff84418e04 RDI: 00000000000001a0 RBP: ffff88809996ede0 R08: ffff888093182180 R09: ffffed1013202d6a R10: ffffed1013202d69 R11: ffff888099016b4f R12: 0000000000000000 R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000000 FS: 0000000001f4a880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000140 CR3: 000000009a80b000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 --- This bug is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller(a)googlegroups.com. syzbot will keep track of this bug report. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. For information about bisection process see: https://goo.gl/tpsmEJ#bisection syzbot can test patches for this bug, for details see: https://goo.gl/tpsmEJ#testing-patches

3 2

[PATCH tip/core/rcu 3/9] drivers/gpu: Replace rcu_swap_protected() with rcu_replace()
by paulmck＠kernel.org 03 Oct '19

03 Oct '19

From: "Paul E. McKenney" <paulmck(a)kernel.org> This commit replaces the use of rcu_swap_protected() with the more intuitively appealing rcu_replace() as a step towards removing rcu_swap_protected(). Link: https://lore.kernel.org/lkml/CAHk-=wiAsJLw1egFEE=Z7-GGtM6wcvtyytXZA1+BHqta4… Reported-by: Linus Torvalds <torvalds(a)linux-foundation.org> Signed-off-by: Paul E. McKenney <paulmck(a)kernel.org> Cc: Jani Nikula <jani.nikula(a)linux.intel.com> Cc: Joonas Lahtinen <joonas.lahtinen(a)linux.intel.com> Cc: Rodrigo Vivi <rodrigo.vivi(a)intel.com> Cc: David Airlie <airlied(a)linux.ie> Cc: Daniel Vetter <daniel(a)ffwll.ch> Cc: Chris Wilson <chris(a)chris-wilson.co.uk> Cc: Tvrtko Ursulin <tvrtko.ursulin(a)intel.com> Cc: <intel-gfx(a)lists.freedesktop.org> Cc: <dri-devel(a)lists.freedesktop.org> --- drivers/gpu/drm/i915/gem/i915_gem_context.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/gem/i915_gem_context.c b/drivers/gpu/drm/i915/gem/i915_gem_context.c index 1cdfe05..c5c22c4 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_context.c +++ b/drivers/gpu/drm/i915/gem/i915_gem_context.c @@ -1629,7 +1629,7 @@ set_engines(struct i915_gem_context *ctx, i915_gem_context_set_user_engines(ctx); else i915_gem_context_clear_user_engines(ctx); - rcu_swap_protected(ctx->engines, set.engines, 1); + set.engines = rcu_replace(ctx->engines, set.engines, 1); mutex_unlock(&ctx->engines_mutex); call_rcu(&set.engines->rcu, free_engines_rcu); -- 2.9.5

1 0

Re: [Bug 205065] New: workqueue: PF_MEMALLOC task 173(kswapd0) is flushing !WQ_MEM_RECLAIM events:gen6_pm_rps_work [i915]
by Andrew Morton 02 Oct '19

02 Oct '19

(switched to email. Please respond via emailed reply-to-all, not via the bugzilla web interface). On Tue, 01 Oct 2019 17:06:35 +0000 bugzilla-daemon(a)bugzilla.kernel.org wrote: > https://bugzilla.kernel.org/show_bug.cgi?id=205065 > > Bug ID: 205065 > Summary: workqueue: PF_MEMALLOC task 173(kswapd0) is flushing > !WQ_MEM_RECLAIM events:gen6_pm_rps_work [i915] > Product: Memory Management > Version: 2.5 > Kernel Version: Ubuntu 5.3.0-13.14-generic 5.3.0 > Hardware: All > OS: Linux > Tree: Mainline > Status: NEW > Severity: normal > Priority: P1 > Component: Other > Assignee: akpm(a)linux-foundation.org > Reporter: romanescu.2019(a)gmail.com > Regression: No Maybe Tejun can help interpret this ;) > Open bug in launchpad.net > https://bugs.launchpad.net/bugs/1846241 > > dmesg: > [ 9998.518472] ------------[ cut here ]------------ > [ 9998.518505] workqueue: PF_MEMALLOC task 173(kswapd0) is flushing > !WQ_MEM_RECLAIM events:gen6_pm_rps_work [i915] > [ 9998.518516] WARNING: CPU: 5 PID: 173 at kernel/workqueue.c:2598 > check_flush_dependency+0xa7/0x140 > [ 9998.518517] Modules linked in: usbhid rfcomm ccm cmac bnep > snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic ledtrig_audio > nls_iso8859_1 snd_soc_skl snd_soc_hdac_hda snd_hda_ext_core snd_soc_skl_ipc > snd_soc_sst_ipc snd_soc_sst_dsp snd_soc_acpi_intel_match snd_soc_acpi > snd_soc_core snd_compress ac97_bus snd_pcm_dmaengine x86_pkg_temp_thermal > intel_powerclamp coretemp snd_hda_intel snd_hda_codec kvm_intel snd_hda_core > kvm irqbypass snd_hwdep snd_pcm snd_seq_midi snd_seq_midi_event intel_rapl_msr > snd_rawmidi ath9k_htc mei_hdcp ath9k_common btusb uvcvideo crct10dif_pclmul > ath9k_hw btrtl videobuf2_vmalloc crc32_pclmul videobuf2_memops btbcm ath > snd_seq btintel videobuf2_v4l2 i915 ghash_clmulni_intel mac80211 > videobuf2_common hid_sensor_incl_3d bluetooth hid_sensor_magn_3d > hid_sensor_gyro_3d hid_sensor_accel_3d hid_sensor_rotation videodev > snd_seq_device hid_sensor_trigger snd_timer cfg80211 drm_kms_helper mc > industrialio_triggered_buffer ecdh_generic kfifo_buf ecc > [ 9998.518560] processor_thermal_device hid_sensor_iio_common libarc4 > aesni_intel spi_pxa2xx_platform drm snd intel_rapl_common industrialio > aes_x86_64 crypto_simd i2c_algo_bit fb_sys_fops input_leds cryptd glue_helper > joydev dw_dmac intel_cstate syscopyarea sysfillrect intel_xhci_usb_role_switch > mei_me intel_rapl_perf serio_raw wmi_bmof intel_wmi_thunderbolt dw_dmac_core > soundcore idma64 8250_dw cros_ec_ishtp mei hid_multitouch roles virt_dma > cros_ec_core sysimgblt intel_pch_thermal intel_soc_dts_iosf hp_wmi > soc_button_array int3403_thermal intel_vbtn int340x_thermal_zone sparse_keymap > hp_accel acpi_pad lis3lv02d hp_wireless input_polldev int3400_thermal > acpi_thermal_rel mac_hid sch_fq_codel parport_pc ppdev sunrpc lp parport > ip_tables x_tables autofs4 btrfs xor zstd_compress raid6_pq libcrc32c > hid_sensor_custom hid_sensor_hub intel_ishtp_loader intel_ishtp_hid hid_generic > psmouse sdhci_pci cqhci i2c_i801 ahci intel_lpss_pci intel_ish_ipc sdhci > i2c_hid libahci intel_lpss intel_ishtp hid wmi > [ 9998.518603] pinctrl_sunrisepoint video pinctrl_intel > [ 9998.518609] CPU: 5 PID: 173 Comm: kswapd0 Not tainted 5.3.0-13-generic > #14-Ubuntu > [ 9998.518610] Hardware name: HP HP Pavilion x360 Convertible 14-cd0xxx/8486, > BIOS F.34 04/29/2019 > [ 9998.518614] RIP: 0010:check_flush_dependency+0xa7/0x140 > [ 9998.518616] Code: 8d 8a 70 0a 00 00 4d 89 e0 48 8d 8b b0 00 00 00 4c 89 ca > 48 c7 c7 e8 93 d3 a1 48 89 45 e0 c6 05 c4 29 75 01 01 e8 f4 13 fe ff <0f> 0b 48 > 8b 45 e0 eb 0f 4c 89 ef e8 39 8e 00 00 41 f6 45 25 08 75 > [ 9998.518618] RSP: 0018:ffffba44c034f7f0 EFLAGS: 00010086 > [ 9998.518620] RAX: 0000000000000000 RBX: ffff9d76a400ce00 RCX: > 0000000000000000 > [ 9998.518621] RDX: 0000000000000063 RSI: ffffffffa2581fe3 RDI: > 0000000000000046 > [ 9998.518623] RBP: ffffba44c034f810 R08: ffffffffa2581f80 R09: > 0000000000000063 > [ 9998.518624] R10: ffffffffa2582360 R11: 00000000a2581fcb R12: > ffffffffc1092710 > [ 9998.518625] R13: ffff9d76a30b5e00 R14: 0000000000000001 R15: > ffff9d76a5df0700 > [ 9998.518627] FS: 0000000000000000(0000) GS:ffff9d76a5d40000(0000) > knlGS:0000000000000000 > [ 9998.518628] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 > [ 9998.518630] CR2: 00007f877e503000 CR3: 000000019be0a002 CR4: > 00000000003606e0 > [ 9998.518631] Call Trace: > [ 9998.518636] __flush_work+0x97/0x1d0 > [ 9998.518641] ? enqueue_hrtimer+0x3d/0x90 > [ 9998.518644] __cancel_work_timer+0x10e/0x190 > [ 9998.518648] ? _cond_resched+0x19/0x30 > [ 9998.518651] ? synchronize_irq+0x3e/0xb0 > [ 9998.518654] cancel_work_sync+0x10/0x20 > [ 9998.518692] gen6_disable_rps_interrupts+0x95/0xc0 [i915] > [ 9998.518732] gen6_rps_idle+0x1f/0xf0 [i915] > [ 9998.518772] intel_gt_park+0x5b/0x60 [i915] > [ 9998.518809] __intel_wakeref_put_last+0x1c/0x50 [i915] > [ 9998.518843] intel_gt_pm_put+0x44/0x50 [i915] > [ 9998.518877] __engine_park+0xc3/0xd0 [i915] > [ 9998.518909] __intel_wakeref_put_last+0x1c/0x50 [i915] > [ 9998.518943] intel_engine_pm_put+0x44/0x50 [i915] > [ 9998.518977] intel_context_exit_engine+0x12/0x20 [i915] > [ 9998.519015] i915_request_retire+0x1b2/0x370 [i915] > [ 9998.519053] ring_retire_requests+0x53/0x60 [i915] > [ 9998.519091] i915_retire_requests+0x49/0x90 [i915] > [ 9998.519128] i915_gem_shrink+0xcb/0x4d0 [i915] > [ 9998.519131] ? discard_new_inode+0x70/0x70 > [ 9998.519133] ? list_lru_walk_one+0x4f/0x80 > [ 9998.519135] ? prune_icache_sb+0x5c/0x80 > [ 9998.519172] i915_gem_shrinker_scan+0x64/0x120 [i915] > [ 9998.519174] do_shrink_slab+0x150/0x2a0 > [ 9998.519176] ? shrink_node_memcg+0x2e5/0x370 > [ 9998.519178] shrink_slab+0xac/0x290 > [ 9998.519180] shrink_node+0xf4/0x490 > [ 9998.519183] balance_pgdat+0x319/0x590 > [ 9998.519186] kswapd+0x1ff/0x3c0 > [ 9998.519188] ? wait_woken+0x80/0x80 > [ 9998.519192] kthread+0x104/0x140 > [ 9998.519193] ? balance_pgdat+0x590/0x590 > [ 9998.519195] ? kthread_park+0x80/0x80 > [ 9998.519198] ret_from_fork+0x35/0x40 > [ 9998.519201] ---[ end trace 4fb7c7f43a69494a ]--- > > -- > You are receiving this mail because: > You are the assignee for the bug.

3 2

[Bug 205069] New: Black screen when starting graphical environment
by bugzilla-daemon＠bugzilla.kernel.org 02 Oct '19

02 Oct '19

https://bugzilla.kernel.org/show_bug.cgi?id=205069 Bug ID: 205069 Summary: Black screen when starting graphical environment Product: Drivers Version: 2.5 Kernel Version: 5.3.1, 5.4.0-rc1, latest Hardware: x86-64 OS: Linux Tree: Mainline Status: NEW Severity: high Priority: P1 Component: Video(DRI - non Intel) Assignee: drivers_video-dri(a)kernel-bugs.osdl.org Reporter: freddyreimer(a)comcast.net Regression: No Created attachment 285285 --> https://bugzilla.kernel.org/attachment.cgi?id=285285&action=edit kernel .config 5.4.0-rc1 Hello there On kernels 5.3.1 and 5.4.0-rc1, I get a black screen with a white underscore cursor in the upper left. The display gets stuck in this state, with no way to switch to a different TTY or leave this aside from hitting the reset button. I can secure-shell into the box and get a login at this time, but killing the process does not fix the display. Sway WM also does this, with it just getting stuck at the prompt entry. I have an AMD RX 5700 graphics card, using the amdgpu driver. When I do some manual configuration by blacklisting amdgpu and writing a stanza in xorg conf for vesa, I am able to get X running using vesa. uname -a output: Linux gentoo 5.4.0-rc1 #1 SMP Tue Oct 1 14:24:57 EDT 2019 x86_64 AMD Ryzen 5 3600 6-Core Processor AuthenticAMD GNU/Linux -- You are receiving this mail because: You are watching the assignee of the bug.

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dri-devel October 2019