Hi,
While trying out v4.8-rc2 on Juno r2 (arm64), I ran into the following crash when probing the nvidia graphics card attached to the PCIe slot. So I tried rc1 and got the same crash. The card probes without any errors on v4.7.
Anybody familiear with the recent changes knows what might have led to the below crashlog?
Thanks, Punit
------------->8-------------
[ 2.996678] [drm] Initialized drm 1.1.0 20060810 [ 3.001495] nouveau 0000:06:00.0: enabling device (0000 -> 0003) [ 3.007574] nouveau 0000:06:00.0: NVIDIA GT218 (0a8c00b1) [ 3.145407] nouveau 0000:06:00.0: bios: version 70.18.9f.00.09 [ 3.202137] nouveau 0000:06:00.0: fb: 512 MiB DDR3 [ 3.260766] [TTM] Zone kernel: Available graphics memory: 4070004 kiB [ 3.267243] [TTM] Zone dma32: Available graphics memory: 2097152 kiB [ 3.273715] [TTM] Initializing pool allocator [ 3.278048] [TTM] Initializing DMA pool allocator [ 3.282738] nouveau 0000:06:00.0: DRM: VRAM: 512 MiB [ 3.287663] nouveau 0000:06:00.0: DRM: GART: 1048576 MiB [ 3.292935] nouveau 0000:06:00.0: DRM: TMDS table version 2.0 [ 3.298634] nouveau 0000:06:00.0: DRM: DCB version 4.0 [ 3.303731] nouveau 0000:06:00.0: DRM: DCB outp 00: 02000360 00000000 [ 3.310118] nouveau 0000:06:00.0: DRM: DCB outp 01: 02000362 00020010 [ 3.316505] nouveau 0000:06:00.0: DRM: DCB outp 02: 028003a6 0f220010 [ 3.322891] nouveau 0000:06:00.0: DRM: DCB outp 03: 01011380 00000000 [ 3.329277] nouveau 0000:06:00.0: DRM: DCB outp 04: 08011382 00020010 [ 3.335663] nouveau 0000:06:00.0: DRM: DCB outp 05: 088113c6 0f220010 [ 3.342049] nouveau 0000:06:00.0: DRM: DCB conn 00: 00101064 [ 3.347661] nouveau 0000:06:00.0: DRM: DCB conn 01: 00202165 [ 3.359132] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013). [ 3.365698] [drm] Driver supports precise vblank timestamp query. [ 3.412273] nouveau 0000:06:00.0: DRM: MM: using COPY for buffer copies [ 3.445319] nouveau 0000:06:00.0: DRM: allocated 1024x768 fb: 0x70000, bo ffff8009764ba400 [ 3.570962] Unable to handle kernel paging request at virtual address ffff0000091e11d4 [ 3.570964] pgd = ffff000009051000 [ 3.570971] [ffff0000091e11d4] *pgd=00000009ffffe003, *pud=00000009ffffd003, *pmd=00000009ffff9003, *pte=00e80009f5cc4703 [ 3.570975] Internal error: Oops: 96000061 [#1] PREEMPT SMP [ 3.570978] Modules linked in: [ 3.570982] CPU: 2 PID: 1 Comm: swapper/0 Not tainted 4.8.0-rc2-00001-g5077753 #1 [ 3.570984] Hardware name: ARM LTD ARM Juno Development Platform/ARM Juno Development Platform, BIOS EDK II Aug 5 2016 [ 3.570986] task: ffff800976ca8000 task.stack: ffff800976cb0000 [ 3.570999] PC is at __memcpy+0x7c/0x180 [ 3.571003] LR is at OUT_RINGp+0x34/0x70 [ 3.571006] pc : [<ffff00000841077c>] lr : [<ffff000008672f44>] pstate: 80000145 [ 3.571007] sp : ffff800976cb3350 [ 3.571011] x29: ffff800976cb3350 x28: 000000000000000e [ 3.571014] x27: ffff8009760f2000 x26: 0000000000000001 [ 3.571018] x25: 00000000000007ff x24: 0000000040006860 [ 3.571021] x23: 0000000000000005 x22: ffff8009760f2010 [ 3.571024] x21: 0000000000000004 x20: 0000000000000004 [ 3.571026] x19: ffff800976f67000 x18: 0000000000000000 [ 3.571029] x17: 0000000000000008 x16: ffff800976000c00 [ 3.571032] x15: 0000000000000018 x14: 0000030300000326 [ 3.571035] x13: ffff8009766b1000 x12: 0000000000000540 [ 3.571038] x11: 0000000002b68908 x10: 0000000000000870 [ 3.571042] x9 : 0000000000000005 x8 : 0000000000000000 [ 3.571045] x7 : 0000000000000000 x6 : ffff0000091e11d4 [ 3.571048] x5 : 00000000ffffffff x4 : 0000000000000000 [ 3.571051] x3 : 0000000000000010 x2 : 0000000000000010 [ 3.571053] x1 : ffff8009760f2010 x0 : ffff0000091e11d4 [ 3.571054] [ 3.571057] Process swapper/0 (pid: 1, stack limit = 0xffff800976cb0020) [ 3.571059] Stack: (0xffff800976cb3350 to 0xffff800976cb4000) [ 3.571062] 3340: ffff800976cb3370 ffff00000866fcb4 [ 3.571065] 3360: ffff800976f67000 0000000000000000 ffff800976cb33c0 ffff00000866e2cc [ 3.571068] 3380: ffff8009761c1800 ffff800975cee400 ffff8009766b0058 ffff8009766b0000 [ 3.571071] 33a0: 0000000000000010 0000000000000010 ffff8009761c1800 ffff80097619ac00 [ 3.571074] 33c0: ffff800976cb33f0 ffff0000084aa794 ffff800975cee400 ffff800976cb34d8 [ 3.571076] 33e0: 0000000000000001 ffff800975cee450 ffff800976cb3450 ffff0000084aa1c4 [ 3.571079] 3400: ffff80097619ac00 ffff800976cb34d8 ffff800975cee200 ffff8009761c1800 [ 3.571082] 3420: 0000000000000720 0000000000000000 ffff000008a6ad08 0000000000000002 [ 3.571084] 3440: 0000000000000000 ffff000008679bf8 ffff800976cb3540 ffff0000084a64d8 [ 3.571087] 3460: ffff800976c14000 ffff8009761c1800 ffff0000084a9cd0 0000000000000002 [ 3.571089] 3480: 0000000000000720 ffff800976c141e0 ffff800976c14200 0000000000000000 [ 3.571092] 34a0: 0000000000000007 0000000000000100 ffff000008b1c308 ffff00000866b770 [ 3.571095] 34c0: ffff800900000000 0000000208679c60 ffff8009766b0000 000000010000003b [ 3.571098] 34e0: ffff800975cee200 0000000000000000 000001d000000000 0000001000000008 [ 3.571101] 3500: 0000000000000007 ffff0000084a6401 ffff000008a6ad08 ffff8009761c1800 [ 3.571103] 3520: ffff0000084a9cd0 0000000000000002 0000000000000720 ffff0000085a5dc4 [ 3.571106] 3540: ffff800976cb35a0 ffff000008540120 ffff800976c14000 ffff000008f78000 [ 3.571108] 3560: 0000000000000000 0000000000000030 ffff000009030000 0000000000000720 [ 3.571111] 3580: 0000000000000080 0000000000000500 0000000000000000 ffff8009764ed000 [ 3.571113] 35a0: ffff800976cb35c0 ffff000008540e48 ffff800976c14000 ffff800976493000 [ 3.571116] 35c0: ffff800976cb3610 ffff0000084a4a94 0000000000000000 ffff800976493000 [ 3.571119] 35e0: ffff800976c14000 0000000000000030 ffff000009030000 0000000000000000 [ 3.571121] 3600: ffff800976cb3610 ffff0000084a4a88 ffff800976cb3680 ffff0000084a4e40 [ 3.571124] 3620: ffff800976c14000 ffff000009030000 ffff000009030a70 0000000000000000 [ 3.571127] 3640: ffff800976c14000 ffff000008f6d000 0000000000000001 0000000000000100 [ 3.571129] 3660: ffff80097619ac00 ffff8009761c1800 ffff800976cb3680 ffff000000000030 [ 3.571132] 3680: ffff800976cb3700 ffff00000854053c ffff800976c14000 ffff000009036350 [ 3.571134] 36a0: 0000000000000000 0000000000000000 0000000000000001 0000000000000000 [ 3.571137] 36c0: ffff000008aaab70 ffff000009035000 ffff000008d21718 0000000000000001 [ 3.571140] 36e0: 0000008000000030 0000008000000030 ffff000009035000 ffff000009031000 [ 3.571142] 3700: ffff800976cb3730 ffff000008541940 ffff800976c14000 0000000000000000 [ 3.571145] 3720: 000000000000003e 0000000000000000 ffff800976cb37b0 ffff000008541ee8 [ 3.571147] 3740: 0000000000000000 0000000000000000 0000000000000000 000000000000003e [ 3.571150] 3760: 0000000000000001 ffff000008aaab70 ffff0000090354c0 ffff0000090360f0 [ 3.571153] 3780: 0000000001d00000 0000000000000000 ffff0000090356e0 0000000000000000 [ 3.571155] 37a0: 0000000000000001 ffff0000090354d0 ffff800976cb3800 ffff0000084a50c4 [ 3.571158] 37c0: ffff000009031000 ffff000008f6d000 ffff000008f6d7b0 ffff800976cb39b0 [ 3.571160] 37e0: ffff000009031000 ffff000008f6d7b0 ffff8009761c1800 ffff8009761c1a98 [ 3.571163] 3800: ffff800976cb3830 ffff0000084a89ac 0000000000000000 0000000000000000 [ 3.571166] 3820: ffff000008f6d7b0 0000000000000000 ffff800976cb38b0 ffff0000080d8ea8 [ 3.571168] 3840: 0000000000000000 00000000fffffffe 0000000000000000 ffff800976cb39b0 [ 3.571171] 3860: 0000000000000005 0000000000000000 ffff8009761c1810 ffff8009761c1a98 [ 3.571173] 3880: 0000000001d00000 0000000000000000 ffff000008f6db28 ffff800976f65ac8 [ 3.571176] 38a0: ffff8009761c1800 ffff000008f6d000 ffff800976cb38f0 ffff0000080d9284 [ 3.571178] 38c0: ffff000008f6d950 0000000000000005 ffff800976cb39b0 00000000ffffffff [ 3.571181] 38e0: 0000000000000000 ffff800976cb39c0 ffff800976cb3930 ffff0000080d92dc [ 3.571184] 3900: ffff8009761c1800 0000000000000000 ffff000009032bd8 ffff000008f6d000 [ 3.571186] 3920: ffff000008f28dc8 ffff0000084ad914 ffff800976cb3940 ffff0000084ab5f4 [ 3.571189] 3940: ffff800976cb3950 ffff0000084ad968 ffff800976cb3a00 ffff000008587640 [ 3.571191] 3960: ffff8009764ba000 ffff000008f82000 ffff8009761c1800 0000000000000005 [ 3.571194] 3980: 0000000000002000 0000000000002000 0000000000000020 ffff8009764ed230 [ 3.571197] 39a0: 000000000000b06f ffff8009767e1180 ffff8009761c1800 0000100008ad2fd0 [ 3.571199] 39c0: 0000000000000000 0000040000000000 0000000000000300 0000000000000000 [ 3.571202] 39e0: 0000000000000000 0000000000000000 0000000000000000 ffff800900000020 [ 3.571205] 3a00: ffff800976cb3a70 ffff00000866e670 ffff8009764ed000 0000000000000020 [ 3.571207] 3a20: ffff8009764ba000 ffff8009766b0000 ffff8009766b00d8 ffff8009766b0840 [ 3.571210] 3a40: 000000000000a16f 0000000000000060 ffff800976cb3a70 0000030000000400 [ 3.571212] 3a60: 0000030000000400 0000001800000020 ffff800976cb3aa0 ffff00000865dad8 [ 3.571215] 3a80: ffff8009766b0000 ffff8009766b0890 ffff8009764ed000 ffff8009766b00a8 [ 3.571218] 3aa0: ffff800976cb3b30 ffff000008590bcc ffff8009764ed000 0000000000000000 [ 3.571220] 3ac0: ffff000008f82000 0000000000000000 ffff00000903b728 ffff000008f9af08 [ 3.571223] 3ae0: ffff000008e18230 ffff000008e6f608 ffff000008ed7710 0000000000000000 [ 3.571225] 3b00: 0000000000000000 0000000000000000 ffffffffffffffff 0000000000030100 [ 3.571228] 3b20: 000000001feed000 000000001feed01f ffff800976cb3b60 ffff000008592038 [ 3.571231] 3b40: ffff8009764ed000 ffff80097618a000 0000000000000000 ffff80097618a0a0 [ 3.571233] 3b60: ffff800976cb3ba0 ffff00000865d2bc 0000000000000000 ffff80097618a000 [ 3.571236] 3b80: ffff000008f9af08 ffff00000903b718 ffff000008f9ae10 ffff000008e20468 [ 3.571238] 3ba0: ffff800976cb3be0 ffff000008486c48 ffff80097618a0a0 ffff000008f9af08 [ 3.571241] 3bc0: ffff80097618a000 ffff000008f9ae78 ffff80097618a000 ffff800976000c00 [ 3.571244] 3be0: ffff800976cb3c20 ffff000008691604 ffff80097618a0a0 ffff00000903b000 [ 3.571246] 3c00: 0000000000000000 ffff000008f9ae78 0000000000000000 ffff00000903b000 [ 3.571249] 3c20: ffff800976cb3c60 ffff00000869175c ffff80097618a0a0 ffff000008f9ae78 [ 3.571251] 3c40: ffff80097618a100 ffff000008f6b8e8 ffff000008f9c000 ffff0000086916d8 [ 3.571254] 3c60: ffff800976cb3c90 ffff00000868f5f0 0000000000000000 ffff000008f9ae78 [ 3.571256] 3c80: ffff0000086916b0 ffff800976cb3ce0 ffff800976cb3cd0 ffff000008690d98 [ 3.571259] 3ca0: ffff000008f9ae78 ffff800976136400 0000000000000000 00000000ffffffe0 [ 3.571262] 3cc0: ffff800976f70aa8 ffff80097649dc68 ffff800976cb3ce0 ffff0000086908d8 [ 3.571264] 3ce0: ffff800976cb3d20 ffff000008691f20 ffff000008f9ae78 ffff000009039000 [ 3.571267] 3d00: ffff00000903b728 ffff000008f9ae10 ffff000008b1ae48 ffff000008e6f608 [ 3.571269] 3d20: ffff800976cb3d40 ffff000008485a24 ffff000008b1a000 ffff000009039000 [ 3.571272] 3d40: ffff800976cb3d50 ffff00000859245c ffff800976cb3d90 ffff000008e4cf7c [ 3.571275] 3d60: ffff000008b1a000 ffff000009039000 ffff00000903b000 ffff000008f9ae08 [ 3.571277] 3d80: ffff800976cb3d90 ffff000008e4cf6c ffff800976cb3dd0 ffff0000080832a8 [ 3.571280] 3da0: ffff000008e4cd70 ffff800976cb0000 0000000000000000 0000000000000006 [ 3.571282] 3dc0: ffff000009006000 0000000000000006 ffff800976cb3e40 ffff000008e20d08 [ 3.571285] 3de0: 0000000000000125 ffff000009006000 ffff000008e6f618 0000000000000006 [ 3.571288] 3e00: ffff000008ed7000 0000000000000000 ffff000009006000 ffff000008ce2b00 [ 3.571290] 3e20: 0000000600000006 ffff000008e20468 0000000000000000 ffff000008e18230 [ 3.571293] 3e40: ffff800976cb3ea0 ffff0000089fd6d0 ffff0000089fd6c0 0000000000000000 [ 3.571295] 3e60: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 [ 3.571298] 3e80: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 [ 3.571300] 3ea0: 0000000000000000 ffff000008082e90 ffff0000089fd6c0 0000000000000000 [ 3.571302] 3ec0: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 [ 3.571305] 3ee0: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 [ 3.571307] 3f00: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 [ 3.571310] 3f20: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 [ 3.571312] 3f40: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 [ 3.571314] 3f60: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 [ 3.571317] 3f80: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 [ 3.571319] 3fa0: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 [ 3.571322] 3fc0: 0000000000000000 0000000000000005 0000000000000000 0000000000000000 [ 3.571324] 3fe0: 0000000000000000 0000000000000000 5000008000004000 0400000005004242 [ 3.571326] Call trace: [ 3.571328] Exception stack(0xffff800976cb3180 to 0xffff800976cb32b0) [ 3.571331] 3180: ffff800976f67000 0001000000000000 ffff800976cb3350 ffff00000841077c [ 3.571334] 31a0: ffff800976cb31d0 ffff0000080e5840 ffff800976ca8000 0000000000004a24 [ 3.571337] 31c0: ffff800976cb31d0 ffff000008619d0c ffff800976cb3210 ffff0000085bad98 [ 3.571339] 31e0: 0000000000000010 ffff8009761e1a00 ffff800976cb3318 ffff800976cb3320 [ 3.571342] 3200: 0000000000000030 00000000000000ff ffff800976cb3220 ffff0000085b948c [ 3.571344] 3220: ffff0000091e11d4 ffff8009760f2010 0000000000000010 0000000000000010 [ 3.571347] 3240: 0000000000000000 00000000ffffffff ffff0000091e11d4 0000000000000000 [ 3.571349] 3260: 0000000000000000 0000000000000005 0000000000000870 0000000002b68908 [ 3.571352] 3280: 0000000000000540 ffff8009766b1000 0000030300000326 0000000000000018 [ 3.571354] 32a0: ffff800976000c00 0000000000000008 [ 3.571359] [<ffff00000841077c>] __memcpy+0x7c/0x180 [ 3.571364] [<ffff00000866fcb4>] nv50_fbcon_imageblit+0x204/0x338 [ 3.571367] [<ffff00000866e2cc>] nouveau_fbcon_imageblit+0x94/0xe0 [ 3.571372] [<ffff0000084aa794>] soft_cursor+0x15c/0x1e0 [ 3.571375] [<ffff0000084aa1c4>] bit_cursor+0x4f4/0x538 [ 3.571379] [<ffff0000084a64d8>] fbcon_cursor+0x128/0x1b0 [ 3.571383] [<ffff000008540120>] hide_cursor+0x38/0xa0 [ 3.571385] [<ffff000008540e48>] redraw_screen+0x120/0x228 [ 3.571389] [<ffff0000084a4a94>] fbcon_prepare_logo+0x394/0x3f8 [ 3.571392] [<ffff0000084a4e40>] fbcon_init+0x348/0x558 [ 3.571394] [<ffff00000854053c>] visual_init+0xb4/0x108 [ 3.571397] [<ffff000008541940>] do_bind_con_driver+0x1b8/0x3a0 [ 3.571400] [<ffff000008541ee8>] do_take_over_console+0x150/0x1d0 [ 3.571404] [<ffff0000084a50c4>] do_fbcon_takeover+0x74/0xf8 [ 3.571407] [<ffff0000084a89ac>] fbcon_event_notify+0x8e4/0x910 [ 3.571412] [<ffff0000080d8ea8>] notifier_call_chain+0x50/0x90 [ 3.571415] [<ffff0000080d9284>] __blocking_notifier_call_chain+0x4c/0x90 [ 3.571418] [<ffff0000080d92dc>] blocking_notifier_call_chain+0x14/0x20 [ 3.571422] [<ffff0000084ab5f4>] fb_notifier_call_chain+0x1c/0x28 [ 3.571426] [<ffff0000084ad968>] register_framebuffer+0x1d0/0x2d8 [ 3.571431] [<ffff000008587640>] drm_fb_helper_initial_config+0x288/0x400 [ 3.571434] [<ffff00000866e670>] nouveau_fbcon_init+0xf0/0x130 [ 3.571437] [<ffff00000865dad8>] nouveau_drm_load+0x278/0x8b0 [ 3.571441] [<ffff000008590bcc>] drm_dev_register+0xbc/0xe0 [ 3.571444] [<ffff000008592038>] drm_get_pci_dev+0xa0/0x180 [ 3.571449] [<ffff00000865d2bc>] nouveau_drm_probe+0x17c/0x1d8 [ 3.571452] [<ffff000008486c48>] pci_device_probe+0xa0/0x118 [ 3.571457] [<ffff000008691604>] driver_probe_device+0x1fc/0x2a8 [ 3.571461] [<ffff00000869175c>] __driver_attach+0xac/0xb0 [ 3.571464] [<ffff00000868f5f0>] bus_for_each_dev+0x60/0xa0 [ 3.571467] [<ffff000008690d98>] driver_attach+0x20/0x28 [ 3.571471] [<ffff0000086908d8>] bus_add_driver+0x110/0x230 [ 3.571474] [<ffff000008691f20>] driver_register+0x60/0xf8 [ 3.571479] [<ffff000008485a24>] __pci_register_driver+0x3c/0x48 [ 3.571483] [<ffff00000859245c>] drm_pci_init+0xf4/0x120 [ 3.571489] [<ffff000008e4cf7c>] nouveau_drm_init+0x20c/0x220 [ 3.571493] [<ffff0000080832a8>] do_one_initcall+0x38/0x128 [ 3.571497] [<ffff000008e20d08>] kernel_init_freeable+0x1a4/0x248 [ 3.571501] [<ffff0000089fd6d0>] kernel_init+0x10/0x100 [ 3.571504] [<ffff000008082e90>] ret_from_fork+0x10/0x40 [ 3.571508] Code: a88120c7 a8c12027 a88120c7 a8c12027 (a88120c7) [ 3.571522] ---[ end trace f2d2aa5ed205e329 ]--- [ 3.571531] Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b [ 3.571531] [ 3.571533] SMP: stopping secondary CPUs [ 3.571539] Kernel Offset: disabled [ 3.571541] Memory Limit: none [ 157.470019] ---[ end Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b [ 157.470019]