https://bugs.freedesktop.org/show_bug.cgi?id=44130
Bug #: 44130 Summary: Radeon pm segfault Classification: Unclassified Product: DRI Version: XOrg CVS Platform: All OS/Version: Linux (All) Status: NEW Severity: blocker Priority: medium Component: DRM/Radeon AssignedTo: dri-devel@lists.freedesktop.org ReportedBy: serveralex@gmail.com
Created attachment 54798 --> https://bugs.freedesktop.org/attachment.cgi?id=54798 Patch for issue
Radeon driver with kms enabled may crash when the card does not have any power states registered. Card is onboard X1250. Patch is attached.
Dec 24 23:11:02 serveralex-mint kernel: [ 1.137014] RIP: 0010:[<ffffffffa00a5cf8>] [<ffffffffa00a5cf8>] radeon_atombios_get_power_modes+0x298/0x310 [radeon] Dec 24 23:11:02 serveralex-mint kernel: [ 1.137014] RSP: 0018:ffff880137eedb78 EFLAGS: 00010283 Dec 24 23:11:02 serveralex-mint kernel: [ 1.137014] RAX: 0000000000000000 RBX: ffff880138576000 RCX: fffffffffffffff0 Dec 24 23:11:02 serveralex-mint kernel: [ 1.137014] RDX: ffff8801369f4c00 RSI: 0000000000000082 RDI: 0000000000000202 Dec 24 23:11:02 serveralex-mint kernel: [ 1.137014] RBP: ffff880137eedba8 R08: 0000000000000000 R09: 0000000000000000 Dec 24 23:11:02 serveralex-mint kernel: [ 1.137014] R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000000 Dec 24 23:11:02 serveralex-mint kernel: [ 1.137014] R13: 0000000001c20013 R14: 0000000000000000 R15: ffff880137118800 Dec 24 23:11:02 serveralex-mint kernel: [ 1.137014] FS: 00007f617105e720(0000) GS:ffff88013fd00000(0000) knlGS:0000000000000000 Dec 24 23:11:02 serveralex-mint kernel: [ 1.137014] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b Dec 24 23:11:02 serveralex-mint kernel: [ 1.137014] CR2: 0000000000000020 CR3: 0000000137f56000 CR4: 00000000000006e0 Dec 24 23:11:02 serveralex-mint kernel: [ 1.137014] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 Dec 24 23:11:02 serveralex-mint kernel: [ 1.137014] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Dec 24 23:11:02 serveralex-mint kernel: [ 1.137014] Process modprobe (pid: 95, threadinfo ffff880137eec000, task ffff880137f3c500) Dec 24 23:11:02 serveralex-mint kernel: [ 1.137014] Stack: Dec 24 23:11:02 serveralex-mint kernel: [ 1.137014] ffff8801371189b0 0201adf838576000 ffff880137118c20 ffff880138576000 Dec 24 23:11:02 serveralex-mint kernel: [ 1.137014] 0000000000000002 0000000001c20013 ffff880137eedbc8 ffffffffa00f2335 Dec 24 23:11:02 serveralex-mint kernel: [ 1.137014] ffff880138576000 0000000000000002 ffff880137eedbe8 ffffffffa00c14b5 Dec 24 23:11:02 serveralex-mint kernel: [ 1.137014] Call Trace: Dec 24 23:11:02 serveralex-mint kernel: [ 1.137014] [<ffffffffa00f2335>] radeon_pm_init+0x115/0x2a0 [radeon] Dec 24 23:11:02 serveralex-mint kernel: [ 1.137014] [<ffffffffa00c14b5>] radeon_modeset_init+0x135/0x170 [radeon] Dec 24 23:11:02 serveralex-mint kernel: [ 1.137014] [<ffffffffa00a1ea0>] radeon_driver_load_kms+0x120/0x160 [radeon] Dec 24 23:11:02 serveralex-mint kernel: [ 1.137014] [<ffffffffa0028e10>] drm_get_pci_dev+0x190/0x2f0 [drm] Dec 24 23:11:02 serveralex-mint kernel: [ 1.137014] [<ffffffffa0105c7f>] radeon_pci_probe+0xae/0x42f [radeon] Dec 24 23:11:02 serveralex-mint kernel: [ 1.137014] [<ffffffff812c205f>] local_pci_probe+0x5f/0xd0 Dec 24 23:11:02 serveralex-mint kernel: [ 1.137014] [<ffffffff812c32c8>] pci_device_probe+0x88/0xb0 Dec 24 23:11:02 serveralex-mint kernel: [ 1.137014] [<ffffffff8134152a>] ? driver_sysfs_add+0x7a/0xb0 Dec 24 23:11:02 serveralex-mint kernel: [ 1.137014] [<ffffffff81341658>] really_probe+0x68/0x190 Dec 24 23:11:02 serveralex-mint kernel: [ 1.137014] [<ffffffff813417c5>] driver_probe_device+0x45/0x70 Dec 24 23:11:02 serveralex-mint kernel: [ 1.137014] [<ffffffff8134188b>] __driver_attach+0x9b/0xa0 Dec 24 23:11:02 serveralex-mint kernel: [ 1.137014] [<ffffffff813417f0>] ? driver_probe_device+0x70/0x70 Dec 24 23:11:02 serveralex-mint kernel: [ 1.137014] [<ffffffff81340cf8>] bus_for_each_dev+0x68/0x90 Dec 24 23:11:02 serveralex-mint kernel: [ 1.137014] [<ffffffff813414ae>] driver_attach+0x1e/0x20 Dec 24 23:11:02 serveralex-mint kernel: [ 1.137014] [<ffffffff81340580>] bus_add_driver+0x1a0/0x260 Dec 24 23:11:02 serveralex-mint kernel: [ 1.137014] [<ffffffff81341f30>] driver_register+0x80/0x150 Dec 24 23:11:02 serveralex-mint kernel: [ 1.137014] [<ffffffff812c3575>] __pci_register_driver+0x55/0xd0 Dec 24 23:11:02 serveralex-mint kernel: [ 1.137014] [<ffffffff814d758b>] ? printk+0x68/0x6d Dec 24 23:11:02 serveralex-mint kernel: [ 1.137014] [<ffffffffa0029081>] drm_pci_init+0x111/0x120 [drm] Dec 24 23:11:02 serveralex-mint kernel: [ 1.137014] [<ffffffffa014d000>] ? 0xffffffffa014cfff Dec 24 23:11:02 serveralex-mint kernel: [ 1.137014] [<ffffffffa014d0e7>] radeon_init+0xe7/0x1000 [radeon] Dec 24 23:11:02 serveralex-mint kernel: [ 1.137014] [<ffffffff810001d3>] do_one_initcall+0x43/0x180 Dec 24 23:11:02 serveralex-mint kernel: [ 1.137014] [<ffffffff8108c8ec>] sys_init_module+0xcc/0x220 Dec 24 23:11:02 serveralex-mint kernel: [ 1.137014] [<ffffffff814e1d82>] system_call_fastpath+0x16/0x1b Dec 24 23:11:02 serveralex-mint kernel: [ 1.137014] Code: 00 44 89 a3 60 11 00 00 c7 83 68 11 00 00 00 00 00 00 48 89 c1 89 83 64 11 00 00 48 c1 e0 06 48 c1 e1 04 48 29 c8 48 8b 44 10 08 <0f> b7 40 20 66 89 83 80 11 00 00 48 83 c4 18 5b 41 5c 41 5d c9 Dec 24 23:11:02 serveralex-mint kernel: [ 1.137014] RIP [<ffffffffa00a5cf8>] radeon_atombios_get_power_modes+0x298/0x310 [radeon] Dec 24 23:11:02 serveralex-mint kernel: [ 1.137014] RSP <ffff880137eedb78> Dec 24 23:11:02 serveralex-mint kernel: [ 1.137014] CR2: 0000000000000020 Dec 24 23:11:02 serveralex-mint kernel: [ 1.143210] ---[ end trace c6e617fdb31200a0 ]---