[Bug 85421] radeon stalled, GPU lockup, reset and failed on resume; crashed by firefox.

[bugzilla-daemon@bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=85421

--- Comment #31 from Hin-Tak Leung <htl10@users.sourceforge.net> ---
Apparently according to the log, I had a GPU crash on 1st March on suspend,
which I did not notice.

With kernel 3.18.9-200.fc21.x86_64, besides GPU lock up, the kernel also
oops'ed. May it is a good thing? :

Mar 17 00:35:43 localhost kernel: [12172.039701] WARNING: CPU: 1 PID: 1938 at
drivers/gpu/drm/radeon/radeon_object.c:84 radeon_ttm_bo_destroy+
0xf1/0x100 [radeon]()
...

Mar 17 00:35:43 localhost kernel: [12172.039816] CPU: 1 PID: 1938 Comm:
gnome-shell Not tainted 3.18.9-200.fc21.x86_64 #1
Mar 17 00:35:43 localhost kernel: [12172.039820] Hardware name: TOSHIBA
SATELLITE C50D-B/ZBWAE, BIOS 1.30 06/06/2014
Mar 17 00:35:43 localhost kernel: [12172.039824]  0000000000000000
00000000a817c8ac ffff880233173b68 ffffffff8175b71c
Mar 17 00:35:43 localhost kernel: [12172.039830]  0000000000000000
0000000000000000 ffff880233173ba8 ffffffff81098eb1
Mar 17 00:35:43 localhost kernel: [12172.039835]  0000000000000002
ffff880170180058 ffff880170180000 ffffffffffffffff
Mar 17 00:35:43 localhost kernel: [12172.039841] Call Trace:
Mar 17 00:35:43 localhost kernel: [12172.039853]  [<ffffffff8175b71c>]
dump_stack+0x46/0x58
Mar 17 00:35:43 localhost kernel: [12172.039862]  [<ffffffff81098eb1>]
warn_slowpath_common+0x81/0xa0
Mar 17 00:35:43 localhost kernel: [12172.039868]  [<ffffffff81098fca>]
warn_slowpath_null+0x1a/0x20
Mar 17 00:35:43 localhost kernel: [12172.039901]  [<ffffffffa011c091>]
radeon_ttm_bo_destroy+0xf1/0x100 [radeon]
Mar 17 00:35:43 localhost kernel: [12172.039919]  [<ffffffffa00a41b6>]
ttm_bo_release_list+0xa6/0x1a0 [ttm]
Mar 17 00:35:43 localhost kernel: [12172.039933]  [<ffffffffa00a4575>]
ttm_bo_release+0x105/0x250 [ttm]
Mar 17 00:35:43 localhost kernel: [12172.039948]  [<ffffffffa00a46e9>]
ttm_bo_unref+0x29/0x30 [ttm]
Mar 17 00:35:43 localhost kernel: [12172.039980]  [<ffffffffa011c559>]
radeon_bo_unref+0x39/0x70 [radeon]
Mar 17 00:35:43 localhost kernel: [12172.040017]  [<ffffffffa013182b>]
radeon_gem_object_free+0x4b/0x70 [radeon]
Mar 17 00:35:43 localhost kernel: [12172.040112]  [<ffffffffa00443e7>]
drm_gem_object_free+0x27/0x40 [drm]
Mar 17 00:35:43 localhost kernel: [12172.040151]  [<ffffffffa0044970>]
drm_gem_object_handle_unreference_unlocked+0x120/0x130 [drm]
Mar 17 00:35:43 localhost kernel: [12172.040182]  [<ffffffffa0044a26>]
drm_gem_handle_delete+0xa6/0x100 [drm]
Mar 17 00:35:43 localhost kernel: [12172.040204]  [<ffffffffa00450c5>]
drm_gem_close_ioctl+0x25/0x30 [drm]
Mar 17 00:35:43 localhost kernel: [12172.040224]  [<ffffffffa0045a9f>]
drm_ioctl+0x1df/0x680 [drm]
Mar 17 00:35:43 localhost kernel: [12172.040236]  [<ffffffff811cc452>] ?
unmap_region+0xe2/0x130
Mar 17 00:35:43 localhost kernel: [12172.040264]  [<ffffffffa00fb04c>]
radeon_drm_ioctl+0x4c/0x80 [radeon]
Mar 17 00:35:43 localhost kernel: [12172.040283]  [<ffffffff812282b0>]
do_vfs_ioctl+0x2d0/0x4b0
Mar 17 00:35:43 localhost kernel: [12172.040289]  [<ffffffff81228511>]
SyS_ioctl+0x81/0xa0
Mar 17 00:35:43 localhost kernel: [12172.040297]  [<ffffffff81139b86>] ?
__audit_syscall_exit+0x1f6/0x2a0
Mar 17 00:35:43 localhost kernel: [12172.040310]  [<ffffffff81762129>]
system_call_fastpath+0x12/0x17
Mar 17 00:35:43 localhost kernel: [12172.040314] ---[ end trace
844a94b2a6ea5f19 ]---

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