Comment # 4
on bug 93652
from Wolfgang Frisch
Linux 4.5-rc7: The call trace seems to have changed since 4.5-rc4. The desktop hangs irrevocably after a few minutes of running the game "Left 4 Dead 2". The issue does not occur with an old Nvidia GPU and the nouveau drivers. [ 1080.214273] INFO: task Xorg:5799 blocked for more than 120 seconds. [ 1080.214277] Not tainted 4.5.0-rc7-desktop #1 [ 1080.214279] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1080.214282] Xorg D ffff88043ec13fc0 0 5799 5326 0x00000084 [ 1080.214286] ffff880420b1fa30 0000000000000000 ffff8800bcaa23c0 0000000000000000 [ 1080.214289] 0000000000000000 ffff880420b20000 ffff880420b1fa48 ffff88042c9d8000 [ 1080.214292] 0000000000000001 0000000000000000 ffff88042ab70040 ffff88042c9de178 [ 1080.214295] Call Trace: [ 1080.214302] [<ffffffff818a38b8>] ? schedule+0x7f/0x93 [ 1080.214306] [<ffffffff818a38b8>] ? schedule+0x7f/0x93 [ 1080.214331] [<ffffffffa004d52e>] ? amd_sched_entity_push_job+0x52/0x6b [amdgpu] [ 1080.214335] [<ffffffff810bd080>] ? wait_woken+0x66/0x66 [ 1080.214355] [<ffffffffa004d950>] ? amdgpu_sched_ib_submit_kernel_helper+0xfd/0x170 [amdgpu] [ 1080.214373] [<ffffffffa001aa00>] ? amdgpu_gem_prime_export+0x3f/0x3f [amdgpu] [ 1080.214391] [<ffffffffa001b064>] ? amdgpu_vm_bo_update_mapping+0x324/0x414 [amdgpu] [ 1080.214410] [<ffffffffa001b9fa>] ? amdgpu_vm_bo_update+0xe0/0x172 [amdgpu] [ 1080.214427] [<ffffffffa0010b53>] ? amdgpu_gem_va_update_vm+0x159/0x1a8 [amdgpu] [ 1080.214445] [<ffffffffa001be17>] ? amdgpu_vm_bo_map+0x198/0x335 [amdgpu] [ 1080.214462] [<ffffffffa0011a34>] ? amdgpu_gem_va_ioctl+0x2b7/0x343 [amdgpu] [ 1080.214478] [<ffffffffa0011a34>] ? amdgpu_gem_va_ioctl+0x2b7/0x343 [amdgpu] [ 1080.214482] [<ffffffff8148f8c3>] ? drm_ioctl+0x225/0x353 [ 1080.214484] [<ffffffff8148f8c3>] ? drm_ioctl+0x225/0x353 [ 1080.214501] [<ffffffffa001177d>] ? amdgpu_gem_metadata_ioctl+0x1c7/0x1c7 [amdgpu] [ 1080.214505] [<ffffffff81131fa2>] ? __do_fault+0x61/0xaa [ 1080.214519] [<ffffffffa0000046>] ? amdgpu_drm_ioctl+0x46/0x72 [amdgpu] [ 1080.214522] [<ffffffff8116e1db>] ? vfs_ioctl+0x16/0x23 [ 1080.214524] [<ffffffff8116e6f9>] ? do_vfs_ioctl+0x49e/0x50e [ 1080.214527] [<ffffffff810fec2c>] ? __audit_syscall_entry+0xbb/0xdf [ 1080.214530] [<ffffffff8116e7b6>] ? SyS_ioctl+0x4d/0x6f [ 1080.214533] [<ffffffff818a64d7>] ? entry_SYSCALL_64_fastpath+0x12/0x66
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