[Bug 198883] amdgpu: carrizo: Screen stalls after starting X

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=198883

--- Comment #60 from Andrey Grodzovsky (andrey.grodzovsky at amd.com) ---
(In reply to Ricardo Ribalda from comment #59)
> Hi Andrey
> 
> Testing with llvm7 setup:
> 
> 
> R600_DEBUG=notiling,norbplus xinit
> 
> does not avoid the hang :(
> 
> [   31.200134] [drm:amdgpu_job_timedout [amdgpu]] *ERROR* ring gfx timeout,
> last signaled seq=7, last emitted seq=8
> [   31.200147] [drm] IP block:gfx_v8_0 is hung!
> [   31.200152] [drm] GPU recovery disabled.
> 
> 
> 
> GALLIUM_DDEBUG=flush xinit
> 
> Seems to have a (good) impact. Hang happened after around 20 boots.
> 
> [   13.389894] NET: Registered protocol family 39
> [   28.640142] [drm:amdgpu_job_timedout [amdgpu]] *ERROR* ring gfx timeout,
> last signaled seq=652, last emitted seq=654
> [   28.640154] [drm] IP block:gfx_v8_0 is hung!
> [   28.640160] [drm] GPU recovery disabled.
> [  246.752083] INFO: task amdgpu_cs:0:636 blocked for more than 120 seconds.
> [  246.752092]       Not tainted 4.16.0-rc4-qtec-standard #1
> [  246.752095] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables
> this message.
> [  246.752099] amdgpu_cs:0     D    0   636    543 0x00080000
> [  246.752099] amdgpu_cs:0     D    0   636    543 0x00080000
> [  246.752103] Call Trace:
> [  246.752115]  ? __schedule+0x25c/0x860
> [  246.752122]  ? dma_fence_default_wait+0x10c/0x280
> [  246.752124]  ? dma_fence_default_wait+0x1c8/0x280
> [  246.752127]  schedule+0x2f/0x90
> [  246.752130]  schedule_timeout+0x1f1/0x440
> [  246.752220]  ? amdgpu_cs_bo_validate+0x7f/0x120 [amdgpu]
> [  246.752276]  ? amdgpu_ttm_alloc_gart+0x5d/0x270 [amdgpu]
> [  246.752284]  ? dma_fence_default_wait+0x10c/0x280
> [  246.752287]  ? dma_fence_default_wait+0x1c8/0x280
> [  246.752290]  dma_fence_default_wait+0x1f4/0x280
> [  246.752294]  ? dma_fence_default_wait+0x280/0x280
> [  246.752297]  dma_fence_wait_timeout+0x2e/0x100
> [  246.752359]  amdgpu_ctx_wait_prev_fence+0x46/0x80 [amdgpu]
> [  246.752418]  amdgpu_cs_ioctl+0x1f2/0x1af0 [amdgpu]
> [  246.752478]  ? amdgpu_cs_find_mapping+0xe0/0xe0 [amdgpu]
> [  246.752504]  drm_ioctl_kernel+0x59/0xb0 [drm]
> [  246.752524]  drm_ioctl+0x29f/0x340 [drm]
> [  246.752581]  ? amdgpu_cs_find_mapping+0xe0/0xe0 [amdgpu]
> [  246.752630]  amdgpu_drm_ioctl+0x49/0x80 [amdgpu]
> [  246.752635]  do_vfs_ioctl+0x8e/0x680
> [  246.752641]  ? SyS_futex+0x11d/0x150
> [  246.752644]  SyS_ioctl+0x74/0x80
> [  246.752647]  ? get_vtime_delta+0xe/0x40
> [  246.752650]  do_syscall_64+0x7b/0x1d0
> [  246.752654]  entry_SYSCALL_64_after_hwframe+0x3d/0xa2
> [  246.752658] RIP: 0033:0x3e292e57e7
> [  246.752660] RSP: 002b:00007f17a2924b88 EFLAGS: 00000246 ORIG_RAX:
> 0000000000000010
> [  246.752663] RAX: ffffffffffffffda RBX: 00007f17a2924c78 RCX:
> 0000003e292e57e7
> [  246.752664] RDX: 00007f17a2924bf0 RSI: 00000000c0186444 RDI:
> 000000000000000d
> [  246.752666] RBP: 00007f17a2924bf0 R08: 00007f17a2924ca0 R09:
> 00007f17a2924c78
> [  246.752667] R10: 00007f17a2924ca0 R11: 0000000000000246 R12:
> 00000000c0186444
> [  246.752668] R13: 000000000000000d R14: 0000000000d2c588 R15:
> 0000000000000002
> 
> 
> kmscube git HEAD have not stalled after 50 attempts without any flag in
> GALLIUM_DDEBUG or R600_DEBUG.
> 
> It might not be relevant, but my platform can only boot with BIOS (it is
> based on coreboot). When you tried this bug did you tried with UEFI or BIOS?
> 
> Thanks

I think my BIOS is set to UEFI but it can't have any relation to this issue.

Andrey

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