[Beignet] DISCUSSION: VM fault by piglit

[zhoucm1]

Hi all,
I'd like to talk this issue all of you to see any comments, from the 
erroe message this VM fault is resulted by no memory when I use 1GB 
card, disappeared when using 4GB card.:

[  418.270304] ttm_bo_mem_space3********ret:-16, has_erestartsys:0 
//here will allocate about 570MB space
[  418.270304] ttm_bo_move_buffer1********ret:-12 //-ENOMEM
[  418.270306] *******amdgpu_cs_bo_list_validate: r:-12, domain:6, 
allow:6 // if here force to return -ERESTARTSYS, the issue also can 
disappear.
[  418.270347] [drm:amdgpu_cs_ioctl [amdgpu]] *ERROR* Not enough memory 
for command submission!

[  402.571652] fbo-nostencil-t[20431]: segfault at 108 ip 
00007fc89759bca8 sp 00007ffe03065950 error 4 in 
amdgpu_dri.so[7fc895466000+24fc000]
[  419.801956] [drm:amdgpu_cs_ioctl [amdgpu]] *ERROR* Not enough memory 
for command submission!
[  419.843570] amdgpu 0000:03:00.0: GPU fault detected: 147 0x00093002
[  419.843714] amdgpu 0000:03:00.0: VM_CONTEXT1_PROTECTION_FAULT_ADDR   
0x00000800
[  419.843874] amdgpu 0000:03:00.0: VM_CONTEXT1_PROTECTION_FAULT_STATUS 
0x09030002
[  419.844037] VM fault (0x02, vmid 4) at page 2048, write from 'CPG' 
(0x43504700) (48)
[  419.849959] amdgpu 0000:03:00.0: GPU fault detected: 147 0x00033002
[  419.850097] amdgpu 0000:03:00.0: VM_CONTEXT1_PROTECTION_FAULT_ADDR   
0x00000800
[  419.850259] amdgpu 0000:03:00.0: VM_CONTEXT1_PROTECTION_FAULT_STATUS 
0x03030002
[  419.850420] VM fault (0x02, vmid 1) at page 2048, write from 'CPG' 
(0x43504700) (48)
[  419.859227] [drm:amdgpu_cs_ioctl [amdgpu]] *ERROR* Not enough memory 
for command submission!
[  419.872592] amdgpu 0000:03:00.0: GPU fault detected: 147 0x0b0e7702
[  419.872732] amdgpu 0000:03:00.0: VM_CONTEXT1_PROTECTION_FAULT_ADDR   
0x001002D8
[  419.872892] amdgpu 0000:03:00.0: VM_CONTEXT1_PROTECTION_FAULT_STATUS 
0x0E077002
[  419.873053] VM fault (0x02, vmid 7) at page 1049304, read from 'SDM0' 
(0x53444d30) (119)
[  419.873060] amdgpu 0000:03:00.0: GPU fault detected: 147 0x09087602
[  419.873197] amdgpu 0000:03:00.0: VM_CONTEXT1_PROTECTION_FAULT_ADDR   
0x001002C8
[  419.873357] amdgpu 0000:03:00.0: VM_CONTEXT1_PROTECTION_FAULT_STATUS 
0x08076002
[  419.873517] VM fault (0x02, vmid 4) at page 1049288, read from 'CPF' 
(0x43504600) (118)
[  434.876357] [TTM] Failed to expire sync object before buffer eviction
[  449.869686] [TTM] Failed to expire sync object before buffer eviction
[  464.862836] [TTM] Failed to expire sync object before buffer eviction
[  464.863024] [drm:amdgpu_cs_ioctl [amdgpu]] *ERROR* Not enough memory 
for command submission!
[  479.876053] [TTM] Failed to expire sync object before buffer eviction
[  494.869284] [TTM] Failed to expire sync object before buffer eviction


any comments?

Regards,
David Zhou
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