<div dir="auto">Well, this patch shouldn't change behavior. Are you sure it's not some random thing? I know, for example, that SI isn't very stable with piglit on radeon either.<div dir="auto"> </div><div dir="auto">Marek</div></div><div class="gmail_extra"> <div class="gmail_quote">On Sep 1, 2017 12:28 PM, "Michel Dänzer" <<a href="mailto:michel@daenzer.net">michel@daenzer.net</a>> wrote: <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">On 01/09/17 07:23 PM, Nicolai Hähnle wrote: > On 01.09.2017 11:58, Michel Dänzer wrote: >> On 29/08/17 11:47 PM, Christian König wrote: >>> From: Marek Olšák <<a href="mailto:marek.olsak@amd.com">marek.olsak@amd.com</a>> >>> >>> For lower overhead in the CS ioctl. >>> Winsys allocators are not used with interprocess-sharable resources. >>> >>> v2: It shouldn't crash anymore, but the kernel will reject the new flag. >>> v3 (christian): Rename the flag, avoid sending those buffers in the >>> BO list. >>> v4 (christian): Remove setting the kernel flag for now >> >> This change seems to have caused a GPU hang when running piglit on my >> Kaveri with the radeon kernel driver. Haven't been able to isolate it to >> a specific test, seems to only happen when running multiple tests >> concurrently. There's a GPUVM fault before the hang, I suspect it's >> related: >> >> radeon 0000:00:01.0: GPU fault detected: 146 0x0ae6760c >> radeon 0000:00:01.0: VM_CONTEXT1_PROTECTION_FAULT_ADDR 0x000001D7 >> radeon 0000:00:01.0: VM_CONTEXT1_PROTECTION_FAULT_STATUS 0x0607600C >> VM fault (0x0c, vmid 3) at page 471, read from 'CPF' (0x43504600) (118) >> >> >> Any ideas? > > Only that "read from CPF" means it can only be one of: > > - command buffers > - indirect draw data > - predication data (conditional render) > > (I hope I didn't miss anything) > > Hmm, actually, I think CI has unavoidable VM faults related to > ARB_sparse_buffers, so this may be benign. You could try to exclude the > ARB_sparse_buffers tests. GL_ARB_sparse_buffer isn't supported with the radeon kernel driver AFAICT. -- Earthling Michel Dänzer | <a href="http://www.amd.com" rel="noreferrer" target="_blank">http://www.amd.com</a> Libre software enthusiast | Mesa and X developer </blockquote></div></div>