Bug 98541

Summary:	[bisected] gpu hang
Product:	Mesa	Reporter:	Alexandr Zelinsky <mexahotabop>
Component:	Drivers/Gallium/radeonsi	Assignee:	Default DRI bug account <dri-devel>
Status:	RESOLVED FIXED	QA Contact:	Default DRI bug account <dri-devel>
Severity:	normal
Priority:	medium	CC:	nhaehnle
Version:	git
Hardware:	Other
OS:	All
Whiteboard:
i915 platform:		i915 features:
Attachments:	Xorg.0.log R600_DEBUG=vs,tcs,tes,gs,ps,cs with hang R600_DEBUG=vs,tcs,tes,gs,ps,cs without hang

Description Alexandr Zelinsky 2016-11-02 08:39:21 UTC

bisected in 1b6fb88ab2031a98ddf03a81f644b22a8f7e9428
no errors in logs 

hangs very random fasted way to reproduce that what i find its fast switch between ships in star conflict

Comment 1 Michel Dänzer 2016-11-02 09:04:00 UTC

Nicolai, any ideas? That's

commit 1b6fb88ab2031a98ddf03a81f644b22a8f7e9428
Author: Nicolai Hähnle <nicolai.haehnle@amd.com>
Date:   Wed Sep 28 21:27:16 2016 +0200

    gallium/radeon: unify the creation of basic blocks

Comment 2 Alexandr Zelinsky 2016-11-02 09:13:30 UTC

Created attachment 127683 [details]
Xorg.0.log

r7 360
llvm git 188a521a18bf77747e2fa21a8a541e7882b0aea0
kernel 4.7.0 and 4.8.2 driver amdgpu
dual screen configuration

Comment 3 Nicolai Hähnle 2016-11-02 11:17:12 UTC

Can you provide an apitrace that reproduces the hang?

Comment 4 Alexandr Zelinsky 2016-11-03 02:29:14 UTC

for some reason i cannot reproduce hang with apitrace

Comment 5 Nicolai Hähnle 2016-11-03 08:52:34 UTC

That's odd. As an alternative, could you please provide a log with R600_DEBUG=vs,tcs,tes,gs,ps,cs both before (without hang) and after (with hang) the problematic commit. Also run with GALLIUM_DDEBUG=pipelined; after the hang, you should get a message about the hang being detected as well as a file in ~/ddebug_dumps/ that ought to be useful. Thanks!

Comment 6 Alexandr Zelinsky 2016-11-16 13:32:16 UTC

Created attachment 128004 [details]
R600_DEBUG=vs,tcs,tes,gs,ps,cs with hang

Comment 7 Alexandr Zelinsky 2016-11-16 13:39:37 UTC

Created attachment 128006 [details]
R600_DEBUG=vs,tcs,tes,gs,ps,cs without hang

used versions 
with hang 6403a9e0740409f8e410b115d48db3a1324aae2c
without hang d377f4c1ca0005b5ed7af95475da3225da71f373

~/ddebug_dumps/ not exist

sorry for the long delay

Comment 8 Nicolai Hähnle 2016-11-16 14:46:43 UTC

Thanks. Are you sure you ran with GALLIUM_DDEBUG=pipelined? That would make finding the bug much more likely...

Comment 9 Alexandr Zelinsky 2016-11-16 14:58:11 UTC

R600_DEBUG=vs,tcs,tes,gs,ps,cs GALLIUM_DDEBUG=pipelined '/media/sdb/steam/SteamApps/common/star conflict/StarConflict'  &> /media/sdc/sc.log

Comment 10 Alexandr Zelinsky 2016-12-06 07:30:21 UTC

not 100% sure but seems like fixed in mainline

Comment 11 Alexandr Zelinsky 2016-12-08 07:24:52 UTC

yep fixed

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