Bug 111782

Summary:	[ICL/Iris] (recoverable) GPU hangs in SynMark2 CSDof
Product:	Mesa	Reporter:	Eero Tamminen <eero.t.tamminen>
Component:	Drivers/Gallium/Iris	Assignee:	Intel 3D Bugs Mailing List <intel-3d-bugs>
Status:	RESOLVED MOVED	QA Contact:	Intel 3D Bugs Mailing List <intel-3d-bugs>
Severity:	not set
Priority:	not set
Version:	git
Hardware:	x86-64 (AMD64)
OS:	Linux (All)
See Also:	https://bugs.freedesktop.org/show_bug.cgi?id=111385
Whiteboard:
i915 platform:		i915 features:
Attachments:	ICL error state

Description Eero Tamminen 2019-09-23 13:25:00 UTC

Created attachment 145470 [details]
ICL error state

Setup:
- ICL-U
- Ubuntu 18.04
- drm-tip git kernel
- Mesa git
- Unity desktop

Test-case:
- 3x fullscreen FullHD CSDof compute SynMark test-case:
  synmark2 OglCSDof

Notes:
* Main difference from this test to other tests is that it causes a lot of register spilling while compiling on of the compute shaders
* Bug 111385 GPU hangs happen also on ICL, but CSDof hang doesn't happen on GEN9
* There are no GPU hangs with the i965 driver

Comment 1 Kenneth Graunke 2019-09-23 16:08:06 UTC

Yeah, we need to finish https://gitlab.freedesktop.org/mesa/mesa/merge_requests/1749

Comment 2 Eero Tamminen 2019-09-24 10:59:40 UTC

Should be fixed by:
----------------------------------------------------------
commit b9e93db20896a436c716107dd0d12057b3aa9f72
Author:     Kenneth Graunke <kenneth@whitecape.org>
AuthorDate: Thu Aug 22 17:32:25 2019 -0700
Commit:     Kenneth Graunke <kenneth@whitecape.org>
CommitDate: Mon Sep 23 16:59:40 2019 -0700

    intel: Increase Gen11 compute shader scratch IDs to 64.
----------------------------------------------------------

I'll verify this when I get again access to an ICL device.

From patch I see that this change is separately applied to all drivers: Iris, i965 and Anv.  

However, I didn't get hang with i965. Does it spill less than Iris in CSDof?

Comment 3 GitLab Migration User 2019-09-25 18:47:59 UTC

-- GitLab Migration Automatic Message --

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