Bug 104159 - llvm 6.0svn: firefox GPU fault/hang with r319975
Summary: llvm 6.0svn: firefox GPU fault/hang with r319975
Status: RESOLVED FIXED
Alias: None
Product: Mesa
Classification: Unclassified
Component: Drivers/Gallium/radeonsi (show other bugs)
Version: git
Hardware: Other All
: medium normal
Assignee: Default DRI bug account
QA Contact: Default DRI bug account
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2017-12-07 09:06 UTC by Christoph Haag
Modified: 2017-12-14 08:18 UTC (History)
2 users (show)

See Also:
i915 platform:
i915 features:

Attachments
dmesg (99.33 KB, text/plain)
2017-12-07 09:06 UTC, Christoph Haag 		Details
dmesg (394.31 KB, text/plain)
2017-12-14 08:18 UTC, Christoph Haag 		Details
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Description Christoph Haag 2017-12-07 09:06:47 UTC 
Created attachment 136030 [details]
dmesg

RX 480, mesa master.
I only tried 4.15-rc2 with DC and drm-next-4.16 with DC and it happens on both.

With llvm 319975 (and 320007) I get a GPU hang every time I start firefox nightly (in X).
With llvm 319882 it works fine.
Comment 1 Lorenzo Bona 2017-12-11 10:31:04 UTC 
I can confirm this bug on svn320332 too.

I'm using vanilla kernel.
Comment 2 Christoph Haag 2017-12-11 10:34:58 UTC 
Vega broke around the same time. https://bugs.freedesktop.org/show_bug.cgi?id=104192
"llvm-svn revision 320250 gives me the freezes meanwhile, 317901 doesnt."

It could be a different bug though.
Comment 3 Michel Dänzer 2017-12-11 10:47:29 UTC 
FWIW, I bisected some piglit regressions to LLVM SVN r319894.
Comment 4 Tom Englund 2017-12-12 18:17:21 UTC 
sorry had wrong bug, open and changed it to resolved.
Comment 5 Christoph Haag 2017-12-13 08:57:59 UTC 
But it is fixed with new LLVM. Most likely it was the same issue.
Comment 6 Christoph Haag 2017-12-14 08:18:00 UTC 
Created attachment 136167 [details]
dmesg

Oops, just got a hang again with newer llvm.

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