Summary: | [gen4] GPU hang in Chrome | ||
---|---|---|---|
Product: | Mesa | Reporter: | Christian Lohmaier <lohmaier> |
Component: | Drivers/DRI/i965 | Assignee: | Ian Romanick <idr> |
Status: | RESOLVED DUPLICATE | QA Contact: | Intel 3D Bugs Mailing List <intel-3d-bugs> |
Severity: | normal | ||
Priority: | medium | CC: | intel-gfx-bugs |
Version: | unspecified | ||
Hardware: | x86-64 (AMD64) | ||
OS: | Linux (All) | ||
Whiteboard: | |||
i915 platform: | i915 features: | ||
Attachments: |
gpu crash dump
journalctl log from crash with traces and suspend/resume cycle |
Created attachment 110409 [details]
journalctl log from crash with traces and suspend/resume cycle
the suggestion from bug#80568#c62 (setting always_flush_cache=true) seems to workaround my problem as well, so very likely duplicate. I suspect this may be another duplicate of the bug 80568, fixed (worked-around) by this commit: commit c4fd0c9052dd391d6f2e9bb8e6da209dfc7ef35b Author: Kenneth Graunke <kenneth@whitecape.org> Date: Sat Jan 17 23:21:15 2015 -0800 i965: Work around mysterious Gen4 GPU hangs with minimal state changes. Gen4 hardware appears to GPU hang frequently when using Chromium, and also when running 'glmark2 -b ideas'. Most of the error states contain 3DPRIMITIVE commands in quick succession, with very few state packets between them - usually VERTEX_BUFFERS/ELEMENTS and CONSTANT_BUFFER. I trimmed an apitrace of the glmark2 hang down to two draw calls with a glUniformMatrix4fv call between the two. Either draw by itself works fine, but together, they hang the GPU. Removing the glUniform call makes the hangs disappear. In the hardware state, this translates to removing the CONSTANT_BUFFER packet between the two 3DPRIMITIVE packets. Flushing before emitting CONSTANT_BUFFER packets also appears to make the hangs disappear. I observed a slowdown in glxgears by doing it all the time, so I've chosen to only do it when BRW_NEW_BATCH and BRW_NEW_PSP are unset (i.e. we haven't done a CS_URB_STATE change or already flushed the whole pipeline). I'd much rather understand the problem, but at this point, I don't see how we'd ever be able to track it down further. We have no real tools, and the hardware people moved on years ago. I've analyzed 20+ error states and read every scrap of documentation I could find. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=80568 Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=85367 Signed-off-by: Kenneth Graunke <kenneth@whitecape.org> Acked-by: Matt Turner <mattst88@gmail.com> Cc: "10.4 10.3" <mesa-stable@lists.freedesktop.org> It's in git, and backports are in Mesa 10.4.x for x > 3. Please try upgrading to >10.4.3. If it's resolved by such an upgrade, please mark as a duplicate of bug 80568. |
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Created attachment 110408 [details] gpu crash dump easiest way to trigger the problem is by watching youtube videos with chromium browser in gnome3 - but also occurs when loading openstreetmap widget in the browser. This is with a Fujitsu Esprimo Mobile U9200 notebook, Intel 965GM integrated graphics, using Mageia 4 Symptoms: * Screen goes black, switching to different virtual consoles or attempt to switch brightness doesn't bring it back on. * suspend to RAM and waking it up brings back the display although gnome-session fails to resume, shows the "cannot recover, log-out" screen. You can kill the gnome-session-failed process from a VT and launch metacity or some other window manager to clean up/save your documents though.