[Bug 85647] New: Random radeonsi crashes with mesa 10.3.x

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=85647

            Bug ID: 85647
           Summary: Random radeonsi crashes with mesa 10.3.x
           Product: DRI
           Version: XOrg CVS
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/Radeon
          Assignee: dri-devel at lists.freedesktop.org
          Reporter: hannu.tmp at pp.inet.fi

This is propably duplicate of some of the 79980 reports, that is why I put the
report to DRI and not mesa where it might belong.

Xorg has randomly timed (hours or days between) crashes with mesa 10.3.x. First
it stops responding for some seconds, then screen goes black. Sometimes it
recovers for a moment after the black screen but you had better reboot the
computer while you can, ít will crash again soon after the first crash.

My son is playing steam games with that computer and he complains loudly when
the crash happens. It has crashed when he is watching videos from youtube.

I think steam games are i386. Firefox and flash are amd64. So I have both i386
and amd64 libraries installed (debian multiarch). System is otherwise amd64.

I usually try the latest versions from debian archive and after couple of
crashes (and loud complaints) I downgrade mesa to 10.2.8-1 which does not
crash.

After the crash Xorg.0.log has
"(EE) [mi] EQ overflowing.  Additional events will be discarded until existing
events are processed." and so on at the end of the log.

10.3.2 crashed next day after installing (after several hours of gaming) and
since I do not know how to compile for multiarched debian I think bisecting is
not possible.

debian sid amd64 multiarch
mesa 10.3.2-1
libdrm-radeon1 2.4.58-2
xserver-xorg-video-radeon 7.5.0-1

uname -a:
Linux 3.18.0-rc2-hmaa #1 SMP PREEMPT Mon Oct 27 06:23:54 EET 2014 x86_64
GNU/Linux

lspci:
01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI]
Pitcairn XT [Radeon HD 7870 GHz Edition]

-------------------
I have another computer which I use myself, it has Northern Islands card
(Barts):
lspci:
01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Barts
XT [Radeon HD 6870]
Software is the is the same in both computers.

The computer with Northern Islands has not crashed with mesa 10.3.x, so it
seems to me that this bug needs the combination of mesa 10.3.x and Southern
Islands to occur. I don't do the heavy gaming and long youtube sessions with
the Northern Islands card but it is in use about 10 hours daily.

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