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** Changed in: mesa
Status: Confirmed = Fix Released
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https://bugs.launchpad.net/bugs/691653
Title:
compiz crashes when using alt-tab (the radeon driver
** Changed in: mesa
Importance: Unknown = High
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Title:
compiz crashes when using alt-tab (the radeon driver kills it)
** Changed in: mesa
Status: Unknown = Confirmed
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Title:
compiz crashes when using alt-tab (the radeon driver kills it)
** Branch linked: lp:ubuntu/mesa
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Title:
compiz crashes when using alt-tab (the radeon driver kills it)
This bug was fixed in the package mesa - 7.9+repack-1ubuntu4
---
mesa (7.9+repack-1ubuntu4) natty; urgency=low
* debian/patches/winsys_buffer_nullptr.patch: Null pointer check for
winsys buffer.
(LP: #691653)
-- Bryce Harrington br...@ubuntu.com Thu, 06 Jan 2011 14:44:43
I spoke with David in person yesterday and he indicated that after
updating to my patched version of mesa, he has no longer seen the crash
in several days. So I think we can consider that patch to be a fix for
this issue for now. I'll forward this upstream as well.
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** Changed in: xserver-xorg-video-ati (Ubuntu)
Status: Invalid = New
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Title:
compiz crashes when using alt-tab (the radeon driver
** Bug watch added: freedesktop.org Bugzilla #33036
http://bugs.freedesktop.org/show_bug.cgi?id=33036
** Also affects: mesa via
http://bugs.freedesktop.org/show_bug.cgi?id=33036
Importance: Unknown
Status: Unknown
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I've uploaded the patch to upstream:
https://bugs.freedesktop.org//show_bug.cgi?id=33036
Possibly upstream will prefer fixing this bug some other way, but I
think the null pointer check makes the most sense for now.
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** Changed in: xserver-xorg-video-ati (Ubuntu)
Status: New = Fix Released
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Title:
compiz crashes when using alt-tab (the radeon
Heya David, how's the testing coming along? If you have the laptop here
at the rally bring it by the desktop room and I can take a look at it
directly for you.
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RAOF suggests that re-running the current updates to xorg-edgers (which
has a new mesa 7.10) it should still crash but in a different way (in
the mipmap code, which will be bug #684745 / FDO #32246).
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On 01/06/2011 09:43 PM, Bryce Harrington wrote:
David, thanks for testing xorg edgers. How's testing of the patch
going?
If you need need the patch built into a package, I've stuck it in a PPA for
you:
https://launchpad.net/~bryce/+archive/bug691653
It usually takes several hours for
I've installed the new mesa packages from xorg-edgers but got a similar
crash. Unfortunately, even with the -dbg packages installed i still
wasn't able to get correct line numbers.
For reference, here is what i have installed:
dba...@thinkpad:~$ apt-cache policy libgl1-mesa-dri
And so the band aid nullptr patch sounds like a good option to me ;)
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Title:
compiz crashes when using alt-tab (the radeon driver kills it)
Not a Unity issue anyway, it's a dri driver crashing us.
** Changed in: unity
Status: New = Invalid
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Title:
compiz crashes when
Not compiz's fault either, though we're all affected.
** Changed in: compiz (Ubuntu)
Status: New = Invalid
** Tags added: driver unity
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Just adding ubuntu/xorg per the workflow defined with Bryce.
** Also affects: xorg (Ubuntu)
Importance: Undecided
Status: New
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** Package changed: xorg (Ubuntu) = xserver-xorg-video-ati (Ubuntu)
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Title:
compiz crashes when using alt-tab (the radeon driver kills it)
Actually since it's already targeted to mesa, which is an xorg
subcomponent, no need to also target xorg or -ati. It's on our radar.
** Changed in: xserver-xorg-video-ati (Ubuntu)
Status: New = Invalid
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which is
David, thanks for testing xorg edgers. How's testing of the patch
going?
If you need need the patch built into a package, I've stuck it in a PPA for you:
https://launchpad.net/~bryce/+archive/bug691653
It usually takes several hours for mesa builds to complete in the PPAs,
so check back later.
** Tags added: patch
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Title:
compiz crashes when using alt-tab (the radeon driver kills it)
___
apport information
** Tags added: apport-collected running-unity ubuntu
** Description changed:
Binary package hint: compiz
While alt-tabbing with compiz (latest version,
1:0.9.2.1+glibmainloop3-0ubuntu4), i got this crasher.
I've noticed crashers like this for a while since i
I can't get a full trace again, and i don't have the last core handy.
I'll keep trying today.
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Title:
compiz crashes when using alt-tab (the
This appears to be a more complete backtrace, found via Google:
https://bugzilla.redhat.com/attachment.cgi?id=464327
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Title:
compiz crashes
Ok, that backtrace makes it pretty plain what's gone wrong:
Code:
_buf = radeon_drm_bufmgr_create_buffer_from_handle(ws-kman,
whandle-handle);
if (stride)
*stride = whandle-stride;
if (size)
*size = _buf-base.size;
State:
#0 radeon_r300_winsys_buffer_from_handle
Well, this is a pretty simpleminded check, but it looks like it might
prevent it from crashing at least.
Still doesn't answer why the null pointer got in there to begin with.
We've got a new mesa release coming soon. I poked through the git tree
looking for an obvious fix for this issue but
Browsed through the last month's worth of changes to the 7.10 branch for
mesa and didn't spot an obvious fix for this issue, however there were
several buffer validation patches for radeon, so it wouldn't surprise me
if the bug goes away in newer mesa.
If you'd like to test it now, you could
** Changed in: mesa (Ubuntu)
Status: Incomplete = In Progress
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Title:
compiz crashes when using alt-tab (the radeon driver kills it)
** Bug watch added: Red Hat Bugzilla #660143
https://bugzilla.redhat.com/show_bug.cgi?id=660143
** Also affects: compiz (Fedora) via
https://bugzilla.redhat.com/show_bug.cgi?id=660143
Importance: Unknown
Status: Unknown
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Please run 'apport-collect 691653', so that it captures your X logs and
pci ids and so on.
Also, collect another backtrace using 'bt full' in gdb. That should
list out line numbers for the GL calls.
Offhand I wonder if this might be an r300 vs. r300g issue...
** Tags added: natty
** Also
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