Alt-tab causes compiz assert failure: compiz: main/mipmap.c:43: bytes_per_pixel: Assertion `b >= 0' failed.

[Benedikt Pirker]

Binary package hint: compiz

there is a strange dashed line in the upper panel

ProblemType: Crash
DistroRelease: Ubuntu 11.04
Package: compiz-core 1:0.9.2.1+glibmainloop2-0ubuntu4
ProcVersionSignature: Ubuntu 2.6.37-7.19-generic 2.6.37-rc3
Uname: Linux 2.6.37-7-generic i686
NonfreeKernelModules: fglrx
Architecture: i386
AssertionMessage: compiz: main/mipmap.c:43: bytes_per_pixel: Assertion `b >= 0' failed.
CompizPlugins: No value set for `/apps/compiz/general/allscreens/options/active_plugins'
Date: Fri Dec 3 14:15:25 2010
ExecutablePath: /usr/bin/compiz
LiveMediaBuild: Ubuntu 11.04 "Natty Narwhal" - Alpha i386 (20101202)
MachineType: Hewlett-Packard HP Pavilion dv7 Notebook PC
PciDisplay: 01:00.0 VGA compatible controller [0300]: ATI Technologies Inc M96 [Mobility Radeon HD 4650] [1002:9480] (prog-if 00 [VGA controller])
ProcCmdline: /usr/bin/compiz
ProcEnviron:
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: initrd=/casper/initrd.lz file=/cdrom/preseed/hostname.seed boot=casper quiet splash -- BOOT_IMAGE=/casper/vmlinuz
RelatedPackageVersions:
 xserver-xorg 1:7.5+6ubuntu3b1
 libgl1-mesa-glx 7.9+repack-1ubuntu2
 libdrm2 2.4.22-2ubuntu1
 xserver-xorg-video-intel 2:2.13.901-2ubuntu1
 xserver-xorg-video-ati 1:6.13.2-1ubuntu2
Signal: 6
SourcePackage: compiz
StacktraceTop:
 __kernel_vsyscall ()
 raise () from /lib/libc.so.6
 abort () from /lib/libc.so.6
 __assert_fail () from /lib/libc.so.6
 ?? () from /usr/lib/dri/libdricore.so
Title: compiz assert failure: compiz: main/mipmap.c:43: bytes_per_pixel: Assertion `b >= 0' failed.
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare
dmi.bios.date: 02/24/2009
dmi.bios.vendor: Hewlett-Packard
dmi.bios.version: F.03
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: 3064
dmi.board.vendor: Quanta
dmi.board.version: 19.0B
dmi.chassis.type: 10
dmi.chassis.vendor: Quanta
dmi.chassis.version: N/A
dmi.modalias: dmi:bvnHewlett-Packard:bvrF.03:bd02/24/2009:svnHewlett-Packard:pnHPPaviliondv7NotebookPC:pvrRev1:rvnQuanta:rn3064:rvr19.0B:cvnQuanta:ct10:cvrN/A:
dmi.product.name: HP Pavilion dv7 Notebook PC
dmi.product.version: Rev 1
dmi.sys.vendor: Hewlett-Packard
glxinfo: Error: [Errno 2] No such file or directory
system: distro = Ubuntu, architecture = i686, kernel = 2.6.37-7-generic

[Apport retracing service (apport)]

StacktraceTop:
 __kernel_vsyscall ()
 *__GI___open_catalog (
 __mpn_impn_sqr_n (prodp=0x0, up=0x69feb6, size=170338272,
 _nl_load_locale_from_archive (
 bytes_per_pixel (datatype=0, comps=1) at main/mipmap.c:49

[Martin Pool (mbp)]

compiz has repeatedly crashed for me with this message in natty. I didn't see this problem in maverick.

[Paul Sladen (sladen)]

Martin: I was getting about four crashes per day on Alt-Tab until I upgraded the RAM from 1GB to 3GB, I suspect it's partly starvation/paging related.

[Martin Pool (mbp)]

On 5 January 2011 14:37, Paul Sladen <email address hidden> wrote:
> Martin: I was getting about four crashes per day on Alt-Tab until I
> upgraded the RAM from 1GB to 3GB, I suspect it's partly
> starvation/paging related.

That's interesting data. But the machine I was testing on has 8GB RAM
and if that's not enough...

--
Martin

[Paul Sladen (sladen)]

Martin: maybe it's too much RAM, try taking some out ;-)

[sam tygier (samtygier)]

i have had this twice in a natty livecd session. i have 5GB of RAM

ubuntu@ubuntu:~$ free -m
             total used free shared buffers cached
Mem: 4973 3077 1895 0 215 1618
-/+ buffers/cache: 1243 3729
Swap: 6997 0 6997

[Gary M (garym)]

All duplicates so far are on various models of an ATI Radeon graphics controller.

[Chris Halse Rogers (raof)]

I believe that this particular bug is fixed in mesa 7.10, which is in the xorg-edgers PPA. Unfortunately, it exposes a new bug in the radeon mesa driver (FDO bug: https://bugs.freedesktop.org/show_bug.cgi?id=32246 ) which is as-yet unfixed.

[Chris (ccouzens)]

compiz still crashes with alt-tab even with mesa 7.10

$ glxinfo | grep version | grep Mesa
OpenGL version string: 2.1 Mesa 7.10

from dmesg:
[ 67.995123] show_signal_msg: 6 callbacks suppressed
[ 67.995132] compiz[1492]: segfault at 0 ip 00007f1540ed60ab sp 00007fffec9bcec0 error 4 in libdricore.so[7f1540e56000+20e000]
[ 170.500168] [drm:drm_mode_getfb] *ERROR* invalid framebuffer id
[ 269.775337] [drm:drm_mode_getfb] *ERROR* invalid framebuffer id
[ 275.324838] radeon 0000:01:05.0: r600_cs_track_check:361 mask 0x0000000F | 0x0000000F no cb for 0
[ 275.324846] radeon 0000:01:05.0: r600_packet3_check:1330 invalid cmd stream 502
[ 275.324851] [drm:radeon_cs_ioctl] *ERROR* Invalid command stream !

[Shiba (shiba89)]

Here compiz/unity crashes by pressing just Alt, now and then.

[Martin Pool (mbp)]

Please report a new bug for that.
On 27/03/2011 8:56 PM, "Fabrizio Narni" <email address hidden> wrote:
> Here compiz/unity crashes by pressing just Alt, now and then.
>
> --
> You received this bug notification because you are a direct subscriber
> of the bug.
> https://bugs.launchpad.net/bugs/684745
>
> Title:
> Alt-tab causes compiz assert failure: compiz: main/mipmap.c:43:
> bytes_per_pixel: Assertion `b >= 0' failed.
>
> To unsubscribe from this bug, go to:
> https://bugs.launchpad.net/ubuntu/+source/compiz/+bug/684745/+subscribe

[Charlie Kravetz (cjkgeek)]

There have been many changes in Ubuntu since that time you reported the bug and your problem may have been fixed with some of the updates. It would help us a lot if you could test it on a currently supported Ubuntu version. When you test it and it is still an issue, kindly upload the updated logs by running apport-collect 684745 and any other logs that are relevant for this particular issue.

I did attempt to reproduce this issue in an up-to-date Ubuntu 11.04, and was not able to. Compiz is now version 0.9.4.

[Martin Pool (mbp)]

I haven't seen this recently either.

[Elazar Leibovich (elazarl)]

Happens to me as well from time to time.

How can I send useful log?

[Daniel van Vugt (vanvugt)]

Found the offending assertion in mesa:
http://bazaar.launchpad.net/~ubuntu-branches/ubuntu/natty/mesa/natty-updates/view/head:/src/mesa/main/mipmap.c

[Elazar Leibovich (elazarl)]

Happens to me as well

OpenGL version string: 2.1 Mesa 7.11

Any workaround?

Anything I can post to help?

[Oibaf (oibaf)]

Is this still an issue with 14.04?