crash with SIGSEGV in _pixman_image_get_solid()

[João Antonio Santana]

Random. Clicking on Ubuntu icon causes Compiz to crash.

ProblemType: Crash
DistroRelease: Ubuntu 12.04
Package: unity 5.4.0-0ubuntu1
ProcVersionSignature: Ubuntu 3.2.0-17.26-generic 3.2.6
Uname: Linux 3.2.0-17-generic x86_64
ApportVersion: 1.92-0ubuntu1
Architecture: amd64
Date: Thu Feb 23 21:16:53 2012
ExecutablePath: /usr/bin/compiz
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Alpha amd64 (20120201.1)
ProcCmdline: compiz
SegvAnalysis:
 Segfault happened at: 0x7f6eb6dec300: add %al,(%rax)
 PC (0x7f6eb6dec300) in non-executable VMA region: 0x7f6eb65ff000-0x7f6eb6dff000 rw-p None
 source "%al" ok
 destination "(%rax)" (0xd836f778) not located in a known VMA region (needed writable region)!
 Stack memory exhausted (SP below stack segment)
SegvReason:
 executing writable VMA None
 writing unknown VMA
Signal: 11
SourcePackage: unity
StacktraceTop:
 ?? ()
 ?? () from /usr/lib/x86_64-linux-gnu/libpixman-1.so.0
 ?? () from /usr/lib/x86_64-linux-gnu/libpixman-1.so.0
 pixman_image_composite32 () from /usr/lib/x86_64-linux-gnu/libpixman-1.so.0
 ?? () from /usr/lib/x86_64-linux-gnu/libcairo.so.2
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo

[Apport retracing service (apport)]

StacktraceTop:
 ?? ()
 _pixman_image_get_solid (imp=<optimized out>, image=<optimized out>, format=<optimized out>) at ../../pixman/pixman-image.c:892
 sse2_composite_over_n_8_8888 (imp=<optimized out>, info=<optimized out>) at ../../pixman/pixman-sse2.c:3132
 pixman_image_composite32 (op=<optimized out>, src=<optimized out>, mask=<optimized out>, dest=<optimized out>, src_x=22, src_y=26, mask_x=0, mask_y=0, dest_x=22, dest_y=26, width=13, height=17) at ../../pixman/pixman.c:712
 _composite_spans (closure=<optimized out>, dst=<optimized out>, dst_format=<optimized out>, op=CAIRO_OPERATOR_OVER, pattern=<optimized out>, dst_x=22, dst_y=0, extents=0x7f6eb6ded690, clip_region=0x0) at /build/buildd/cairo-1.10.2/src/cairo-image-surface.c:3510

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Michal Hruby (mhr3)]

Both Gnome Shell and Unity are loading icons in background threads, so it's likely a thread-unsafety issue in pixman.

[bwat47 (bwat47)]

still a problem with 12.04 LTS with all updates. never see the issue in 12.10 though. I saw it today on a fresh install of 12.04, fully updated. logged in, clicked dash, compiz crashed.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Will Cooke (willcooke)]

As part of the big bug clear up for 16.04 LTS I am marking this bug as Wont Fix.
These types of crasher are better handled by errors.ubutnu.com which can collate similar crash reports to help us identify persitent bugs rather than one-off crashes.
Sorry we are not able to help with this specific issue. If you are still experiencing this crash, please re-open the bug and add the tag "desktop-bugscrub-reopened". See https://wiki.ubuntu.com/BigDesktopBugScrub for more information.

[Jeremy Bícha (jbicha)]

Thank you for reporting this bug to Ubuntu. Ubuntu 12.04 LTS reached End of Life in April. See this document for currently supported Ubuntu releases: https://wiki.ubuntu.com/Releases

Please upgrade to Ubuntu 16.04 LTS and re-test. If the bug is still reproducible, increase the verbosity of the steps to recreate it so we can try again.

I apologize that we are not always to respond to bug reports promptly. Do feel free to report any other bugs you may find.