unity crashed with SIGSEGV

[Сергій Найтінгейл]

1. opened dash menu
2. inserted usb-flash & unity freezed
3. after removing flash unity/compiz were restarted

ProblemType: Crash
DistroRelease: Ubuntu 12.04
Package: unity 5.4.0-0ubuntu2
ProcVersionSignature: Ubuntu 3.2.0-17.27-generic-pae 3.2.6
Uname: Linux 3.2.0-17-generic-pae i686
ApportVersion: 1.93-0ubuntu2
Architecture: i386
CrashCounter: 1
Date: Thu Mar 1 08:44:32 2012
ExecutablePath: /usr/bin/compiz
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Beta i386 (20120228)
ProcCmdline: compiz
SegvAnalysis:
 Segfault happened at: 0xb3f4a558: or %bh,(%ecx)
 PC (0xb3f4a558) ok
 source "%bh" ok
 destination "(%ecx)" (0x00000014) not located in a known VMA region (needed writable region)!
 Stack memory exhausted (SP below stack segment)
SegvReason: writing NULL VMA
Signal: 11
SourcePackage: unity
StacktraceTop:
 ?? () from /usr/lib/i386-linux-gnu/libcairo.so.2
 ?? () from /usr/lib/i386-linux-gnu/libcairo.so.2
 ?? () from /usr/lib/i386-linux-gnu/libcairo.so.2
 ?? () from /usr/lib/i386-linux-gnu/libcairo.so.2
 ?? () from /usr/lib/i386-linux-gnu/libcairo.so.2
Title: compiz crashed with SIGSEGV
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo

[Apport retracing service (apport)]

StacktraceTop:
 _cairo_freepool_alloc_from_pool (freepool=0xa6d0dc6c) at /build/buildd/cairo-1.10.2/src/cairo-freelist-private.h:98
 _cairo_freepool_alloc (freepool=0xa6d0dc6c) at /build/buildd/cairo-1.10.2/src/cairo-freelist-private.h:115
 add_cell (uncovered=<optimized out>, covered=<optimized out>, x=6, sweep=0xa6d0cbd4) at /build/buildd/cairo-1.10.2/src/cairo-rectangular-scan-converter.c:285
 _active_edges_to_spans (sweep=0xa6d0cbd4) at /build/buildd/cairo-1.10.2/src/cairo-rectangular-scan-converter.c:349
 render_rows (sweep_line=0xa6d0cbd4, renderer=0xa6d0f200, height=1) at /build/buildd/cairo-1.10.2/src/cairo-rectangular-scan-converter.c:472

[Andrea Azzarone (azzar1)]

Seems like cairo releated. It's an old bug and without duplicated. Marking as invalid.