Public bug reported:
After the update to Raring Skype doesn't start anymore. This is the
backtrace:
Starting program: /usr/bin/skype
[...]
Program received signal SIGSEGV, Segmentation fault.
0x08075f40 in malloc@plt ()
(gdb) bt
#0 0x08075f40 in malloc@plt ()
#1 0xf40dbe0e in ?? () from /usr/lib32/fglrx/libGL.so.1
#2 0xf40a815d in ?? () from /usr/lib32/fglrx/libGL.so.1
#3 0xf7feb1d5 in ?? () from /lib/ld-linux.so.2
#4 0xf7feb2fc in ?? () from /lib/ld-linux.so.2
#5 0xf7fdd1df in ?? () from /lib/ld-linux.so.2
relevant entries from /proc/<pid>/maps:
08048000-09ac4000 rwxp 00000000 fc:02 918326
/usr/bin/skype
f405c000-f4128000 r-xp 00000000 fc:02 923545
/usr/lib32/fglrx/libGL.so.1.2
f7fdc000-f7ffc000 r-xp 00000000 fc:02 4720042
/lib/i386-linux-gnu/ld-2.17.so
The disassembly at 0x08075f40 shows:
0x08075f40 <+0>: cmp %bl,0xd(%ebx,%eiz,8)
0x08075f44 <+4>: out %al,(%dx)
0x08075f45 <+5>: lods %ds:(%esi),%eax
0x08075f46 <+6>: jecxz 0x8075f85 <_ZN8QWebPage11qt_metacastEPKc@plt+5>
0x08075f48 <+8>: and $0xc3d4ec67,%eax
0x08075f4d <+13>: sub $0xb1f62b1a,%eax
... which looks very wrong to me.
objdump -T /usr/bin/skype shows the following:
08075f40 DF *UND* 00000000 GLIBC_2.0 malloc
Let me know if I can provide more information.
ProblemType: Bug
DistroRelease: Ubuntu 13.04
Package: libc6:i386 2.17-0ubuntu5
ProcVersionSignature: Ubuntu 3.8.0-19.29-generic 3.8.8
Uname: Linux 3.8.0-19-generic x86_64
NonfreeKernelModules: fglrx
ApportVersion: 2.9.2-0ubuntu8
Architecture: amd64
Date: Fri Apr 26 10:44:28 2013
InstallationDate: Installed on 2012-11-07 (169 days ago)
InstallationMedia: Kubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.1)
MarkForUpload: True
PackageArchitecture: i386
SourcePackage: eglibc
UpgradeStatus: Upgraded to raring on 2013-04-25 (0 days ago)
** Affects: eglibc (Ubuntu)
Importance: Undecided
Status: New
** Tags: apport-bug i386 raring
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https://bugs.launchpad.net/bugs/1173091
Title:
skype crashes because malloc in libGL from fglrx is resolved
incorrectly
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