virsh crashed with SIGSEGV in xdr_string()

[Jamie Strandboge]

I was having problems with image corruption in my sec-lucid-amd64 VM and so I used 'virsh snapshot-list' to see what snapshots were there. This resulted in a segfault:

$ virsh snapshot-list sec-lucid-amd64
Segmentation fault (core dumped)

ProblemType: Crash
DistroRelease: Ubuntu 12.10
Package: libvirt-bin 0.9.13-0ubuntu7
ProcVersionSignature: Ubuntu 3.5.0-10.10-generic 3.5.1
Uname: Linux 3.5.0-10-generic x86_64
ApportVersion: 2.4-0ubuntu8
Architecture: amd64
Date: Tue Aug 21 13:29:14 2012
ExecutablePath: /usr/bin/virsh
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release amd64 (20110425.2)
ProcCmdline: BOOT_IMAGE=/boot/vmlinuz-3.5.0-10-generic root=UUID=88689ad2-74b5-442c-9290-8ae60b63e16b ro quiet splash vt.handoff=7
SegvAnalysis:
 Segfault happened at: 0x7fce0e727a91 <__strlen_sse2+49>: pcmpeqb (%rax),%xmm0
 PC (0x7fce0e727a91) ok
 source "(%rax)" (0x000000b0) not located in a known VMA region (needed readable region)!
 destination "%xmm0" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: libvirt
StacktraceTop:
 xdr_string (xdrs=0x7fff0a77a160, cpp=0x7fff0a77a370, maxsize=1048576) at xdr.c:758
 ?? () from /usr/lib/libvirt.so.0
 ?? () from /usr/lib/libvirt.so.0
 ?? () from /usr/lib/libvirt.so.0
 virNetMessageEncodePayload () from /usr/lib/libvirt.so.0
Title: virsh crashed with SIGSEGV in xdr_string()
UpgradeStatus: Upgraded to quantal on 2012-08-13 (7 days ago)
UserGroups: adm admin cdrom dialout kvm libvirtd lpadmin plugdev sambashare sbuild
modified.conffile..etc.dnsmasq.d.libvirt.bin: [deleted]

[Apport retracing service (apport)]

StacktraceTop:
 xdr_string (xdrs=0x7fff0a77a160, cpp=0x7fff0a77a370, maxsize=1048576) at xdr.c:758
 remoteRegister () at /build/buildd/libvirt-0.9.13/./src/remote/remote_driver.c:5472
 xdr_remote_nonnull_network (xdrs=0x7fff0a77a160, objp=0x7fff0a77a370) at /build/buildd/libvirt-0.9.13/./src/remote/remote_protocol.c:71
 ?? () at /build/buildd/libvirt-0.9.13/./src/remote/remote_protocol.c:4532 from /tmp/tmpMTy0h3/usr/lib/libvirt.so.0
 ?? ()

[Launchpad Janitor (janitor)]

This bug was fixed in the package libvirt - 0.9.13-0ubuntu9

---------------
libvirt (0.9.13-0ubuntu9) quantal; urgency=low

  * debian/patches/lp1039678.patch: fix segfault in 'snapshot-list'
    - LP: #1039678
 -- Jamie Strandboge <email address hidden> Tue, 21 Aug 2012 13:59:34 -0500