libvirtd crashed with SIGSEGV in lookup_or_create_bucket()

[NeilGreenwood]

Crashed on login.

ProblemType: Crash
DistroRelease: Ubuntu 12.04
Package: libvirt-bin 0.9.7-2ubuntu9
ProcVersionSignature: Ubuntu 3.2.0-7.13-generic 3.2.0-rc7
Uname: Linux 3.2.0-7-generic i686
ApportVersion: 1.90-0ubuntu1
Architecture: i386
Date: Thu Jan 5 14:26:33 2012
ExecutablePath: /usr/sbin/libvirtd
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Beta i386 (20100901.1)
ProcAttrCurrent: /usr/sbin/libvirtd (enforce)
ProcCmdline: /usr/sbin/libvirtd -d
ProcEnviron: PATH=(custom, no user)
Signal: 11
SourcePackage: libvirt
StacktraceTop:
 ?? () from /usr/lib/i386-linux-gnu/libp11-kit.so.0
 ?? () from /usr/lib/i386-linux-gnu/libp11-kit.so.0
 ?? () from /usr/lib/i386-linux-gnu/libp11-kit.so.0
 p11_kit_initialize_registered () from /usr/lib/i386-linux-gnu/libp11-kit.so.0
 gnutls_pkcs11_init () from /usr/lib/i386-linux-gnu/libgnutls.so.26
Title: libvirtd crashed with SIGSEGV in p11_kit_initialize_registered()
UpgradeStatus: Upgraded to precise on 2011-12-07 (30 days ago)
UserGroups:

[Apport retracing service (apport)]

StacktraceTop:
 lookup_or_create_bucket (map=0x9716300, key=0x248702, create=0) at hashmap.c:109
 _p11_hash_get (map=0x9716300, key=0x248702) at hashmap.c:139
 take_config_and_load_module_unlocked (config=0xbfd45d78, name=0xbfd45d74) at modules.c:412
 load_registered_modules_unlocked () at modules.c:462
 _p11_kit_initialize_registered_unlocked_reentrant () at modules.c:678

[Serge Hallyn (serge-hallyn)]

#0 0x002405bb in lookup_or_create_bucket (map=0x9716300, key=0x248702, create=0) at hashmap.c:109
        bucketp = <optimized out>
        hash = <optimized out>
#1 0x002406e7 in _p11_hash_get (map=0x9716300, key=0x248702) at hashmap.c:139
        bucketp = <optimized out>
#2 0x00241b59 in take_config_and_load_module_unlocked (config=0xbfd45d78, name=0xbfd45d74) at modules.c:412
        rv = <optimized out>
        mod = 0x970e570
        prev = <optimized out>
        module_filename = <optimized out>
        path = 0x970e530 ""
#3 load_registered_modules_unlocked () at modules.c:462
        iter = {map = 0x970e088, next = 0x0, index = 2}
        configs = 0x970e088
        key = 0x9716468
        config = 0x0
        rv = <optimized out>
        name = 0x0
        mode = 1
        critical = 0
#4 _p11_kit_initialize_registered_unlocked_reentrant () at modules.c:678