[libvirt] virConnectClose() sometimes seg faults libvirt 0.7.0

[Kaitlin Rupert]

Hi,

I'm trying to track down a seg fault I'm seeing with the 
libvirt-0.7.0-3.fc12.x86_64 rawhide version of libvirt.

I'm having trouble finding the exact set of steps, as I see the behavior 
when interacting with the libvirt-cim providers.

Here's the stack trace I was able to get. Looks like the seg fault 
actually occurs in netcf, which I haven't looked at much.  Has anyone 
seen this?

Program received signal SIGSEGV, Segmentation fault.
0x00007fffe4004383 in ?? ()
(gdb) bt
#0  0x00007fffe4004383 in ?? ()
#1  0x00007ffff6a5cbfc in xmlHashScanFull__internal_alias (
     table=0x7fffe4005f50, f=<value optimized out>, data=<value 
optimized out>)
     at hash.c:849
#2  0x00007ffff6a5cc4c in xmlHashScan__internal_alias 
(table=0x7fffe400ef10,
     f=<value optimized out>, data=<value optimized out>) at hash.c:818
#3  0x00007ffff6ff5104 in xsltShutdownExts () from /usr/lib64/libxslt.so.1
#4  0x00007ffff6fe3e3d in xsltFreeStylesheet () from /usr/lib64/libxslt.so.1
#5  0x00007ffff7452961 in ?? () from /usr/lib64/libnetcf.so.1
#6  0x00007ffff74501d1 in ncf_close () from /usr/lib64/libnetcf.so.1
#7  0x000000000045bb8f in interfaceCloseInterface (conn=0x7fffe4000a90)
     at interface_driver.c:164
#8  0x00007ffff7af46a6 in virConnectClose (conn=0x7fffe4000a90)
     at libvirt.c:1244
#9  0x0000000000412828 in qemudFreeClient (client=can't compute CFA for 
this frame
) at qemud.c:2146
#10 qemudRunLoop (client=can't compute CFA for this frame
) at qemud.c:2219
#11 0x0000000000415b43 in main (argc=<value optimized out>,
     argv=<value optimized out>) at qemud.c:2994

---------------------------

Relevant part of the log:

17:13:15.930: debug : do_open:1056 : interface driver 2 Interface 
returned SUCCESS
17:13:15.930: debug : do_open:1076 : storage driver 0 Test returned DECLINED
17:13:15.930: debug : do_open:1076 : storage driver 1 remote returned 
DECLINED
17:13:15.930: debug : do_open:1076 : storage driver 2 storage returned 
SUCCESS
17:13:15.930: debug : do_open:1096 : node driver 0 Test returned DECLINED
17:13:15.930: debug : do_open:1096 : node driver 1 remote returned DECLINED
17:13:15.930: debug : do_open:1096 : node driver 2 halDeviceMonitor 
returned SUCCESS
17:13:15.930: debug : qemudDispatchClientFailure:1394 : Deregistering to 
relay remote events
17:13:15.930: debug : virConnectDomainEventDeregister:8582 : 
conn=0x7fffe014dd00, cb=0x41d620
17:13:15.930: debug : virConnectClose:1232 : conn=0x7fffe014dd00

-- 
Kaitlin Rupert
IBM Linux Technology Center
kaitlin at linux.vnet.ibm.com