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[libvirt] virConnectClose() sometimes seg faults libvirt 0.7.0



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 linux vnet ibm com


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