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[libvirt] Are they reasonable FD leaks?



Hi all,
I met some FD leaks when I tried the following scenario:

% dd if=/dev/null of=/var/lib/libvirt/images/foo bs=1 count=1 seek=10M
% virsh define foo.xml                   (disk source file points to '/var/lib/libvirt/images/foo')
% virsh vol-clone foo foo-clone default  (the original guest name is 'foo') 
% virsh pool-refresh default
% virsh vol-list default                 (make sure 'foo-clone' volume exists)
% virsh define foo-clone.xml             (disk source file points to '/var/lib/libvirt/images/foo-clone')
% valgrind -v --track-fds=yes virsh undefine foo-clone --remove-all-storage

<snip>

==21003== FILE DESCRIPTORS: 10 open at exit.
==21003== Open file descriptor 9:
==21003==    at 0x39CF0D8BB7: pipe2 (in /lib64/libc-2.12.so)
==21003==    by 0x4E4FC97: rpl_pipe2 (pipe2.c:59)
==21003==    by 0x4D5C3FA: virNetClientNew (virnetclient.c:278)
==21003==    by 0x4D5C7B2: virNetClientNewUNIX (virnetclient.c:352)
==21003==    by 0x4D47EAA: doRemoteOpen (remote_driver.c:601)
==21003==    by 0x4D499AF: remoteOpen (remote_driver.c:873)
==21003==    by 0x4D12D23: do_open (libvirt.c:1196)
==21003==    by 0x4D13EE5: virConnectOpenAuth (libvirt.c:1422)
==21003==    by 0x415040: vshReconnect (virsh.c:637)
==21003==    by 0x4152A7: vshCommandRun (virsh.c:17688)
==21003==    by 0x4264D3: main (virsh.c:19270)
==21003==
==21003== Open file descriptor 8:
==21003==    at 0x39CF0D8BB7: pipe2 (in /lib64/libc-2.12.so)
==21003==    by 0x4E4FC97: rpl_pipe2 (pipe2.c:59)
==21003==    by 0x4D5C3FA: virNetClientNew (virnetclient.c:278)
==21003==    by 0x4D5C7B2: virNetClientNewUNIX (virnetclient.c:352)
==21003==    by 0x4D47EAA: doRemoteOpen (remote_driver.c:601)
==21003==    by 0x4D499AF: remoteOpen (remote_driver.c:873)
==21003==    by 0x4D12D23: do_open (libvirt.c:1196)
==21003==    by 0x4D13EE5: virConnectOpenAuth (libvirt.c:1422)
==21003==    by 0x415040: vshReconnect (virsh.c:637)
==21003==    by 0x4152A7: vshCommandRun (virsh.c:17688)
==21003==    by 0x4264D3: main (virsh.c:19270)
==21003==
==21003== Open AF_UNIX socket 7: <unknown>
==21003==    at 0x39CF0E67B7: socket (in /lib64/libc-2.12.so)
==21003==    by 0x4D6B0F0: virNetSocketNewConnectUNIX (virnetsocket.c:490)
==21003==    by 0x4D5C79F: virNetClientNewUNIX (virnetclient.c:349)
==21003==    by 0x4D47EAA: doRemoteOpen (remote_driver.c:601)
==21003==    by 0x4D499AF: remoteOpen (remote_driver.c:873)
==21003==    by 0x4D12D23: do_open (libvirt.c:1196)
==21003==    by 0x4D13EE5: virConnectOpenAuth (libvirt.c:1422)
==21003==    by 0x415040: vshReconnect (virsh.c:637)
==21003==    by 0x4152A7: vshCommandRun (virsh.c:17688)
==21003==    by 0x4264D3: main (virsh.c:19270)

</snip>

It seems libvirt deliberately leaks these FDs, right?

Regards,
Alex


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