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Re: [libvirt] Bug report 826704 - sanlock releases all resources on virsh detach-disk



> I compiled and tested the patch, and the release of the resource looks fine now. Only the specific resource/disk is being removed from sanlock now, while the others stay registered.
> 

Hold on, despite the behavior is as expected with the patch, there seems to be an issue with the return value or check:

2012-07-09 10:53:29.105+0000: 6686: debug : virLockManagerAddResource:320 : lock=0x7f22e8009b60 type=0 name=/var/lib/libvirt/images/testlun2.img nparams=0 params=(nil) flags=0
2012-07-09 10:53:29.105+0000: 6686: debug : virLockManagerRelease:352 : lock=0x7f22e8009b60 state=(nil) flags=0
2012-07-09 10:53:29.105+0000: 6686: error : virLockManagerSanlockRelease:842 : Failed to release lock: Operation not permitted
2012-07-09 10:53:29.105+0000: 6686: debug : virLockManagerFree:374 : lock=0x7f22e8009b60
2012-07-09 10:53:29.105+0000: 6686: warning : qemuDomainDetachPciDiskDevice:1356 : Unable to release lock on /var/lib/libvirt/images/testlun2.img



The disk resource is however removed from the domain, and from sanlock (as exposed with: sanlock client status) as we expected it to be.

Probably something is missing in the return value handling.

Fyi,
Frido


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