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Description of problem ---------------------------------- When managing images on NFS share, libvirtd blocks for long times before returning "createLinux failed: virDomainCreateLinux() failed monitor socket did not show up.: No such file or directory" and logging Jan 14 13:18:18 lal06 libvirtd: 13:18:18.013: error : qemuSetupDiskPathAllow:3551 : Unable to allow access for disk path /shared/storage/image_pool/835ba933-7679-467a-92df-d48545070c44: Stale NFS file handle (amongst others). I'm filing under advisement of danpb: (12:40:56 PM) bowe: looks like NFS is getting flaky.. that would match the symptoms. (12:41:32 PM) danpb: bowe: please file a BZ, we should treat stale NFS handle as fatal (12:41:57 PM) bowe: will do... Version-Release number of selected component (if applicable): ------------------------------------------------------------------ [root@lal06 image_pool]# rpm -qa | grep -e libvirt -e kvm -e qemu -e kernel libvirt-client-0.8.1-27.el6.x86_64 libvirt-0.8.1-27.el6.x86_64 kernel-2.6.32-71.el6.x86_64 kernel-firmware-2.6.32-71.el6.noarch qemu-img-0.12.1.2-2.113.el6.x86_64 dracut-kernel-004-32.el6.noarch abrt-addon-kerneloops-1.1.13-4.el6.x86_64 gpxe-roms-qemu-0.9.7-6.3.el6.noarch qemu-kvm-0.12.1.2-2.113.el6.x86_64 [root@lal06 image_pool]# uname -a Linux lal06.gls.prod.phx2.redhat.com 2.6.32-71.el6.x86_64 #1 SMP Wed Sep 1 01:33:01 EDT 2010 x86_64 x86_64 x86_64 GNU/Linux How reproducible: Only presents under load Steps to Reproduce: ------------------------------------------------------------------ 1. get 20 students in a virtual classroom 2. have them each fire up their guests 3. wait 2 hours ;).
Since RHEL 6.1 External Beta has begun, and this bug remains unresolved, it has been rejected as it is not proposed as exception or blocker. Red Hat invites you to ask your support representative to propose this request, if appropriate and relevant, in the next release of Red Hat Enterprise Linux.
Code inspection shows we check for return value of every function on chain of function calls from that error till virDomainCreateXML(). So logs would be really helpful here. Can you please provide them?
unfortunately in the meantime we've returned to RHEL5 for our hosts to avoid the issue, so would have a hard time reproducing. I'll keep this in mind if we see it again at somepoint RHEL6...
*** Bug 694422 has been marked as a duplicate of this bug. ***
*** This bug has been marked as a duplicate of bug 692663 ***