Quoting Serge Hallyn (serge.hallyn@xxxxxxxxxxxxx): > Quoting Serge Hallyn (serge.hallyn@xxxxxxxxxxxxx): > > Quoting Wen Congyang (wency@xxxxxxxxxxxxxx): > > > At 03/22/2012 06:54 AM, Serge Hallyn Wrote: > > > > Hi, > > > > > > > > I grabbed today's git head of libvirt. Created a VM (clean install of > > > > ubuntu oneiric, installed through virt-manager), and cloned it 3 times. > > > > Then I did > > > > > > > > serge@ubuntu:~$ for i in `seq 1 4`; do virsh start o$i > /tmp/o$i 2>&1 & done > > > > [1] 12184 > > > > [2] 12185 > > > > [3] 12186 > > > > [4] 12187 > > > > serge@ubuntu:~$ virsh list > > > > error: Failed to list active domains > > > > error: End of file while reading data: Input/output error > > (Note that most of the time, virsh list actually succeeds, only one of > the virsh start's fails) > > > > I cannot reproduce this problem on RHEL6. At last, found the trigger. I can now reproduce this on uptodate fedora 16, using http://people.canonical.com/~serge/breaklibvirt.sh (run as root from /home/$user). The trigger is the qemu hook. If I don't have a qemu hook, then I can do 100 runs of the parallel starts and lists with no failures. But introduce a slow hook, and the very first run always fails. -serge -- libvir-list mailing list libvir-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/libvir-list