On 02/04/2014 09:02 AM, Franky Van Liedekerke wrote: > Hi, > > using libvirt 1.2.0 on a up-to-date Centos6.5 machine leads to > occasional segmentation faults (see below). > Sometimes it runs for 5 minutes, sometimes for an hour, but after that > the result is always the same: segfault after some weird qom-list, that > apparently the qemu version on centos doesn't know. Has 1.2.1 a known > fix for this? > > Franky (debug log of last crash is below the dotted line) > > ------------------------------------------------- > > 2014-02-04 15:50:27.351+0000: 9082: error : > qemuMonitorJSONCheckError:354 : internal error: unable to execute QEMU > command 'qom-list': The command qom-list has not been found > Caught Segmentation violation dumping internal log buffer: >
Sounds to me like poor fallback - a patch in libvirt was tested against a newer version of qemu that provides qom-list, but doesn't gracefully handle older qemu where it doesn't work. Are you in a position to bisect which libvirt patch introduced the problem? It looks like our first use of qom-list was in 1.1.1, with commit d76a897. > 2014-02-04 15:50:27.351+0000: 9082: error : > qemuMonitorJSONCheckError:354 : internal error: unable to execute QEMU > command 'qom-list': The command qom-list has not been found > > -- Eric Blake eblake redhat com +1-919-301-3266 Libvirt virtualization library http://libvirt.org
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