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Re: [libvirt] Release candidate 2 of 1.0.3 is available



On Thu, Feb 28, 2013 at 11:00:28AM +0100, Peter Krempa wrote:
> On 02/27/13 15:26, Michal Privoznik wrote:
> >On 27.02.2013 12:20, Daniel Veillard wrote:
> >>    I have just tagged git and pushed the tarball. The rpms for F17
> >>are at the usual place too:
> >>      ftp://libvirt.org/libvirt/
> >>
> >>    I gave a try to the set of rpms and this seems to work fine for
> >>relatively simple tests.
> >>    Please give it more testing and let's keep change to git to
> >>bug fixes to minimize risks for 1.0.3.
> >>If everything goes well I will push 1.0.3 on Friday,
> >>
> >>     thanks !
> >>
> >>Daniel
> >>
> >
> >Maybe we want to postpone the release a bit; I was trying to find out how drop of qemu driver lock speeds up parallel startup of multiple domains, however - it is not working.
> >
> >I've created small test program - test4.c and run it against current HEAD. It takes arguments - domain names - which it spawns a separate thread per each domain and repeatedly starts and destroys domains. See code for more.
> >
> >Then, I've created 20 copies of diskless domain (attached as well): test1..test20 and run my test4 program over them:
> >
> >./test4 $(for ((i=1; i<21; i++)); do echo -n "test$i "; done)
> >
> >I had to tweak max_client_requests=20 to really run those 20 requests in parallel.
> >
> >However, what I am getting instead of nice measuring of speedup is:
> >
> >[9722] Starting test1 (round 20) ...[9725] Starting test4 (round 20) ...[9724] Starting test3 (round 20) ...[9723] Starting test2 (round 20) ...[9726] Starting test5 (round 20) ...[9727] Starting test6 (round 20) ...[9728] Starting test7 (round 20) ...[9729] Starting test8 (round 20) ...[9730] Starting test9 (round 20) ...[9731] Starting test10 (round 20) ...[9732] Starting test11 (round 20) ...[9733] Starting test12 (round 20) ...[9734] Starting test13 (round 20) ...[9735] Starting test14 (round 20) ...[9736] Starting test15 (round 20) ...[9737] Starting test16 (round 20) ...[9738] Starting test17 (round 20) ...[9741] Starting test20 (round 20) ...[9739] Starting test18 (round 20) ...[9740] Starting test19 (round 20) ...libvir:  error : An error occurred, but the cause is unknown
> >Unable to start domain test12libvir:  error : An error occurred, but the cause is unknown
> >Unable to start domain test14libvir:  error : An error occurred, but the cause is unknown
> >Unable to start domain test7libvir:  error : An error occurred, but the cause is unknown
> >Unable to start domain test1libvir: QEMU Driver error : Requested operation is not valid: domain is not running
> >Unable to destroy domain test12[9733] Destroying test12 ...[9728] Destroying test7 ...[9735] Destroying test14 ...[9733] Starting test12 (round 19) ...libvir: QEMU Driver error : Requested operation is not valid: domain is not running
> >Unable to destroy domain test7[9728] Starting test7 (round 19) ...libvir: QEMU Driver error : Requested operation is not valid: domain is not running
> >Unable to destroy domain test14[9735] Starting test14 (round 19) ...libvir:  error : An error occurred, but the cause is unknown
> >Unable to start domain test18libvir: QEMU Driver error : Requested operation is not valid: domain is not running
> >Unable to destroy domain test1[9722] Destroying test1 ...[9722] Starting test1 (round 19) ...libvir:  error : An error occurred, but the cause is unknown
> >Unable to start domain test8libvir:  error : An error occurred, but the cause is unknown
> >Unable to start domain test15[9725] Done
> 
> 
> I'm hitting this issue when I start the guest with the network
> interface in the original XML. If I delete it or change it to a
> regular (non-vepa) then everything works well. So the impact of this
> problem isn't that critical as originally reported.

That is still critical enough that we must fix it before release IMHO


Daniel
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