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Re: [libvirt] Availability of 0.9.4 candidate release 2 rc1

On 08/01/2011 10:05 PM, ajia wrote:
On 08/01/2011 08:38 PM, Guannan Ren wrote:
On 08/01/2011 05:04 PM, Daniel Veillard wrote:
On Mon, Aug 01, 2011 at 04:51:38PM +0800, Wen Congyang wrote:
At 07/30/2011 03:02 PM, Daniel Veillard Write:
I actually tagged and pushed the rc2 tarball and rpms yesterday
but completely forgot to send the associated mail, oops !


Hopefully it fixes most of the problems raised with rc1, including
a number of leaks. Please report and if you had an issue with rc1
which is still not fixed there (or in git) please raise it ASAP.
I'm planning for the final release early Tuesday 2 morning (i.e.
late Monday for most :-)
If client(for example: virsh) exits unexpectedly, it will cause libvirtd

Steps to reproduce this problem(vm1 does not run):
1. for ((i=0; i< 50; i++)); do virsh managedsave vm1& done; killall virsh

The reason is that we free virNetServerClient when the refs is not 0.

I read the code under the directory src/rpc/, and find we have xxxRef(), but we do not have xxxUnref(). And sometimes we free the data structure if ref is not 0. We add an reference of the data structure, but sometimes we forget to
unref it.
   Okay, so I count 3 issues we should fix before pushing 0.9.4 out
    - this one (can you open a bugzilla for tracking), are you gonna
      provide a patch ? Dan Berrange won't be around today
    - fix crash when mixing sync and async monitor jobs, we are waiting
      on Eric's finding of his v3 version
    - domabort seems broken in rc2

  thanks for the heads-up !


There is another issues needed to be fixed before pushing 0.9.4
       The "lock_manager " in qemu.conf still uses old default value .
When it is uncommented, it will lead to qemu driver initialization failure:

20:47:45.227: 23830: error : virLockManagerPluginNew:147 : Plugin /usr/lib64/libvirt/lock-driver/fcntl.so not accessible: No such file or directory 20:47:45.227: 23830: error : qemudLoadDriverConfig:457 : Failed to load lock manager fcntl 20:47:45.227: 23830: error : qemudStartup:540 : Missing lock manager implementation
20:47:45.227: 23830: error : virStateInitialize:846 : Initialization of QEMU state driver failed
I have ever discussed this issue with danpb, the above errror is a expected result, because libvirt indeed hasn't implemented 'fcntl' lock at present, in addition, the biggest issue is if we change 'fcntl' to 'sanlock' in qemu.conf then restart libvirtd service, virsh command will be hung, danpb has fixed this issue in recent, and commit id is 92509413e2da3260b99177de82c85a59cf8ddfd9, so IMHO, this is not a big deal, here is a known bug about this issue.


       I proposed a patch that needs an ACK:

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