[vdsm] vdsm unit test error

Zhou Zheng Sheng zhshzhou at linux.vnet.ibm.com
Wed May 23 01:06:29 UTC 2012


I googled this error. It seems a Fedora error. It is report that 
disabling sandbox service and restarting the computer can fix the 
problem. However the cause is not clear, the bug remains 'new' on the 
bugzilla. The link is
https://bugzilla.redhat.com/show_bug.cgi?id=808795#c31


于 2012年05月23日 03:52, Dan Kenigsberg 写道:
> On Tue, May 22, 2012 at 05:02:01PM +0800, ShaoHe Feng wrote:
>> both mountTests  and parted_utils_tests failed.
>
> Failed where? On your own host? Is it reproducible? We had a similar,
> but transient, problem in
> http://jenkins.ovirt.org/job/vdsm_unit_tests/143/console
>
> We, or some other suite using the server, may be leaking a loop device.
> Eyal Edri, do you know what has made this go away in run #144?
>
>>
>> the test execute  'mount' and 'umount' command. after the umount
>> command, the loop device can not be freed
>>
>> here is the log:
>>    -------------------->>  begin captured logging<<  --------------------
>>    Storage.Misc.excCmd: DEBUG: 'dd if=/dev/zero of=/tmp/tmpH2KSCr
>> bs=100M count=1' (cwd None)
>>    Storage.Misc.excCmd: DEBUG: SUCCESS:<err>  = '1+0 records in\n1+0
>> records out\n104857600 bytes (105 MB) copied, 0.266024 s, 39  4
>> MB/s\n';<rc>  = 0
>>    Storage.Misc.excCmd: DEBUG: 'losetup -f --show /tmp/tmpH2KSCr' (cwd None)
>>    Storage.Misc.excCmd: DEBUG: FAILED:<err>  = 'losetup: could not
>> find any free loop device\n';<rc>  = 255
>>    --------------------->>  end captured logging<<  ---------------------
>
> Does your Linux host have a trace of the generated loop device?
> What says
>      losetup  -a
> ?
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-- 
Thanks and best regards!

Zhou Zheng Sheng / 周征晟
E-mail: zhshzhou at linux.vnet.ibm.com
Telephone: 86-10-82454397



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