[Openstack] [Nova] Got 'qemu-img: error while writing sector 634880: Input/output error' in _create_image

Razique Mahroua razique.mahroua at gmail.com
Mon Sep 24 10:40:48 UTC 2012


Here is what I found
http://comments.gmane.org/gmane.comp.emulators.qemu/153254
http://osdir.com/ml/qemu-devel/2012-05/msg04234.html

What do you think ?

Nuage & Co - Razique Mahroua 
razique.mahroua at gmail.com



Le 24 sept. 2012 à 10:43, Wangpan <hzwangpan at corp.netease.com> a écrit :

> qemu-img check -f qcow2 test.qcow2
> No errors were found on the image.
>  
> 2012-09-24
> Wangpan
> 发件人:Razique Mahroua
> 发送时间:2012-09-24 16:30
> 主题:Re: Re: [Openstack] [Nova] Got 'qemu-img: error while writing sector 634880: Input/output error' in _create_image
> 收件人:"Wangpan"<hzwangpan at corp.netease.com>
> 抄送:"openstack"<openstack at lists.launchpad.net>
>  
> hi, 
> what about a 
> qemu-img check -f qcow2 test.qcow2
> 
> 
> Nuage & Co - Razique Mahroua 
> razique.mahroua at gmail.com
> 
> <NUAGECO-LOGO-Fblan_petit(1).jpg>
> 
> Le 24 sept. 2012 à 10:19, "Wangpan"<hzwangpan at corp.netease.com> a écrit :
> 
>> Thanks for your attention!
>> 
>> - disk full  ----# I believe there is enough space, because I have tried to boot serveral instances after this error with the same image, they are all booted successfully.
>> - permission issues    ----# Not this reason, too. explain as above.
>> 
>> I still believe this is a race problem, if we convert to image from qcow2 to raw at a short interval, one of the convertion may fail, 
>> I have verified this by running two same commands continuously such as:
>> qemu-img convert -f qcow2 -O raw  test.qcow2 test.part &
>> and one of them give me the same error:
>> qemu-img: error while writing sector 1052672: Input/output error

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