Re: [Qemu-discuss] Help needed to debug why my VMs stop

[Anuj Agrawal]

Any ideas?

Also, would like to know if there are any caveats I should be aware of
if I change the default action from stop to notify or ignore when an
i/o error occurs.

Thanks,
Anuj

On Sat, Sep 26, 2015 at 12:13 AM, Anuj Agrawal <address@hidden> wrote:
> Hi All,
>
> I have some VMs that stop arbitrarily at some point and I see the
> following in vm logs:
>
> qemu-system-x86_64: /build/buildd/qemu-2.1+dfsg/block.c:3606:
> bdrv_error_action: Assertion `error >= 0' failed.
> 2015-09-25 11:56:58.978+0000: shutting down
>
> Reading up over these, figured that the vm stopped due to an I/O
> error. However, I am unable to figure out what caused the I/O error
> and if there is anything I can do to prevent it from happening. Or, if
> it is a race condition in the code that is being hit for some reason.
> In case, it helps, these are data-intensive VMs with few 4T sata
> drives attached to them.
>
> In libvirtd.log, I can see this:
> 2015-09-25 11:56:58.977+0000: 2221: error : qemuMonitorIO:661 :
> internal error: End of file from monitor
>
> But I guess, this comes every time a VM is stopped.
>
> Using libvirt version: 1.2.8, package: 1.2.8-0ubuntu11.8
>
> Kindly help.
>
> Thanks,
> Anuj Agrawal