Re: [Xen-devel] xen-netfront: txqueues in a frozen state, no packets in the softqueue

[Alessandro Salvatori <sandr8@xxxxxxxxx>]

Andrew,

  is there a hot patch available for Xenserver 6.0.0 that fixes this?
if not, when would it be available?

thank you!
-alessandro-

On Fri, Feb 17, 2012 at 12:17, Alessandro Salvatori <sandr8@xxxxxxxxx> wrote:
> maybe i replied too quickly and impulsively.
>
> On Fri, Feb 17, 2012 at 12:15, Alessandro Salvatori <sandr8@xxxxxxxxx> wrote:
>> we are using PV networking (and disk for what matters).
>
> we are using PV networking (and disk for what matters), *on HVM* (PV/HVM).
>
> thanks!
> -Alessandro-
>  Here i am, A young man,
>  A crashing computer program,
>  Here is a pen, write out my name...
>
> (from: The Servant - Orchestra)
>
>
>
> On Fri, Feb 17, 2012 at 12:15, Alessandro Salvatori <sandr8@xxxxxxxxx> wrote:
>> we are using PV networking (and disk for what matters).
>>
>> thanks!
>> -Alessandro-
>>  Here i am, A young man,
>>  A crashing computer program,
>>  Here is a pen, write out my name...
>>
>> (from: The Servant - Orchestra)
>>
>> On Fri, Feb 17, 2012 at 03:44, Andrew Cooper <andrew.cooper3@xxxxxxxxxx> 
>> wrote:
>>> XenServer had an issue which looked a little like this.
>>>
>>> The fix was
>>> http://xenbits.xensource.com/hg/xen-unstable.hg/rev/02b92d035f64 , but
>>> if you are using PV guests then this is certainly not the same issue.
>>>
>>> ~Andrew
>>>
>>> On 17/02/12 11:41, Stefano Stabellini wrote:
>>>> Forwarding this email to xen-devel with a proper subject.
>>>>
>>>>
>>>> ---------- Forwarded message ----------
>>>> Stefano,
>>>>
>>>>    after a few days running traffic, we are seeing that one of the
>>>> linux netdevice txqueues has gone into a frozen state and any packet
>>>> that you give from there onwards is always queued to a softqueue and
>>>> is never put into the xen-netfront txqueue...
>>>>
>>>> it also looks like xen-netfront is not registering a timeout callback
>>>> and this may lead to a crash if the callback ever gets invoked.
>>>>
>>>> do you happen to know if this has been seen before and if there was a
>>>> fix for it?
>>>>
>>>> we are currently running with linux-3.0.9.
>>>>
>>>> Thank you!
>>>> -Alessandro-
>>>>
>>>> _______________________________________________
>>>> Xen-devel mailing list
>>>> Xen-devel@xxxxxxxxxxxxxxxxxxx
>>>> http://lists.xensource.com/xen-devel
>>>
>>> --
>>> Andrew Cooper - Dom0 Kernel Engineer, Citrix XenServer
>>> T: +44 (0)1223 225 900, http://www.citrix.com
>>>

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