Re: [Xen-devel] netback oops in Linux 3.14 / 3.15

["Dennis Lan (dlan)" <dennis.yxun@xxxxxxxxx>]

hi zoli:
  Can you help push this patch to stable kernel? eg, CC
stable@xxxxxxxxx, so greg-kh may include in the next release.
  Thanks.

Lan

On Wed, Aug 20, 2014 at 3:26 AM, Zoltan Kiss <zoltan.kiss@xxxxxxxxxx> wrote:
> Yes, it does worth to backport if the patch referred in the commit message
> is there.
>
> Zoli
>
>
> On 19/08/14 04:30, Dennis Lan (dlan) wrote:
>>
>> Hello zoli:
>>   should we back port this to longterm maintain kernel? current the
>> most recent version is 3.14.17
>>
>> Lan
>>
>> On Wed, Jun 11, 2014 at 2:42 AM, Zoltan Kiss <zoltan.kiss@xxxxxxxxxx>
>> wrote:
>>>
>>> Hi,
>>>
>>> It is very likely to be a recent issue, please apply this fix onto your
>>> kernel:
>>>
>>>
>>> http://git.kernel.org/cgit/linux/kernel/git/davem/net-next.git/commit/drivers/net/xen-netback?id=59ae9fc67007da8b5aea7b0a31c3607745cfbfee
>>>
>>> Zoli
>>>
>>>
>>> On 10/06/14 19:20, James Dingwall wrote:
>>>>
>>>> Hi,
>>>>
>>>> Under Linux 3.14.6 and 3.15 I am getting a BUG_ON() from netback in
>>>> xenvif_rx_action().  Under 3.15 it is the line at
>>>> 629 which is triggering:
>>>>
>>>> BUG_ON(ring_slots_used > max_slots_needed);
>>>>
>>>> The conditions are a 3.15.0 dom0 with Xen 4.4.0, a guest domain running
>>>> the same 3.15.0 kernel, an rsync in the guest
>>>> where the source filesystem is NFS mounted from the dom0.
>>>>
>>>> I have added a printk to log the values which is seen as the first line
>>>> in
>>>> the attached trace.  Is there an off-by-one
>>>> error in the calculation for max_slots_needed or is it worth adding some
>>>> more printks to find out how the value was
>>>> calculated?
>>>>
>>>> Please let me know if any other information about my configuration is
>>>> required.
>>>>
>>>> Thanks,
>>>> James
>>>>
>>>>
>>>>
>>>> _______________________________________________
>>>> Xen-devel mailing list
>>>> Xen-devel@xxxxxxxxxxxxx
>>>> http://lists.xen.org/xen-devel
>>>>
>>>
>>> _______________________________________________
>>> Xen-devel mailing list
>>> Xen-devel@xxxxxxxxxxxxx
>>> http://lists.xen.org/xen-devel
>
>

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