Re: pm/linux-next cause network stop working with qemu-kvm/e1000

[Yinghai Lu]

On Fri, Mar 22, 2013 at 5:27 PM, Yinghai Lu <yinghai@xxxxxxxxxx> wrote:
> c13085e519e8984fede41fa3d6a5502523b10996 is the first bad commit
> commit c13085e519e8984fede41fa3d6a5502523b10996
> Author: Bob Moore <robert.moore@xxxxxxxxx>
> Date:   Fri Mar 8 09:19:38 2013 +0000
>
>     ACPICA: Resource Mgr: Prevent infinite loops in resource walks
>
>     Add checks for zero-length resource descriptors in all code that
>     loops through a resource descriptor list. This prevents possible
>     infinite loops because the length is used to increment the traveral
>     pointer and detect the end-of-descriptor.
>
>     Signed-off-by: Bob Moore <robert.moore@xxxxxxxxx>
>     Signed-off-by: Lv Zheng <lv.zheng@xxxxxxxxx>
>     Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx>
>
> :040000 040000 84f29d6ee654ffe4c935ce9023208019b2ef09a5
> c8a6613be9a5a130f69e654c5b560a8adb2174db M      drivers
>
>
> long delay after
> calling  ip_auto_config+0x0/0xea4 @ 1
>
> also happen on one 8 sockets nehalem-ex.
>
> If I revert that commit, network works again.

Attached patch fix the problem. Please fold it into offending patch in
pm/linux-next.

Thanks

Yinghai

Attachment: fix_x.patch
Description: Binary data