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SubjectRe: -stable commit 87cc4d1e (bisected) causes system freeze
On 13/07/2011 05:28 μμ, Marcus Becker wrote:
> Hi,
>
> With the upgrade to 2.6.39.2, I cannot copy more than ~1GB of data
> over the network before my input devices lock up.
> Example:
> use scp on tty1 to copy a folder or file larger than 3GB over my
> gigabit network and after ~1min the keyboard stops responding.
> use cp on tty1 with an nfs-3 share mounted over the same network and
> try to copy the same file, same happens
>
> I can hit ctrl+c for about 20-30 sec and eventually get an interrupt
> that stops the copying, then the input devices slowly gain control
> again. If I do the same on X, there is no chance to get in between and
> I have to use SysRq to reboot.
>
> In our bug report at https://bugs.gentoo.org/show_bug.cgi?id=373109
> We did a bisect between 2.6.39.1 and 2.6.39.2 and found the following
> patch is causing this problem:
>
> commit 87cc4d1e3e05af38c7c51323a3d86fe2572ab033
> Author: Chris Wright <chrisw@sous-sol.org>
> Date: Sat May 28 13:15:04 2011 -0500
>
> intel-iommu: Dont cache iova above 32bit
>
> I will also attach dmesg, current kernel config, and my bisect log (I
> put a uname -a into the log after each bisect) plus git bisect log
>
> Please let me know if you need more information.
>
> Thanks,
>
> Marcus
CC'ed the people who signed-off the patch.

--
Stratos Psomadakis
<psomas@gentoo.org>


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