linux-kernel - Re: -stable commit 87cc4d1e (bisected) causes system freeze

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <4E1DF736.9020908@gentoo.org>
Date:	Wed, 13 Jul 2011 22:51:18 +0300
From:	Stratos Psomadakis <psomas@...too.org>
To:	lkml <linux-kernel@...r.kernel.org>
CC:	Chris Wright <chrisw@...s-sol.org>,
	Greg Kroah-Hartman <gregkh@...e.de>,
	David Woodhouse <David.Woodhouse@...el.com>, kernel@...too.org
Subject: Re: -stable commit 87cc4d1e (bisected) causes system freeze

On 13/07/2011 09:55 μμ, Stratos Psomadakis wrote:
> 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@...s-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.
>
Bug #39312 [1] at b.k.o

[1] https://bugzilla.kernel.org/show_bug.cgi?id=39312

-- 
Stratos Psomadakis
<psomas@...too.org>



Download attachment "signature.asc" of type "application/pgp-signature" (263 bytes)