From: Ben Greear <greearb@candelatech.com>
To: "Luis R. Rodriguez" <mcgrof@gmail.com>
Cc: "linux-wireless@vger.kernel.org" <linux-wireless@vger.kernel.org>
Subject: Re: memory clobber in rx path, maybe related to ath9k.
Date: Tue, 05 Oct 2010 10:24:13 -0700 [thread overview]
Message-ID: <4CAB5F3D.9060201@candelatech.com> (raw)
In-Reply-To: <AANLkTikhGCTS8kJgpDzjudyBTk-rkyXY33UO7kB0+Cc-@mail.gmail.com>
On 10/05/2010 10:16 AM, Luis R. Rodriguez wrote:
> On Tue, Oct 5, 2010 at 10:00 AM, Ben Greear<greearb@candelatech.com> wrote:
>> I started seeing this very soon after creating interfaces.
>
> Can you be more specific how one can reproduce?
Enable SLUB debugging, DEBUG_PAGEALLOC (Debug page memory allocations),
lockdep, pre-empt.
Please try creating a bunch of stations on one ath9k phy, and
configure them to use WPA (we're using one supplicant per STA).
If you don't hit it within 2 minutes of creating STAs and starting
WPA, do let me know and I'll try to come up with something
more specific. But, at least for us, it seems extremely easy to
hit this issue.
The same kernel boots fine with no such errors on a system with ath5k, btw.
I wish there was a way to get slub debugging to print the backtrace for the
code that deleted the memory, but so far, I haven't found anything.
Thanks,
Ben
--
Ben Greear <greearb@candelatech.com>
Candela Technologies Inc http://www.candelatech.com
next prev parent reply other threads:[~2010-10-05 17:24 UTC|newest]
Thread overview: 84+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-10-05 17:00 memory clobber in rx path, maybe related to ath9k Ben Greear
2010-10-05 17:16 ` Luis R. Rodriguez
2010-10-05 17:24 ` Ben Greear [this message]
2010-10-05 17:36 ` Luis R. Rodriguez
2010-10-05 17:38 ` Ben Greear
2010-10-05 17:43 ` Luis R. Rodriguez
2010-10-05 17:47 ` Ben Greear
2010-10-05 17:55 ` Luis R. Rodriguez
2010-10-05 18:14 ` Ben Greear
2010-10-05 21:12 ` Ben Greear
2010-10-07 17:33 ` Ben Greear
2010-10-07 18:14 ` Johannes Berg
2010-10-07 18:29 ` Luis R. Rodriguez
2010-10-07 18:39 ` Ben Greear
2010-10-07 18:42 ` Luis R. Rodriguez
2010-10-07 18:45 ` Ben Greear
2010-10-07 19:14 ` Ben Greear
2010-10-07 19:17 ` Johannes Berg
2010-10-07 19:22 ` Ben Greear
2010-10-07 19:27 ` Johannes Berg
2010-10-07 21:31 ` Luis R. Rodriguez
2010-10-07 21:36 ` Luis R. Rodriguez
2010-10-07 21:59 ` Luis R. Rodriguez
2010-10-11 20:51 ` Ben Greear
2010-10-12 1:03 ` Luis R. Rodriguez
2010-10-12 3:27 ` Ben Greear
2010-10-12 6:10 ` Luis R. Rodriguez
2010-10-12 18:35 ` Ben Greear
2010-10-12 18:40 ` Luis R. Rodriguez
2010-10-12 18:43 ` Ben Greear
2010-10-12 19:51 ` Ben Greear
2010-10-13 17:12 ` Ben Greear
2010-10-13 17:29 ` Luis R. Rodriguez
2010-10-13 17:48 ` Ben Greear
2010-10-14 21:25 ` Luis R. Rodriguez
2010-10-14 21:31 ` Ben Greear
2010-10-14 21:32 ` Luis R. Rodriguez
2010-10-14 21:39 ` Ben Greear
2010-10-14 21:45 ` Johannes Berg
2010-10-14 21:47 ` Ben Greear
2010-10-13 5:31 ` Vasanthakumar Thiagarajan
2010-10-13 16:39 ` Ben Greear
2010-10-13 19:56 ` Björn Smedman
2010-10-13 20:03 ` Luis R. Rodriguez
2010-10-14 19:15 ` Ben Greear
2010-10-14 19:17 ` Luis R. Rodriguez
2010-10-14 21:52 ` Björn Smedman
2010-10-14 22:05 ` Ben Greear
2010-10-14 22:16 ` Luis R. Rodriguez
2010-10-14 22:29 ` Luis R. Rodriguez
2010-10-14 22:35 ` Luis R. Rodriguez
2010-10-14 22:44 ` Ben Greear
2010-10-14 22:54 ` Luis R. Rodriguez
2010-10-14 22:51 ` Luis R. Rodriguez
2010-10-14 23:19 ` Luis R. Rodriguez
2010-10-14 23:30 ` Ben Greear
2010-10-14 23:39 ` Luis R. Rodriguez
2010-10-14 23:48 ` Luis R. Rodriguez
2010-10-15 16:51 ` Ben Greear
2010-10-15 18:47 ` Luis R. Rodriguez
2010-10-15 19:36 ` Ben Greear
2010-10-15 21:07 ` Luis R. Rodriguez
2010-10-15 23:21 ` Luis R. Rodriguez
2010-10-15 23:33 ` Ben Greear
2010-10-15 23:38 ` Luis R. Rodriguez
2010-10-15 23:41 ` Luis R. Rodriguez
2010-10-16 0:07 ` Ben Greear
2010-10-15 23:42 ` Ben Greear
2010-10-15 23:57 ` Luis R. Rodriguez
2010-10-17 19:44 ` Ben Greear
2010-10-18 22:46 ` Luis R. Rodriguez
2010-10-15 23:39 ` Ben Greear
2010-10-14 23:51 ` Ben Greear
2010-10-14 22:47 ` Ben Greear
2010-10-14 23:46 ` Björn Smedman
2010-10-18 13:48 ` Björn Smedman
2010-10-18 17:24 ` Luis R. Rodriguez
2010-10-18 22:34 ` Björn Smedman
2010-10-18 22:41 ` Luis R. Rodriguez
2010-10-14 5:37 ` Vasanthakumar Thiagarajan
2010-10-07 21:52 ` Ben Greear
2010-10-08 0:42 ` Bruno Randolf
2010-10-08 2:30 ` Ben Greear
2010-10-05 17:22 ` Johannes Berg
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