From: Johannes Berg <johannes@sipsolutions.net>
To: Ben Greear <greearb@candelatech.com>
Cc: "Luis R. Rodriguez" <mcgrof@gmail.com>,
"linux-wireless@vger.kernel.org" <linux-wireless@vger.kernel.org>
Subject: Re: memory clobber in rx path, maybe related to ath9k.
Date: Thu, 07 Oct 2010 21:27:22 +0200 [thread overview]
Message-ID: <1286479642.20974.32.camel@jlt3.sipsolutions.net> (raw)
In-Reply-To: <4CAE1DFB.303@candelatech.com>
On Thu, 2010-10-07 at 12:22 -0700, Ben Greear wrote:
> After reboot, and re-run of the script,
> I saw this in the logs, and shortly after,
> the SLUB poison warning dumped to screen.
>
> Maybe those DMA errors are serious?
> ath: Failed to stop TX DMA in 100 msec after killing last frame
> ath: Failed to stop TX DMA. Resetting hardware!
That's TX DMA, it can hardly result in invalid memory writes like the
ones you've been seeing.
I'm still convinced something is wrong with ath9k RX DMA, as you've seen
the contents of frames written to already freed memory regions. Since I
don't know anything about ath9k, you should probably not rely on me
though :-)
johannes
next prev parent reply other threads:[~2010-10-07 19:27 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
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 [this message]
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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