From: Artur Skawina <art.08.09@gmail.com>
To: Christian Lamparter <chunkeey@web.de>
Cc: Johannes Berg <johannes@sipsolutions.net>,
Larry Finger <Larry.Finger@lwfinger.net>,
linux-wireless@vger.kernel.org
Subject: Re: wireless-testing, p54 and sinus 154 data no longer works
Date: Mon, 19 Jan 2009 19:15:09 +0100 [thread overview]
Message-ID: <4974C32D.4030802@gmail.com> (raw)
In-Reply-To: <200901190126.58392.chunkeey@web.de>
Christian Lamparter wrote:
> On Monday 19 January 2009 00:27:02 Artur Skawina wrote:
>> Artur Skawina wrote:
>>> didn't trigger anything here, just the usual:
>>>
>>> BUG kmalloc-4096: Poison overwritten
>> This is almost 100% reproducible; sometimes the machine freezes instead.
Here's an interesting sequence:
1) a TX urb is submitted.
2) p54u_rx_cb() => p54_rx_frame_sent(), which does kfree_skb( the_skb_in_(1) ).
3) p54u_tx_cb() for (1) is called with the same, now freed, skb. kaboom.
IOW the skb is freed before the usb completion runs.
Somehow i don't think this is the reason for the corruption, but it certainly
seems to be responsible for some, if not all, of the crashes/panics.
artur
next prev parent reply other threads:[~2009-01-19 18:15 UTC|newest]
Thread overview: 47+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-12-15 17:49 wireless-testing, p54 and sinus 154 data no longer works Artur Skawina
2008-12-15 18:41 ` Larry Finger
2008-12-15 19:43 ` Christian Lamparter
2008-12-15 20:20 ` Artur Skawina
2008-12-15 23:03 ` Artur Skawina
2008-12-15 23:24 ` Christian Lamparter
[not found] ` <49477A2A.7030406@gmail.com>
[not found] ` <200812161415.09365.chunkeey@web.de>
2008-12-16 13:49 ` Artur Skawina
2008-12-16 14:10 ` Christian Lamparter
2009-01-12 17:09 ` Artur Skawina
2009-01-13 13:49 ` Christian Lamparter
2009-01-13 16:45 ` Artur Skawina
2009-01-13 18:06 ` Christian Lamparter
2009-01-13 19:02 ` Artur Skawina
2009-01-13 21:39 ` Artur Skawina
2009-01-13 22:31 ` Artur Skawina
2009-01-15 17:55 ` Artur Skawina
2009-01-15 18:53 ` Christian Lamparter
2009-01-15 19:12 ` Artur Skawina
2009-01-15 19:42 ` Christian Lamparter
2009-01-15 20:06 ` Artur Skawina
2009-01-15 22:41 ` Christian Lamparter
2009-01-15 23:59 ` Artur Skawina
2009-01-16 3:18 ` Larry Finger
2009-01-16 3:31 ` Artur Skawina
2009-01-16 9:13 ` Johannes Berg
2009-01-16 20:38 ` Christian Lamparter
2009-01-16 22:10 ` Artur Skawina
2009-01-16 22:52 ` Christian Lamparter
2009-01-16 23:46 ` Artur Skawina
2009-01-18 23:27 ` Artur Skawina
2009-01-19 0:26 ` Christian Lamparter
2009-01-19 1:17 ` Artur Skawina
2009-01-19 18:15 ` Artur Skawina [this message]
2009-01-19 18:48 ` Christian Lamparter
2009-01-19 21:53 ` Artur Skawina
2009-01-19 22:38 ` Christian Lamparter
2009-01-19 22:54 ` Artur Skawina
2009-01-19 23:17 ` Artur Skawina
2009-01-19 23:32 ` Christian Lamparter
2009-01-20 20:18 ` Artur Skawina
2009-01-20 20:50 ` Christian Lamparter
2009-01-20 21:18 ` Artur Skawina
2009-01-19 18:52 ` Artur Skawina
2009-01-15 20:07 ` [PATCH] p54: set_tim must be atomic Artur Skawina
2009-01-15 18:56 ` wireless-testing, p54 and sinus 154 data no longer works Artur Skawina
2009-01-13 22:47 ` Christian Lamparter
2009-01-13 19:59 ` Larry Finger
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