From: Tejun Heo <tj@kernel.org>
To: Ben Greear <greearb@candelatech.com>
Cc: Johannes Berg <johannes@sipsolutions.net>,
linux-wireless@vger.kernel.org
Subject: Re: [PATCH] mac80211: Fix deadlock in ieee80211_do_stop.
Date: Thu, 18 Nov 2010 19:04:27 +0100 [thread overview]
Message-ID: <4CE56AAB.7080507@kernel.org> (raw)
In-Reply-To: <4CE56892.9090606@candelatech.com>
Hello, Ben.
On 11/18/2010 06:55 PM, Ben Greear wrote:
> I understand your desire for a stack dump, but it appears that sysrq-t
> isn't getting everything you want, for whatever reason.
Can you please try again and investigate why it's not working? If
task dump is not working as expected, there is a much more serious
problem than wireless locking up.
> Does my explanation of the rtnl deadlock that I posted near the beginning
> of this thread (with some backtraces to back that up) make sense, or
> are my assumptions invalid?
Yes, it makes sense. At this point, I'm fairly sure that something is
holding the workqueue but I really can't tell anything without proper
stack dump.
Thanks.
--
tejun
next prev parent reply other threads:[~2010-11-18 18:04 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-11-12 20:07 [PATCH] mac80211: Fix deadlock in ieee80211_do_stop greearb
2010-11-12 20:08 ` Luis R. Rodriguez
2010-11-12 20:16 ` Ben Greear
2010-11-12 20:49 ` Johannes Berg
2010-11-12 20:57 ` Ben Greear
2010-11-12 21:08 ` Johannes Berg
2010-11-12 21:51 ` Ben Greear
2010-11-13 10:34 ` Tejun Heo
2010-11-15 21:16 ` Ben Greear
2010-11-16 14:19 ` Tejun Heo
2010-11-16 16:51 ` Ben Greear
2010-11-17 8:55 ` Tejun Heo
2010-11-17 17:37 ` Ben Greear
2010-11-16 17:40 ` Johannes Berg
2010-11-17 8:47 ` Tejun Heo
2010-11-17 18:53 ` Johannes Berg
2010-11-17 18:59 ` Ben Greear
2010-11-17 19:03 ` Johannes Berg
2010-11-18 6:34 ` Tejun Heo
2010-11-18 7:07 ` Johannes Berg
2010-11-18 7:22 ` Tejun Heo
2010-11-18 16:59 ` Johannes Berg
2010-11-19 14:34 ` Tejun Heo
2010-11-19 17:57 ` Johannes Berg
2010-11-19 20:55 ` Ben Greear
2010-11-19 22:27 ` Luis R. Rodriguez
2010-12-08 17:36 ` Ben Greear
2010-12-08 18:19 ` Ben Greear
2010-12-08 18:28 ` Ben Greear
2010-12-09 14:34 ` Tejun Heo
2010-12-09 14:42 ` Johannes Berg
2010-12-09 14:46 ` Tejun Heo
2010-12-09 16:17 ` Tejun Heo
[not found] ` <4D0156F6.4000306@candelate ch.com>
2010-12-09 17:27 ` Ben Greear
2010-12-09 22:23 ` Ben Greear
2010-12-10 15:11 ` Tejun Heo
2010-12-10 16:35 ` Ben Greear
2010-11-18 17:55 ` Ben Greear
2010-11-18 18:04 ` Tejun Heo [this message]
2010-11-18 18:11 ` Ben Greear
2010-11-17 20:13 ` Ben Greear
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