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From: Ingo Molnar <mingo@elte.hu>
To: Kyle McMartin <kyle@mcmartin.ca>
Cc: linux-kernel@vger.kernel.org, tglx@linutronix.de,
	mingo@redhat.com, Rusty Russell <rusty@rustcorp.com.au>,
	Andrew Morton <akpm@linux-foundation.org>
Subject: Re: [PATCH] call sysrq_timer_list_show from a workqueue
Date: Tue, 8 Jan 2008 10:17:42 +0100	[thread overview]
Message-ID: <20080108091742.GD27671@elte.hu> (raw)
In-Reply-To: <20080108063113.GA21287@fattire.cabal.ca>


(Rusty Cc:-ed)

* Kyle McMartin <kyle@mcmartin.ca> wrote:

> handle_sysrq can be called from interrupt context. 
> sysrq_timer_list_show eventually starts poking at module symbols which 
> take the module mutex.
> 
> so instead, let's just kick off a workqueue.
> 
> [ doesn't happen on my laptop with the keyboard, but does when
>   triggered from /proc/sysrq-trigger ]

hmmm. This really shouldnt be happening - how come we hit the module 
mutex on simple things like symbol lookups?

	Ingo

  reply	other threads:[~2008-01-08  9:18 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-01-08  6:31 Kyle McMartin
2008-01-08  9:17 ` Ingo Molnar [this message]
2008-01-08 11:28   ` Rusty Russell
2008-01-08 11:33     ` Ingo Molnar
2008-01-08 11:50       ` Rusty Russell
2008-01-08 15:51         ` Ingo Molnar
2008-01-08 22:48           ` Rusty Russell
2008-01-08 22:52             ` Ingo Molnar
2008-01-09  0:21         ` Andrew Morton
2008-01-09  3:20           ` Rusty Russell
2008-01-09  3:33             ` Andrew Morton
2008-01-09  4:27               ` Rusty Russell
2008-01-09  4:45                 ` Andrew Morton
2008-01-09 15:24             ` Paulo Marques
2008-01-09 21:58               ` Rusty Russell
2008-01-08 14:41     ` Kyle McMartin

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