From: Arnd Bergmann <arnd@arndb.de>
To: Olaf Hering <olaf@aepfle.de>
Cc: linux-kernel@vger.kernel.org
Subject: Re: acquire_console_mutex: WARNING: at 2.6.33.4-rt20/kernel/mutex-debug.c:65 mutex_remove_waiter+0xe8/0x11c()
Date: Mon, 31 May 2010 13:29:07 +0200 [thread overview]
Message-ID: <201005311329.07182.arnd@arndb.de> (raw)
In-Reply-To: <20100530213902.GA3619@aepfle.de>
On Sunday 30 May 2010, Olaf Hering wrote:
> > You could try to pull in the blk/tty branch from
> > http://git.kernel.org/?p=linux/kernel/git/arnd/playground.git and enable
> > CONFIG_TTY_MUTEX to see if that gives you better lockdep output,
> > because that replaces the implicit dropping of the BKL with mutex operations
> > that lockdep is aware of.
>
> CONFIG_TTY_MUTEX depends on SMP and this ARM system does not support
> CONFIG_SMP, its hidden by Kconfig dependencies.
>
Ah right, sorry about that.
It should be
depends on SMP || PREEMPT
Arnd
next prev parent reply other threads:[~2010-05-31 11:29 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-05-24 22:53 acquire_console_mutex: WARNING: at 2.6.33.4-rt20/kernel/mutex-debug.c:65 mutex_remove_waiter+0xe8/0x11c() Olaf Hering
2010-05-25 11:18 ` Arnd Bergmann
2010-05-30 21:39 ` Olaf Hering
2010-05-31 11:29 ` Arnd Bergmann [this message]
2010-06-02 9:13 ` Olaf Hering
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