Re: acquire_console_mutex: WARNING: at2.6.33.4-rt20/kernel/mutex-debug.c:65 mutex_remove_waiter+0xe8/0x11c()

[Olaf Hering]

On Mon, May 31, Arnd Bergmann wrote:

> 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.


Arnd,

I do not have access to this ARM board anymore, and other systems I own
do not have hardware for serial console.
So I can not test or debug this further.


Olaf
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