On Wednesday 25 October 2006 17:59, Jeff Dike wrote:
> On Tue, Oct 24, 2006 at 01:01:00PM +0200, Damon LaCrosse wrote:
> > On certain situations where printk are embedded in spinlock protected
> > regions (i.e. "spin_lock(); for () { printk(); } spin_unlock(); }") I
> > often experience uml lockups like this one:
>
> Yeah, known bug. We are using spinlocks improperly in the console
> subsystem.
Disable spinlock debugging and this bug will not show up; disabling these two
ones is sufficient:
CONFIG_DEBUG_SPINLOCK=y
CONFIG_DEBUG_SPINLOCK_SLEEP=y
I'm fighting this one very actively and having interesting results (not all
misuses have been fixed and patches are not yet perfect, but it'll work well
soon I hope).
--
Inform me of my mistakes, so I can keep imitating Homer Simpson's "Doh!".
Paolo Giarrusso, aka Blaisorblade
http://www.user-mode-linux.org/~blaisorblade
Chiacchiera con i tuoi amici in tempo reale!
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