On Thursday 05 February 2009, Rafael J. Wysocki wrote:

On Wednesday 04 February 2009, Andrea Righi wrote:

quoted

Fix this circular locking dependencies in the frame buffer console
driver pushing down the mutex fb_info->lock.

Circular locking dependecies occur calling the blocking
fb_notifier_call_chain() with fb_info->lock held. Notifier callbacks can
try to acquire mm->mmap_sem, while fb_mmap() acquires the locks in the
reverse order mm->mmap_sem => fb_info->lock.

Does this fix a Bugzilla bug?  If so, then which one?

Never mind, found it.

Thanks,
Rafael