On Sat, 11 Apr 2009 00:05:22 +0200 Andrea Righi <righi.andrea@xxxxxxxxx> wrote: > > mmmh... I may have missed something, but the common fb_mmap() should > acquire mm->mmap_sem and then info->lock, while fb_ioctl() can do that > in reverse order (info->lock first and then mm->mmap_sem) causing the > circular locking dependency. Are you sure that pushing info->lock down > each driver's fb_mmap will fix the problem? Right. The fb_mmap is called with the mmap_sem already held. I will try other possibilities like breaking info->lock() into two mutexex. Something should be done to solve this problem. Best regards, Krzysztof ---------------------------------------------------------------------- Oblej swoich znajomych... wirtualnie! ;) http://link.interia.pl/f2119 _______________________________________________ linux-pm mailing list linux-pm@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/linux-pm
