On Tue, Dec 10, 2013 at 01:24:01PM +0100, Daniel Vetter wrote: > The update is horribly racy since it doesn't protect at all against > concurrent closing of the master fd. And it can't really since that > requires us to grab a mutex. > > Instead of jumping through hoops and offloading this to a worker > thread just block this bit of code for the modesetting driver. > > Reported-by: Eugene Shatokhin <eugene.shatokhin@xxxxxxxxxx> > Cc: Eugene Shatokhin <eugene.shatokhin@xxxxxxxxxx> > Cc: stable@xxxxxxxxxxxxxxx > Signed-off-by: Daniel Vetter <daniel.vetter@xxxxxxxx> We should also not be calling update_dri1_breadcrumb unless we have a USER_INTERRUPT. The other updates to the breadcrumb hws index do not appear to be serialised by anything other than polling. -Chris -- Chris Wilson, Intel Open Source Technology Centre _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx
