7 Aug
2013
7 Aug
'13
12:05 a.m.
On Tue, Jul 30, 2013 at 6:41 PM, Peter Zijlstra peterz@infradead.org wrote:
On Tue, Jul 30, 2013 at 10:13:41AM +0200, Maarten Lankhorst wrote:
The check needs to be for > 1, because ctx->acquired is already incremented. This will prevent ww_mutex_lock_slow from returning -EDEADLK and not locking the mutex. It caused a lot of false gpu lockups on radeon with CONFIG_DEBUG_WW_MUTEX_SLOWPATH=y because a function that shouldn't be able to return -EDEADLK did.
Cc: Alex Deucher alexander.deucher@amd.com Signed-off-by: Maarten Lankhorst maarten.lankhorst@canonical.com
Should this be merged via Ingo? or will I queue it in my -fixes?
Dave.