diff options
| author | Chris Wilson <chris@chris-wilson.co.uk> | 2020-05-11 20:27:20 +0100 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2020-05-11 20:29:35 +0100 |
| commit | 726e09870f0b502b60bb1ecd209fc8af209ed378 (patch) | |
| tree | 41c260c3c61f067f0fcb232aee2d0b70ba3d1c9b /tests/i915/gem_ctx_persistence.c | |
| parent | 22d0955e019020f9ecda4124707801214e279a0c (diff) | |
i915/gem_ctx_persistence: Add a small delayed for RCU'ed fd
Add a small delay before we wait on the rcu barrier to allow slower
machines to flush the process tables first.
Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/1528
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Acked-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Diffstat (limited to 'tests/i915/gem_ctx_persistence.c')
| -rw-r--r-- | tests/i915/gem_ctx_persistence.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/tests/i915/gem_ctx_persistence.c b/tests/i915/gem_ctx_persistence.c index 67bce69a..ce9f0235 100644 --- a/tests/i915/gem_ctx_persistence.c +++ b/tests/i915/gem_ctx_persistence.c @@ -109,7 +109,10 @@ static void enable_hangcheck(int i915) static void flush_delayed_fput(int i915) { + rcu_barrier(i915); + usleep(50 * 1000); rcu_barrier(i915); /* flush the delayed fput */ + sched_yield(); rcu_barrier(i915); /* again, in case it was added after we waited! */ } |