From: Mika Kuoppala <[email protected]> The timer for hangchecking can run again before the previous reset it has triggered has been handled. This can corrupt the hangcheck state as reset handling will access and write to the hangcheck data. To prevent this, avoid running the hangcheck logic while reset is in progress.
Signed-off-by: Mika Kuoppala <[email protected]> Reviewed-by: Ben Widawsky <[email protected]> --- drivers/gpu/drm/i915/i915_irq.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c index dc1b878..b0fec7f 100644 --- a/drivers/gpu/drm/i915/i915_irq.c +++ b/drivers/gpu/drm/i915/i915_irq.c @@ -2447,6 +2447,9 @@ void i915_hangcheck_elapsed(unsigned long data) if (!i915_enable_hangcheck) return; + if (i915_reset_in_progress(&dev_priv->gpu_error)) + return; + for_each_ring(ring, dev_priv, i) { u32 seqno, acthd; bool busy = true; -- 1.7.9.5 _______________________________________________ Intel-gfx mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/intel-gfx
