[Bug 107356] [kbl] [drm] GPU hang in Antutu 7.x games with 4.14.52 kernel

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Fri Aug 10 14:00:19 UTC 2018


--- Comment #23 from Ren Chenglei <chenglei.ren at intel.com> ---
(In reply to Tapani Pälli from comment #22)
> (In reply to Ren Chenglei from comment #21)
> > Do we have any progress on this crash issue?
> I haven't been able to figure out the hang. Some observations though .. I've
> disabled EXT_tessellation_shader in the driver, this causes antutu to jump
> over the first test and run rest of the tests and there is no hang. I've
> also tried disabling usage of push constants (hang seems to be related to
> these) but this did not help, hang still occurs. Next thing I'm going to try
> is to dump all shaders from first test and see if I could figure out which
> ones might be related to the hang.

Thanks Tapani for the updates!
I tried following:

diff --git a/src/mesa/drivers/dri/i965/intel_batchbuffer.c
index df999ffeb1d0..325f28b35e60 100644
--- a/src/mesa/drivers/dri/i965/intel_batchbuffer.c
+++ b/src/mesa/drivers/dri/i965/intel_batchbuffer.c
@@ -823,7 +823,7 @@ submit_batch(struct brw_context *brw, int in_fence_fd, int
    if (ret != 0) {
       fprintf(stderr, "i965: Failed to submit batchbuffer: %s\n",
-      exit(1);
+      //exit(1);

    return ret;

If we don't exit, after GPU hang, it will continue the rest test. But the first
part test is still black.

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