Hi,

On Fri, Nov 04, 2022 at 05:49:54PM -0700, Ceraolo Spurio, Daniele wrote:
> On 11/4/2022 5:38 PM, Ceraolo Spurio, Daniele wrote:
> > On 11/4/2022 4:26 PM, Brian Norris wrote:
> > > Did you track this down? Or consider reverting? This is tripping me up
> > 
> > No. I didn't manage to repro locally after Tvrtko reported it (I run the
> > full selftest suite twice on both ADL-S and DG2 with the debug config
> > enabled), so I was keeping an eye out as suggested to see if it popped
> > out again. If you can repro this consistently, can you share your setup
> > info? What platform you're running on, if you're using the latest
> > drm-tip, any non-default params you're using, etc. Dmesg would also be
> > useful to see if there are other errors before this one.
> > 
> 
> Just to further clarify, this issue is also not showing up in our CI runs
> (which do have both the DEBUG_OBJECTS kconfigs you pointed out enabled),
> hence why I'm suspecting that this is only happening on specific setups,
> potentially due to a different kconfig or modparam being involved.

Huh, well join the crowd. I'm currently hunting through ways to
reproduce the CI runs, which are complaining about a different patch of
mine...
...and I can't reproduce :)

Anyway, I'm running on a GLK Chromebook. I have to do some minimal
tweaking to get the average ChromeOS setup to work (basically, neuter
the display manager and boot splash, so DRM/drivers can release
cleanly), but then the IGT tools run as normal. Attaching dmesg and
.config.

Test sequence:

  igt-gpu-tools/i915_module_load --run-subtest reload  ## this first one is probably unnecessary
  igt-gpu-tools/gem_exec_gttfill --run-subtest basic
  igt-gpu-tools/i915_module_load --run-subtest reload

I'm running drm-tip, at:

  a397a9098fb3 drm-tip: 2022y-11m-04d-19h-23m-35s UTC integration manifest

I doubt too much of the ChromeOS setup itself is uniquely interesting,
other than perhaps that we run a simple 'frecon' console [1] that I had
to kill first (so, it probably touched/released some buffers).

Brian

[1] https://chromium.googlesource.com/chromiumos/platform/frecon/+/HEAD/README.md