Re: [PATCH i-g-t v6 00/24] tests/core_hotunplug: Fixes and enhancements

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Quoting Janusz Krzysztofik (2020-09-11 12:30:15)
> Clean up the test code, add some new basic subtests, then unblock
> unbind test variants.
> 
> No incompletes / aborts nor subsequently run test issues have been
> reported by Trybot.  The hotrebind-lateclose subtest fails on a so far
> unidentified driver sysfs issue but the device is fully recovered and
> left in a usable state.  Perceived Haswell/Broadwell issue with audio
> power management has been worked around and its potential occurrence
> is reported as an IGT warning.
> 
> Series changelog:
> v2: New patch "Un-blocklist *bind* subtests added.
> v3: Patch "Follow failed subtests with healthcheck" renamed to "Recover
>     from subtest failures".
>   - a new patche "Clean up device open error handling" added, an old
>     patch "Fix missing newline" obsoleted by the new one dropped,
>   - other new patches added:
>     - "Let the driver time out essential sysfs operations",
>     - "More thorough i915 healthcheck and recovery",
>   - a patch "Add 'lateclose before restore' variants" from another
>     series included.
> v4: Optional patch "Duplicate debug messages in dmesg" from another
>     series included.
> v5: New patch added with Haswell audio related kernel warning worked
>     around and replaced with an IGT warning to preserve visibility of
>     the issue.
> v6: New patch added for also checking health of render device nodes,
>   - new patch added with proper handling of health check before late
>     close,
>   - inclusion of unbind-rebind scenario to BAT scope proposed.
> 
> @Michał: Since some patch updates are trivial, I've preserved your
> v1/v2 Reviewd-by: except for patches with non-trivial changes, where I
> marked your R-b as v1/v2 applicable.  Please have a look and confirm if
> you are still OK with them.

Feel free to add:
Reviewed-by: Michał Winiarski <michal.winiarski@xxxxxxxxx>

For the whole series (with the exception of intel-ci part).

-Michał

> 
> @Tvrtko: As I already asked before, please support my attempt to remove
> the unbind test variants from the blocklist.
> 
> @Petri, @Martin: Assuming CI results will be as good as those obtained
> on Trybot, please give me your green light for merging this series if
> you have no objections.
> 
> Thanks,
> Janusz
> 
> Janusz Krzysztofik (24):
>   tests/core_hotunplug: Use igt_assert_fd()
>   tests/core_hotunplug: Constify dev_bus_addr string
>   tests/core_hotunplug: Clean up device open error handling
>   tests/core_hotunplug: Consolidate duplicated debug messages
>   tests/core_hotunplug: Assert successful device filter application
>   tests/core_hotunplug: Maintain a single data structure instance
>   tests/core_hotunplug: Pass errors via a data structure field
>   tests/core_hotunplug: Handle device close errors
>   tests/core_hotunplug: Prepare invariant data once per test run
>   tests/core_hotunplug: Skip selectively on sysfs close errors
>   tests/core_hotunplug: Recover from subtest failures
>   tests/core_hotunplug: Fail subtests on device close errors
>   tests/core_hotunplug: Let the driver time out essential sysfs
>     operations
>   tests/core_hotunplug: Process return values of sysfs operations
>   tests/core_hotunplug: Assert expected device presence/absence
>   tests/core_hotunplug: Explicitly ignore unused return values
>   tests/core_hotunplug: Also check health of render device node
>   tests/core_hotunplug: More thorough i915 healthcheck and recovery
>   tests/core_hotunplug: Add 'lateclose before restore' variants
>   tests/core_hotunplug: Check health both before and after late close
>   tests/core_hotunplug: HSW/BDW audio issue workaround
>   tests/core_hotunplug: Duplicate debug messages in dmesg
>   tests/core_hotunplug: Un-blocklist *bind* subtests
>   tests/core_hotunplug: Add unbind-rebind subtest to BAT scope
> 
>  tests/core_hotunplug.c                | 560 ++++++++++++++++++++------
>  tests/intel-ci/blacklist.txt          |   2 +-
>  tests/intel-ci/fast-feedback.testlist |   1 +
>  3 files changed, 431 insertions(+), 132 deletions(-)
> 
> -- 
> 2.21.1
> 
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