linux-kernel - [drm/i915] 26b145b982: assertion

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Message-ID: <20220129080020.GE27169@xsang-OptiPlex-9020>
Date:   Sat, 29 Jan 2022 16:00:20 +0800
From:   kernel test robot <oliver.sang@...el.com>
To:     Christian König 
        <ckoenig.leichtzumerken@...il.com>
Cc:     0day robot <lkp@...el.com>,
        Christian König <christian.koenig@....com>,
        LKML <linux-kernel@...r.kernel.org>, lkp@...ts.01.org,
        thomas.hellstrom@...ux.intel.com, sumit.semwal@...aro.org,
        gustavo@...ovan.org, daniel.vetter@...ll.ch,
        linux-media@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        linaro-mm-sig@...ts.linaro.org
Subject: [drm/i915]  26b145b982: assertion_failure



Greeting,

FYI, we noticed the following commit (built with gcc-9):

commit: 26b145b982ff9178951aab5849a2e2b716527865 ("[PATCH 8/9] drm/i915: use dma_fence extractor functions")
url: https://github.com/0day-ci/linux/commits/Christian-K-nig/dma-buf-consolidate-dma_fence-subclass-checking/20220124-154125
base: git://anongit.freedesktop.org/drm/drm drm-next
patch link: https://lore.kernel.org/linux-media/20220124074046.4865-8-christian.koenig@amd.com

in testcase: igt
version: igt-x86_64-0d559158-1_20220115
with following parameters:

	group: group-15
	ucode: 0xc2



on test machine: 20 threads 1 sockets Commet Lake with 16G memory

caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace):



If you fix the issue, kindly add following tag
Reported-by: kernel test robot <oliver.sang@...el.com>



[   49.300827][  T504] 2022-01-28 04:51:06 build/tests/gem_exec_balancer --run-subtest busy
[   49.300832][  T504]
[   49.330242][ T1415] Console: switching to colour dummy device 80x25
[   49.336613][ T1415] [IGT] gem_exec_balancer: executing
[   49.344946][  T504] IGT-Version: 1.26-gae2eb9e1 (x86_64) (Linux: 5.16.0-rc5-01357-g26b145b982ff x86_64)
[   49.344951][  T504]
[   49.345071][ T1415] [IGT] gem_exec_balancer: starting subtest busy
[   49.363800][  T504] Starting subtest: busy
[   49.363828][  T504]
[   49.383443][  T504] (gem_exec_balancer:1415) CRITICAL: Test assertion failure function busy, file ../tests/i915/gem_exec_balancer.c:1608:
[   49.383448][  T504]
[   49.399169][  T504] (gem_exec_balancer:1415) CRITICAL: Failed assertion: busy.busy == 1u << (class + 16)
[   49.399173][  T504]
[   49.411607][  T504] (gem_exec_balancer:1415) CRITICAL: error: 0 != 0x10000
[   49.411611][  T504]
[   49.421006][  T504] Subtest busy failed.
[   49.421009][  T504]
[   49.427399][  T504] **** DEBUG ****
[   49.427408][  T504]
[   49.434150][  T504] (gem_exec_balancer:1415) igt_dummyload-DEBUG: Test requirement passed: nengine
[   49.434154][  T504]
[   49.446379][  T504] (gem_exec_balancer:1415) igt_dummyload-DEBUG: Test requirement passed: nengine
[   49.446383][  T504]
[   49.459151][  T504] (gem_exec_balancer:1415) CRITICAL: Test assertion failure function busy, file ../tests/i915/gem_exec_balancer.c:1608:
[   49.459155][  T504]
[   49.474854][  T504] (gem_exec_balancer:1415) CRITICAL: Failed assertion: busy.busy == 1u << (class + 16)
[   49.474858][  T504]
[   49.487273][  T504] (gem_exec_balancer:1415) CRITICAL: error: 0 != 0x10000
[   49.487277][  T504]
[   49.497084][  T504] (gem_exec_balancer:1415) igt_core-INFO: Stack trace:
[   49.497088][  T504]
[   49.507226][  T504] (gem_exec_balancer:1415) igt_core-INFO:   #0 ../lib/igt_core.c:1752 __igt_fail_assert()
[   49.507230][  T504]
[   49.520808][  T504] (gem_exec_balancer:1415) igt_core-INFO:   #1 ../tests/i915/gem_exec_balancer.c:1607 __igt_unique____real_main3276()
[   49.520812][  T504]
[   49.536465][  T504] (gem_exec_balancer:1415) igt_core-INFO:   #2 ../tests/i915/gem_exec_balancer.c:3276 main()
[   49.536470][  T504]
[   49.549683][  T504] (gem_exec_balancer:1415) igt_core-INFO:   #3 [__libc_start_main+0xeb]
[   49.549686][  T504]
[   49.560901][  T504] (gem_exec_balancer:1415) igt_core-INFO:   #4 [_start+0x2a]
[   49.560905][  T504]
[   49.570571][  T504] ****  END  ****


To reproduce:

        git clone https://github.com/intel/lkp-tests.git
        cd lkp-tests
        sudo bin/lkp install job.yaml           # job file is attached in this email
        bin/lkp split-job --compatible job.yaml # generate the yaml file for lkp run
        sudo bin/lkp run generated-yaml-file

        # if come across any failure that blocks the test,
        # please remove ~/.lkp and /lkp dir to run from a clean state.



---
0DAY/LKP+ Test Infrastructure                   Open Source Technology Center
https://lists.01.org/hyperkitty/list/lkp@lists.01.org       Intel Corporation

Thanks,
Oliver Sang


View attachment "config-5.16.0-rc5-01357-g26b145b982ff" of type "text/plain" (177739 bytes)

View attachment "job-script" of type "text/plain" (5259 bytes)

Download attachment "dmesg.xz" of type "application/x-xz" (70236 bytes)

View attachment "igt" of type "text/plain" (336302 bytes)

View attachment "job.yaml" of type "text/plain" (4191 bytes)

View attachment "reproduce" of type "text/plain" (45543 bytes)