2022-01-31 23:14:30

by kernel test robot

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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/[email protected]

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 <[email protected]>



[ 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/[email protected] Intel Corporation

Thanks,
Oliver Sang


Attachments:
(No filename) (3.94 kB)
config-5.16.0-rc5-01357-g26b145b982ff (180.44 kB)
job-script (5.27 kB)
dmesg.xz (68.59 kB)
igt (333.80 kB)
job.yaml (4.20 kB)
reproduce (44.98 kB)
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