linux-kernel - [drm/i915] 0edbb9ba1b: assertion

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Date:   Wed, 30 Jun 2021 13:25:51 +0800
From:   kernel test robot <oliver.sang@...el.com>
To:     Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>
Cc:     Daniel Vetter <daniel.vetter@...ll.ch>,
        Thomas Hellström 
        <thomas.hellstrom@...ux.intel.com>,
        LKML <linux-kernel@...r.kernel.org>, lkp@...ts.01.org,
        lkp@...el.com
Subject: [drm/i915]  0edbb9ba1b: assertion_failure



Greeting,

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

commit: 0edbb9ba1bfe70b38850d4a712e83487525f0640 ("drm/i915: Move cmd parser pinning to execbuffer")
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master


in testcase: igt
version: igt-x86_64-e230cd8d-1_20210106
with following parameters:

	group: group-24
	ucode: 0xe2



on test machine: 8 threads Intel(R) Core(TM) i7-6700 CPU @ 3.40GHz with 28G 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>



user  :notice: [   72.926722] IGT-Version: 1.26-gfdff4bba (x86_64) (Linux: 5.12.0-rc3-00374-g0edbb9ba1bfe x86_64)

user  :notice: [   72.941606] Starting subtest: bb-large

user  :info  : [   73.131412] [IGT] gen9_exec_parse: exiting, ret=98
user  :notice: [   73.131592] (gen9_exec_parse:2032) CRITICAL: Test assertion failure function test_bb_large, file ../tests/i915/gen9_exec_parse.c:600:

user  :notice: [   73.151362] (gen9_exec_parse:2032) CRITICAL: Failed assertion: __checked_execbuf(i915, &execbuf) == 0

user  :notice: [   73.163047] (gen9_exec_parse:2032) CRITICAL: error: -12 != 0



To reproduce:

        git clone https://github.com/intel/lkp-tests.git
        cd lkp-tests
        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
        bin/lkp run                    generated-yaml-file



---
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-5.12.0-rc3-00374-g0edbb9ba1bfe" of type "text/plain" (172861 bytes)

View attachment "job-script" of type "text/plain" (5189 bytes)

Download attachment "kmsg.xz" of type "application/x-xz" (91264 bytes)

View attachment "igt" of type "text/plain" (613307 bytes)

View attachment "job.yaml" of type "text/plain" (4295 bytes)

View attachment "reproduce" of type "text/plain" (34349 bytes)