linux-kernel - [linus:master] [i915] f683b9d613: igt.gem_userptr

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Message-ID: <202210241246.68be2f11-oliver.sang@intel.com>
Date:   Mon, 24 Oct 2022 13:05:25 +0800
From:   kernel test robot <oliver.sang@...el.com>
To:     Matthew Wilcox <willy@...radead.org>
CC:     <lkp@...ts.01.org>, <lkp@...el.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        "Liam R. Howlett" <Liam.Howlett@...cle.com>,
        Vlastimil Babka <vbabka@...e.cz>, Yu Zhao <yuzhao@...gle.com>,
        "Catalin Marinas" <catalin.marinas@....com>,
        David Hildenbrand <david@...hat.com>,
        David Howells <dhowells@...hat.com>,
        Davidlohr Bueso <dave@...olabs.net>,
        SeongJae Park <sj@...nel.org>,
        Sven Schnelle <svens@...ux.ibm.com>,
        "Will Deacon" <will@...nel.org>, <linux-kernel@...r.kernel.org>,
        <intel-gfx@...ts.freedesktop.org>
Subject: [linus:master] [i915]  f683b9d613: igt.gem_userptr_blits.probe.fail

Greeting,

FYI, we noticed igt.gem_userptr_blits.probe.fail due to commit (built with gcc-11):

commit: f683b9d613193362ceb954c216f663a43c027302 ("i915: use the VMA iterator")
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master

in testcase: igt
version: igt-x86_64-cf55acde-1_20221012
with following parameters:

	group: group-13

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>
| Link: https://lore.kernel.org/r/202210241246.68be2f11-oliver.sang@intel.com

2022-10-24 03:27:39 build/tests/gem_userptr_blits --run-subtest probe
IGT-Version: 1.26-gcf55acde (x86_64) (Linux: 6.0.0-rc3-00280-gf683b9d61319 x86_64)
Aperture size is 268435456 MiB
Total RAM is 13505 MiB
Not enough RAM to run test, reducing buffer count.
Test requirement not met in function __igt_unique____real_main2320, file ../tests/i915/gem_userptr_blits.c:2401:
Test requirement: has_userptr(fd)
Starting subtest: probe
(gem_userptr_blits:1984) CRITICAL: Test assertion failure function test_probe, file ../tests/i915/gem_userptr_blits.c:2231:
(gem_userptr_blits:1984) CRITICAL: Failed assertion: __gem_userptr(fd, ptr + 4096, 3*4096, 0, 0x2, &handle) == expected
(gem_userptr_blits:1984) CRITICAL: Last errno: 14, Bad address
(gem_userptr_blits:1984) CRITICAL: error: 0 != -14
Subtest probe failed.
**** DEBUG ****
(gem_userptr_blits:1984) DEBUG: Test requirement passed: has_userptr_probe(fd)
(gem_userptr_blits:1984) CRITICAL: Test assertion failure function test_probe, file ../tests/i915/gem_userptr_blits.c:2231:
(gem_userptr_blits:1984) CRITICAL: Failed assertion: __gem_userptr(fd, ptr + 4096, 3*4096, 0, 0x2, &handle) == expected
(gem_userptr_blits:1984) CRITICAL: Last errno: 14, Bad address
(gem_userptr_blits:1984) CRITICAL: error: 0 != -14
(gem_userptr_blits:1984) igt_core-INFO: Stack trace:
(gem_userptr_blits:1984) igt_core-INFO:   #0 [__igt_fail_assert+0x106]
(gem_userptr_blits:1984) igt_core-INFO:   #1 ../tests/i915/gem_userptr_blits.c:801 __igt_unique____real_main2320()
(gem_userptr_blits:1984) igt_core-INFO:   #2 ../tests/i915/gem_userptr_blits.c:2320 main()
(gem_userptr_blits:1984) igt_core-INFO:   #3 ../csu/libc-start.c:308 __libc_start_main()
(gem_userptr_blits:1984) igt_core-INFO:   #4 [_start+0x2a]
****  END  ****
Stack trace:
  #0 [__igt_fail_assert+0x106]
  #1 ../tests/i915/gem_userptr_blits.c:801 __igt_unique____real_main2320()
  #2 ../tests/i915/gem_userptr_blits.c:2320 main()
  #3 ../csu/libc-start.c:308 __libc_start_main()
  #4 [_start+0x2a]
Subtest probe: FAIL (0.052s)

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.

-- 
0-DAY CI Kernel Test Service
https://01.org/lkp

View attachment "config-6.0.0-rc3-00280-gf683b9d61319" of type "text/plain" (168412 bytes)

View attachment "job-script" of type "text/plain" (5058 bytes)

Download attachment "dmesg.xz" of type "application/x-xz" (47468 bytes)

View attachment "igt" of type "text/plain" (109034 bytes)

View attachment "job.yaml" of type "text/plain" (4235 bytes)

View attachment "reproduce" of type "text/plain" (13920 bytes)