linux-kernel - [mm] 87b1c39af4: nvml.blk_rw_mt_TEST0_check_pmem

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Date:   Thu, 8 Apr 2021 13:12:42 +0800
From:   kernel test robot <oliver.sang@...el.com>
To:     Michel Lespinasse <michel@...pinasse.org>
Cc:     0day robot <lkp@...el.com>, LKML <linux-kernel@...r.kernel.org>,
        lkp@...ts.01.org, Linux-MM <linux-mm@...ck.org>,
        Laurent Dufour <ldufour@...ux.ibm.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Michal Hocko <mhocko@...e.com>,
        Matthew Wilcox <willy@...radead.org>,
        Rik van Riel <riel@...riel.com>,
        Paul McKenney <paulmck@...nel.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Suren Baghdasaryan <surenb@...gle.com>,
        Joel Fernandes <joelaf@...gle.com>,
        Rom Lemarchand <romlem@...gle.com>,
        Michel Lespinasse <michel@...pinasse.org>
Subject: [mm]  87b1c39af4: nvml.blk_rw_mt_TEST0_check_pmem_debug.fail



Greeting,

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

commit: 87b1c39af431a20ab69bdceb9036360cf58a28e4 ("[RFC PATCH 23/37] mm: rcu safe vma->vm_file freeing")
url: https://github.com/0day-ci/linux/commits/Michel-Lespinasse/Speculative-page-faults/20210407-095517
base: https://git.kernel.org/cgit/linux/kernel/git/tip/tip.git a500fc918f7b8dc3dff2e6c74f3e73e856c18248

in testcase: nvml
version: nvml-x86_64-09f75f696-1_20210402
with following parameters:

	test: pmem
	group: blk
	nr_pmem: 1
	fs: ext4
	mount_option: dax
	bp_memmap: 32G!4G
	ucode: 0x7000019



on test machine: 16 threads Intel(R) Xeon(R) CPU D-1541 @ 2.10GHz with 48G 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>


2021-04-07 16:01:30 ./RUNTESTS -f pmem blk_rw_mt
blk_rw_mt/TEST0: SETUP (check/pmem/debug)
[MATCHING FAILED, COMPLETE FILE (out0.log) BELOW]
blk_rw_mt/TEST0: START: blk_rw_mt
 ./blk_rw_mt 4096 /fs/pmem0//test_blk_rw_mt0😘⠏⠍⠙⠅ɗPMDKӜ⥺🙋/testfile1 123 5 80
4096 block size 4096 usable blocks 100
/fs/pmem0//test_blk_rw_mt0😘⠏⠍⠙⠅ɗPMDKӜ⥺🙋/testfile1: pmemblk_check: Resource temporarily unavailable
blk_rw_mt/TEST0: DONE

[EOF]
out0.log.match:1   blk_rw_mt$(nW)TEST0: START: blk_rw_mt
out0.log:1         blk_rw_mt/TEST0: START: blk_rw_mt
out0.log.match:2    $(nW)blk_rw_mt$(nW) 4096 $(nW)testfile1 123 5 80
out0.log:2          ./blk_rw_mt 4096 /fs/pmem0//test_blk_rw_mt0😘⠏⠍⠙⠅ɗPMDKӜ⥺🙋/testfile1 123 5 80
out0.log.match:3   4096 block size 4096 usable blocks 100
out0.log:3         4096 block size 4096 usable blocks 100
out0.log.match:4   blk_rw_mt$(nW)TEST0: DONE
out0.log:4         /fs/pmem0//test_blk_rw_mt0😘⠏⠍⠙⠅ɗPMDKӜ⥺🙋/testfile1: pmemblk_check: Resource temporarily unavailable
FAIL: match: out0.log.match:4 did not match pattern
RUNTESTS: stopping: blk_rw_mt/TEST0 failed, TEST=check FS=pmem BUILD=debug


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
        bin/lkp run                    compatible-job.yaml



---
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-rc2-00042-g87b1c39af431" of type "text/plain" (172931 bytes)

View attachment "job-script" of type "text/plain" (5940 bytes)

Download attachment "kmsg.xz" of type "application/x-xz" (29936 bytes)

View attachment "job.yaml" of type "text/plain" (4869 bytes)

View attachment "reproduce" of type "text/plain" (2237 bytes)

Download attachment "nvml.xz" of type "application/x-xz" (46088 bytes)