linux-kernel - [block] 5ff9f19231: blktests.block.009.fail

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Date:   Sun, 2 Aug 2020 14:02:04 +0800
From:   kernel test robot <rong.a.chen@...el.com>
To:     Christoph Hellwig <hch@....de>
Cc:     Jens Axboe <axboe@...nel.dk>, LKML <linux-kernel@...r.kernel.org>,
        lkp@...ts.01.org
Subject: [block] 5ff9f19231: blktests.block.009.fail

Greeting,

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

commit: 5ff9f19231a0e670b3d79c563f1b0b185abeca91 ("block: simplify set_init_blocksize")
https://git.kernel.org/cgit/linux/kernel/git/axboe/linux-block.git for-5.9/block


in testcase: blktests
with following parameters:

	disk: 1HDD
	test: block-group2
	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 <rong.a.chen@...el.com>


2020-08-01 05:32:57 sed "s:^:block/:" /lkp/benchmarks/blktests/tests/block-group2 | grep -F -f merged_ignored_files
block/011 [ignored by lkp]
2020-08-01 05:32:57 sed "s:^:block/:" /lkp/benchmarks/blktests/tests/block-group2 | grep -v -F -f merged_ignored_files
2020-08-01 05:32:57 ./check block/009 block/012 block/013 block/014 block/015 block/016 block/017 block/018 block/019 block/020 block/021 block/022 block/023 block/024 block/025 block/028 block/029 block/030
block/009 (check page-cache coherency after BLKDISCARD)     
block/009 (check page-cache coherency after BLKDISCARD)      [failed]
    runtime  ...  0.618s
    --- tests/block/009.out	2020-07-13 05:13:39.000000000 +0000
    +++ /lkp/benchmarks/blktests/results/nodev/block/009.out.bad	2020-08-01 05:32:58.088950974 +0000
    @@ -1,5 +1,7 @@
     Running block/009
    -0000000 0000 0000 0000 0000 0000 0000 0000 0000
    +0000000 aaaa aaaa aaaa aaaa aaaa aaaa aaaa aaaa
    +*
    +0001000 0000 0000 0000 0000 0000 0000 0000 0000
     *
     2000000
    ...
    (Run 'diff -u tests/block/009.out /lkp/benchmarks/blktests/results/nodev/block/009.out.bad' to see the entire diff)



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 run     job.yaml



Thanks,
Rong Chen


View attachment "config-5.8.0-rc2-00086-g5ff9f19231a0e6" of type "text/plain" (158303 bytes)

View attachment "job-script" of type "text/plain" (6287 bytes)

Download attachment "kmsg.xz" of type "application/x-xz" (29444 bytes)

View attachment "blktests" of type "text/plain" (4935 bytes)

View attachment "job.yaml" of type "text/plain" (5374 bytes)

View attachment "reproduce" of type "text/plain" (384 bytes)