linux-kernel - [linus:master] [scsi/sg] fcaa174a9c: blktests.scsi/002.fail

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Date:   Mon, 10 Jul 2023 15:32:14 +0800
From:   kernel test robot <oliver.sang@...el.com>
To:     Yu Kuai <yukuai3@...wei.com>
CC:     <oe-lkp@...ts.linux.dev>, <lkp@...el.com>,
        <linux-kernel@...r.kernel.org>, Jens Axboe <axboe@...nel.dk>,
        Chaitanya Kulkarni <chaitanyak@...dia.com>,
        Christoph Hellwig <hch@....de>, <linux-scsi@...r.kernel.org>,
        <oliver.sang@...el.com>
Subject: [linus:master] [scsi/sg]  fcaa174a9c: blktests.scsi/002.fail


hi, Yu Kuai,

we noticed this commit is to fix "modprobe: FATAL: Module scsi_debug is in use."
issue, and we found it really does this work (below (1)).
we also found after this fix, the failed case on parent (004/005/007) could
pass now.
however, the blktests.scsi/002 start to fail after this change.

a42fb5a75ccc37df fcaa174a9c995cf0af3967e5564
---------------- ---------------------------
       fail:runs  %reproduction    fail:runs
           |             |             |
          6:6         -100%            :6     stderr.modprobe:FATAL:Module_scsi_debug_is_in_use <-- (1)
           :6          100%           6:6     blktests.scsi/002.fail
           :6          100%           6:6     blktests.scsi/004.pass
           :6          100%           6:6     blktests.scsi/005.pass
           :6          100%           6:6     blktests.scsi/007.pass

below is the detail report FYI.


Hello,

kernel test robot noticed "blktests.scsi/002.fail" on:

commit: fcaa174a9c995cf0af3967e55644a1543ea07e36 ("scsi/sg: don't grab scsi host module reference")
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master

[test failed on linus/master 06c2afb862f9da8dc5efa4b6076a0e48c3fbaaa5]
[test failed on linux-next/master 123212f53f3e394c1ae69a58c05dfdda56fec8c6]

in testcase: blktests
version: blktests-x86_64-154e652-1_20230620
with following parameters:

	disk: 1HDD
	test: scsi-group-00



compiler: gcc-12
test machine: 4 threads Intel(R) Core(TM) i5-6500 CPU @ 3.20GHz (Skylake) with 32G memory

(please refer to attached dmesg/kmsg for entire log/backtrace)




If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <oliver.sang@...el.com>
| Closes: https://lore.kernel.org/oe-lkp/202307101556.ea548e4f-oliver.sang@intel.com

2023-07-09 23:41:29 sed "s:^:scsi/:" /lkp/benchmarks/blktests/tests/scsi-group-00
2023-07-09 23:41:30 ./check scsi/001 scsi/002 scsi/004 scsi/005 scsi/006 scsi/007
scsi/001 => sdb1 (try triggering a kernel GPF with 0 byte SG reads)
scsi/001 => sdb1 (try triggering a kernel GPF with 0 byte SG reads) [passed]
    runtime    ...  10.158s
scsi/002 => sdb1 (perfom a SG_DXFER_FROM_DEV from the /dev/sg read-write interface)
scsi/002 => sdb1 (perfom a SG_DXFER_FROM_DEV from the /dev/sg read-write interface) [failed]
    runtime    ...  0.087s
    --- tests/scsi/002.out	2023-06-20 16:51:09.000000000 +0000
    +++ /lkp/benchmarks/blktests/results/sdb1/scsi/002.out.bad	2023-07-09 23:41:42.308862573 +0000
    @@ -1,3 +1,3 @@
     Running scsi/002
    -PASS
    +open: Is a directory
     Test complete
scsi/004 (ensure repeated TASK SET FULL results in EIO on timing out command)
scsi/004 (ensure repeated TASK SET FULL results in EIO on timing out command) [passed]
    runtime    ...  2.826s
scsi/005 (test SCSI device blacklisting)                    
scsi/005 (test SCSI device blacklisting)                     [passed]
    runtime    ...  9.988s
scsi/006 => sdb1 (toggle SCSI cache type)                   
scsi/006 => sdb1 (toggle SCSI cache type)                    [passed]
    runtime    ...  0.144s
scsi/007 (Trigger the SCSI error handler)                   
scsi/007 (Trigger the SCSI error handler)                    [passed]
    runtime    ...  15.426s



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://github.com/intel/lkp-tests/wiki



View attachment "config-6.4.0-rc2-00300-gfcaa174a9c99" of type "text/plain" (162647 bytes)

View attachment "job-script" of type "text/plain" (5630 bytes)

Download attachment "dmesg.xz" of type "application/x-xz" (23860 bytes)

View attachment "blktests" of type "text/plain" (1467 bytes)

View attachment "job.yaml" of type "text/plain" (5049 bytes)

View attachment "reproduce" of type "text/plain" (125 bytes)