linux-kernel - 4f4fd7c579: mdadm-selftests.10ddf-fail-two-spares.fail

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Message-ID: <20190412023814.GI17122@shao2-debian>
Date:   Fri, 12 Apr 2019 10:38:14 +0800
From:   kernel test robot <rong.a.chen@...el.com>
To:     Nigel Croxon <ncroxon@...hat.com>
Cc:     Jens Axboe <axboe@...nel.dk>, Xiao Ni <xni@...hat.com>,
        David Jeffery <djeffery@...hat.com>,
        Song Liu <songliubraving@...com>,
        LKML <linux-kernel@...r.kernel.org>,
        Stephen Rothwell <sfr@...b.auug.org.au>, lkp@...org
Subject: 4f4fd7c579: mdadm-selftests.10ddf-fail-two-spares.fail

FYI, we noticed the following commit (built with gcc-7):

commit: 4f4fd7c5798bbdd5a03a60f6269cf1177fbd11ef ("Don't jump to compute_result state from check_result state")
https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git master

in testcase: mdadm-selftests
with following parameters:

	disk: 1HDD
	test_prefix: 10



on test machine: qemu-system-x86_64 -enable-kvm -cpu SandyBridge -smp 2 -m 4G

caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace):


+-------------------------------------------------+------------+------------+
|                                                 | 81ba6abd2b | 4f4fd7c579 |
+-------------------------------------------------+------------+------------+
| boot_successes                                  | 1          | 0          |
| boot_failures                                   | 3          | 4          |
| BUG:kernel_reboot-without-warning_in_test_stage | 3          | 4          |
| mdadm-selftests.10ddf-fail-two-spares.fail      | 0          | 4          |
+-------------------------------------------------+------------+------------+

[  165.841336 ] Testing on linux-5.1.0-rc3-00023-g4f4fd7c kernel
[  165.841339 ]
[  167.302289 ] md/raid:md126: not clean -- starting background reconstruction
[  167.304321 ] md/raid:md126: device loop13 operational as raid disk 3
[  167.306055 ] md/raid:md126: device loop12 operational as raid disk 2
[  167.308044 ] md/raid:md126: device loop11 operational as raid disk 1
[  167.309522 ] md/raid:md126: device loop10 operational as raid disk 0
[  167.320733 ] md/raid:md126: raid level 6 active with 4 out of 4 devices, algorithm 10
[  167.327158 ] md126: detected capacity change from 0 to 33554432
[  167.409736 ] md: resync of RAID array md126
[  167.561148 ] md/raid10:md125: not clean -- starting background reconstruction
[  167.563142 ] md/raid10:md125: active with 4 out of 4 devices
[  167.568822 ] md125: detected capacity change from 0 to 33554432
[  167.588867 ] md: delaying resync of md125 until md126 has finished (they share one or more physical units)
[  168.171556 ] md: md126: resync done.
[  168.202995 ] md: resync of RAID array md125
[  168.438884 ] md: md125: resync done.
[  168.998162 ] md/raid10:md125: Disk failure on loop11, disabling device.
[  168.998162 ] md/raid10:md125: Operation continuing on 3 devices.
[  169.044560 ] md/raid:md126: Disk failure on loop11, disabling device.
[  169.044560 ] md/raid:md126: Operation continuing on 3 devices.
[  169.104982 ] md: recovery of RAID array md125
[  169.129051 ] md: delaying recovery of md126 until md125 has finished (they share one or more physical units)
[  170.016071 ] md/raid10:md125: Disk failure on loop12, disabling device.
[  170.016071 ] md/raid10:md125: Operation continuing on 2 devices.
[  170.031796 ] md/raid:md126: Disk failure on loop12, disabling device.
[  170.031796 ] md/raid:md126: Operation continuing on 2 devices.
[  170.123425 ] md: md125: recovery interrupted.
[  170.127705 ] md: recovery of RAID array md126
[  170.132003 ] md: delaying recovery of md125 until md126 has finished (they share one or more physical units)
[  177.280292 ] md: md126: recovery done.
[  177.286369 ] md: recovery of RAID array md125
[  177.304563 ] md: delaying recovery of md126 until md125 has finished (they share one or more physical units)
[  183.347549 ] md: md125: recovery done.
[  183.350452 ] md: recovery of RAID array md126
[  183.368340 ] md: delaying recovery of md125 until md126 has finished (they share one or more physical units)
[  190.512654 ] md: md126: recovery done.
[  190.519633 ] md: recovery of RAID array md125
[  197.641803 ] md: md125: recovery done.
[  198.039343 ] tests/10ddf-fail-two-spares... FAILED - see /var/tmp/log for details


To reproduce:

        # build kernel
	cd linux
	cp config-5.1.0-rc3-00023-g4f4fd7c .config
	make HOSTCC=gcc-7 CC=gcc-7 ARCH=x86_64 olddefconfig
	make HOSTCC=gcc-7 CC=gcc-7 ARCH=x86_64 prepare
	make HOSTCC=gcc-7 CC=gcc-7 ARCH=x86_64 modules_prepare
	make HOSTCC=gcc-7 CC=gcc-7 ARCH=x86_64 SHELL=/bin/bash
	make HOSTCC=gcc-7 CC=gcc-7 ARCH=x86_64 bzImage


        git clone https://github.com/intel/lkp-tests.git
        cd lkp-tests
        find lib/ | cpio -o -H newc --quiet | gzip > modules.cgz
	bin/lkp qemu -k <bzImage> -m modules.cgz job-script # job-script is attached in this email




Thanks,
Rong Chen


View attachment "config-5.1.0-rc3-00023-g4f4fd7c" of type "text/plain" (193351 bytes)

View attachment "job-script" of type "text/plain" (5156 bytes)

Download attachment "dmesg.xz" of type "application/x-xz" (19576 bytes)

View attachment "mdadm-selftests" of type "text/plain" (2672 bytes)