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Message-ID: <20210322060334.GD32426@xsang-OptiPlex-9020>
Date:   Mon, 22 Mar 2021 14:03:34 +0800
From:   kernel test robot <oliver.sang@...el.com>
To:     Dan Schatzberg <schatzberg.dan@...il.com>
Cc:     0day robot <lkp@...el.com>, LKML <linux-kernel@...r.kernel.org>,
        lkp@...ts.01.org, Jens Axboe <axboe@...nel.dk>,
        Tejun Heo <tj@...nel.org>, Zefan Li <lizefan.x@...edance.com>,
        Johannes Weiner <hannes@...xchg.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Michal Hocko <mhocko@...nel.org>,
        Vladimir Davydov <vdavydov.dev@...il.com>,
        Hugh Dickins <hughd@...gle.com>,
        Shakeel Butt <shakeelb@...gle.com>,
        Roman Gushchin <guro@...com>,
        Muchun Song <songmuchun@...edance.com>,
        Alex Shi <alex.shi@...ux.alibaba.com>,
        Alexander Duyck <alexander.h.duyck@...ux.intel.com>,
        Chris Down <chris@...isdown.name>,
        Yafang Shao <laoar.shao@...il.com>,
        Wei Yang <richard.weiyang@...il.com>
Subject: [loop]  eaba742710:
 WARNING:at_kernel/workqueue.c:#check_flush_dependency



Greeting,

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

commit: eaba7427107045752f7454f94a40839c0880cf02 ("[PATCH 1/3] loop: Use worker per cgroup instead of kworker")
url: https://github.com/0day-ci/linux/commits/Dan-Schatzberg/Charge-loop-device-i-o-to-issuing-cgroup/20210316-233842
base: https://git.kernel.org/cgit/linux/kernel/git/axboe/linux-block.git for-next

in testcase: xfstests
version: xfstests-x86_64-73c0871-1_20210318
with following parameters:

	disk: 4HDD
	fs: xfs
	test: generic-group-18
	ucode: 0xe2

test-description: xfstests is a regression test suite for xfs and other files ystems.
test-url: git://git.kernel.org/pub/scm/fs/xfs/xfstests-dev.git


on test machine: 4 threads Intel(R) Xeon(R) CPU E3-1225 v5 @ 3.30GHz 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>


[   50.428387] WARNING: CPU: 0 PID: 35 at kernel/workqueue.c:2613 check_flush_dependency (kbuild/src/consumer/kernel/workqueue.c:2613 (discriminator 9)) 
[   50.450013] Modules linked in: loop xfs dm_mod btrfs blake2b_generic xor zstd_compress raid6_pq libcrc32c sd_mod t10_pi sg ipmi_devintf ipmi_msghandler intel_rapl_msr intel_rapl_common x86_pkg_temp_thermal i915 intel_powerclamp coretemp crct10dif_pclmul crc32_pclmul hp_wmi sparse_keymap intel_gtt crc32c_intel ghash_clmulni_intel mei_wdt rfkill wmi_bmof rapl drm_kms_helper ahci intel_cstate syscopyarea mei_me libahci sysfillrect sysimgblt fb_sys_fops intel_uncore serio_raw mei drm libata intel_pch_thermal ie31200_edac wmi video tpm_infineon intel_pmc_core acpi_pad ip_tables
[   50.500731] CPU: 0 PID: 35 Comm: kworker/u8:3 Not tainted 5.12.0-rc2-00093-geaba74271070 #1
[   50.509081] Hardware name: HP HP Z238 Microtower Workstation/8183, BIOS N51 Ver. 01.63 10/05/2017
[   50.517963] Workqueue: loop0 loop_rootcg_workfn [loop]
[   50.523109] RIP: 0010:check_flush_dependency (kbuild/src/consumer/kernel/workqueue.c:2613 (discriminator 9)) 
[ 50.528427] Code: 8d 8b b0 00 00 00 48 8b 50 18 49 89 e8 48 8d b1 b0 00 00 00 48 c7 c7 80 ed 34 82 4c 89 c9 c6 05 8a 11 ab 01 01 e8 29 9a a9 00 <0f> 0b e9 07 ff ff ff 80 3d 78 11 ab 01 00 75 92 e9 3b ff ff ff 66
All code
========
   0:	8d 8b b0 00 00 00    	lea    0xb0(%rbx),%ecx
   6:	48 8b 50 18          	mov    0x18(%rax),%rdx
   a:	49 89 e8             	mov    %rbp,%r8
   d:	48 8d b1 b0 00 00 00 	lea    0xb0(%rcx),%rsi
  14:	48 c7 c7 80 ed 34 82 	mov    $0xffffffff8234ed80,%rdi
  1b:	4c 89 c9             	mov    %r9,%rcx
  1e:	c6 05 8a 11 ab 01 01 	movb   $0x1,0x1ab118a(%rip)        # 0x1ab11af
  25:	e8 29 9a a9 00       	callq  0xa99a53
  2a:*	0f 0b                	ud2    		<-- trapping instruction
  2c:	e9 07 ff ff ff       	jmpq   0xffffffffffffff38
  31:	80 3d 78 11 ab 01 00 	cmpb   $0x0,0x1ab1178(%rip)        # 0x1ab11b0
  38:	75 92                	jne    0xffffffffffffffcc
  3a:	e9 3b ff ff ff       	jmpq   0xffffffffffffff7a
  3f:	66                   	data16

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2    
   2:	e9 07 ff ff ff       	jmpq   0xffffffffffffff0e
   7:	80 3d 78 11 ab 01 00 	cmpb   $0x0,0x1ab1178(%rip)        # 0x1ab1186
   e:	75 92                	jne    0xffffffffffffffa2
  10:	e9 3b ff ff ff       	jmpq   0xffffffffffffff50
  15:	66                   	data16
[   50.547207] RSP: 0018:ffffc9000018fba0 EFLAGS: 00010086
[   50.552434] RAX: 0000000000000000 RBX: ffff88843a39b600 RCX: 0000000000000027
[   50.559567] RDX: 0000000000000027 RSI: 00000000ffff7fff RDI: ffff88843f4177f8
[   50.566713] RBP: ffffffffc091c760 R08: ffff88843f4177f0 R09: ffffc9000018f9b8
[   50.573875] R10: 0000000000000001 R11: 0000000000000001 R12: ffff88810d0fa800
[   50.581006] R13: 0000000000000001 R14: ffff88843f42ab80 R15: ffff88810d0fa800
[   50.588139] FS:  0000000000000000(0000) GS:ffff88843f400000(0000) knlGS:0000000000000000
[   50.596228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   50.601975] CR2: 00007fbda63ea7f8 CR3: 000000043da0a002 CR4: 00000000003706f0
[   50.609105] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   50.616240] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   50.623379] Call Trace:
[   50.625837] __flush_work (kbuild/src/consumer/kernel/workqueue.c:2669 kbuild/src/consumer/kernel/workqueue.c:3011 kbuild/src/consumer/kernel/workqueue.c:3051) 
[   50.629418] ? __queue_work (kbuild/src/consumer/arch/x86/include/asm/paravirt.h:559 kbuild/src/consumer/arch/x86/include/asm/qspinlock.h:56 kbuild/src/consumer/include/linux/spinlock.h:212 kbuild/src/consumer/include/linux/spinlock_api_smp.h:151 kbuild/src/consumer/kernel/workqueue.c:1500) 
[   50.633261] xfs_file_buffered_write (kbuild/src/consumer/fs/xfs/xfs_file.c:761) xfs
[   50.638468] do_iter_readv_writev (kbuild/src/consumer/fs/read_write.c:741) 
[   50.642833] do_iter_write (kbuild/src/consumer/fs/read_write.c:866 kbuild/src/consumer/fs/read_write.c:847) 
[   50.646513] lo_write_bvec (kbuild/src/consumer/include/linux/fs.h:2903 kbuild/src/consumer/drivers/block/loop.c:286) loop
[   50.650804] loop_process_work (kbuild/src/consumer/drivers/block/loop.c:307 kbuild/src/consumer/drivers/block/loop.c:630 kbuild/src/consumer/drivers/block/loop.c:2129 kbuild/src/consumer/drivers/block/loop.c:2161) loop
[   50.655543] ? newidle_balance (kbuild/src/consumer/kernel/sched/fair.c:10635) 
[   50.659647] process_one_work (kbuild/src/consumer/arch/x86/include/asm/jump_label.h:25 kbuild/src/consumer/include/linux/jump_label.h:200 kbuild/src/consumer/include/trace/events/workqueue.h:108 kbuild/src/consumer/kernel/workqueue.c:2280) 
[   50.663696] worker_thread (kbuild/src/consumer/include/linux/list.h:282 kbuild/src/consumer/kernel/workqueue.c:2422) 
[   50.667365] ? process_one_work (kbuild/src/consumer/kernel/workqueue.c:2364) 
[   50.671568] kthread (kbuild/src/consumer/kernel/kthread.c:292) 
[   50.674813] ? kthread_park (kbuild/src/consumer/kernel/kthread.c:245) 
[   50.678476] ret_from_fork (kbuild/src/consumer/arch/x86/entry/entry_64.S:300) 
[   50.682070] ---[ end trace cdbf6e08ae434f6c ]---
[   56.951496] loop: Write error at byte offset 1032134656, length 4096.
[   56.957973] blk_update_request: I/O error, dev loop0, sector 2015816 op 0x1:(WRITE) flags 0x4000 phys_seg 21 prio class 0
[   56.968947] loop: Write error at byte offset 1033408512, length 4096.
[   56.975421] blk_update_request: I/O error, dev loop0, sector 2018376 op 0x1:(WRITE) flags 0x4000 phys_seg 20 prio class 0
[   56.976319] loop: Write error at byte offset 1034719232, length 4096.
[   56.992849] blk_update_request: I/O error, dev loop0, sector 2020936 op 0x1:(WRITE) flags 0x4000 phys_seg 20 prio class 0
[   56.994344] loop: Write error at byte offset 1036029952, length 4096.
[   57.010337] blk_update_request: I/O error, dev loop0, sector 2023496 op 0x1:(WRITE) flags 0x4000 phys_seg 21 prio class 0
[   57.011345] loop: Write error at byte offset 1037340672, length 4096.
[   57.027789] blk_update_request: I/O error, dev loop0, sector 2026056 op 0x1:(WRITE) flags 0x4000 phys_seg 20 prio class 0
[   57.029342] loop: Write error at byte offset 1038651392, length 4096.
[   57.045247] blk_update_request: I/O error, dev loop0, sector 2028616 op 0x1:(WRITE) flags 0x4000 phys_seg 20 prio class 0
[   57.047344] loop: Write error at byte offset 1039962112, length 4096.
[   57.062715] blk_update_request: I/O error, dev loop0, sector 2031176 op 0x1:(WRITE) flags 0x4000 phys_seg 21 prio class 0
[   57.065323] loop: Write error at byte offset 1041272832, length 4096.
[   57.080148] blk_update_request: I/O error, dev loop0, sector 2033736 op 0x1:(WRITE) flags 0x4000 phys_seg 20 prio class 0
[   57.081357] loop: Write error at byte offset 1042583552, length 4096.
[   57.097612] blk_update_request: I/O error, dev loop0, sector 2036296 op 0x1:(WRITE) flags 0x4000 phys_seg 20 prio class 0
[   57.098342] loop: Write error at byte offset 1043894272, length 4096.
[   57.115063] blk_update_request: I/O error, dev loop0, sector 2038856 op 0x1:(WRITE) flags 0x4000 phys_seg 21 prio class 0
[   57.117369] loop0: writeback error on inode 131, offset 536248320, sector 17792
[   57.138492] loop0: writeback error on inode 131, offset 268124160, sector 2096616
[   57.477745] XFS (loop0): Unmounting Filesystem
[   57.676457] XFS (sda1): Unmounting Filesystem
[   57.812233] XFS (sda4): Unmounting Filesystem
[   58.538531] XFS (sda4): Mounting V5 Filesystem
[   58.555208] XFS (sda4): Ending clean mount
[   58.562478] xfs filesystem being mounted at /fs/scratch supports timestamps until 2038 (0x7fffffff)
[   58.574138] XFS (sda4): Unmounting Filesystem
[   58.707339] generic/361	_check_dmesg: something found in dmesg (see /lkp/benchmarks/xfstests/results//generic/361.dmesg)
[   58.707355]
[   58.719955]
[   58.719956]
[   58.726562] run fstests generic/362 at 2021-03-19 23:56:59
[   59.025589] XFS (sda1): Mounting V5 Filesystem
[   59.113481] XFS (sda1): Ending clean mount
[   59.120573] xfs filesystem being mounted at /fs/sda1 supports timestamps until 2038 (0x7fffffff)
[   59.171890] generic/362	[not run] mkfs.xfs doesn't have richacl feature
[   59.171893]
[   59.188841] run fstests generic/363 at 2021-03-19 23:56:59
[   59.479869] generic/363	[not run] mkfs.xfs doesn't have richacl feature
[   59.479872]
[   59.496814] run fstests generic/364 at 2021-03-19 23:56:59
[   59.771886] generic/364	[not run] mkfs.xfs doesn't have richacl feature
[   59.771889]
[   59.788796] run fstests generic/365 at 2021-03-19 23:57:00
[   60.058891] generic/365	[not run] mkfs.xfs doesn't have richacl feature
[   60.058894]
[   60.075830] run fstests generic/366 at 2021-03-19 23:57:00
[   60.346927] generic/366	[not run] mkfs.xfs doesn't have richacl feature
[   60.346930]
[   60.363892] run fstests generic/367 at 2021-03-19 23:57:00
[   60.635809] generic/367	[not run] mkfs.xfs doesn't have richacl feature
[   60.635812]
[   60.652791] run fstests generic/368 at 2021-03-19 23:57:01
[   60.928853] generic/368	[not run] mkfs.xfs doesn't have richacl feature
[   60.928857]
[   60.945736] run fstests generic/369 at 2021-03-19 23:57:01
[   61.214037] generic/369	[not run] mkfs.xfs doesn't have richacl feature
[   61.214040]
[   61.231028] run fstests generic/370 at 2021-03-19 23:57:01
[   61.503865] generic/370	[not run] mkfs.xfs doesn't have richacl feature
[   61.503868]
[   61.520803] run fstests generic/371 at 2021-03-19 23:57:02
[   62.013442] XFS (sda4): Mounting V5 Filesystem
[   62.122308] XFS (sda4): Ending clean mount
[   62.129243] xfs filesystem being mounted at /fs/scratch supports timestamps until 2038 (0x7fffffff)
[   65.996069] XFS (sda1): Unmounting Filesystem
[   66.214239] XFS (sda4): Unmounting Filesystem
[   66.810579] XFS (sda4): Mounting V5 Filesystem
[   66.854787] XFS (sda4): Ending clean mount
[   66.860848] xfs filesystem being mounted at /fs/scratch supports timestamps until 2038 (0x7fffffff)
[   66.872560] XFS (sda4): Unmounting Filesystem
[   66.957505] generic/371	 5s
[   66.957507]
[   66.973880] run fstests generic/372 at 2021-03-19 23:57:07
[   67.270516] XFS (sda1): Mounting V5 Filesystem
[   67.391362] XFS (sda1): Ending clean mount
[   67.398502] xfs filesystem being mounted at /fs/sda1 supports timestamps until 2038 (0x7fffffff)
[   69.203230] XFS (sda4): Mounting V5 Filesystem
[   69.360064] XFS (sda4): Ending clean mount
[   69.365981] xfs filesystem being mounted at /fs/scratch supports timestamps until 2038 (0x7fffffff)
[   69.446605] XFS (sda4): Unmounting Filesystem
[   69.602242] generic/372	[not run] Reflink not supported by scratch filesystem type: xfs
[   69.602246]
[   69.619022] run fstests generic/373 at 2021-03-19 23:57:10
[   71.779682] XFS (sda4): Mounting V5 Filesystem
[   72.056627] XFS (sda4): Ending clean mount
[   72.091290] xfs filesystem being mounted at /fs/scratch supports timestamps until 2038 (0x7fffffff)
[   72.169088] XFS (sda4): Unmounting Filesystem
[   72.324408] generic/373	[not run] Reflink not supported by scratch filesystem type: xfs
[   72.324412]
[   72.341201] run fstests generic/374 at 2021-03-19 23:57:12


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-rc2-00093-geaba74271070" of type "text/plain" (172899 bytes)

View attachment "job-script" of type "text/plain" (5751 bytes)

Download attachment "dmesg.xz" of type "application/x-xz" (26224 bytes)

View attachment "xfstests" of type "text/plain" (2330 bytes)

View attachment "job.yaml" of type "text/plain" (4737 bytes)

View attachment "reproduce" of type "text/plain" (987 bytes)

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