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Message-ID: <9437c997-2373-0c10-3c86-8fcf000ff45b@gmail.com>
Date: Mon, 5 Jul 2021 19:28:26 +0800
From: Wang Jianchao <jianchao.wan9@...il.com>
To: Theodore Ts'o <tytso@....edu>
Cc: Andreas Dilger <adilger.kernel@...ger.ca>,
linux-ext4@...r.kernel.org, linux-kernel@...r.kernel.org,
lishujin@...ishou.com, Josh Triplett <josh@...htriplett.org>
Subject: Re: [PATCH V2 1/7] ext4: remove the 'group' parameter of
ext4_trim_extent
Hi Ted
Thanks so much for you
I've be recently busy on some other works and so sorry for missing the mails.
I will debug and rework this patch when the project on hand is finished
Best regards
Jianchao
On 2021/6/24 3:49 AM, Theodore Ts'o wrote:
> CC'ed Josh since he was testing this patchset.
>
> On Wed, Jun 23, 2021 at 09:13:42AM -0400, Theodore Ts'o wrote:
>>
>> The conflicts were relatively minor, but the obvious fix-ups resulted
>> in a large number of crashes caused by various stress tests, such as
>> generic/068 and generic/204. I'm currently investigating to see what
>> I might have messed up when I tried applying these patches, as well as
>> running your patch set applied against 5.12 to make sure the problems
>> weren't introduced by the patch set itself.
>
> I applied this patch set on top of 5.12, where it applied w/o any
> patch conflicts, and I'm still seeing large number of crashes[1]. The
> crashes are in a wide variety of tests, and many of the stack traces
> involve the ext4_discard_work workqueue.
>
> [1] I ran the test via "gce-xfstests ltm -c ext4/all -g auto --kernel
> gs://<bucket>/kernel.deb", but almost all of the file system configs
> were crashing. So "kvm-xfstests -c ext4/4k -g auto" should be
> sufficient to reproduce the problem. kvm-xfstests can be found at
> https://github.com/tytso/xfstests-bld.
>
> I don't have time to debug this more closely right now, but at a rough
> guess is that workqueue isn't properly getting shutdown during a file
> system unmount, and this is causing all sorts of mischief.
>
> - Ted
>
>
> Jun 23 09:04:46 debian kernel: [ 0.000000] Linux version 5.12.0-xfstests-00007-g1d72c24b1506 (tytso@...c) (gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2) #188 SMP Wed Jun 23 08:59:01 EDT 2021
> Jun 23 09:04:46 debian kernel: [ 0.000000] Command line: BOOT_IMAGE=/boot/vmlinuz-5.12.0-xfstests-00007-g1d72c24b1506 root=UUID=d7961c9f-8636-4194-bcb7-b7861b5a470f ro console=ttyS0,115200 earlyprintk=ttyS0,115200 elevator=noop console=ttyS0 net.ifnames=0 biosdevname=0 mem=7680M fstestcfg=ext4/4k fstestset=-g,auto fstestexc= fstestopt=aex fstesttyp=ext4 fstestapi=1.5 fsteststr= nfssrv= orig_cmdline=LS1pbnN0YW5jZS1uYW1lIHhmc3Rlc3RzLWx0bS0yMDIxMDYyMzA5MDI0Ny1hYSAtLWdjZS16b25lIHVzLXdlc3QxLWEgLS1ncy1idWNrZXQgZ2NlLXhmc3Rlc3RzIC0taW1hZ2UtcHJvamVjdCBnY2UteGZzdGVzdHMgLS1rZXJuZWwgZ3M6Ly9nY2UteGZzdGVzdHMva2VybmVsLmRlYiAtLWJ1Y2tldC1zdWJkaXIgcmVzdWx0cyAtLW5vLWVtYWlsIC1jIGV4dDQvNGsgZnVsbA==
> ...
> [ 954.782827] run fstests generic/041 at 2021-06-23 09:20:30
> Jun 23 09:20:30 xfstests-ltm-20210623090247-aa systemd[1]: Started /usr/bin/bash -c test -w /proc/self/oom_score_adj && echo 250 > /proc/self/oom_score_adj; exec ./tests/generic/041.
> Jun 23 09:20:31 xfstests-ltm-20210623090247-aa kernel: [ 955.288215] EXT4-fs (dm-0): mounted filesystem with ordered data mode. Opts: acl,user_xattr,block_validity. Quota mode: none.
> Jun 23 09:20:31 xfstests-ltm-20210623090247-aa kernel: [ 955.879898] EXT4-fs (dm-2): mounted filesystem with ordered data mode. Opts: acl,user_xattr,block_validity. Quota mode: none.
> Jun 23 09:20:50 xfstests-ltm-20210623090247-aa systemd[1]: xt\x2dvdc.mount: Succeeded.
> Jun 23 09:20:50 xfstests-ltm-20210623090247-aa systemd[921]: xt\x2dvdc.mount: Succeeded.
> Jun 23 09:20:51 xfstests-ltm-20210623090247-aa kernel: [ 975.090048] EXT4-fs (dm-2): recovery complete
> Jun 23 09:20:51 xfstests-ltm-20210623090247-aa kernel: [ 975.090776] EXT4-fs (dm-2): mounted filesystem with ordered data mode. Opts: acl,user_xattr,block_validity. Quota mode: none.
> Jun 23 09:21:01 xfstests-ltm-20210623090247-aa systemd[1]: xt\x2dvdc.mount: Succeeded.
> Jun 23 09:21:01 xfstests-ltm-20210623090247-aa systemd[921]: xt\x2dvdc.mount: Succeeded.
> [ 985.883114] BUG: kernel NULL pointer dereference, address: 0000000000000040
> [ 985.890856] #PF: supervisor read access in kernel mode
> [ 985.896241] #PF: error_code(0x0000) - not-present page
> [ 985.901665] PGD 0 P4D 0
> [ 985.904648] Oops: 0000 [#1] SMP PTI
> [ 985.908265] CPU: 0 PID: 5738 Comm: kworker/u4:2 Not tainted 5.12.0-xfstests-00007-g1d72c24b1506 #188
> [ 985.917880] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
> [ 985.927582] Workqueue: ext4discard ext4_discard_work
> [ 985.932662] RIP: 0010:ext4_discard_work+0x31/0x3f0
> [ 985.937653] Code: 41 56 41 55 41 54 55 53 48 83 ec 50 48 8b af 88 fe ff ff 65 48 8b 04 25 28 00 00 00 48 89 44 24 48 31 c0 48 8b 85 e8 06 00 00 <8b> 50 40 85 d2 48 89 14 24 0f 84 82 02 00 00 31 db eb 2c 41 89 d9
> [ 985.956879] RSP: 0018:ffffa527052c7dd8 EFLAGS: 00010246
> [ 985.962235] RAX: 0000000000000000 RBX: ffff8db25dd98000 RCX: 0000000000000001
> [ 985.969496] RDX: 0000000000000000 RSI: ffffffffa0adde80 RDI: ffff8db25fff3510
> [ 985.976997] RBP: ffff8db25fc2f000 R08: 0000000000000000 R09: 0000000000040479
> [ 985.985066] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8db24011b800
> [ 985.992332] R13: ffff8db240822500 R14: 0000000000000000 R15: 0000000000000000
> [ 985.999966] FS: 0000000000000000(0000) GS:ffff8db319200000(0000) knlGS:0000000000000000
> [ 986.008242] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> [ 986.014229] CR2: 0000000000000040 CR3: 000000002c212006 CR4: 00000000003706f0
> [ 986.021660] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
> [ 986.029742] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
> [ 986.037346] Call Trace:
> [ 986.039958] ? lock_acquire.part.0+0x5c/0x120
> [ 986.044430] ? process_one_work+0x1fb/0x590
> [ 986.048844] ? lock_is_held_type+0x98/0x100
> [ 986.053742] process_one_work+0x27b/0x590
> [ 986.058146] worker_thread+0x4e/0x300
> [ 986.061953] ? process_one_work+0x590/0x590
> [ 986.066255] kthread+0x13a/0x150
> [ 986.069770] ? __kthread_bind_mask+0x60/0x60
> [ 986.074420] ret_from_fork+0x22/0x30
> [ 986.078269] CR2: 0000000000000040
> [ 986.081703] ---[ end trace 01e941885177e812 ]---
> [ 986.086543] RIP: 0010:ext4_discard_work+0x31/0x3f0
> [ 986.091558] Code: 41 56 41 55 41 54 55 53 48 83 ec 50 48 8b af 88 fe ff ff 65 48 8b 04 25 28 00 00 00 48 89 44 24 48 31 c0 48 8b 85 e8 06 00 00 <8b> 50 40 85 d2 48 89 14 24 0f 84 82 02 00 00 31 db eb 2c 41 89 d9
> [ 986.110810] RSP: 0018:ffffa527052c7dd8 EFLAGS: 00010246
> [ 986.116344] RAX: 0000000000000000 RBX: ffff8db25dd98000 RCX: 0000000000000001
> [ 986.123850] RDX: 0000000000000000 RSI: ffffffffa0adde80 RDI: ffff8db25fff3510
> [ 986.131096] RBP: ffff8db25fc2f000 R08: 0000000000000000 R09: 0000000000040479
> [ 986.138443] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8db24011b800
> [ 986.145968] R13: ffff8db240822500 R14: 0000000000000000 R15: 0000000000000000
> [ 986.153412] FS: 0000000000000000(0000) GS:ffff8db319200000(0000) knlGS:0000000000000000
> [ 986.161707] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> [ 986.167563] CR2: 0000000000000040 CR3: 000000002c212006 CR4: 00000000003706f0
> [ 986.175089] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
> [ 986.182509] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
> [ 986.190000] BUG: sleeping function called from invalid context at include/linux/percpu-rwsem.h:49
> [ 986.199449] in_atomic(): 0, irqs_disabled(): 1, non_block: 0, pid: 5738, name: kworker/u4:2
> [ 986.208016] INFO: lockdep is turned off.
> [ 986.212055] irq event stamp: 559784
> [ 986.215784] hardirqs last enabled at (559783): [<ffffffff9ff78ec4>] _raw_spin_unlock_irq+0x24/0x30
> [ 986.225129] hardirqs last disabled at (559784): [<ffffffff9ff69405>] exc_page_fault+0x35/0x240
> [ 986.233856] softirqs last enabled at (559776): [<ffffffff9f50b8cd>] wb_workfn+0x18d/0x350
> [ 986.242258] softirqs last disabled at (559772): [<ffffffff9f45cd8e>] wb_wakeup_delayed+0x2e/0x70
> [ 986.251281] CPU: 0 PID: 5738 Comm: kworker/u4:2 Tainted: G D 5.12.0-xfstests-00007-g1d72c24b1506 #188
> [ 986.261926] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
> [ 986.271275] Workqueue: ext4discard ext4_discard_work
> [ 986.276382] Call Trace:
> [ 986.279012] dump_stack+0x6d/0x89
> [ 986.283240] ___might_sleep.cold+0xa6/0xb6
> [ 986.287489] exit_signals+0x1c/0x2c0
> [ 986.291417] do_exit+0xa6/0x3c0
> [ 986.294672] rewind_stack_do_exit+0x17/0x20
> [ 986.299092] RIP: 0000:0x0
> [ 986.301940] Code: Unable to access opcode bytes at RIP 0xffffffffffffffd6.
> [ 986.309322] RSP: 0000:0000000000000000 EFLAGS: 00000000 ORIG_RAX: 0000000000000000
> [ 986.317124] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
> [ 986.324586] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
> [ 986.331945] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
> [ 986.339473] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
> [ 986.346718] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
> Jun 23 09:21:02 xfstests-ltm-20210623090247-aa kernel: [ 985.883114] BUG: kernel NULL pointer dereference, address: 0000000000000040
> Jun 23 09:21:02 xfstests-ltm-20210623090247-aa kernel: [ 985.890856] #PF: supervisor read access in kernel mode
> Jun 23 09:21:02 xfstests-ltm-20210623090247-aa kernel: [ 985.896241] #PF: error_code(0x0000) - not-present page
> Jun 23 09:21:02 xfstests-ltm-20210623090247-aa kernel: [ 985.901665] PGD 0 P4D 0
> Jun 23 09:21:02 xfstests-ltm-20210623090247-aa kernel: [ 985.904648] Oops: 0000 [#1] SMP PTI
> Jun 23 09:21:02 xfstests-ltm-20210623090247-aa kernel: [ 985.908265] CPU: 0 PID: 5738 Comm: kworker/u4:2 Not tainted 5.12.0-xfstests-00007-g1d72c24b1506 #188
> Jun 23 09:21:02 xfstests-ltm-20210623090247-aa kernel: [ 985.917880] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
> Jun 23 09:21:02 xfstests-ltm-20210623090247-aa kernel: [ 985.927582] Workqueue: ext4discard ext4_discard_work
> Jun 23 09:21:02 xfstests-ltm-20210623090247-aa kernel: [ 985.932662] RIP: 0010:ext4_discard_work+0x31/0x3f0
> Jun 23 09:21:02 xfstests-ltm-20210623090247-aa kernel: [ 985.937653] Code: 41 56 41 55 41 54 55 53 48 83 ec 50 48 8b af 88 fe ff ff 65 48 8b 04 25 28 00 00 00 48 89 44 24 48 31 c0 48 8b 85 e8 06 00 00 <8b> 50 40 85 d2 48 89 14 24 0f 84 82 02 00 00 31 db eb 2c 41 89 d9
> Jun 23 09:21:02 xfstests-ltm-20210623090247-aa kernel: [ 985.956879] RSP: 0018:ffffa527052c7dd8 EFLAGS: 00010246
> Jun 23 09:21:02 xfstests-ltm-20210623090247-aa kernel: [ 985.962235] RAX: 0000000000000000 RBX: ffff8db25dd98000 RCX: 0000000000000001
> Jun 23 09:21:02 xfstests-ltm-20210623090247-aa kernel: [ 985.969496] RDX: 0000000000000000 RSI: ffffffffa0adde80 RDI: ffff8db25fff3510
> Jun 23 09:21:02 xfstests-ltm-20210623090247-aa kernel: [ 985.976997] RBP: ffff8db25fc2f000 R08: 0000000000000000 R09: 0000000000040479
> Jun 23 09:21:02 xfstests-ltm-20210623090247-aa kernel: [ 985.985066] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8db24011b800
> Jun 23 09:21:02 xfstests-ltm-20210623090247-aa kernel: [ 985.992332] R13: ffff8db240822500 R14: 0000000000000000 R15: 0000000000000000
> Jun 23 09:21:02 xfstests-ltm-20210623090247-aa kernel: [ 985.999966] FS: 0000000000000000(0000) GS:ffff8db319200000(0000) knlGS:0000000000000000
> Jun 23 09:21:02 xfstests-ltm-20210623090247-aa kernel: [ 986.008242] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> Jun 23 09:21:02 xfstests-ltm-20210623090247-aa kernel: [ 986.014229] CR2: 0000000000000040 CR3: 000000002c212006 CR4: 00000000003706f0
> Jun 23 09:21:02 xfstests-ltm-20210623090247-aa kernel: [ 986.021660] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
> Jun 23 09:21:02 xfstests-ltm-20210623090247-aa kernel: [ 986.029742] DR3: 0000000000000000 DR6: 0000[ 986.603186] run fstests generic/043 at 2021-06-23 09:21:02
> 0000fffe0ff0 DR7: 0000000000000400
> Jun 23 09:21:02 xfstests-ltm-20210623090247-aa kernel: [ 986.037346] Call Trace:
> Jun 23 09:21:02 xfstests-ltm-20210623090247-aa kernel: [ 986.039958] ? lock_acquire.part.0+0x5c/0x120
> Jun 23 09:21:02 xfstests-ltm-20210623090247-aa kernel: [ 986.044430] ? process_one_work+0x1fb/0x590
> Jun 23 09:21:02 xfstests-ltm-20210623090247-aa kernel: [ 986.048844] ? lock_is_held_type+0x98/0x100
> Jun 23 09:21:02 xfstests-ltm-20210623090247-aa kernel: [ 986.053742] process_one_work+0x27b/0x590
> Jun 23 09:21:02 xfstests-ltm-20210623090247-aa kernel: [ 986.058146] worker_thread+0x4e/0x300
> Jun 23 09:21:02 xfstests-ltm-20210623090247-aa kernel: [ 986.061953] ? process_one_work+0x590/0x590
> Jun 23 09:21:02 xfstests-ltm-20210623090247-aa kernel: [ 986.066255] kthread+0x13a/0x150
> Jun 23 09:21:02 xfstests-ltm-20210623090247-aa kernel: [ 986.069770] ? __kthread_bind_mask+0x60/0x60
> Jun 23 09:21:02 xfstests-ltm-20210623090247-aa kernel: [ 986.074420] ret_from_fork+0x22/0x30
> Jun 23 09:21:02 xfstests-ltm-20210623090247-aa kernel: [ 986.078269] CR2: 0000000000000040
> Jun 23 09:21:02 xfstests-ltm-20210623090247-aa kernel: [ 986.081703] ---[ end trace 01e941885177e812 ]---
> Jun 23 09:21:02 xfstests-ltm-20210623090247-aa kernel: [ 986.086543] RIP: 0010:ext4_discard_work+0x31/0x3f0
> Jun 23 09:21:02 xfstests-ltm-20210623090247-aa kernel: [ 986.091558] Code: 41 56 41 55 41 54 55 53 48 83 ec 50 48 8b af 88 fe ff ff 65 48 8b 04 25 28 00 00 00 48 89 44 24 48 31 c0 48 8b 85 e8 06 00 00 <8b> 50 40 85 d2 48 89 14 24 0f 84 82 02 00 00 31 db eb 2c 41 89 d9
> Jun 23 09:21:02 xfstests-ltm-20210623090247-aa kernel: [ 986.110810] RSP: 0018:ffffa527052c7dd8 EFLAGS: 00010246
> Jun 23 09:21:02 xfstests-ltm-20210623090247-aa kernel: [ 986.116344] RAX: 0000000000000000 RBX: ffff8db25dd98000 RCX: 0000000000000001
> Jun 23 09:21:02 xfstests-ltm-20210623090247-aa kernel: [ 986.123850] RDX: 0000000000000000 RSI: ffffffffa0adde80 RDI: ffff8db25fff3510
> Jun 23 09:21:02 xfstests-ltm-20210623090247-aa kernel: [ 986.131096] RBP: ffff8db25fc2f000 R08: 0000000000000000 R09: 0000000000040479
> Jun 23 09:21:02 xfstests-ltm-20210623090247-aa kernel: [ 986.138443] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8db24011b800
> Jun 23 09:21:02 xfstests-ltm-20210623090247-aa kernel: [ 986.145968] R13: ffff8db240822500 R14: 0000000000000000 R15: 0000000000000000
> Jun 23 09:21:02 xfstests-ltm-20210623090247-aa kernel: [ 986.153412] FS: 0000000000000000(0000) GS:ffff8db319200000(0000) knlGS:0000000000000000
> Jun 23 09:21:02 xfstests-ltm-20210623090247-aa kernel: [ 986.161707] C[ 986.843267] EXT4-fs (dm-0): mounted filesystem with ordered data mode. Opts: acl,user_xattr,block_validity. Quota mode: none.
> S: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> Jun 23 09:21:02 xfstests-ltm-20210623090247-aa kernel: [ 986.167563] CR2: 0000000000000040 CR3: 000000002c212006 CR4: 00000000003706f0
> Jun 23 09:21:02 xfstests-ltm-20210623090247-aa kernel: [ 986.175089] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
> Jun 23 09:21:02 xfstests-ltm-20210623090247-aa kernel: [ 986.182509] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
> Jun 23 09:21:02 xfstests-ltm-20210623090247-aa kernel: [ 986.190000] BUG: sleeping function called from invalid context at include/linux/percpu-rwsem.h:49
> Jun 23 09:21:02 xfstests-ltm-20210623090247-aa kernel: [ 986.199449] in_atomic(): 0, irqs_disabled(): 1, non_block: 0, pid: 5738, name: kworker/u4:2
> Jun 23 09:21:02 xfstests-ltm-20210623090247-aa kernel: [ 986.208016] INFO: lockdep is turned off.
> Jun 23 09:21:02 xfstests-ltm-20210623090247-aa kernel: [ 986.212055] irq event stamp: 559784
> Jun 23 09:21:02 xfstests-ltm-20210623090247-aa kernel: [ 986.215784] hardirqs last enabled at (559783): [<ffffffff9ff78ec4>] _raw_spin_unlock_irq+0x24/0x30
> Jun 23 09:21:02 xfstests-ltm-20210623090247-aa kernel: [ 986.225129] hardirqs last disabled at (559784): [<ffffffff9ff69405>] exc_page_fault+0x35/0x240
> Jun 23 09:21:02 xfstests-ltm-20210623090247-aa kernel: [ 986.233856] softirqs last enabled at (559776): [<ffffffff9f50b8cd>] wb_workfn+0x18d/0x350
> Jun 23 09:21:02 xfstests-ltm-20210623090247-aa kernel: [ 986.242258] softirqs last disabled at (559772): [<ffffffff9f45cd8e>] wb_wakeup_delayed+0x2e/0x70
> Jun 23 09:21:02 xfstests-ltm-20210623090247-aa kernel: [ 986.251281] CPU: 0 PID: 5738 Comm: kworker/u4:2 Tainted: G D 5.12.0-xfstests-00007-g1d72c24b1506 #188
> Jun 23 09:21:02 xfstests-ltm-20210623090247-aa kernel: [ 986.261926] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
> Jun 23 09:21:02 xfstests-ltm-20210623090247-aa kernel: [ 986.271275] Workqueue: ext4discard ext4_discard_work
> Jun 23 09:21:02 xfstests-ltm-20210623090247-aa kernel: [ 986.276382] Call Trace:
> Jun 23 09:21:02 xfstests-ltm-20210623090247-a[ 987.049261] EXT4-fs (dm-1): mounted filesystem with ordered data mode. Opts: acl,user_xattr,block_validity. Quota mode: none.
> a kernel: [ 986.279012] dump_stack+0x6d/0x89
> Jun 23 09:21:02 xfstests-ltm-20210623090247-aa kernel: [ 986.283240] ___might_sleep.cold+0xa6/0xb6
> Jun 23 09:21:02 xfstests-ltm-20210623090247-aa kernel: [ 986.287489] exit_signals+0x1c/0x2c0
> Jun 23 09:21:02 xfstests-ltm-20210623090247-aa kernel: [ 986.291417] do_exit+0xa6/0x3c0
> Jun 23 09:21:02 xfstests-ltm-20210623090247-aa kernel: [ 986.294672] rewind_stack_do_exit+0x17/0x20
> Jun 23 0[ 987.102134] EXT4-fs (dm-1): shut down requested (1)
> 9:21:02 xfstests[ 987.107927] Aborting journal on device dm-1-8.
> -ltm-20210623090247-aa kernel: [ 986.299092] RIP: 0000:0x0
> Jun 23 09:21:02 xfstests-ltm-20210623090247-aa kernel: [ 986.301940] Code: Unable to access opcode bytes at RIP 0xffffffffffffffd6.
> Jun 23 09:21:02 xfstests-ltm-20210623090247-aa kernel: [ 986.309322] RSP: 0000:0000000000000000 EFLAGS: 00000000 ORIG_RAX: 0000000000000000
> Jun 23 09:21:02 xfstests-ltm-20210623090247-aa kernel: [ 986.317124] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
> Jun 23 09:21:02 xfstests-ltm-20210623090247-aa kernel: [ 986.324586] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
> Jun 23 09:21:02 xfstests-ltm-20210623090247-aa kernel: [ 986.331945] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
> Jun 23 09:21:02 xfstests-ltm-20210623090247-aa kernel: [ 986.339473] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
> Jun 23 09:21:02 xfstests-ltm-20210623090247-aa kernel: [ 986.346718] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
> Jun 23 09:21:02 xfstests-ltm-20210623090247-aa systemd[1]: fstests-generic-041.scope: Succeeded.
> Jun 23 09:21:02 xfstests-ltm-20210623090247-aa systemd[921]: xt\x2dvdb.mount: Succeeded.
> Jun 23 09:21:02 xfstests-ltm-20210623090247-aa systemd[1]: xt\x2dvdb.mount: Succeeded.
> Jun 23 09:21:02 xfstests-ltm-20210623090247-aa systemd[1]: Started /usr/bin/bash -c test -w /proc/self/oom_score_adj && echo 250 > /proc/self/oom_score_adj; exec ./tests/generic/043.
> Jun 23 09:21:02 xfstests-ltm-20210623090247-aa kernel: [ 986.843267] EXT4-fs (dm-0): mounted filesystem with ordered data mode. Opts: acl,user_xattr,block_validity. Quota mode: none.
> Jun 23 09:21:03 xfstests-ltm-20210623090247-aa kernel: [ 987.049261] EXT4-fs (dm-1): mounted filesystem with ordered data mode. Opts: acl,user_xattr,block_validity. Quota mode: none.
> Jun 23 09:21:03 xfstests-ltm-20210623090247-aa kernel: [ 987.102134] EXT4-fs (dm-1)[ 987.284882] EXT4-fs (dm-1): mounted filesystem with ordered data mode. Opts: acl,user_xattr,block_validity. Quota mode: none.
> : shut down requested (1)
> Jun 23 09:21:03 xfstests-ltm-20210623090247-aa kernel: [ 987.107927] Aborting journal on device dm-1-8.
> Jun 23 09:21:03 xfstests-ltm-20210623090247-aa systemd[1]: xt\x2dvdc.mount: Succeeded.
> Jun 23 09:21:03 xfstests-ltm-20210623090247-aa systemd[921]: xt\x2dvdc.mount: Succeeded.
> Jun 23 09:21:03 xfstests-ltm-20210623090247-aa kernel: [ 987.284882] EXT4-fs (dm-1): mounted filesystem with ordered data mode. Opts: acl,user_xattr,block_validity. Quota mode: none.
> [ 999.135257] EXT4-fs (dm-1): shut down requested (2)
> [ 999.140764] Aborting journal on device dm-1-8.
> Jun 23 09:21:15 xfstests-ltm-20210623090247-aa kernel: [ 999.135257] EXT4-fs (dm-1): shut down requested (2)
> Jun 23 09:21:15 xfstests-ltm-20210623090247-aa kernel: [ 999.140764] Aborting journal on device dm-1-8.
> Jun 23 09:21:15 xfstests-ltm-20210623090247-aa systemd[1]: xt\x2dvdc.mount: Succeeded.
> Jun 23 09:21:15 xfstests-ltm-20210623090247-aa systemd[921]: xt\x2dvdc.mount: Succeeded.
> [ 999.206122] EXT4-fs (dm-1): recovery complete
>
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