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Message-ID: <03ad09d2-0c0e-ed82-509a-9758fbc81f64@prnet.org>
Date:   Wed, 4 Jan 2023 20:15:34 +0100
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Subject: =?UTF-8?Q?Re=3a_=5bregression=5d_Bug=c2=a0216851_-_btrfs_write_time?=
 =?UTF-8?Q?_corrupting_for_log_tree?=
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To:     Qu Wenruo <quwenruo.btrfs@gmx.com>, dsterba@suse.cz,
        Thorsten Leemhuis <regressions@leemhuis.info>
Cc:     linux-btrfs <linux-btrfs@vger.kernel.org>,
        Chris Mason <clm@fb.com>, Josef Bacik <josef@toxicpanda.com>,
        David Sterba <dsterba@suse.com>,
        LKML <linux-kernel@vger.kernel.org>,
        "regressions@lists.linux.dev" <regressions@lists.linux.dev>
References: <ae169fc6-f504-28f0-a098-6fa6a4dfb612@leemhuis.info>
 <20230102154050.GJ11562@twin.jikos.cz>
 <ac2f141b-b03a-6054-8250-d27a5b568027@gmx.com>
From:   David Arendt <admin@prnet.org>
In-Reply-To: <ac2f141b-b03a-6054-8250-d27a5b568027@gmx.com>
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On 1/3/23 00:38, Qu Wenruo wrote:
>
>
> On 2023/1/2 23:40, David Sterba wrote:
>> On Tue, Dec 27, 2022 at 03:01:34PM +0100, Thorsten Leemhuis wrote:
>>> Hi, this is your Linux kernel regression tracker speaking.
>>>
>>> I noticed a regression report in bugzilla.kernel.org. As many (most?)
>>> kernel developer don't keep an eye on it, I decided to forward it by
>>> mail. Quoting from https://bugzilla.kernel.org/show_bug.cgi?id=216851 :
>>>
>>>> I am experiencing btrfs file system errors followed by a switch to 
>>>> readony with kernel 6.1 and 6.1.1. It never happened with kernel 
>>>> versions before.
>>>>
>>>> A btrfs scrub and a btrfs check --readonly returned 0 errors.
>>>>
>>>> 2022-12-26T07:44:45.000000+01:00 server02 kernel - - - BTRFS 
>>>> critical (device sda2): corrupt leaf: root=18446744073709551610 
>>>> block=203366612992 slot=73, bad key order, prev (484119 96 1312873) 
>>>> current (484119 96 1312849)
>>>> 2022-12-26T07:44:45.000000+01:00 server02 kernel - - - BTRFS info 
>>>> (device sda2): leaf 203366612992 gen 5068802 total ptrs 105 free 
>>>> space 10820 owner 18446744073709551610
>>>> 2022-12-26T07:44:45.000000+01:00 server02 kernel - - - \x09item 0 
>>>> key (484119 1 0) itemoff 16123 itemsize 160
>>>> 2022-12-26T07:44:45.000000+01:00 server02 kernel - - - 
>>>> \x09\x09inode generation 45 size 2250 mode 40700
>>>> 2022-12-26T07:44:45.000000+01:00 server02 kernel - - - \x09item 1 
>>>> key (484119 12 484118) itemoff 16097 itemsize 26
>>>> 2022-12-26T07:44:45.000000+01:00 server02 kernel - - - \x09item 2 
>>>> key (484119 72 15) itemoff 16089 itemsize 8
>>>> 2022-12-26T07:44:45.000000+01:00 server02 kernel - - - \x09item 3 
>>>> key (484119 72 20) itemoff 16081 itemsize 8
>>>> ...
>>>> 2022-12-26T07:44:45.000000+01:00 server02 kernel - - - \x09item 82 
>>>> key (484119 96 1312873) itemoff 14665 itemsize 51
>>>> 2022-12-26T07:44:45.000000+01:00 server02 kernel - - - \x09item 83 
>>>> key (484119 96 1312877) itemoff 14609 itemsize 56
>>>> 2022-12-26T07:44:45.000000+01:00 server02 kernel - - - \x09item 84 
>>>> key (484128 1 0) itemoff 14449 itemsize 160
>>>> 2022-12-26T07:44:45.000000+01:00 server02 kernel - - - 
>>>> \x09\x09inode generation 45 size 98304 mode 100644
>>>> 2022-12-26T07:44:45.000000+01:00 server02 kernel - - - \x09item 85 
>>>> key (484128 108 0) itemoff 14396 itemsize 53
>>>> 2022-12-26T07:44:45.000000+01:00 server02 kernel - - - 
>>>> \x09\x09extent data disk bytenr 10674830381056 nr 65536
>>>> 2022-12-26T07:44:45.000000+01:00 server02 kernel - - - 
>>>> \x09\x09extent data offset 0 nr 65536 ram 65536
>>>> 2022-12-26T07:44:45.000000+01:00 server02 kernel - - - \x09item 86 
>>>> key (484129 1 0) itemoff 14236 itemsize 160
>>>> 2022-12-26T07:44:45.000000+01:00 server02 kernel - - - 
>>>> \x09\x09inode generation 45 size 26214400 mode 100644
>>>> 2022-12-26T07:44:45.000000+01:00 server02 kernel - - - \x09item 87 
>>>> key (484129 108 589824) itemoff 14183 itemsize 53
>>>> 2022-12-26T07:44:45.000000+01:00 server02 kernel - - - 
>>>> \x09\x09extent data disk bytenr 10665699962880 nr 32768
>>>> 2022-12-26T07:44:45.000000+01:00 server02 kernel - - - 
>>>> \x09\x09extent data offset 0 nr 32768 ram 32768
>>>> 2022-12-26T07:44:45.000000+01:00 server02 kernel - - - \x09item 88 
>>>> key (484129 108 2850816) itemoff 14130 itemsize 53
>>>> 2022-12-26T07:44:45.000000+01:00 server02 kernel - - - 
>>>> \x09\x09extent data disk bytenr 10665848733696 nr 32768
>>>> 2022-12-26T07:44:45.000000+01:00 server02 kernel - - - 
>>>> \x09\x09extent data offset 0 nr 32768 ram 32768
>>>> 2022-12-26T07:44:45.000000+01:00 server02 kernel - - - \x09item 89 
>>>> key (484129 108 11042816) itemoff 14077 itemsize 53
>>>> 2022-12-26T07:44:45.000000+01:00 server02 kernel - - - 
>>>> \x09\x09extent data disk bytenr 10660869349376 nr 32768
>>>> 2022-12-26T07:44:45.000000+01:00 server02 kernel - - - 
>>>> \x09\x09extent data offset 0 nr 32768 ram 32768
>>>> 2022-12-26T07:44:45.000000+01:00 server02 kernel - - - \x09item 90 
>>>> key (484129 108 13402112) itemoff 14024 itemsize 53
>>>> 2022-12-26T07:44:45.000000+01:00 server02 kernel - - - 
>>>> \x09\x09extent data disk bytenr 10660207378432 nr 32768
>>>> 2022-12-26T07:44:45.000000+01:00 server02 kernel - - - 
>>>> \x09\x09extent data offset 0 nr 32768 ram 32768
>>>> 2022-12-26T07:44:45.000000+01:00 server02 kernel - - - \x09item 91 
>>>> key (484129 108 19628032) itemoff 13971 itemsize 53
>>>> 2022-12-26T07:44:45.000000+01:00 server02 kernel - - - 
>>>> \x09\x09extent data disk bytenr 10665835618304 nr 32768
>>>> 2022-12-26T07:44:45.000000+01:00 server02 kernel - - - 
>>>> \x09\x09extent data offset 0 nr 32768 ram 32768
>>>> 2022-12-26T07:44:45.000000+01:00 server02 kernel - - - \x09item 92 
>>>> key (484129 108 21266432) itemoff 13918 itemsize 53
>>>> 2022-12-26T07:44:45.000000+01:00 server02 kernel - - - 
>>>> \x09\x09extent data disk bytenr 10661222666240 nr 32768
>>>> 2022-12-26T07:44:45.000000+01:00 server02 kernel - - - 
>>>> \x09\x09extent data offset 0 nr 32768 ram 32768
>>>> 2022-12-26T07:44:45.000000+01:00 server02 kernel - - - \x09item 93 
>>>> key (484129 108 22740992) itemoff 13865 itemsize 53
>>>> 2022-12-26T07:44:45.000000+01:00 server02 kernel - - - 
>>>> \x09\x09extent data disk bytenr 10665565814784 nr 32768
>>>> 2022-12-26T07:44:45.000000+01:00 server02 kernel - - - 
>>>> \x09\x09extent data offset 0 nr 32768 ram 32768
>>>> 2022-12-26T07:44:45.000000+01:00 server02 kernel - - - \x09item 94 
>>>> key (484129 108 23101440) itemoff 13812 itemsize 53
>>>> 2022-12-26T07:44:45.000000+01:00 server02 kernel - - - 
>>>> \x09\x09extent data disk bytenr 10665836371968 nr 32768
>>>> 2022-12-26T07:44:45.000000+01:00 server02 kernel - - - 
>>>> \x09\x09extent data offset 0 nr 32768 ram 32768
>>>> 2022-12-26T07:44:45.000000+01:00 server02 kernel - - - \x09item 95 
>>>> key (484129 108 24084480) itemoff 13759 itemsize 53
>>>> 2022-12-26T07:44:45.000000+01:00 server02 kernel - - - 
>>>> \x09\x09extent data disk bytenr 10665836404736 nr 32768
>>>> 2022-12-26T07:44:45.000000+01:00 server02 kernel - - - 
>>>> \x09\x09extent data offset 0 nr 32768 ram 32768
>>>> 2022-12-26T07:44:45.000000+01:00 server02 kernel - - - \x09item 96 
>>>> key (484129 108 24150016) itemoff 13706 itemsize 53
>>>> 2022-12-26T07:44:45.000000+01:00 server02 kernel - - - 
>>>> \x09\x09extent data disk bytenr 10665849159680 nr 32768
>>>> 2022-12-26T07:44:45.000000+01:00 server02 kernel - - - 
>>>> \x09\x09extent data offset 0 nr 32768 ram 32768
>>>> 2022-12-26T07:44:45.000000+01:00 server02 kernel - - - \x09item 97 
>>>> key (484129 108 24313856) itemoff 13653 itemsize 53
>>>> 2022-12-26T07:44:45.000000+01:00 server02 kernel - - - 
>>>> \x09\x09extent data disk bytenr 10665849192448 nr 32768
>>>> 2022-12-26T07:44:45.000000+01:00 server02 kernel - - - 
>>>> \x09\x09extent data offset 0 nr 32768 ram 32768
>>>> 2022-12-26T07:44:45.000000+01:00 server02 kernel - - - \x09item 98 
>>>> key (484147 1 0) itemoff 13493 itemsize 160
>>>> 2022-12-26T07:44:45.000000+01:00 server02 kernel - - - 
>>>> \x09\x09inode generation 45 size 886 mode 40755
>>>> 2022-12-26T07:44:45.000000+01:00 server02 kernel - - - \x09item 99 
>>>> key (484147 72 4) itemoff 13485 itemsize 8
>>>> 2022-12-26T07:44:45.000000+01:00 server02 kernel - - - \x09item 100 
>>>> key (484147 72 27) itemoff 13477 itemsize 8
>>>> 2022-12-26T07:44:45.000000+01:00 server02 kernel - - - \x09item 101 
>>>> key (484147 72 35) itemoff 13469 itemsize 8
>>>> 2022-12-26T07:44:45.000000+01:00 server02 kernel - - - \x09item 102 
>>>> key (484147 72 40) itemoff 13461 itemsize 8
>>>> 2022-12-26T07:44:45.000000+01:00 server02 kernel - - - \x09item 103 
>>>> key (484147 72 45) itemoff 13453 itemsize 8
>>>> 2022-12-26T07:44:45.000000+01:00 server02 kernel - - - \x09item 104 
>>>> key (484147 72 52) itemoff 13445 itemsize 8
>>>> 2022-12-26T07:44:45.000000+01:00 server02 kernel - - - BTRFS error 
>>>> (device sda2): block=203366612992 write time tree block corruption 
>>>> detected
>>>> 2022-12-26T07:44:45.000000+01:00 server02 kernel - - - BTRFS: error 
>>>> (device sda2: state AL) in free_log_tree:3284: errno=-5 IO failure
>>>> 2022-12-26T07:44:45.000000+01:00 server02 kernel - - - BTRFS info 
>>>> (device sda2: state EAL): forced readonly
>>>> 2022-12-26T07:44:45.000000+01:00 server02 kernel - - - BTRFS 
>>>> warning (device sda2: state EAL): Skipping commit of aborted 
>>>> transaction.
>>>> 2022-12-26T07:44:45.000000+01:00 server02 kernel - - - BTRFS: error 
>>>> (device sda2: state EAL) in cleanup_transaction:1958: errno=-5 IO 
>>>> failure
>>>>
>>>>
>>>> There are no SSD access errors in the kernel logs. Smart data for 
>>>> the SSD is normal. I also did a 12 hour memtest to rule out bad RAM.
>>>>
>>>> The filesystem consists of a single 480GB SATA SSD (Corsair Neutron 
>>>> XTI). The problems occurs only on one machine.
>>>>
>>>> The error appears about every few days and seems to be triggered by 
>>>> a cspecially under high cpu utilization combined with some disk IO. 
>>>> CPU temperature never exceeds 60 degrees.
>>>
>>> See the ticket for more details.
>>>
>>> For the record, the issue is apparently different from the 6.2-rc
>>> regression currently discussed, as stated here:
>>> https://lore.kernel.org/lkml/462e7bd3-d1f2-3718-fde9-77b418e9fd91@gmx.com/ 
>>>
>>>
>>> BTW, let me use this mail to also add the report to the list of tracked
>>> regressions to ensure it's doesn't fall through the cracks:
>>>
>>> #regzbot introduced: v6.0..v6.1
>>> https://bugzilla.kernel.org/show_bug.cgi?id=216851
>>> #regzbot title: btrfs: write time corrupting for log tree in 6.1
>>> #regzbot ignore-activity
>>
>> #regzbot fix: 'btrfs: fix false alert on bad tree level check'
>
> Oh no, this is a different one, this one is not level mismatch.
>
> Thanks,
> Qu

Hi,

Here the logging from another crash, this time on kernel 6.1.3, about 1 
hour after boot. Again during high CPU usage combined with lots of io.

[ 1989.025015] BTRFS critical (device sda2): corrupt leaf: 
root=18446744073709551610 block=574078976 slot=70, bad key order, prev 
(484119 96 1328571) current (484119 96 1328553)
[ 1989.025022] BTRFS info (device sda2): leaf 574078976 gen 5089233 
total ptrs 108 free space 10370 owner 18446744073709551610
[ 1989.025024]  item 0 key (484119 1 0) itemoff 16123 itemsize 160
[ 1989.025025]          inode generation 45 size 2198 mode 40700
[ 1989.025026]  item 1 key (484119 12 484118) itemoff 16097 itemsize 26
[ 1989.025027]  item 2 key (484119 72 15) itemoff 16089 itemsize 8
[ 1989.025027]  item 3 key (484119 72 20) itemoff 16081 itemsize 8

...

[ 1989.025135]  item 105 key (484147 1 0) itemoff 13086 itemsize 160
[ 1989.025137]          inode generation 45 size 886 mode 40755
[ 1989.025138]  item 106 key (484147 72 4) itemoff 13078 itemsize 8
[ 1989.025139]  item 107 key (484147 72 27) itemoff 13070 itemsize 8
[ 1989.025140] BTRFS error (device sda2): block=574078976 write time 
tree block corruption detected
[ 1989.053710] BTRFS: error (device sda2: state AL) in 
free_log_tree:3284: errno=-5 IO failure
[ 1989.053717] BTRFS info (device sda2: state EAL): forced readonly
[ 1989.055442] BTRFS warning (device sda2: state EAL): Skipping commit 
of aborted transaction.
[ 1989.055444] BTRFS: error (device sda2: state EAL) in 
cleanup_transaction:1958: errno=-5 IO failure

Thanks in advance,

David Arendt