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Date:   Mon, 2 Jan 2023 16:40:50 +0100
From:   David Sterba <dsterba@suse.cz>
To:     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>
Subject: Re: [regression] =?iso-8859-1?Q?Bug=A02168?= =?iso-8859-1?Q?51?= -
 btrfs write time corrupting for log tree
Message-ID: <20230102154050.GJ11562@twin.jikos.cz>
Reply-To: dsterba@suse.cz
References: <ae169fc6-f504-28f0-a098-6fa6a4dfb612@leemhuis.info>
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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'