From: Meelis Roos <mroos@linux.ee>
To: linux-alpha@vger.kernel.org, LKML <linux-kernel@vger.kernel.org>,
linux-block@vger.kernel.org, Jan Kara <jack@suse.cz>
Subject: Re: ext4 corruption on alpha with 4.20.0-09062-gd8372ba8ce28
Date: Fri, 15 Feb 2019 18:59:48 +0200 [thread overview]
Message-ID: <076b8b72-fab0-ea98-f32f-f48949585f9d@linux.ee> (raw)
In-Reply-To: <1c26eab4-3277-9066-5dce-6734ca9abb96@linux.ee>
>> I have noticed ext4 filesystem corruption on two of my test alphas with 4.20.0-09062-gd8372ba8ce28.
>
> Retried it, still happens with 5.0.0-rc5-00358-gdf3865f8f568 - rsync of emerge --sync just fail with nothing in dmesg.
Finished second round of bisecting, first round did not get me far enough so
I may still have false "goods" in my bisection history.
The command I used for bisecting was Gentoos
emerge --sync.
that sometimes failed from error -6 or -11 from rsync.
Usually the file system corruption did not happen and nothing was in dmesg, just file IO error from rsync.
The result of the bisection is
[88dbcbb3a4847f5e6dfeae952d3105497700c128] blkdev: avoid migration stalls for blkdev pages
Is that result relevant for the problem or should I continue bisecting between 4.20.0 and the so far first bad commit?
>> On AlphaServer DS10:
>> [10749.664418] EXT4-fs error (device sda2): __ext4_iget:5052: inode #1853093: block 1: comm rsync: invalid block
>>
>> On AlphaServer DS10L:
>> [ 5325.064656] EXT4-fs error (device sda2): htree_dirblock_to_tree:1007: inode #1191951: block 4731728: comm rm: bad entry in directory: directory entry overrun - offset=76, inode=417080, rec_len=61816, name_len=35, size=4096
>> [ 5325.069539] EXT4-fs error (device sda2): htree_dirblock_to_tree:1007: inode #1191951: block 4731728: comm rm: bad entry in directory: directory entry overrun - offset=76, inode=417080, rec_len=61816, name_len=35, size=4096
>> [ 5325.077351] EXT4-fs error (device sda2): ext4_empty_dir:2718: inode #1191951: block 4731728: comm rm: bad entry in directory: directory entry overrun - offset=76, inode=417080, rec_len=61816, name_len=35, size=4096
>>
>> Two other alphas, PC-164 and Eiger, worked fine with the same kernel version (different kernel configs according to hardware).
>>
>> The details:
>> 4.20 worked fine, with gentoo emerge package update after bootup.
>> Next, 4.20.0-06428-g00c569b567c7 worked fine, with gentoo emerge after bootup.
>> Next, 4.20.0-09062-gd8372ba8ce28 booted up fine but rsync and rm during start of gentoo emerge errored out like above.
>>
>> So the corruption _might_ have happened during bootup of previous kernel but it looks more likely that only the latest kernel with blk-mq introduced the problems. mq-deadline is in use on all the alphas.
>>
>> DS10 has Symbios 53C896 SCSI (sym2 driver), DS10L has QLogic ISP1040, so they are different. Working Eiger and PC164 have sym2 based scsi controllers too.
>
--
Meelis Roos <mroos@linux.ee>
next prev parent reply other threads:[~2019-02-15 16:59 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <fb63a4d0-d124-21c8-7395-90b34b57c85a@linux.ee>
2019-02-10 20:27 ` ext4 corruption on alpha with 4.20.0-09062-gd8372ba8ce28 Meelis Roos
2019-02-15 16:59 ` Meelis Roos [this message]
2019-02-16 17:45 ` Theodore Y. Ts'o
2019-02-16 22:29 ` Meelis Roos
2019-02-18 12:02 ` Jan Kara
2019-02-18 12:37 ` Meelis Roos
2019-02-19 12:17 ` Meelis Roos
2019-02-19 13:20 ` Jan Kara
2019-02-19 13:49 ` Meelis Roos
2019-02-19 14:44 ` Matthew Wilcox
2019-02-20 6:31 ` Meelis Roos
2019-02-20 9:48 ` Jan Kara
2019-02-20 23:23 ` Meelis Roos
2019-02-21 13:29 ` Jan Kara
2022-08-25 15:05 ` matoro
2022-08-26 10:55 ` Jan Kara
2022-08-26 11:04 ` Vlastimil Babka
2022-08-26 16:16 ` matoro
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