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Message-ID: <bug-76261-13602-OIvDEwhnhj@https.bugzilla.kernel.org/>
Date:	Mon, 19 May 2014 03:41:21 +0000
From:	bugzilla-daemon@...zilla.kernel.org
To:	linux-ext4@...r.kernel.org
Subject: [Bug 76261] ext4_da_writepages err -30 after remount ro during
 shutdown

https://bugzilla.kernel.org/show_bug.cgi?id=76261

--- Comment #12 from kun.chen <kun.chen@...iatek.com> ---
Hi Theodore,

How about these informations in the kmsg:

[76.209728]-(3)[1:init]SysRq: -(3)[1:init]Emergency Remount R/O
[76.282979] (3)[21:kworker/3:0]Emergency Remount Complete
......
[80.272068] (3)[3075:kworker/u8:5]EXT4-fs (mmcblk0p15): ext4_da_writepages:
jbd2_start: 1024 pages, ino 131067; err -30
......
[85.407025] (1)[3075:kworker/u8:5]EXT4-fs (mmcblk0p15): ext4_da_writepages:
jbd2_start: 1024 pages, ino 131067; err -30
......
[90.601634] (0)[3075:kworker/u8:5]EXT4-fs (mmcblk0p15): ext4_da_writepages:
jbd2_start: 1024 pages, ino 131067; err -30

"ext4_da_writepages: jbd2_start: 1024 pages, ino 131067; err -30" was presented
every 5 seconds, so means these dirty pages old than 30 seconds? If so, these
datas were written before shutdown, but did not be written out after sync() and
emergency_remount(), does it normal?

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