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From: bugzilla-daemon@bugzilla.kernel.org
To: linux-ext4@vger.kernel.org
Subject: [Bug 76261] ext4_da_writepages err -30 after remount ro during shutdown
Date: Fri, 16 May 2014 01:50:01 +0000	[thread overview]
Message-ID: <bug-76261-13602-sUVTjLewx2@https.bugzilla.kernel.org/> (raw)
In-Reply-To: <bug-76261-13602@https.bugzilla.kernel.org/>

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

--- Comment #2 from kun.chen <kun.chen@mediatek.com> ---
You can refer this:
https://android.googlesource.com/platform/system/core/+/master/libcutils/android_reboot.c
During shutdown in android, it realy will goto emergency_remount() flow. 

And from the ksmg log, it seems ext4 writeback continued almost 15 seconds
after emergency_remount() completed. Not sure why still has so many writeback
occurs, even it used emergency_remount(), still has so many writeback occurs,
and takes so long time, this will lead to shutdown hang or delay

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  parent reply	other threads:[~2014-05-16  1:50 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-05-15  5:01 [Bug 76261] New: ext4_da_writepages err -30 after remount ro during shutdown bugzilla-daemon
2014-05-15 15:11 ` [Bug 76261] " bugzilla-daemon
2014-05-16  1:50 ` bugzilla-daemon [this message]
2014-05-16  3:32 ` bugzilla-daemon
2014-05-16  3:36 ` bugzilla-daemon
2014-05-16  3:47 ` bugzilla-daemon
2014-05-16  3:49 ` bugzilla-daemon
2014-05-16  3:52 ` bugzilla-daemon
2014-05-16  4:27 ` bugzilla-daemon
2014-05-16  5:10 ` bugzilla-daemon
2014-05-16 12:11 ` bugzilla-daemon
2014-05-16 13:44 ` bugzilla-daemon
2014-05-19  3:41 ` bugzilla-daemon
2014-05-19 12:46 ` bugzilla-daemon
2014-05-19 13:41 ` bugzilla-daemon
2016-08-03  2:10 ` bugzilla-daemon
2016-08-03  2:34 ` bugzilla-daemon
2016-08-03  2:39 ` bugzilla-daemon
2016-08-03  3:14 ` bugzilla-daemon

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