https://bugzilla.novell.com/show_bug.cgi?id=811339
https://bugzilla.novell.com/show_bug.cgi?id=811339#c4
Jan Kara changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |NEEDINFO
InfoProvider| |fedev@gmx.net
--- Comment #4 from Jan Kara 2013-08-14 11:53:29 UTC ---
Well, that's not very surprising. You can see who is dirtying inodes by doing
(as root):
echo 1 >/sys/kernel/debug/tracing/events/ext4/ext4_mark_inode_dirty/enable
and then running 'cat /sys/kernel/debug/tracing/trace_pipe'. For catching
processes doing writes you can enable 'ext4_write_begin' tracepoint using:
echo 1 >/sys/kernel/debug/tracing/events/ext4/ext4_write_begin/enable
I think you will see processes like cron, postfix, firefox, ... dirtying inodes
or doing writes and jbd2 thread is just sending dirty inodes etc. to disk.
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