http://oss.sgi.com/bugzilla/show_bug.cgi?id=202
------- Additional Comments From xhejtman@xxxxxxxxxxxxxxxxx 2002-12-10 17:26
-------
I've changed xfs_sync in xfs_vfsops.c in sources to print some info whenever it
is called. So I've started X server and gnome (in single user mode it seems to
work correctly, no data corruption) and edited xfs-test file. Then I watched
logs:
Dec 11 02:11:26 hell kernel: XFS Sync called with flag BDFLUSH ATTR FSDATA
Dec 11 02:12:16 hell kernel: XFS Sync called with flag BDFLUSH ATTR FSDATA
Dec 11 02:12:51 hell kernel: XFS Sync called with flag BDFLUSH ATTR FSDATA
Dec 11 02:12:56 hell kernel: XFS Sync called with flag BDFLUSH ATTR FSDATA
Dec 11 02:13:01 hell kernel: XFS Sync called with flag BDFLUSH ATTR FSDATA
Dec 11 02:14:11 hell kernel: XFS Sync called with flag BDFLUSH ATTR FSDATA
The first you could see -- not each 30 seconds the flush is done. I've edited
xfs-test file at 02:11:30. Then I've waited till 02:14:11 and unpluged power.
After reboot as expected xfs-test contained just binary nulls. Is THAT OK?
(There was no high load or i/o traffic that could delayed bdflush. The thing
I've noticed -- after start it really do sync more often than 30 secs. But after
some apps are started it slows down. Do not know why.)
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