|> hi,
|>
|> maybe i am wrong, but I really can't find any other process runing.
|>
|> my step is:
|> 1) "/" and "/usr" are busy
|> 2) shut down to single user mode
|> 3) "/" still busy
|> 4) "/usr" can be unmounted, but can't mount -o ro,remount /usr, show busy error.
|> 5) umount -a, after this, only /proc and / exist.
|> 6) mount -o ro,remount /, show busy error.
|>
|> I have mentioned I have used "ps aux" to check the process list,
|> there are no user process left. except the following: (repost)
|> root 1 0.1 0.7 1056 484 ? S 15:46 0:04 init [S]
|> root 2 0.0 0.0 0 0 ? SW 15:46 0:00 [keventd]
|> root 3 0.0 0.0 0 0 ? SWN 15:46 0:00 [ksoftirqd_CPU0]
|> root 4 0.0 0.0 0 0 ? SW 15:46 0:00 [kswapd]
|> root 5 0.0 0.0 0 0 ? SW 15:46 0:00 [bdflush]
|> root 6 0.0 0.0 0 0 ? SW 15:46 0:00 [kupdated]
|> root 1042 0.0 0.7 1056 484 tty1 S 16:33 0:00 init [S]
|> root 1043 0.6 1.5 1840 1004 tty1 S 16:33 0:00 /bin/sh
|> root 1045 0.0 1.0 2260 680 tty1 R 16:33 0:00 ps aux
|>
|> and I also checked by fuser -v /usr,
|> only used by kernel.
|> and fuser -c /, show many process list above.
|>
|> If i have a mistake, would you like to tell me where is the mistake?
Check for references to deleted files (/proc/*/fd). "init u" should help.
Andreas.
-- Andreas Schwab, SuSE Labs, schwab@suse.de SuSE GmbH, Deutschherrnstr. 15-19, D-90429 Nürnberg Key fingerprint = 58CA 54C7 6D53 942B 1756 01D3 44D5 214B 8276 4ED5 "And now for something completely different." - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/