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kern/40472: umounting an async fs fails
>Synopsis: umounting an async fs fails
>Arrival-Date: Sun Jan 25 09:40:00 +0000 2009
>Originator: Bernd Ernesti
>Release: NetBSD 5.99.7 22-01-2009
System: NetBSD 5.99.7
I have a async mounted filesystem which can't be unmounted, even
if it has no files on it, just after a newfs -O 2
That fs is mounted on top of a wapbl fs.
Use the following /etc/fstab entries and boot with it:
/dev/raid0h /source ffs rw,log 1 3
/dev/wd2e /source/work ffs rw,async 1 3
The root fs is also a wapbl fs.
and notice that it doesn't return.
USER PID %CPU %MEM VSZ RSS TTY STAT STARTED TIME COMMAND UID PID
PPID CPU PRI NI VSZ RSS WCHAN STAT TTY TIME COMMAND
root 560 99.0 0.0 748 736 ttyp0 O+ 10:01AM 19:05.90 umount 0 560
492 36864 76 0 748 736 - O+ ttyp0 19:05.90 umount
mount shows that the filesystem is gone, but a reboot still prints that
it tries to unmount this filesystem and hangs there.
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