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Re: kern/40474: Kernel panic after remounting raid root with softdep
The following reply was made to PR kern/40474; it has been noted by GNATS.
From: Andrew Doran <ad%netbsd.org@localhost>
To: David Holland <dholland-bugs%netbsd.org@localhost>
Cc: kivinen%iki.fi@localhost, kern-bug-people%netbsd.org@localhost,
Subject: Re: kern/40474: Kernel panic after remounting raid root with softdep
Date: Sun, 25 Jan 2009 21:40:58 +0000
On Sun, Jan 25, 2009 at 09:07:55PM +0000, David Holland wrote:
> On Sun, Jan 25, 2009 at 11:05:00AM +0000, kivinen%iki.fi@localhost wrote:
> > The system has mirrored raid as root, and when I boot it up
> > and then run mount -o softdep -u / the command works, but after
> > that next time I start "vi" the machine panics. The mount
> > command does not show that the softdep took effect (i.e
> > it still list options as local), and if I can still
> > run some other programs from the root filesystem. The
> > file edited with vi does not matter, and crash happens
> > even if no file is given. If this is tried on the second
> > (non root disk) then this does not happen, even if the
> > vi binary is copied to the other disk (i.e. mount the
> > another disk without softdep, remount it with -u -o softdep
> > and then try to run vi from there do work).
> > I assume this might be related to somehow to the way
> > vi creates temp files or something.
> I'm pretty sure turning softdep on after mount is a known problem,
Yes, and turning it off.
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