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Date: Fri, 20 Jun 2003 01:35:58 +1000
From: Tim Robbins <tjr@FreeBSD.ORG>
To: NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>
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	from nakaji@tutrp.tut.ac.jp on Tue, Jun 17, 2003 at 09:16:51PM +0900
cc: freebsd-current@freebsd.org
Subject: Re: mount_ntfs causes panic
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On Tue, Jun 17, 2003 at 09:16:51PM +0900, NAKAJI Hiroyuki wrote:

> I updated my laptop kernel to 5.1-CURRENT and got into trouble.
> 
> FreeBSD mebius 5.1-CURRENT FreeBSD 5.1-CURRENT #1: Tue Jun 17 09:36:21 JST 2003     root@mebius:/usr/obj/usr/src/sys/GENERIC  i386
> 
> This laptop also runs Windows 2000 whose filesystem is NTFS and this
> NTFS part is mounted from FreeBSD with read-only.
> 
> /etc/fstab:
> /dev/ad0s2      /mnt/winnt      ntfs    ro,noauto       0       0
> 
> When "mount /mnt/winnt", the system falls into DDB.

This looks like a bug in the buffer cache code. I'm working on trying to fix
it. Mounting read-write instead of read-only ought to work around the problem,
but it's probably not very safe.


Tim