Date: Tue, 18 Dec 2007 09:36:19 +1100 From: Antony Mawer <fbsd-hackers@mawer.org> To: Peter Jeremy <peterjeremy@optushome.com.au> Cc: Yuri <yuri@rawbw.com>, freebsd-hackers@freebsd.org Subject: Re: Stale mount on disconnected device: how to delete it? Message-ID: <4766F9E3.9070304@mawer.org> In-Reply-To: <20071217180921.GM85797@server.vk2pj.dyndns.org> References: <1197889622.4766585626a92@webmail.rawbw.com> <20071217180921.GM85797@server.vk2pj.dyndns.org>
next in thread | previous in thread | raw e-mail | index | archive | help
On 18/12/2007 5:09 AM, Peter Jeremy wrote:
> On Mon, Dec 17, 2007 at 03:07:02AM -0800, Yuri wrote:
>> I had USB camera connected and recognized as umass0 and mounted as /mnt/camera
>> on /dev/da0s1.
>>
>> Camera was disconnected while it was still mounted.
>
> This triggers known and extremely painful to fix bugs in FreeBSD.
> Your best work-around is to use ports/emulators/mtools rather than
> mount_msdosfs to to access removable devices.
Every time this comes up it's branded with the "really hard to fix"
message, but I seem to recall the last time this came up Matt Dillon
chimed in and said he'd managed to fix it in Dragonfly without too much
pain.
I had a browse back a while ago at the commits on DF to try and pinpoint
the changes that were required to see how practical they were to bring
across to FreeBSD; I don't profess to be an expert and have yet to
investigate the changes in any detail, but these were the commits I
identified:
http://freshbsd.org/2007/06/14/03/55/27
http://freshbsd.org/2007/06/17/06/08/52
http://freshbsd.org/2007/06/14/02/09/30
http://freshbsd.org/2007/06/13/21/58/38
http://freshbsd.org/2007/06/13/21/53/39
If someone else is interested in looking at this, it may provide a
useful starting point...
--Antony
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?4766F9E3.9070304>