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Date:      Mon, 04 Jul 2005 19:24:29 +0200
From:      =?ISO-8859-1?Q?Bj=F6rn_K=F6nig?= <bkoenig@cs.tu-berlin.de>
To:        Andre Guibert de Bruet <andy@siliconlandmark.com>
Cc:        Yuriy Tsibizov <Yuriy.Tsibizov@gfk.ru>, current@freebsd.org
Subject:   Re: Fatal trap 12 if you unmount detached umass device
Message-ID:  <42C970CD.9070905@cs.tu-berlin.de>
In-Reply-To: <20050703124901.M80892@lexi.siliconlandmark.com>
References:  <20050703112108.F474@free.home.local> <20050703124901.M80892@lexi.siliconlandmark.com>

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Andre Guibert de Bruet wrote:

> 1. Don't do that

It concerns not only USB drives, but any kind of removable media, even 
floppy disks. A lot of people tend to remove floppy disks without 
unmounting the filesystem before and I think it's unacceptable to let 
users reboot their machine if they did this mistake.

> (If you're going to do it, try umount -f).

... which causes the death of a machine if you do this twice.


I prepared myself to step into the source code next month to eliminate 
this annoying behaviour.

Regards
Björn



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