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Date:      Thu, 19 Jul 2007 09:00:24 -0600 (MDT)
From:      "M. Warner Losh" <imp@bsdimp.com>
To:        LoN_Kamikaze@gmx.de
Cc:        josh@tcbug.org, freebsd-stable@freebsd.org, idiotbg@gmail.com
Subject:   Re: removing external usb hdd without unmounting causes reboot?
Message-ID:  <20070719.090024.-1548242272.imp@bsdimp.com>
In-Reply-To: <469F0B93.9020409@gmx.de>
References:  <200707181541.l6IFf4ht051775@lurza.secnetix.de> <469F0B93.9020409@gmx.de>

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In message: <469F0B93.9020409@gmx.de>
            "[LoN]Kamikaze" <LoN_Kamikaze@gmx.de> writes:
: Oliver Fromme wrote:
: > Momchil Ivanov wrote:
: >  > On Wednesday 18 July 2007 15:52:42 [LoN]Kamikaze wrote:
: >  > > Josh Paetzel wrote:
: >  > > > Yes, it's expected behavior.  The workaround is to not unplug mounted
: >  > > > devices. (There's nothing special about USB here, if you unplugged an
: >  > > > IDE drive you'd get the same behavior)
: >  > > 
: >  > > Wouldn't it make some sense not to panic if mounted devices that are in
: >  > > sync get removed? A few applications might get in trouble, but that's
: >  > > hardly a reason to bring a whole system down.
: >  > 
: >  > I don`t know how things work, but shutting down the system when some
: >  > mounted fs is no longer present seems like the wrong thing to me.
: > 
: > As Josh wrote, it's expected.  The problem is known
: > to exist for a long time already (probably as long
: > as FreeBSD itself exists), and if there was an easy
: > solution, certainly someone would have fixed it.
: 
: I remember on 5.3 I removed a mounted USB stick. The system did not panic, all
: I had to do was to plug the stick back in to be able to unmount it. So the
: behaviour has been more tolerant, in the past.

I'm pretty sure that 5.3 panics when you do this.  At least my 5.3
machine at work did last time I tried it, which was just last week.

Warner



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