Date: Thu, 19 Jul 2007 17:38:14 +0200 From: "[LoN]Kamikaze" <LoN_Kamikaze@gmx.de> To: "M. Warner Losh" <imp@bsdimp.com> Cc: baldur@foo.is, freebsd-stable@freebsd.org Subject: Re: removing external usb hdd without unmounting causes reboot? Message-ID: <469F8566.7030905@gmx.de> In-Reply-To: <20070719.084336.-749249732.imp@bsdimp.com> References: <200707181142.27240.idiotbg@gmail.com> <200707180839.50113.josh@tcbug.org> <20070718145954.GX36311@gremlin.foo.is> <20070719.084336.-749249732.imp@bsdimp.com>
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M. Warner Losh wrote: > In message: <20070718145954.GX36311@gremlin.foo.is> > Baldur Gislason <baldur@foo.is> writes: > : I vaguely remember being able to yank out USB drives in 5.x and just make > : usbd execute a forced umount without any problems. FAT32 drives mind you. > : On 6.2 I haven't even been able to unplug a USB drive even if I unmount it > : first, always results in a kernel panic. > > This has never worked. Not even on 5.x. Or 4.10. I've tested these > both recently accidentally... > > Warner As I mentioned earlier I remember it working during the 5.3 era on Stable, at some point it worked. I even remember removing my CD-Rom drive from my Thinkpad without running atacontrol detach. The system just took it and the drive just continued working after I put it back in. Anyway, is there a way to convince the kernel that removable devices are NFS mounts? I suppose there'd be an additional layer required that clusters file operations to consistent atomic operations similar to NFS.
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