Re: Of removable devices

From: Oliver Neukum (Oliver.Neukum@lrz.uni-muenchen.de)
Date: Thu Feb 17 2000 - 09:32:24 EST


Am Don, 17 Feb 2000 schrieben Sie:
> In <00021622461203.00298@chani> Oliver Neukum (Oliver.Neukum@lrz.uni-muenchen.de) wrote:
> > Am Mit, 16 Feb 2000 schrieben Sie:
> >> To add my own $0.02 ...
<SNIP>
> >> This solution works pretty well.
> >> It is clean ( IMHO ).
> >> Doesn't require extra software.
> >> No danger of any corruptions. ( of kernel structures , like when the
> >> medium is
> >> ejected while still mounted ).
>
> > The kernel should be able to cope with a dead device, so pulling
> > the medium must be survivable.
>
> You should not be able to pull medium while it in use. This is true for
> CD-ROM, ZIP, MO and so on. This is not true only for "normal" floppies.
> Let them die.

That is becoming less true. The kernel has support for USB, firewire and PCMCIA.
Even so pulling the medium, or even device, isn't much different from a
headcrash on a harddisk. The filesystem can no longer be accessed.
I happen to think the kernel should survive a device's death unless it holds /.

        Oliver Neukum

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