[8139] in linux-scsi channel archive
Re: [PATCH] scsi reset from user space
daemon@ATHENA.MIT.EDU (James Bottomley)
Mon Feb 21 19:22:39 2000
Message-Id: <200002212222.QAA01287@jb96514.napervilleil.ncr.com>
To: Ricky Beam <jfbeam@bluetopia.net>
Cc: linux-scsi@vger.rutgers.edu
In-reply-to: Your message of "Mon, 21 Feb 2000 11:16:30 EST."
<Pine.LNX.4.04.10002211057030.12259-100000@beaker>
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Date: Mon, 21 Feb 2000 16:22:42 -0600
From: James Bottomley <James.Bottomley@columbiasc.ncr.com>
jfbeam@bluetopia.net said:
> This is indeed an invaluable feature... there are all sorts of reasons
> to want to reset a single device or entire bus of an active scsi card.
> HOWEVER, serious care must be taken in allowing this.
[...]
> If userland applications can request target and/or bus resets, then
> there needs to be a mechanism for userland applications to request
> that others DON'T do these actions. (This redefines "bloody mess."
> :-))
Doug Gilbert put in a check to prevent anyone other than root from issuing a
reset. I believe this is sufficient, since philosophically UNIX doesn't
usually have checks to prevent root from blowing their foot off.
James Bottomley
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