Date: Fri, 22 Oct 2004 14:21:17 -0600 From: Scott Long <scottl@freebsd.org> To: Julian Elischer <julian@elischer.org> Cc: Andre Oppermann <andre@freebsd.org> Subject: Re: Annoying SCSI waiting... Message-ID: <41796BBD.1010501@freebsd.org> In-Reply-To: <41796757.5000500@elischer.org> References: <417960C2.8040007@freebsd.org> <41796757.5000500@elischer.org>
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Julian Elischer wrote: > > > Andre Oppermann wrote: > >> Can't we just reduce the annoying: >> >> Waiting 15 second for SCSI devices to settle >> >> to something shorter like 5 seconds in GENERIC? I know perfectly well >> where it >> came from but these days not many of those slow disks are still around. > > > > Actually I'll wager money you DON'T know where it came from because it's > really obscure :-) > > When I wrote the original SCSI code I wrote it for MACH and only later > did I port it to 386BSD > from which it went to FreeBSD (and is still in NetBSD I believe). I > originally selected 15 seconds > because it was needed by an AEG SCSI neural net based OCR/ICR character > recognition engine > we used to use with MACH. > > I set it to 3 seconds on my systems.. > I won't argue that it orginated there, but it's also been quite convenient for tape drives, cdroms, and changers. I usually modify the timeout except for systems that have this. Scott
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