Date: Fri, 22 Oct 2004 13:46:30 -0600 From: Scott Long <scottl@freebsd.org> To: Brooks Davis <brooks@one-eyed-alien.net> Cc: Andre Oppermann <andre@freebsd.org> Subject: Re: Annoying SCSI waiting... Message-ID: <41796396.5070804@freebsd.org> In-Reply-To: <20041022194008.GA23778@odin.ac.hmc.edu> References: <417960C2.8040007@freebsd.org> <20041022194008.GA23778@odin.ac.hmc.edu>
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Brooks Davis wrote: > On Fri, Oct 22, 2004 at 09:34:26PM +0200, 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. >> >>It really annoys the hell out of me waiting the 15 seconds for nothing >>each time I boot the GENERIC kernel for testing. Sure I can change >>that in the kernel config but then it's modified. Any why take 15 >>seconds of everyone if only a very few actually need it (those with >>stone-age disk drives)? > > > Since I added tunables a while back, it should be safe to remove the > setting from GENERIC entierly, at least in CURRENT. The default is > 2 seconds and works fine for most applications. You can always set > kern.cam.scsi_delay to a different value in the loader if you have > devices that need more time. > > -- Brooks > > -- > Any statement of the form "X is the one, true Y" is FALSE. > PGP fingerprint 655D 519C 26A7 82E7 2529 9BF0 5D8E 8BE9 F238 1AD4 This is not just a problem with old disk drives, it's a problem with some cdrom and many tape drives. Maybe it can be set to 15 only if the sa, cd, and/or ch drivers are present. That still doesn't solve the problem with GENERIC, and I would like to keep GENERIC as compatible as possible. Scott
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