Re: Annoying SCSI waiting...

From: Scott Long <scottl_at_freebsd.org>
Date: Fri, 22 Oct 2004 13:46:30 -0600
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
Received on Fri Oct 22 2004 - 17:48:11 UTC

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