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Date:      Sat, 15 Jun 2002 11:07:29 +0400 (MSD)
From:      Dmitry Sivachenko <demon@FreeBSD.org>
To:        FreeBSD-gnats-submit@FreeBSD.org
Subject:   kern/39322: Strange detection of IDE CDROM
Message-ID:  <200206150707.g5F77Tq1000265@mitya.mitya.static.dol.ru>

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>Number:         39322
>Category:       kern
>Synopsis:       Strange detection of IDE CDROM
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Sat Jun 15 00:10:02 PDT 2002
>Closed-Date:
>Last-Modified:
>Originator:     Dmitry Sivachenko
>Release:        FreeBSD 4.6-RC i386
>Organization:
>Environment:
System: FreeBSD mitya.mitya.static.dol.ru 4.6-RC FreeBSD 4.6-RC #0: Fri Jun 14 20:49:48 MSD 2002 mitya@mitya.mitya.static.dol.ru:/usr/obj/usr/src/sys/CAVIA i386


	
>Description:

During system boot, detection of my CDROM looks like this (from dmesg):

ad0: 13042MB <WDC WD136BA> [26500/16/63] at ata0-master UDMA33
ata1-master: timeout waiting for cmd=ef s=10 e=00
acd0: MODE_SENSE_BIG command timeout - resetting
ata1: resetting devices .. done
acd0: MODE_SENSE_BIG command timeout - resetting
ata1: resetting devices .. done
acd0: MODE_SENSE_BIG command timeout - resetting
ata1: resetting devices .. done
acd0: MODE_SENSE_BIG command timeout - resetting
ata1: resetting devices .. done
acd0: MODE_SENSE_BIG command timeout - resetting
ata1: resetting devices .. done
acd0: MODE_SENSE_BIG command timeout - resetting
ata1: resetting devices .. done
acd0: MODE_SENSE_BIG command timeout - resetting
ata1: resetting devices .. done
acd0: MODE_SENSE_BIG command timeout - resetting
ata1: resetting devices .. done
acd0: MODE_SENSE_BIG command timeout - resetting
ata1: resetting devices .. done
acd0: MODE_SENSE_BIG command timeout - resetting
ata1: resetting devices .. done
acd0: MODE_SENSE_BIG command timeout - resetting
ata1: resetting devices .. done
acd0: MODE_SENSE_BIG command timeout - resetting
ata1: resetting devices .. done
acd0: MODE_SENSE_BIG command timeout - resetting
ata1: resetting devices .. done
acd0: MODE_SENSE_BIG command timeout - resetting
ata1: resetting devices .. done
acd0: MODE_SENSE_BIG command timeout - resetting
ata1: resetting devices .. done
acd0: MODE_SENSE_BIG command timeout - resetting
ata1: resetting devices .. done
acd0: MODE_SENSE_BIG command timeout - resetting
ata1: resetting devices .. done
acd0: MODE_SENSE_BIG command timeout - resetting
ata1: resetting devices .. done
acd0: MODE_SENSE_BIG command timeout - resetting
ata1: resetting devices .. done
acd0: MODE_SENSE_BIG command timeout - resetting
ata1: resetting devices .. done
acd0: CDROM <MATSHITA CR-574> at ata1-master BIOSPIO
Waiting 15 seconds for SCSI devices to settle

This process lasts several minutes.  With 4.5-RELEASE, booting on the same
hardware produced only 4 such timeouts and was much faster:

ata0-master: DMA limited to UDMA33, non-ATA66 compliant cable
ad0: 13042MB <WDC WD136BA> [26500/16/63] at ata0-master UDMA33
ad1: 4110MB <QUANTUM FIREBALL ST4.3A> [14848/9/63] at ata0-slave UDMA33
ata1-master: timeout waiting for command=ef s=00 e=15
(null): MODE_SENSE_BIG command timeout - resetting
ata1: resetting devices .. done
(null): MODE_SENSE_BIG command timeout - resetting
ata1: resetting devices .. done
(null): MODE_SENSE_BIG command timeout - resetting
ata1: resetting devices .. done
(null): MODE_SENSE_BIG command timeout - resetting
ata1: resetting devices .. done
acd0: CDROM <MATSHITA CR-574> at ata1-master using BIOSPIO
Waiting 15 seconds for SCSI devices to settle

Please revert this at least to former behaviour, waiting for 10+ minutes
to boot is too long...
>How-To-Repeat:
	
>Fix:

	


>Release-Note:
>Audit-Trail:
>Unformatted:

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