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Date:      Wed, 4 Nov 1998 12:59:27 -0700 (MST)
From:      "Kenneth D. Merry" <ken@plutotech.com>
To:        Liviu.Ionescu@Romania.EU.net
Cc:        freebsd-bugs@FreeBSD.ORG, freebsd-gnats-submit@FreeBSD.ORG
Subject:   Re: kern/8555: boot panic with SONY SCSI CD-ROM CDU625-S 1.0r hooked
Message-ID:  <199811041959.MAA19486@panzer.plutotech.com>
In-Reply-To: <199811041700.JAA16984@freefall.freebsd.org> from Liviu Ionescu at "Nov 4, 98 09:00:01 am"

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Liviu Ionescu wrote...
>  I applied the patch and (bingo!) the kernel now boots without panic.
>  
>  the picture also changed a bit, the CD-ROM is listed now at 20.0MB/s.
>  
>  but when I try to mount a disc I get an error:
>  
>  boca# mount /dev/cd0c /mnt
>  mount: Input/output error
>  
>  and the syslog shows:
>  
>  Nov  4 19:50:03 boca /kernel: (cd0:ahc1:0:3:0): parity error during Command
>  phase.
>  Nov  4 19:50:03 boca /kernel: (cd0:ahc1:0:3:0): parity error during Command
>  phase.
>  Nov  4 19:50:03 boca /kernel: SEQADDR == 0x153
>  Nov  4 19:50:03 boca /kernel: SEQADDR == 0x153
>  Nov  4 19:50:03 boca /kernel: SCSIRATE == 0xf
>  Nov  4 19:50:03 boca /kernel: SCSIRATE == 0xf
>  Nov  4 19:50:12 boca /kernel: (cd0:ahc1:0:3:0): parity error during Command
>  phase.
>  Nov  4 19:50:12 boca /kernel: (cd0:ahc1:0:3:0): parity error during Command
>  phase.
>  Nov  4 19:50:12 boca /kernel: SEQADDR == 0x153
>  Nov  4 19:50:12 boca /kernel: SEQADDR == 0x153
>  Nov  4 19:50:12 boca /kernel: SCSIRATE == 0xf
>  Nov  4 19:50:12 boca /kernel: SCSIRATE == 0xf
>  
>  I also tried to remove the parity/termination jumpers from the Sony drive,
>  without success. anyway, I remember that exactly the same hardware
>  configuration worked fine with 2.2.7 with cam patches applied, so it
>  shouldn't be a parity/terminator misconfiguration.

This really looks like a cabling or termination problem.  The Adaptec
driver in -current isn't significantly different than the CAM driver you
used with 2.2.7.  So it's most likely some change in your hardware that has
caused the problem.

Ken
-- 
Kenneth Merry
ken@plutotech.com

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