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Date:      Tue, 30 Mar 1999 12:40:03 -0800 (PST)
From:      "Justin T. Gibbs" <gibbs@plutotech.com>
To:        freebsd-bugs@FreeBSD.org
Subject:   Re: kern/10876: aic7895 code failed 
Message-ID:  <199903302040.MAA40053@freefall.freebsd.org>

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The following reply was made to PR kern/10876; it has been noted by GNATS.

From: "Justin T. Gibbs" <gibbs@plutotech.com>
To: doka@doka.kiev.sovam.com
Cc: FreeBSD-gnats-submit@FreeBSD.ORG
Subject: Re: kern/10876: aic7895 code failed 
Date: Tue, 30 Mar 1999 13:23:29 -0700

 >>Description:
 >
 >	While booting kernel detects SCSI controller successfully, but
 >	later panics with such messages on console:
 >
 >	(probe0:ahc0:0:1:7): parity error during Data-In phase
 >	SEQADDR == 0x111 (may be 0x110 and 0x112)
 >	SCSIRATE == 0x88
 
 There is something wrong with your cabling or termination that is
 causing parity errors to be reported.  This is not a driver bug.
 
 >	Fatal trap 12
 >	fault virtual address = 0x8
 >	fault code = supervisor read, page not present
 >	instruction pointer = 0x8:0xf015fae1
 
 Taking the kernel from the 19990328-STABLE snapshot off of kern.flp:
 nm kernel | sort
 ...
 f015f654 t gcc2_compiled.
 f015f794 T dscheck
 f015fa80 T dsclose
 f015fad4 T dsgone
 f015fb3c T dsioctl
 f01600cc t dsiodone
 
 This is in the middle of dsgone().  Perhaps Bruce (bde@FreeBSD.org)
 can help you out here.  My guess is that if you fix your parity
 problem, the diskslice code will be less confused.
 
 --
 Justin
 
 
 


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