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Date:      Sat, 24 May 1997 13:01:06 +0100 (BST)
From:      Andrew Wilson <andrew@aaaaaaaa.demon.co.uk>
To:        stable@freebsd.org
Cc:        Andrew Wilson <andrew@aaaaaaaa.demon.co.uk>
Subject:   NCR controller problems since latest 2.2 upgrade?
Message-ID:  <199705241201.NAA00229@aaaaaaaa.demon.co.uk>

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Hi,

	I used cvsup to grab the latest 2.2-STABLE on Friday 
night, ran 'make world' and almost immediately began seeing problems
reading my SCSI disk.

The several errors on bootup report as:

sd0(ncr0:0:0): MEDIUM ERROR info:62686 asc:11,0 Unrecovered read error, retries 3

While making a DAT backup of the disk 'cd /;tar cvfb /dev/rst0 20 .' The latest kernel reported: 

assertion "cp" failed: file = "../../pci/ncr.c" line 5542
sd0(ncr0:0:0) COMMAND FAILED (4 28) @f05ca200

And the x server died.

A subsequent reboot reported no errors.  The error seems to appear
erratically.

QUESTIONS:

1.	is this problem a result of bad software in the kernel?
2.	does this mean the NCR controller is toast?
3.	does this mean the disk is trashed?
4.	any recommendations?

Other info:

1> uname -a
FreeBSD aaaaaaaa.demon.co.uk 2.2-STABLE FreeBSD 2.2-STABLE #0: Sat May 24 11:38:42 BST 1997     andrew@aaaaaaaa.demon.co.uk:/b/andrew/CVSUP-2.2/src/sys/compile/AAAAAAAA  i386
2> 

Output from dmesg:

--- cut here ---
1> dmesg
Copyright (c) 1992-1997 FreeBSD Inc.
Copyright (c) 1982, 1986, 1989, 1991, 1993
        The Regents of the University of California.  All rights reserved.

FreeBSD 2.2-STABLE #0: Sat May 24 11:38:42 BST 1997
    andrew@aaaaaaaa.demon.co.uk:/b/andrew/CVSUP-2.2/src/sys/compile/AAAAAAAA
CPU: Pentium (99.97-MHz 586-class CPU)
  Origin = "GenuineIntel"  Id = 0x525  Stepping=5
  Features=0x1bf<FPU,VME,DE,PSE,TSC,MSR,MCE,CX8>
real memory  = 50331648 (49152K bytes)
avail memory = 46800896 (45704K bytes)
Probing for devices on PCI bus 0:
chip0 <Intel 82437FX PCI cache memory controller> rev 1 on pci0:0
chip1 <Intel 82371FB PCI-ISA bridge> rev 2 on pci0:7:0
chip2 <Intel 82371FB IDE interface> rev 2 on pci0:7:1
ncr0 <ncr 53c810 scsi> rev 2 int a irq 10 on pci0:11
ncr0 waiting for scsi devices to settle
(ncr0:0:0): "Quantum XP32150 576D" type 0 fixed SCSI 2
sd0(ncr0:0:0): Direct-Access 
sd0(ncr0:0:0): 10.0 MB/s (100 ns, offset 8)
2050MB (4199760 512 byte sectors)
vga0 <VGA-compatible display device> rev 142 int a irq 11 on pci0:12
Probing for devices on the ISA bus:
sc0 at 0x60-0x6f irq 1 on motherboard
sc0: VGA color <16 virtual consoles, flags=0x0>
sio0 at 0x3f8-0x3ff irq 4 on isa
sio0: type 16550A
sio1 at 0x2f8-0x2ff irq 3 on isa
sio1: type 16550A
lpt0 at 0x278-0x27f irq 7 on isa
lpt0: Interrupt-driven port
lp0: TCP/IP capable interface
fdc0 at 0x3f0-0x3f7 irq 6 drq 2 on isa
fdc0: NEC 72065B
fd0: 1.44MB 3.5in
npx0 on motherboard
npx0: INT 16 interface
changing root device to sd0a
WARNING: / was not properly dismounted.
2> 
--- cut here ---

Cheers,
Ay.

-- 
Andrew.Wilson@cm.cf.ac.uk http://www.cm.cf.ac.uk/User/Andrew.Wilson/



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