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From: cfanning@jingoro.prevmed.sunysb.edu (Chris Fanning)
Newsgroups: comp.unix.bsd.freebsd.misc
Subject: Disk read errors? FAILURE?
Date: 18 Apr 1996 09:54:14 -0000
Organization: University at Stony Brook
Lines: 29
Message-ID: <4l53g6$eh1@jingoro.prevmed.sunysb.edu>
NNTP-Posting-Host: jingoro.prevmed.sunysb.edu
X-Newsreader: TIN [version 1.2 PL2]
This morning I was greeted by a bunch of disk read errors and kernel failure
messages on my screen. They look like:
Apr 18 06:14:06 jingoro /kernel: sd0(ncr0:0:0): MEDIUM ERROR info:3cd0d1
asc:16,0 Data synchronization mark error
Apr 18 06:17:32 jingoro /kernel: sd0(ncr0:0:0): MEDIUM ERROR info:3cd423
asc:11,0 Unrecovered read error
Apr 18 06:26:53 jingoro /kernel: sd0(ncr0:0:0): MEDIUM ERROR info:3cd775
asc:11,0 Unrecovered read error
...
Apr 18 06:29:49 jingoro /kernel: sd0(ncr0:0:0): MEDIUM ERROR info:3cd775
asc:11,0 Unrecovered read error
Apr 18 06:30:44 jingoro /kernel: sd0(ncr0:0:0): MEDIUM ERROR info:3cdac7
asc:11,0 Unrecovered read error
...
Apr 18 06:30:48 jingoro /kernel: sd0(ncr0:0:0): MEDIUM ERROR info:3cdac7
asc:11,0 Unrecovered read error
With several more of each deleted for brevity. The disk should be in perfect
operating order...? Is it? Or could something else be causing these errors?
I'm running FreeBSD 2.1 stable vintaged roughly a month ago. In the past
week I _did_ replace my memory. Could it possibly be the culprit?
In the meantime I haven't rebooted my machine so I can see if this happens
more often...
Chris