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Date:      Sun, 28 Oct 2001 08:57:35 -0800
From:      Rakesh Prajapati <rprajapa@frys.com>
To:        questions@freebsd.org
Subject:   Error Messages on Console, FreeBSD 4.2 RELEASE
Message-ID:  <3BDC38FF.AD7B52BD@frys.com>
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I have installed FreeBSD 4.2 RELEASE on my DELL Dimension PC.

Everything works fine except occasionally I get this error message on my

Console.


Oct 28 01:01:19 rakesh /kernel: ad0: DMA problem fallback to PIO mode
Oct 28 01:01:19 rakesh /kernel: ad0: DMA problem fallback to PIO mode
Oct 28 01:01:45 rakesh /kernel: ad0: HARD READ ERROR blk# 56477947
status=59 error=40
Oct 28 01:01:45 rakesh /kernel: ad0: HARD READ ERROR blk# 56477947
status=59 error=40
Oct 28 01:01:52 rakesh /kernel: ad0: HARD READ ERROR blk# 56806265
status=59 error=40
Oct 28 01:01:52 rakesh /kernel: ad0: HARD READ ERROR blk# 56806265
status=59 error=40
Oct 28 02:01:10 rakesh /kernel: ad0: HARD READ ERROR blk# 59883601
status=59 error=40
Oct 28 02:01:10 rakesh /kernel: ad0: HARD READ ERROR blk# 59883601
status=59 error=40
Oct 28 02:01:38 rakesh /kernel: ad0: HARD READ ERROR blk# 56477947
status=59 error=40
Oct 28 02:01:38 rakesh /kernel: ad0: HARD READ ERROR blk# 56477947
status=59 error=40
Oct 28 02:01:45 rakesh /kernel: ad0: HARD READ ERROR blk# 56806265
status=59 error=40
Oct 28 02:01:45 rakesh /kernel: ad0: HARD READ ERROR blk# 56806265
status=59 error=40



I know that my hard disk is good , ie no bad sectors etc , as when  I my
format my drive in Windows , there are no drive errors.

Its a 40 GB IDE hard disk.

rakesh# df -k
Filesystem  1K-blocks     Used    Avail Capacity  Mounted on
/dev/ad0s1a    992239    33342   879518     4%    /
/dev/ad0s1e   9924475   581280  8549237     6%    /usr
/dev/ad0s1f   9924475    87793  9042724     1%    /usr/local
/dev/ad0s1g   9924475  1565123  7565394    17%    /var
procfs              4        4        0   100%    /proc
rakesh#


Any Ideas?


Thanks
Rakesh


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<html>
&nbsp;
<pre>I have installed FreeBSD 4.2 RELEASE on my DELL Dimension PC.</pre>
Everything works fine except occasionally I get this error message on my
<br>Console.
<br>&nbsp;
<p>Oct 28 01:01:19 rakesh /kernel: ad0: DMA problem fallback to PIO mode
<br>Oct 28 01:01:19 rakesh /kernel: ad0: DMA problem fallback to PIO mode
<br>Oct 28 01:01:45 rakesh /kernel: ad0: HARD READ ERROR blk# 56477947
status=59 error=40
<br>Oct 28 01:01:45 rakesh /kernel: ad0: HARD READ ERROR blk# 56477947
status=59 error=40
<br>Oct 28 01:01:52 rakesh /kernel: ad0: HARD READ ERROR blk# 56806265
status=59 error=40
<br>Oct 28 01:01:52 rakesh /kernel: ad0: HARD READ ERROR blk# 56806265
status=59 error=40
<br>Oct 28 02:01:10 rakesh /kernel: ad0: HARD READ ERROR blk# 59883601
status=59 error=40
<br>Oct 28 02:01:10 rakesh /kernel: ad0: HARD READ ERROR blk# 59883601
status=59 error=40
<br>Oct 28 02:01:38 rakesh /kernel: ad0: HARD READ ERROR blk# 56477947
status=59 error=40
<br>Oct 28 02:01:38 rakesh /kernel: ad0: HARD READ ERROR blk# 56477947
status=59 error=40
<br>Oct 28 02:01:45 rakesh /kernel: ad0: HARD READ ERROR blk# 56806265
status=59 error=40
<br>Oct 28 02:01:45 rakesh /kernel: ad0: HARD READ ERROR blk# 56806265
status=59 error=40
<br>&nbsp;
<br>&nbsp;
<p>I know that my hard disk is good , ie no bad sectors etc , as when&nbsp;
I my format my drive in Windows , there are no drive errors.
<p>Its a 40 GB IDE hard disk.
<p>rakesh# df -k
<br>Filesystem&nbsp; 1K-blocks&nbsp;&nbsp;&nbsp;&nbsp; Used&nbsp;&nbsp;&nbsp;
Avail Capacity&nbsp; Mounted on
<br>/dev/ad0s1a&nbsp;&nbsp;&nbsp; 992239&nbsp;&nbsp;&nbsp; 33342&nbsp;&nbsp;
879518&nbsp;&nbsp;&nbsp;&nbsp; 4%&nbsp;&nbsp;&nbsp; /
<br>/dev/ad0s1e&nbsp;&nbsp; 9924475&nbsp;&nbsp; 581280&nbsp; 8549237&nbsp;&nbsp;&nbsp;&nbsp;
6%&nbsp;&nbsp;&nbsp; /usr
<br>/dev/ad0s1f&nbsp;&nbsp; 9924475&nbsp;&nbsp;&nbsp; 87793&nbsp; 9042724&nbsp;&nbsp;&nbsp;&nbsp;
1%&nbsp;&nbsp;&nbsp; /usr/local
<br>/dev/ad0s1g&nbsp;&nbsp; 9924475&nbsp; 1565123&nbsp; 7565394&nbsp;&nbsp;&nbsp;
17%&nbsp;&nbsp;&nbsp; /var
<br>procfs&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
4&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 4&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
0&nbsp;&nbsp; 100%&nbsp;&nbsp;&nbsp; /proc
<br>rakesh#
<br>&nbsp;
<p>Any Ideas?
<br>&nbsp;
<p>Thanks
<br>Rakesh
<br>&nbsp;</html>

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