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Date:      Fri, 19 Sep 2003 01:02:58 +0200
From:      D.Rock@t-online.de (Daniel Rock)
To:        freebsd-current@freebsd.org
Subject:   Re: ad0: WARNING - WRITE_MUL write data underrun
Message-ID:  <3F6A39A2.5010108@t-online.de>
In-Reply-To: <+2q6VqcEkfa$EwhJ@lap.knigma.org>
References:  <+2q6VqcEkfa$EwhJ@lap.knigma.org>

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Mark Knight schrieb:

> Current from approximately 0500 BST on 16th September is giving me 
> errors like this from boot:
> 
> ad0: WARNING - WRITE_MUL write data underrun 8192>2048
> ad0: WARNING - WRITE_MUL write data underrun 8192>6144
> ad0: WARNING - WRITE_MUL write data underrun 8192>4096
> ad0: WARNING - WRITE_MUL write data underrun 8192>4096
> 

Same for me. From the date on the left you can see how often this happens.
I have seen these messages since switching to ATAng (on Sep 3rd) - in
PIO mode, since I have an Acer Aladdin based board.

This machine is mostly idle. Even during most of the messages below,
there wasn't much disk activity.

Total disk activity since last reboot (5 days ago):

% iostat -I
       tty             ad0              ad1              cd0             cpu
  tin tout  KB/t xfrs   MB   KB/t xfrs   MB   KB/t xfrs   MB  us ni sy in id
    0    2 11.91 300969 3501.68   5.86 44871 256.99   0.00   0  0.00   3 85  8 
  4  0



Sep  3 19:37:02 ad0: WARNING - WRITE_MUL write data underrun 8192>4096
Sep  6 06:21:14 ad0: WARNING - WRITE_MUL write data underrun 8192>6144
Sep  6 15:08:59 ata0: resetting devices ..
Sep  6 15:08:59 done
Sep  6 15:08:59 ad0: TIMEOUT - WRITE_MUL retrying (1 retry left)
Sep  8 21:15:04 ad0: WARNING - WRITE_MUL write data underrun 8192>4096
Sep  9 02:34:23 ad0: WARNING - WRITE_MUL write data underrun 8192>6144
Sep 12 14:44:03 ad0: WARNING - WRITE_MUL write data underrun 8192>4096
Sep 13 00:43:55 ad0: WARNING - WRITE_MUL write data underrun 8192>2048
Sep 13 01:15:02 ad0: WARNING - WRITE_MUL write data underrun 8192>4096
Sep 13 03:20:54 ata0: resetting devices ..
Sep 13 03:20:55 done
Sep 13 03:20:55 ad0: TIMEOUT - WRITE_MUL retrying (1 retry left)
Sep 13 15:22:07 ata0: resetting devices ..
Sep 13 15:22:07 done
Sep 13 15:22:08 ad0: TIMEOUT - WRITE_MUL retrying (1 retry left)
Sep 13 16:04:03 ad0: WARNING - WRITE_MUL write data underrun 8192>4096
Sep 13 17:24:09 ad0: WARNING - WRITE_MUL write data underrun 8192>4096
Sep 14 03:23:22 ata0: resetting devices ..
Sep 14 03:23:22 done
Sep 14 03:23:22 ad0: TIMEOUT - WRITE_MUL retrying (1 retry left)
Sep 14 10:00:36 ad0: WARNING - WRITE_MUL write data underrun 8192>4096
Sep 15 04:22:25 ad0: WARNING - WRITE_MUL write data underrun 8192>2048
Sep 17 10:55:17 ad0: WARNING - WRITE_MUL write data underrun 8192>4096
Sep 17 11:35:04 ad0: WARNING - WRITE_MUL write data underrun 8192>4096




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