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Date: Fri, 1 Feb 2008 11:40:32 -0800
From: "Kurt Buff" <kurt.buff@gmail.com>
To: "FreeBSD Questions" <freebsd-questions@freebsd.org>
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Subject: This has begun to annoy me...
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I've been getting this in my daily security email from one of my boxes
for quite a while, and have been ignoring it, because of workload.

However, it's finally annoyed me enough to pursue it.

What would the significance of the following section be?

zsquid.mycompany.com kernel log messages:
+++ /tmp/security.4blejPLW	Fri Feb  1 03:02:08 2008
+ad6: TIMEOUT - WRITE_DMA retrying (1 retry left) LBA=4662143
+ad6: TIMEOUT - WRITE_DMA retrying (1 retry left) LBA=113995359
+ad6: TIMEOUT - WRITE_DMA retrying (1 retry left) LBA=112970015
+ad6: TIMEOUT - WRITE_DMA retrying (1 retry left) LBA=4668319
+ad6: TIMEOUT - WRITE_DMA retrying (1 retry left) LBA=4849151
+ad6: TIMEOUT - WRITE_DMA retrying (1 retry left) LBA=115527359
+ad6: TIMEOUT - WRITE_DMA retrying (1 retry left) LBA=113714335
+ad6: TIMEOUT - WRITE_DMA retrying (1 retry left) LBA=113715199
+ad6: TIMEOUT - WRITE_DMA retrying (1 retry left) LBA=4570911
+ad6: TIMEOUT - WRITE_DMA retrying (1 retry left) LBA=42958719
+ad6: TIMEOUT - WRITE_DMA retrying (1 retry left) LBA=113343327
+ad6: TIMEOUT - WRITE_DMA retrying (1 retry left) LBA=117315327

It looks like disk write errors to me, but I'm not sure.

Thoughts?