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From: mikk0022@maroon.tc.umn.edu
To: questions@freebsd.org
Subject: Problem using 'vn' device for swap
Date: Thu, 28 Aug 1997 23:47:25 -0500
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I am running FreeBSD 2.2.2.  I attempted to add some swap space a few minutes
ago, by creating a 64MB empty file and 'vnconfig-ing' it as a swap device.
Shortly after I did this, my system started thrashing wildly, and my syslog
is filled with messages like the following:

Aug 28 23:41:41 mercury /kernel: swap_pager_finish: I/O error, clean of page 67a000 failed
Aug 28 23:41:42 mercury /kernel: swap_pager: I/O error - async pageout failed; blkno 408, size 8192, error 0

What do these errors mean?  What could be causing these I/O errors?

Thanks,
-Chris