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FreeBSD: 4.6 ATA Issues
A lengthy thread on the stable FreeBSD mailing list discusses problems with the ATA code in the recently released FreeBSD 4.6 [earlier story]. One of the main problems with the ATA code appears to prevent certain fast ATA CD-ROM drives from working properly (AOpen 48x, 52x, and 56x drives were specifically reported with the problem). When hitting this bug, an error such as the following is displayed on the console and the kernel sometimes panics:
acd0: READ_BIG command timeout - resetting ata1: resetting devices .. done
A workaround is available.
Original URL: http://kerneltrap.org/node.php?id=272
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