Hello! :-)

I'm encountering the  4.6-release read_big error with FreeBSD
4.7-release:

Whenever i try to copy or read large files from my cdrom drives, i get a


acd1: READ_BIG command timeout - resetting
ata2: resetting devices .. done


This is sometimes preceded or followed by a:


acd1: read data overrun 2048/0
acd1: read data overrun 4069/0


The hw.ata.atapi_dma=1 workaround does not help.

I'm using a Toshiba SD-M1612 and a Liteon LTR12101B.

The Toshiba works fine, but the Liteon drive causes problems

The Toshiba is secondary master on the standard IDE-controller while the
Liteon is primary master on an additional Promise IDE-controller.

I've already searched on the web and the archive, but found only
information and patches for 4.6 and the 4.7-release info says that this
problem has been solved in 4.7.

Does anybody know what might be causing this problem?

Bye
Marc


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