[Bug 237261] Boot stuck in endless ATAPI_IDENTIFY attempts

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=237261

--- Comment #4 from Andriy Gapon <avg at FreeBSD.org> ---
(In reply to Mikhail Teterin from comment #2)
I wonder how long you waited at most?
I suspect that after some, quite long, time the system would eventually
continue to boot. The ATAPI_IDENTIFY timeout is quite large and there is a
number of retries on a couple of levels.

The problem seems to be that for some reason the system seems to "detect" a
phantom ATAPI slave on the same channel as the CD-ROM device (devices=0x30000
-- this mask contains two devices on the channel).
Maybe the older code had a way to check that it is a phantom device or maybe it
just failed the phantom much faster.

Could you please attach a verbose dmesg from FreeBSD 8 ?

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