ACPI hangs the Kernel during boot.

[Andrew Kolchoogin]

Dear colleagues,

    during my last upgrade to FreeBSD-CURRENT from May, 5 2003 from
FreeBSD 5.0-RELEASE some strange hang has been observed.

    Hardware is the ServerWorks STL2 motherboard with Intel Pentium III
microprocessor. All other hardware is on-board: Intel 82559-based Ethernet
adapter and Adaptec AIC7899 dual-channel Ultra160 (LVD/SE) controller.

    FreeBSD 5.0-RELEASE boots O.K. FreeBSD-CURRENT hangs immediately after
probing of system console, as far as I can understand, with interrupts
disabled -- I can't invoke DDB.

    Moving away acpi.ko "cures" the situation -- although kernel whines
about unassigned ports/interrupts in PnP probing code.

    What should I do (besides remote GDB) to track the problem?
-- 
    Yours
        Andrew Kolchoogin.                              [AKOL-RIPE, AKOL-RIPN]

... Contrary to popular belief, UNIX is user-friendly. It just happens to be
    very selective about who it decides to make friends with.     A. Haiut.