HEAD freezes

Matthew Dillon dillon at apollo.backplane.com
Mon Jun 5 12:08:43 PDT 2006

    Ok, I'm close to tracking this one down.  It's a critical section
    mismatch somewhere.  A critical section gets entered and never gets
    released, the user process then runs in a critical section which as
    you can imagine can lead to, oh, things like interrupts not working
    any more, and infinite loops locking up the box as well.

    I am adding INVARIANTS code to panic if the critical section count
    becomes mismatched and hopefully I'll track down the current mismatch


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