CVSROOT: /cvs
Module name: src
Changes by: m...@cvs.openbsd.org 2010/12/20 13:07:49
Modified files:
sys/arch/m88k/m88k: trap.c
Log message:
mvme88k kernels running on 88110 systems have been prone to panicing for
``invalid opcode'' in kernel mode after being idle for a few hours, since
many months already. This panic does not make sense.
Recently, I've been able to gather enough samples and, looking at the
instructions surrounding the panic location, I have narrowed a pattern,
and I'll conveniently blame these panics upon a (to the best of my
knowledge) new genuine 88110 bug.
The exception handler will now recognize this situation and apply a large
hammer of workaround - probably not the best workaround that could be devised,
but it's short, easy to implement, and works 100% of the time so far. Besides,
since the machine is idle, who cares as long as it keeps running?
(the curious reader will find more information in the trap.c comments)
