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XEN3_DOM0 crashes hard - pckbc_attach code
This mail is the continuation of a previous thread on port-xen:
I am bringing it to current, in order to get some advices on how to
handle this case.
Latest modification to pckbc, for XEN3_DOM0 kernel:
leads to some kind of interrupt handling exhaustion, and/or causes a
triple fault (?), which results in a violent shutdown of the computer.
Using ddb to step through autoconf confirms that the issue appear just
after calling bus_space_read() in pckbc_poll_data1(): it loops in ddb in
ilevel 8, and eventually, machine shuts down after a few seconds and
lots of outputs to console.
Any advice on how I could handle this issue? Setting higher value for
<s> (and lowering delay() accordingly) for the loop does fix it;
however, it looks like an ugly hack to me. Note that it only happens
with XEN3_DOM0, not GENERIC. Adding option PCKBCDEBUG does not help me much.
Comments/advices/hints... are appreciated.
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