Hi Stefan,
When I start a Virtual Machine, during the guest's boot, IPIs are sent
and received correctly between CPUs, but after a few seconds I get:
spin lock 0xffffffff8164c290 (smp rendezvous) held by
0xfffff8000296c000 (tid 100009) too long
panic: spin lock held too long
Is this on a lightly loaded machine ? I've not looked at your diff in
detail but it's possibly a code path where a spinlock wasn't unlocked,
leaving another CPU spinning.
later,
Peter.
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