Just got another one - opening a PR...
cpu0: found cpu1 heart stopped beating after 16 seconds
panic: cpu1[27 softclk/1]: heart stopped beating
cpu1: Begin traceback...
vpanic() at netbsd:vpanic+0x161
panic() at netbsd:panic+0x3c
defibrillator() at netbsd:defibrillator+0x6b
ipi_msg_cpu_handler() at netbsd:ipi_msg_cpu_handler+0x50
ipi_cpu_handler() at netbsd:ipi_cpu_handler+0x73
x86_ipi_handler() at netbsd:x86_ipi_handler+0x6b
Xresume_lapic_ipi() at netbsd:Xresume_lapic_ipi+0x18
--- interrupt ---
getnanotime() at netbsd:getnanotime+0x53
tshzto() at netbsd:tshzto+0x1b
itimer_callout() at netbsd:itimer_callout+0xb1
callout_softclock() at netbsd:callout_softclock+0xad
softint_dispatch() at netbsd:softint_dispatch+0x8f
DDB lost frame for netbsd:Xsoftintr+0x4c, trying 0xffff9704a471aff0
Xsoftintr() at netbsd:Xsoftintr+0x4c
--- interrupt ---
?() at ffff9704a471b000
ostype() at ffffffff80bdabc4
cpu1: End traceback...
