Re: kern/58871: Stuck processes

[Taylor R Campbell <riastradh%NetBSD.org@localhost>]

Can you start crash(8) and get output from `ps', `ps/w', and `show all
tstiles'?

Can you start crash(8) and stack traces from the processes not in RUN
state, like the tstile one with `bt 0t18154'?

If you can't start crash(8), can you enter ddb instead by sending
break over serial, or by (perhaps on the next boot) setting sysctl -w
hw.cnmagic=+++++ and then typing `+++++' on the console?

Can you ktrace the processes in RUN state to see what syscalls they're
running?

Can you run dtrace to sample what's happening?

dtrace -n 'profile:::profile-97 { @[stack()] = count() }'