lockups with src/tools/regression/gaithrstress
Brian Fundakowski Feldman
green at FreeBSD.org
Sun Jul 18 22:25:36 PDT 2004
Running with or without kern.smp.disabled, with a very up-to-date kernel,
I can easily lock up the system by running gaithrstress -t 50 a few times
at once. There is nothing special that has changed in the last few weeks,
though I have extensive changes to kqueue and VM which I consider entirely
stable at this point. Anything causing a problem like this seems like it's
due to changes within the last few weeks.
The only clue I have comes from a previous panic() (which promptly just
locked up going into "KDB: enter: panic"), "kse/thread mismatch" as
generated by choosethread(). The connect() system call was trying to
do an mi_switch() inside a mtx_lock() at the time.
--
Brian Fundakowski Feldman \'[ FreeBSD ]''''''''''\
<> green at FreeBSD.org \ The Power to Serve! \
Opinions expressed are my own. \,,,,,,,,,,,,,,,,,,,,,,\
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