Hi,

(kgdb) p *tp->t_session
Cannot access memory at address 0x0

So here the problem is. Why is tp->t_session empty ? Maybe it has been already
free() earlier and we have some race here ?

"Race" was exactly my conclusion last time I looked into this.
http://docs.FreeBSD.org/cgi/mid.cgi?20041204110815.E80797

Something, somewhere is playing with t_session without locking...


Any idea how we can track this down ? It's a very bad thing to have in 61.
And yes, the serial output is going over a serial console.

Martin
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