Deadlocks with recent SMP current

[Lukas Ertl]

On Fri, 13 Aug 2004, Robert Watson wrote:

> to be delivering in this hang (er, ouch).  You might want to try putting a
> kdb_enter() just after the T_NMI in both switch statements in trap() in
> i386/i386/trap.c.  This will cause the kernel to enter the debugger before
> digging into the more general NMI code, which generates log messages, etc,
> that may increase the chances of a problem.

Even with this change I only get a 'kernel trap 19 with interrupts 
disabled' when sending the NMI, but no DDB prompt.

cheers,
le

-- 
Lukas Ertl                         http://homepage.univie.ac.at/l.ertl/
le at FreeBSD.org                     http://people.freebsd.org/~le/