Deadlocks with recent SMP current
le at FreeBSD.org
Sat Aug 14 07:23:59 PDT 2004
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.
Lukas Ertl http://homepage.univie.ac.at/l.ertl/
le at FreeBSD.org http://people.freebsd.org/~le/
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