SMP kernel hanging at when testing 8254 interrupt delivery

David P. Reese Jr. daver at
Tue Jul 29 21:19:51 PDT 2003

On Tue, Jul 29, 2003 at 08:58:49PM -0700, Matthew Dillon wrote:
> :>     Please try commenting out the #define CHECK_POINTS line in
> :>     i386/i386/mp_machdep.c on line 189.  Maybe that is causing the CMOS
> :>     issues.
> :
> :With CHECK_POINTS turned off the kernel hangs at same place and CMOS still
> :gets hosed.
>     Shoot.  I am currently at a loss as to the cause.  What kind of machine
>     is this occuring on?

Its a SuperMicro P6DBE with dual P2 400's.

> :I'm out of town for two days.  When I get back I'll be able to fool with
> :this a bit more and try to track down the code that borks the CMOS.  
>     All right.  Whatever help you can give, small or large, is appreciated.
>     I've been trying to get Jeff to push into the issue as well since his
>     machine does the same thing.

Jeff is probably a bit more familiar with the sys/i386 codebase, but I've
got no problem catching up when I get back.

> 					-Matt


   David P. Reese Jr.                                      daver at xxxxxxxxxxxx
   It can be argued that returning a NULL pointer when asked to allocate
   zero bytes is a silly response to a silly question.
                                         -- FreeBSD manual page for malloc(3)

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