Re: Fatal trap 12 --- can lack of APIC on SMP cause crashes?

2008-06-28 Thread Rudy

Rudy wrote:


My kernel panics!


Here are a two things I did which seem to stop the Fatal trap 12's with FreeBSD-7.0-RELEASE (saw it 
on three different boxes):


 cvsup to FreeBSD-7.0-STABLE
 (Don't forget to change  SCHED_4BSD -- SCHED_ULE  as that is now the default 
on STABLE)
 disabled CARP

I don't know if it was the SCHED_4BSD, the CARP, or the combination, but my 
boxes seem stable now.

Just wanted to answer my own post in case anyone is searching for Fatal trap 12 cures for 
FreeBSD-7.0-RELEASE.  :)


Rudy
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Re: Fatal trap 12 --- can lack of APIC on SMP cause crashes?

2008-06-28 Thread Kris Kennaway

Rudy wrote:

Rudy wrote:


My kernel panics!


Here are a two things I did which seem to stop the Fatal trap 12's with 
FreeBSD-7.0-RELEASE (saw it on three different boxes):


 cvsup to FreeBSD-7.0-STABLE
 (Don't forget to change  SCHED_4BSD -- SCHED_ULE  as that is now the 
default on STABLE)

 disabled CARP

I don't know if it was the SCHED_4BSD, the CARP, or the combination, but 
my boxes seem stable now.


Just wanted to answer my own post in case anyone is searching for Fatal 
trap 12 cures for FreeBSD-7.0-RELEASE.  :)


FYI, Fatal trap 12 is a very generic type of error (it can mean null 
pointer dereference, among other things) and it can have many causes 
(e.g. anywhere in the entire kernel where there is a pointer that can 
become NULL through a programming or other error).  You need to compare 
the stack traces to work out what the cause was.


Kris
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