Subject: Re: Getting "TLB IPI rendezvous failed..."
To: Manuel Bouyer <>
From: Frederick Bruckman <>
List: tech-kern
Date: 12/23/2004 15:22:08
On Thu, 23 Dec 2004, Manuel Bouyer wrote:

> On Thu, Dec 23, 2004 at 12:56:26AM -0600, Frederick Bruckman wrote:
>> Another thing I should mention, when I had kernel without options
>> DEBUG, DIAGNOSTIC, or DDB_ONPANIC=1, it would just seem to freeze, but
>> once, on an unattended freeze, it seemed to resolve all by itself after
>> a few hours (in a reboot).
> I've never seen a freeze, only these IPI panics involving mi_swicth()

There's no mystery there; the title check is "#ifdef DIAGNOSTIC". 
Without that, it looks like it would just spin forever. I honestly 
don't know what happened: it was not responding to ping, but by the 
time I got there, the computer had rebooted.