Today's RELENG_5_4 and 'lock cmpxchgl'

[Marc Olzheim]

On Fri, Jul 01, 2005 at 12:41:39PM +0200, Marc Olzheim wrote:
> On Fri, Jul 01, 2005 at 12:14:58PM +0200, Marc Olzheim wrote:
> > Somehow, this sounds familiar, i.e.: the "lock cmpxchgl":
> > 
> > Fatal trap 12: page fault while in kernel mode
> ...
> > Stopped at      0xc05160c3 = knote+0x27:        lock cmpxchgl   %ecx,0x1c(%edx)
> 
> Somehow I think I solved this last time by activating 'INVARIANTS'...
> I'll try that now.

Let's paraphrase:

I think i solved this last time by activating 'INVARIANTS'...

Anyway, tried that and yes, it didn't crash in the last few hours, so I
guess it works. Without INVARIANTS, it crashed within seconds.

On the downside, my Gigabit performance dropped from 99 MB/sec to 80
MB/sec because of INVARIANTS.

Marc
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