This is a discussion on Re: SMP opteron system freezes, - FreeBSD ; On Mon, Oct 20, 2008 at 05:33:56PM +0200, Willem Jan Withagen wrote: > Willem Jan Withagen wrote: > >Steve Kargl wrote: > >>On Sat, Oct 18, 2008 at 12:20:49AM +0200, Willem Jan Withagen wrote: > >>>I'm sort of assuming that ...
On Mon, Oct 20, 2008 at 05:33:56PM +0200, Willem Jan Withagen wrote:
> Willem Jan Withagen wrote:
> >Steve Kargl wrote:
> >>On Sat, Oct 18, 2008 at 12:20:49AM +0200, Willem Jan Withagen wrote:
> >>>I'm sort of assuming that the bge0: timeouts and coalesced links are
> >>>due to the freezing.
> >>Does the following help?
> >Just a little...
> >It now takes a little longer for the system to freeze, but eventally it
> >The coalesced messages did not return.
> >Just out of curiosity is also plugged in an fxp-card.
> >And there it takes even longer for the system to freeze, but in the end
> >it does freeze.
> >The "funny" part is it once in a while is revivable by going into the
> >kernel-debugger and then just continue.
> >Sometimes a long wait (10 sec) will suffice, during which there is no
> >keyboard response what so ever.
> >But on other instances the system is dead in the water, and only a
> >hardware reset gets it back.
> >Something I'm still wondering if this only is with NFS traffic, or with
> >all other types of network traffic. But I haven't tested thids.
> Well I tested something different.
> This is a (older) dual opteron 244 system. So each chip has only one core.
> And I removed one of the processors...
> Guess what:
> It just runs without any problems as far as I could test.
> With 2 processors it is just enough to let init start all the nfs related
> stuff in /etc/rc.d and lock up the system.
> So I guess we need to look at totally different things.
> Given enough time, I'll check and see whether 7.x does run without trouble.
> If somebody thinks this thread should go to amd64, just say so.
> But I am running the i386 stuff.
> dmesg and stuff in http://www.tegenbosch28.nl:/FreeBSD/toy
> (although I see I have to fire up the system again to get a correct dmesg.)
I forgot to mention that I also set a few sysctl values in
/etc/sysctl.conf. You might try adding the following
# WHen MSI was added to the kernel, I needed the following for
# the Tyan motherboard that I have. Things may have improve,
# but I haven't bothered to test.
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