Date: Tue, 21 Sep 2004 01:08:39 -0400 From: "David D.W. Downey" <david.downey@gmail.com> To: Johann Hugo <jhugo@icomtek.csir.co.za> Cc: Current <freebsd-current@freebsd.org> Subject: Re: SMP problems with -CURRENT? (and BETA5) Message-ID: <6917b781040920220860f0802d@mail.gmail.com> In-Reply-To: <200409210538.45741.jhugo@icomtek.csir.co.za> References: <414EB6CE.3000501@voicenet.com> <6917b781040920154639482d4e@mail.gmail.com> <414F751C.8080106@voicenet.com> <200409210538.45741.jhugo@icomtek.csir.co.za>
next in thread | previous in thread | raw e-mail | index | archive | help
On Tue, 21 Sep 2004 06:11:33 +0200, Johann Hugo <jhugo@icomtek.csir.co.za> wrote: > On Tuesday 21 September 2004 02:26, Adam K Kirchhoff wrote: > > What makes you think it's the cpu throttling that's causing the lockups > > for me? It does say "acpi_cpu: throttling enabled, 8 steps (100% to > > 12.5%)" but it continues on the same line with "currently 100%" Maybe > > I'm reading it wrong but that would indicate to me that it's still > > running at 100%.... > > > > In fact, I just checked and BETA4, which works fine, also displays the > > same line about cpu throttling. > > > > Any other ideas? I'd really like to make sure that this problem doesn't > > continue beyond BETA5 :-) Anything I can do to make sure this gets > > resolved (before I go and send a problem report)? > > > > Adam > > I had a similar problem. If you do a verbose boot you can see that it > actually continues past "acpi_cpu: throttling enabled ...." and it stops > with "ata0: resetting done" . Looks like some problem with the apic. > > I've made a new kernel without "device apic and options SMP " and now it boots > fine. > > Johann > > > > > _______________________________________________ > freebsd-current@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-current > To unsubscribe, send any mail to "freebsd-current-unsubscribe@freebsd.org" > That's disabling SMP and HTT support completely. Which means it's now operating as a uniprocessor (sp?). In order for HTT to work it has to have SMP + apic. One of the other things (from tests I've done here) is that I would look into playing with the MPSAFE enable code. (grep MP -r /usr/src/sys/i386/ | less) As for the throttling issue, I've never seen it throttle down like that and then back up on an init under 5.3-BETA2 or BETA3. I did start seeing problems with it under BETA4 and then BETA5. It doesn't do it under 4.10/4-STABLE either. Now with the ata0 comment, that's it resetting the actual controller (not the drives) Now that COULD indicate a problem with anything DMA registration (not sure if that's the right word for it) to ACPI. Yes I know this all raises more questions than it answers, however I'm hoping some of the devels on the list will step forward and either tell *me* I'm on crack and express the why of that, or explain in better details than I can. (I'm not a developer, I manage systems, nothing more.) -- David D.W. Downey
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?6917b781040920220860f0802d>