Re: lockups

From: John Baldwin (jhb_at_FreeBSD.org)
Date: 05/25/04

  • Next message: Lukas Ertl: "Re: ACPI-CA 20040514 import" 
    To: freebsd-current@FreeBSD.org
Date: Tue, 25 May 2004 08:31:20 -0400

    On Tuesday 25 May 2004 12:40 am, Jason King wrote:
    > John Baldwin wrote:
    > >On Sunday 23 May 2004 12:30 am, Jason King wrote:
    > >>John Baldwin wrote:
    > >>>On Friday 14 May 2004 08:54 pm, Jason King wrote:
    > >>>>ok i'm a dumbass... in my haste this morning, i commented out the wrong
    > >>>>line in my config file, so when i tried disabling mixed mode, apic
    > >>>>support wasn't even compiled in the kernel. So to make extra sure, I
    > >>>>went back and explicitly tried it with the 5.2.1-RELEASE cd (disabling
    > >>>>apic worked, disabling mixed mode did not), so its really something
    > >>>>related to apic support. So next question, what can I do to track down
    > >>>>the problem? Any suggestions for resources to understand how the apic
    > >>>>stuff works? Might there be a way to grab the kernel messages even
    > >>>>after a reboot since the lockups don't even my to drop to the debugger?
    > >>>>Doing a boot -v generated a bunch of text that I couldn't read as it
    > >>>>scrolled by too fast, and I'm wondering if it might possibly help shed
    > >>>>some light as to what's going on...
    > >>>
    > >>>Note that you can't disable mixed mode via a tunable on 5.2.1, so you
    > >>>might want to retest disabling mixed mode. However, the first steps are
    > >>>to work on the non-ACPI case as that is easiest. I'll need 'mptable'
    > >>>output and dmesg output from a verbose boot with APIC enabled and ACPI
    > >>>disabled if you can get that. Thanks.
    > >>
    > >>Unfortunately, booting with ACPI disabled and apic enabled still caused
    > >>the system to hang. So anytime apic is enabled, the system locks up.
    > >>(i've tried just the kernel with no modules loaded as well as with the
    > >>normal modules I use loaded, locks up, but in a different place). I was
    > >>able to pull off the output from a boot -v using a serial console. I've
    > >>attached that. Hopefully that helps...
    > >
    > >Can you provide mptable output?
    >
    > Here is the mptable output.

    Hmm, your box has lots of issues. :-/ The $PIR table doesn't include entries
    for several devices on PCI bus 0, and the mptable doesn't include entries for
    almost all of your PCI devices. I would first look for a BIOS upgrade. 

    -- 
John Baldwin <jhb@FreeBSD.org>  <><  http://www.FreeBSD.org/~jhb/
"Power Users Use the Power to Serve"  =  http://www.FreeBSD.org
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