Messages in this thread | | | Date | Tue, 17 Feb 2009 18:15:17 +0000 | From | Bob Wilkinson <> | Subject | Re: [PROBLEM] Multiple BUG: unable to handle kernel paging request |
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On Mon, Feb 16, 2009 at 01:41:29PM -0800, Arjan van de Ven wrote: > On Mon, 16 Feb 2009 21:10:12 +0000 > Bob Wilkinson <bob@fourtheye.org> wrote: > > > Hello > > > > I have been having many problems with the stability of one of > > my machines. It does have a lot of attached peripherals, and > > regularly crashes. It does not always boot. I have attached as much > > information as I know to. > > > > There are multiple > > > > BUG: unable to handle kernel paging request > > you're using a rather old kernel; it might be better to report such an > issue to your distribution instead. > > > however, one thing to try is to put "mem=750M" on the kernel command > line; if your bios lies to you about how much memory you have that > would work around it.
Hi Arjan
Thanks for your suggestion. I added this to the end of the boot line in grub.conf. I needed to restart again today and saw this in the kern.log.
Feb 17 09:21:57 italy kernel: [ 0.114545] ACPI: Core revision 20080321 Feb 17 09:21:57 italy kernel: [ 0.123946] ACPI: setting ELCR to 0200 (from 0e00) Feb 17 09:21:57 italy kernel: [ 0.128008] weird, boot CPU (#0) not listedby the BIOS. Feb 17 09:21:57 italy kernel: [ 0.128008] SMP motherboard not detected. Feb 17 09:21:57 italy kernel: [ 0.128008] Local APIC not detected. Using dummy APIC emulation. Feb 17 09:21:57 italy kernel: [ 0.128008] SMP disabled Feb 17 09:21:57 italy kernel: [ 0.128008] Brought up 1 CPUs Feb 17 09:21:57 italy kernel: [ 0.128070] Total of 1 processors activated (1863.87 BogoMIPS).
I do find it weird that the BIOS does not list the one - and only - CPU.
I will build a newer kernel from source and see how I get on with that. I do suspect that I have some combination of intermittently faulty hardware. I quite often have a locked up machine - sometimes with three keyboard lights flashing, sometimes responding to CTRL-ALT-SYSRQ commands - sometimes not...
> Arjan van de Ven Intel Open Source Technology Centre > For development, discussion and tips for power savings, > visit http://www.lesswatts.org
Bob
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