Messages in this thread | | | Date | Sat, 6 Jan 2007 14:04:59 -0800 | From | Randy Dunlap <> | Subject | Re: x86 instability with 2.6.1{8,9} |
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On Tue, 2 Jan 2007 19:34:59 +0000 Ken Moffat wrote:
> On Tue, Jan 02, 2007 at 01:42:32PM -0500, Len Brown wrote: > > > > You might remove and re-insert the DIMMS. > > Sometimes there are poor contacts if the DIMMS are not fully seated and clicked in. > > > > The real mystery is the 32 vs 64-bit thing. > > Are the devices configured the same way -- ie are they both in IOAPIC mode > > and /proc/interrupts looks the same for both modes? > > > > -Len > > Too late, I've started memtest-86+. If it seems ok after an > overnight run, I'll take a look at /proc/interrupts. How can I tell > it is in IOAPIC mode, please ? Google was not helpful for this, but > if it's an override, the only things on my command lines are root= > and video= settings.
(did anyone ever answer this?)
In IO-APIC mode, /proc/interrupts contains entries like these:
CPU0 CPU1 0: 121218123 0 IO-APIC-edge timer 1: 715259 0 IO-APIC-edge i8042 6: 5 0 IO-APIC-edge floppy 7: 0 0 IO-APIC-edge parport0 9: 0 0 IO-APIC-level acpi 12: 10011272 0 IO-APIC-edge i8042 14: 11561548 0 IO-APIC-edge ide0 66: 4525183 0 PCI-MSI libata 74: 1711 0 IO-APIC-level ehci_hcd:usb1, uhci_hcd:usb6 82: 4 0 IO-APIC-level ohci_hcd:usb2, ohci_hcd:usb3, ohci_hcd:usb4, ohci_hcd:usb5 98: 101326 0 PCI-MSI HDA Intel 106: 17747181 0 PCI-MSI eth0 169: 0 0 IO-APIC-level uhci_hcd:usb9 177: 3 0 IO-APIC-level ohci1394 185: 15 0 IO-APIC-level uhci_hcd:usb8, aic79xx 193: 427962 0 IO-APIC-level uhci_hcd:usb7, aic79xx
If not in IO-APIC mode, lots of those will say "XT-PIC" instead of IO-APIC.
> Certainly, it seems likely that the configs could be fairly > different in their detail.
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