RE: Catching NForce2 lockup with NMI watchdog

[b@xxxxxxxxxxxxx]

>Everyone with this problem should turn on the nmi_watchdog, as
>someone may
>have the right circumstances to produce an oops where the
>others didn't.
>
>I say that you're not serious about getting this fixed unless
>you're going
>to do all of:

To quote Allen Martin:

>NVIDIA doesn't provide a windows driver to setup APIC interrupts.
>
>APIC functionality is exported through the ACPI methods and MP
>table in the system BIOS which the motherboard vendors supply.

>Likely the root of the problem has to do with the way the Linux
>kernel is using the ACPI methods to setup the interrupts which
>is different from win 9x/2k/XP.  I can help track this down,
>unfortunately so far I've been unable to reproduce the hangs
>on any of the boards I have.

and

>> Do you know whether the nforce2's with apic support the timer
>> (IRQ 0) in
>> IO-APIC mode?  To me, it seems like a bug:
>> "Dec  4 20:13:11 tesore kernel: ..MP-BIOS bug: 8254 timer not
>> connected to
>> IO-APIC"
>> (This message originates in arch/i386/kernel/io_apic.c)
>>
>
>Yes, Win 9x/2k/XP use the system timer on irq0 and have no problem.  I
>haven't looked at this yet.
>

Is it not possible that Linux could be made to handling this hardware
correctly?


>
> o turn on nmi_watchdog
> o try the patches posted[1]
> o contact nvidia or your motherboard manufacturer saying you
>need linux
>   support, and return the board if they don't. (phone, fax,
>email, or even
>   local office if there is one)
>
>I bought a VIA board to avoid the problems I expected from the
>nforce, and I
>needed a system (server) that would *work* now.
>
>[1] If you're worried about your file system, just boot the
>patched kernel in
>single mode, and that will mount all of your file systems
>read-only so there
>will be little chance of corruption.
>
>Mike

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/