Re: [patch] Real-Time Preemption, -RT-2.6.10-rc1-mm3-V0.7.25-0

From: Gunther Persoons
Date: Thu Nov 11 2004 - 11:41:07 EST


Ingo Molnar wrote:

* Ingo Molnar <mingo@xxxxxxx> wrote:



just in case you are using UP-IOAPIC, could you enable CONFIG_SMP
(even if you are running an UP box) and see whether the lockup goes
away? Which was the last -RT kernel that you tried that didnt lock up
in this fashion?



if with CONFIG_SMP it's more stable, could you try the following: turn
off CONFIG_SMP again and edit arch/i386/kernel/io_apic.c and remove this
string:

&& defined(CONFIG_SMP)

(there should be only one occurence of this string.)

this will turn the previous IO-APIC logic (used in -V0.7.24) back on.

Ingo



It locked up after 20 minutes with CONFIG_SMP enabled.
-
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/