On Wed, 28 May 2003 13:42:13 -0400, Zwane Mwaikambo wrote:
>
> I submitted a patch for nolapic before...
Did you get any response as to whether it was going to be accepted into
the kernel or not?
The unfortunate thing is that even this sort of fix will not help my
situation. The reason being (which I only discovered by accident when I
set "dont_enable_local_apic = 1" rather than "dont_use_local_apic_timer"
and it didn't correct the booting problem) is that it seems that even if
the local apic is set disabled by setting dont_enable_local_apic = 1 in
arch/i386/kernel/apic.c, setup_APIC_clocks() is still called.
So the jist is that using the local apic timer feature is not dependent on
using the local apic, as per the dont_enable_local_apic and
dont_use_local_apic_timer flags in arch/i386/kernel/apic.c. Maybe this is
wrong, I dunno unfortunately.
I don't know anything about this APIC stuff so I don't know if that is
correct or not, but it is what happens.
Thanx for the input though, much appreciated,
b.
On Fri, 30 May 2003, Brian J. Murrell wrote:
> On Wed, 28 May 2003 13:42:13 -0400, Zwane Mwaikambo wrote:
> >
> > I submitted a patch for nolapic before...
>
> Did you get any response as to whether it was going to be accepted into
> the kernel or not?
Considering the dalay, i'll resend and give it another go, but generally
it means it's not going anywhere.
> The unfortunate thing is that even this sort of fix will not help my
> situation. The reason being (which I only discovered by accident when I
> set "dont_enable_local_apic = 1" rather than "dont_use_local_apic_timer"
> and it didn't correct the booting problem) is that it seems that even if
> the local apic is set disabled by setting dont_enable_local_apic = 1 in
> arch/i386/kernel/apic.c, setup_APIC_clocks() is still called.
How did you determine that? printks? Was this with my patch applied? I
originally did this patch for the exact same problem (buggy local APIC
implimentation).
(much snipped)
Linux version 2.5.70-mm1 ([email protected]) (gcc version
Kernel command line: nolapic nmi_watchdog=2 ro root=/dev/hda1 profile=2
debug console=tty0 cons0
kernel profiling enabled
Initializing CPU#0
CPU0: Intel Celeron (Mendocino) stepping 05
per-CPU timeslice cutoff: 365.65 usecs.
task migration cache decay timeout: 1 msecs.
SMP motherboard not detected.
Local APIC not detected. Using dummy APIC emulation.
Starting migration thread for cpu 0
> So the jist is that using the local apic timer feature is not dependent on
> using the local apic, as per the dont_enable_local_apic and
> dont_use_local_apic_timer flags in arch/i386/kernel/apic.c. Maybe this is
> wrong, I dunno unfortunately.
>
> I don't know anything about this APIC stuff so I don't know if that is
> correct or not, but it is what happens.
>
> Thanx for the input though, much appreciated,
You're welcome,
Zwane
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