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Re: latest -git: WARNING: at arch/x86/kernel/ipi.c:123 send_IPI_mask_bitmask+0xc3/0xe0()

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From: Vegard Nossum
Subject: Re: latest -git: WARNING: at arch/x86/kernel/ipi.c:123 send_IPI_mask_bitmask+0xc3/0xe0()
Date: Sunday, August 24, 2008 - 10:45 am

On Sun, Aug 24, 2008 at 7:22 PM, Vegard Nossum <vegard.nossum@gmail.com> wrote:

Removing acpi=off helps with the CPU detection problem. The kernel is
still really slow, though. From /proc/cpuinfo:

processor       : 1
vendor_id       : GenuineIntel
cpu family      : 15
model           : 6
model name      : Intel(R) Pentium(R) 4 CPU 3.00GHz
stepping        : 5
cpu MHz         : 375.000
cache size      : 2048 KB

Why is MHz on 375!? I tried cpufreq-selector, but nothing changed. Maybe

calling  acpi_cpufreq_init+0x0/0x90
initcall acpi_cpufreq_init+0x0/0x90 returned -19 after 0 msecs

There's also this:

SMP: Allowing 2 CPUs, 0 hotplug CPUs

(but CPU hotplug still work, is the line above about something
different, like physical hotplug?)

Apart from that, with your patch applied, hotplug seems to work OK (no
warnings).

Okay, now I used cpufreq-selector to change to "ondemand" governor,
and MHz goes back to 3000. Weird. Why would "performance" governor put
my machine to a constant 375?

Thanks,


Vegard

-- 
"The animistic metaphor of the bug that maliciously sneaked in while
the programmer was not looking is intellectually dishonest as it
disguises that the error is the programmer's own creation."
	-- E. W. Dijkstra, EWD1036
--
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Messages in current thread:
latest -git: WARNING: at arch/x86/kernel/ipi.c:123 send_IP ..., Vegard Nossum, (Tue Aug 19, 12:51 pm)
Re: latest -git: WARNING: at arch/x86/kernel/ipi.c:123 sen ..., Andi Kleen, (Tue Aug 19, 6:39 pm)
Re: latest -git: WARNING: at arch/x86/kernel/ipi.c:123 sen ..., Vegard Nossum, (Tue Aug 19, 11:26 pm)
Re: latest -git: WARNING: at arch/x86/kernel/ipi.c:123 sen ..., Dave Jones, (Thu Aug 21, 5:36 pm)
Re: latest -git: WARNING: at arch/x86/kernel/ipi.c:123 sen ..., H. Peter Anvin, (Thu Aug 21, 7:13 pm)
Re: latest -git: WARNING: at arch/x86/kernel/ipi.c:123 sen ..., Andi Kleen, (Thu Aug 21, 7:28 pm)
Re: latest -git: WARNING: at arch/x86/kernel/ipi.c:123 sen ..., H. Peter Anvin, (Thu Aug 21, 11:24 pm)
Re: latest -git: WARNING: at arch/x86/kernel/ipi.c:123 sen ..., Andi Kleen, (Fri Aug 22, 2:35 am)
Re: latest -git: WARNING: at arch/x86/kernel/ipi.c:123 sen ..., adobriyan, (Fri Aug 22, 4:13 am)
Re: latest -git: WARNING: at arch/x86/kernel/ipi.c:123 sen ..., H. Peter Anvin, (Fri Aug 22, 9:41 am)
Re: latest -git: WARNING: at arch/x86/kernel/ipi.c:123 sen ..., Jeremy Fitzhardinge, (Fri Aug 22, 11:42 pm)
Re: latest -git: WARNING: at arch/x86/kernel/ipi.c:123 sen ..., H. Peter Anvin, (Fri Aug 22, 11:44 pm)
Re: latest -git: WARNING: at arch/x86/kernel/ipi.c:123 sen ..., Vegard Nossum, (Sun Aug 24, 2:20 am)
Re: latest -git: WARNING: at arch/x86/kernel/ipi.c:123 sen ..., H. Peter Anvin, (Sun Aug 24, 9:43 am)
Re: latest -git: WARNING: at arch/x86/kernel/ipi.c:123 sen ..., H. Peter Anvin, (Sun Aug 24, 10:17 am)
Re: latest -git: WARNING: at arch/x86/kernel/ipi.c:123 sen ..., Vegard Nossum, (Sun Aug 24, 10:22 am)
Re: latest -git: WARNING: at arch/x86/kernel/ipi.c:123 sen ..., Vegard Nossum, (Sun Aug 24, 10:45 am)
Re: latest -git: WARNING: at arch/x86/kernel/ipi.c:123 sen ..., H. Peter Anvin, (Sun Aug 24, 10:59 am)
Re: latest -git: WARNING: at arch/x86/kernel/ipi.c:123 sen ..., Dave Jones, (Sun Aug 24, 11:13 am)
Re: latest -git: WARNING: at arch/x86/kernel/ipi.c:123 sen ..., Vegard Nossum, (Mon Aug 25, 11:31 am)
Re: latest -git: WARNING: at arch/x86/kernel/ipi.c:123 sen ..., Andi Kleen, (Mon Aug 25, 11:36 am)
Re: latest -git: WARNING: at arch/x86/kernel/ipi.c:123 sen ..., Dave Jones, (Mon Aug 25, 11:38 am)
Re: latest -git: WARNING: at arch/x86/kernel/ipi.c:123 sen ..., Dave Jones, (Mon Aug 25, 11:54 am)
Re: latest -git: WARNING: at arch/x86/kernel/ipi.c:123 sen ..., H. Peter Anvin, (Mon Aug 25, 12:08 pm)
Re: latest -git: WARNING: at arch/x86/kernel/ipi.c:123 sen ..., Dave Jones, (Mon Aug 25, 12:13 pm)
Re: latest -git: WARNING: at arch/x86/kernel/ipi.c:123 sen ..., Andi Kleen, (Mon Aug 25, 12:39 pm)
Re: latest -git: WARNING: at arch/x86/kernel/ipi.c:123 sen ..., Dave Jones, (Mon Aug 25, 12:50 pm)
Re: latest -git: WARNING: at arch/x86/kernel/ipi.c:123 sen ..., Andi Kleen, (Mon Aug 25, 1:36 pm)
Re: latest -git: WARNING: at arch/x86/kernel/ipi.c:123 sen ..., Dave Jones, (Mon Aug 25, 1:47 pm)
Re: latest -git: WARNING: at arch/x86/kernel/ipi.c:123 sen ..., Arjan van de Ven, (Mon Aug 25, 2:24 pm)