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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: Monday, August 25, 2008 - 11:31 am

On Sun, Aug 24, 2008 at 8:13 PM, Dave Jones <davej@redhat.com> wrote:

On Sun, Aug 24, 2008 at 7:59 PM, H. Peter Anvin <hpa@kernel.org> wrote:

I sorted it -- thanks! It turned out to be pretty obscure; my tty
setting for the receiving end of the serial console was set to echo.
So when the machine booted, it was echoing lots of characters into the
Fedora 7 init, which would prompt for the starting of cpuspeed
initscript. Turning off echo for the tty was what triggered the
slowness; removing cpuspeed from the runlevel entirely solved the
problem.

Don't know why cpuspeed would select a governor which runs the CPU at
a constant 300 MHz, though.


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)