From: Heikki Lindholm <holindho@domain.hid>
To: "Martijn Hazenberg (GOVA)" <martijn@domain.hid>
Cc: xenomai@xenomai.org
Subject: Re: [Xenomai-help] insmod: error inserting './xeno_posix.ko': -1 Unknown symbol in module
Date: Thu, 08 Dec 2005 12:50:30 +0200 [thread overview]
Message-ID: <43980FF6.1070104@domain.hid> (raw)
In-Reply-To: <000001c5fbe4$1f2d87c0$0200000a@domain.hid>
Martijn Hazenberg (GOVA) kirjoitti:
> Hi Heikki,
>
> When i first do the insmod of xeno_hal.ko
> Dmesg comes with :
>
> Xenomai : local APIC absent or disabled!
> Disable APIC support or pass "lapic" as bootparam
>
> What is this APIC ?
It's an interrupt controller tagged to the processor found on most
modern Intel architecture CPUs. AFAIK some single processor systems
disable it, although it's present on the cpu. You might first try what
xenomai suggests: insert "lapic" to the boot parameters list for the
kernel (lilo.conf or grub/menu.lst). If that doesn't work or makes the
machine behave oddly, disable Local APIC in your kernel configuration
and recompile the kernel and xeno modules.
-- hl
next prev parent reply other threads:[~2005-12-08 10:50 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-12-08 10:02 [Xenomai-help] insmod: error inserting './xeno_posix.ko': -1 Unknown symbol in module Martijn Hazenberg (GOVA)
2005-12-08 10:31 ` Heikki Lindholm
2005-12-08 10:42 ` Martijn Hazenberg (GOVA)
2005-12-08 10:50 ` Heikki Lindholm [this message]
2005-12-08 10:40 ` Gilles Chanteperdrix
2005-12-08 11:36 ` Ulrich Schwab
-- strict thread matches above, loose matches on Subject: below --
2005-12-08 9:04 linux
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