From: Mikael Pettersson <mikpe@csd.uu.se>
To: Klaus Umbach <Klaus.Umbach@doppelhertz.homelinux.org>
Cc: linux-kernel@vger.kernel.org
Subject: Re: ide-scsi and SMP does not work together.
Date: Wed, 5 Nov 2003 15:42:38 +0100 [thread overview]
Message-ID: <16297.3166.937468.9288@alkaid.it.uu.se> (raw)
In-Reply-To: <20031104234828.GA1641@DualPrinzip>
Klaus Umbach writes:
> Hello Support Center :-)
>
> Since I have 2 CPUs on my mainboard and compiled the SMP-support in, I
> cannot use ide-scsi anymore. I guess it must have something to do with
> apic, because when I use "Local APIC support on uniprocessors", I have
> the same problem. With no SMP and no local APIC everything works fine.
> (except the second CPU, of course). Normal ide-cdrom support works, but
> recording CDs over atapi is not really what I want at the moment.
>
> Mainboard: MSI 694D pro
>
> 00:07.1 IDE interface: VIA Technologies, Inc. VT82C586A/B/VT82C686/A/B/VT8233/A/C/VT8235 PIPC Bus Master IDE (rev 10)
SMP by default uses the I/O-APIC, and may (depending on kernel version
and .config) also use ACPI, which in turn may trigger ACPI-controlled
PCI IRQ routing.
Try "acpi=off", "pci=noacpi" (or however that don't-use-ACPI-for-PCI
option is spelled), and "noapic" (don't use I/O-APIC).
/Mikael
next prev parent reply other threads:[~2003-11-05 14:42 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-11-04 23:48 ide-scsi and SMP does not work together Klaus Umbach
2003-11-05 14:42 ` Mikael Pettersson [this message]
2003-11-14 10:26 ` Klaus Umbach
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