From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: Greg KH <greg@kroah.com>
Cc: Ed Wildgoose <Ed@Wildgooses.com>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: Interrupt problem, no USB on SMP machine with 2.4.19/20/21
Date: 07 Mar 2003 23:35:50 +0000 [thread overview]
Message-ID: <1047080149.23803.25.camel@irongate.swansea.linux.org.uk> (raw)
In-Reply-To: <20030307221343.GC21315@kroah.com>
On Fri, 2003-03-07 at 22:13, Greg KH wrote:
> Have you booted with "noapic" on the command line? That's the only way
> a lot of VIA motherboards will get their onboard USB controller to work
> properly.
VIA onboard devices require the interrupt line and pin are both written in
APIC mode. Linux for reasons I still don't understand does not do that by
default. The current -ac tree has a quirk for this although it doesnt seem
to be working for all cases and needs a victim to review it more carefully
next prev parent reply other threads:[~2003-03-07 22:19 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-03-07 19:42 Ed Wildgoose
2003-03-07 22:13 ` Greg KH
2003-03-07 23:35 ` Alan Cox [this message]
2003-03-07 23:27 ` Edward Wildgoose
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