From: Pete Toscano <pete.lkml@toscano.org>
To: kernel <linux-kernel@vger.kernel.org>
Subject: Re: Hi all, a strange full lock in SMP-kernel 2.4.6 and 2.4.5
Date: Sat, 7 Jul 2001 16:34:00 -0400 [thread overview]
Message-ID: <20010707163400.B3983@bubba.toscano.org> (raw)
In-Reply-To: <20010707021356.A2232@eresmas.net> <20010706235324.A19386@bubba.toscano.org>
In-Reply-To: <20010706235324.A19386@bubba.toscano.org>; from pete.lkml@toscano.org on Fri, Jul 06, 2001 at 11:53:24PM -0400
Just to follow up to myself, after futher testing, it looks like it's an
SMP-related problem. I'm not yet sure if it's an SMP-Via chipset
problem or just an SMP problem. I've heard from two people with this
same problem. I think one of them has a Via chipset and I'm not sure
about the other one.
Can anybody look into this or give me a good brain dump on how I can fix
it?
Thanks,
pete
On Fri, 06 Jul 2001, Pete Toscano wrote:
> I think I've seen this same problem, at least with regards to USB
> printing. Yesterday, I traced the problem down to a patch to usb-uhci.c
> in the transition from 2.4.3 to 2.4.4. The problem persists today. A
> work around for this problem is to use the alternate UHCI driver
> (uhci.o).
>
> What motherboard and chipset are you using. I use the Tyan Tiger 133
> motherboard with the VIA Apollo Pro 133a chipset. Someone else who I
> heard from uses another VIA-based chipset (I think, he never replied to
> my question). Maybe this is a VIA-related problem, like the APIC
> problem is. (Do you use "noapic" when you boot? He and I both have SMP
> systems too....)
>
> I posted something on the linux-usb list yesterday about this problem
> and with all the info I was able to track down, but I have yet to see
> any response. I've taken this as far as I can by myself. I don't know
> enough about kernel programming or about USB to check the code in
> usb-uhci.c, but I'm more than happy to help by providing information
> and/or testing potential patches/fixes.
>
> pete
prev parent reply other threads:[~2001-07-07 20:34 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-07-07 1:13 Hi all, a strange full lock in SMP-kernel 2.4.6 and 2.4.5 linuxx
2001-07-07 3:53 ` Pete Toscano
2001-07-07 20:34 ` Pete Toscano [this message]
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