Re: 2.5.64-mm6

Felipe Alfaro Solana (felipe_alfaro@linuxmail.org)
Thu, 13 Mar 2003 22:49:08 +0100

----- Original Message -----
From: Thomas Molina <tmolina@cox.net>
Date: Thu, 13 Mar 2003 14:35:18 -0600 (CST)
To: Andrew Morton <akpm@digeo.com>
Subject: Re: 2.5.64-mm6

> I downloaded the mm-6 patch and a pristine 2.5.64 tarball. After applying
> the patch I compiled with the standard configuration I've been using all
> along. No problems were noted during the compile cycle. During bootup
> the system locked up at the point where it did a modprobe uhci-hcd for the
> USB controller. Nothing of interest was noted in the log. I rebooted
> with nousb in the command line and got a good boot. After working with
> this kernel for awhile I don't see anything out of the ordainary except
> that on a 2.5.64-bk kernel I get 330 Kbytes per second download speed
> whereas with mm6 I get 280 Kbytes per second. Several runs show this is
> fairly consistent, with results within one or two percent.

Hmmm... I have experienced some hard locks similar to what
you describe: if I compile usb-uhci as a module, Phoebe3
(8.0.94) locks hard at the time of doing a "modprobe
usb-controller" (being usb-controller an alias for uhci-hcd)
during boot (rc.sysinit script). To fix this, I have had to compile
usb-uhci in to the kernel and then fix rc.sysinit. I haven't tried
using usb-uhci as a module since then.

What's curious is that doing a "modprobe usb-controller" by
hand doesn't cause hard locks. So, there must be some kind
of timing or interaction that's causing rc.sysinit to invoke
"modprobe uchi-hcd" and freeze the machine. Any ideas?

Felipe 

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