From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: David Brownell <david-b@pacbell.net>
Cc: Linux-USB <linux-usb-devel@lists.sourceforge.net>,
Colin Leroy <colin@colino.net>,
Linux Kernel list <linux-kernel@vger.kernel.org>,
Greg KH <greg@kroah.com>
Subject: Re: [linux-usb-devel] [PATCH] Ohci-hcd: fix endless loop
Date: Sat, 27 Nov 2004 09:07:49 +1100 [thread overview]
Message-ID: <1101506869.28109.26.camel@gaston> (raw)
In-Reply-To: <200411260838.10508.david-b@pacbell.net>
> If you got the "IRQ INTR_SF lossage" diagnostic, there's clearly
> some problem with IRQ handling after the resume ... is the iBook
> firmware (or hardware) doing wierd stuff so that the normal PCI
> IRQ calls stopped working?
The iBook hardware isn't doing anything special, the controller is just
coming back out of the blue. If it's the NEC one, it's just a normal NEC
EHCI+OHCI coming out of D3cold, if it's the KeyLargo Apple one, it comes
from some special state which is similar to D2.
Ben.
prev parent reply other threads:[~2004-11-26 22:13 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-11-25 18:17 Colin Leroy
2004-11-26 16:38 ` [linux-usb-devel] " David Brownell
2004-11-26 16:54 ` Colin Leroy
2004-11-26 17:21 ` David Brownell
2004-11-26 22:07 ` Benjamin Herrenschmidt [this message]
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