From: "Rafael J. Wysocki" <rjw@sisk.pl>
To: Pavel Machek <pavel@ucw.cz>
Subject: Re: 2.6.12-rc1-mm1: resume regression [update] (was: Re: 2.6.12-rc1-mm1: Kernel BUG at pci:389)
Date: Wed, 23 Mar 2005 23:29:49 +0100
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Cc: Andrew Morton <akpm@osdl.org>, Greg KH <greg@kroah.com>,
       Len Brown <len.brown@intel.com>, LKML <linux-kernel@vger.kernel.org>,
       Shaohua Li <shaohua.li@intel.com>
References: <20050322013535.GA1421@elf.ucw.cz> <20050322110126.GB1780@elf.ucw.cz> <200503222249.54091.rjw@sisk.pl>
In-Reply-To: <200503222249.54091.rjw@sisk.pl>
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Hi,

On Tuesday, 22 of March 2005 22:49, Rafael J. Wysocki wrote:
> Hi,
> 
> On Tuesday, 22 of March 2005 12:01, Pavel Machek wrote:
> > Hi!
> > 
> > > Will this do it for the moment?
> > 
> > Its certainly better.
> 
> With the Len's patch applied I have to unload the modules:
> 
> ohci_hcd
> ehci_hcd
> yenta_socket
> 
> before suspend as each of them hangs the box solid during either
> suspend or resume.  Moreover, when I tried to load the ehci_hcd
> module back after resume, it hanged the box solid too.

This behavior is apparently caused by the call to pci_write_config_word() with
pmcsr = 0 in drivers/pci/pci.c:pci_set_power_state().

Well, I don't think I can do anything more about it myself. :-)

Greets,
Rafael


-- 
- Would you tell me, please, which way I ought to go from here?
- That depends a good deal on where you want to get to.
		-- Lewis Carroll "Alice's Adventures in Wonderland"
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