Message-ID: <405C979A.8070200@gmx.de>
Date: Sat, 20 Mar 2004 20:12:26 +0100
From: "Prakash K. Cheemplavam" <PrakashKC@gmx.de>
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To: Zilvinas Valinskas <zilvinas@gemtek.lt>
CC: Linus Torvalds <torvalds@osdl.org>,
       Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: Linux 2.6.5-rc2, hotplug and ohci-hcd issue
References: <Pine.LNX.4.58.0403191937160.1106@ppc970.osdl.org> <405C1B14.6000206@gmx.de> <20040320132334.GB13028@gemtek.lt>
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Zilvinas Valinskas wrote:
> Exactly the same here on Debian/Unstable 2.6.5-rc2.
> 
> Though I can't say it locks up on. Remove modules manually
> rmmod ehci_hcd
> rmmod ohci_hcd
> 
> Usually it takes some time and eventually rmmod returns successfully
> removing modules !
[snip]

You could also try to run /etc/hotplug/usb.rc stop and 
/etc/hotplug/usb.rc start in case you have those scripts.

> On Sat, Mar 20, 2004 at 11:21:08AM +0100, Prakash K. Cheemplavam wrote:
>>
>>it already started with 2.6.5-rc1: On shutdown/reboot when hotplug 
>>service stops, it hangs. I found out that hotplug has trouble in 
>>removing ohci-hcd module, ie, it doesn't seem to work. killall -9 rmmod 
>>doesn't remove that process, neither. (Module unloading is in the kernel).

I maybe found something: I compiled "force module unloading" into 
kernel, and now it doesn't seem to hang, though I don't understand why 
it should make a difference, as nothing is forced. I have to test a bit 
more.

Prakash
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