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Date:	Mon, 26 Feb 2007 18:07:48 -0500
From:	Chuck Ebbert <>
To:	Stephen Hemminger <>
CC:	linux-kernel <>,
Subject: Re: netconsole module cannot be removed

Stephen Hemminger wrote:
> On Mon, 26 Feb 2007 15:35:11 -0500
> Chuck Ebbert <> wrote:
>> Trying to remove netconsole, rmmod goes into a tight loop with
>> 100% CPU usage. It can't be killed with 'kill -9'. Shutdown
>> works, though. Kernel is 2.6.20 FC6 config, and I'm 99.9%
>> sure the module signing has nothing to do with this.
> No it probably has to do with printing a message during module removal.

Works fine in

Hangs in vanilla 2.6.20 in netpoll_cleanup()

Call trace: 

It varies, but is always in one of the first three functions when you
do alt-sysrq-p.

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