From: Chuck Ebbert <cebbert@redhat.com>
To: Stephen Hemminger <shemminger@linux-foundation.org>
Cc: linux-kernel <linux-kernel@vger.kernel.org>, netdev@vger.kernel.org
Subject: Re: netconsole module cannot be removed
Date: Mon, 26 Feb 2007 18:07:48 -0500 [thread overview]
Message-ID: <45E36844.5040402@redhat.com> (raw)
In-Reply-To: <20070226133156.3bfd2a74@freekitty>
Stephen Hemminger wrote:
> On Mon, 26 Feb 2007 15:35:11 -0500
> Chuck Ebbert <cebbert@redhat.com> 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 2.6.19.5
Hangs in vanilla 2.6.20 in netpoll_cleanup()
Call trace:
flush_cpu_workqueue
flush_workqueue
cancel_rearming_delayed_workqueue
netpoll_cleanup
sys_delete_module
It varies, but is always in one of the first three functions when you
do alt-sysrq-p.
prev parent reply other threads:[~2007-02-26 23:24 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-02-26 20:35 netconsole module cannot be removed Chuck Ebbert
[not found] ` <20070226133156.3bfd2a74@freekitty>
2007-02-26 21:40 ` Chuck Ebbert
2007-02-26 23:07 ` Chuck Ebbert [this message]
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