* netconsole module cannot be removed
@ 2007-02-26 20:35 Chuck Ebbert
[not found] ` <20070226133156.3bfd2a74@freekitty>
0 siblings, 1 reply; 3+ messages in thread
From: Chuck Ebbert @ 2007-02-26 20:35 UTC (permalink / raw)
To: netdev; +Cc: linux-kernel
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.
^ permalink raw reply [flat|nested] 3+ messages in thread[parent not found: <20070226133156.3bfd2a74@freekitty>]
* Re: netconsole module cannot be removed [not found] ` <20070226133156.3bfd2a74@freekitty> @ 2007-02-26 21:40 ` Chuck Ebbert 2007-02-26 23:07 ` Chuck Ebbert 1 sibling, 0 replies; 3+ messages in thread From: Chuck Ebbert @ 2007-02-26 21:40 UTC (permalink / raw) To: Stephen Hemminger; +Cc: linux-kernel, netdev 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. > Yeah that could explain it. But when I load it after the network has started I can't get it to output any kernel messages to the network interface, either. I'll try to reproduce this on a vanilla kernel next... ^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: netconsole module cannot be removed [not found] ` <20070226133156.3bfd2a74@freekitty> 2007-02-26 21:40 ` Chuck Ebbert @ 2007-02-26 23:07 ` Chuck Ebbert 1 sibling, 0 replies; 3+ messages in thread From: Chuck Ebbert @ 2007-02-26 23:07 UTC (permalink / raw) To: Stephen Hemminger; +Cc: linux-kernel, netdev 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. ^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2007-02-26 23:24 UTC | newest]
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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
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