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From: Paul Hartman <paul.hartman+gentoo@gmail.com>
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Subject: Re: [gentoo-user] unstoppable, undeciperable kernel call trace in log
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On Sat, Jun 30, 2012 at 4:57 PM, Maxim Wexler <maxim.wexler@gmail.com> wrote:
> Hi group,
>
> Please take a look at this  clip from /var/log/messages:
>
> https://paste.lugons.org/show/2679/
>
> Can somebody tell me what it means? It never changes, char by char. It
> goes on forever, over and over again. At one time I wanted kernel
> debugging, but I've returned to menuconfig and turned it off(I thought
> ).
>
> How do I stop this pointless verbosity?

Hi,

I don't have an answer, but if you google the phrase "rcu_bh detected
stall on CPU" you can find many reports similar to yours and maybe
some information.

Do you have RCU_CPU_STALL_INFO=y in your kernel config?