linux-kernel - Re: module param for CPU_NOTIFIER_ERROR

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Message-ID: <CAC5umyh3S0Xrc0OOXk7TzsQqF0t1ostKtR_5hqFwN_EkcgwuxA@mail.gmail.com>
Date:	Mon, 22 Aug 2011 21:48:49 +0900
From:	Akinobu Mita <akinobu.mita@...il.com>
To:	"Justin P. Mattock" <justinmattock@...il.com>
Cc:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: module param for CPU_NOTIFIER_ERROR_INJECT

2011/8/22 Justin P. Mattock <justinmattock@...il.com>:

> example 2
> # modprobe cpu-notifier-error-inject cpu_up_prepare_error=-2
> # echo 1 > /sys/devices/system/cpu/cpu1/online
> bash: echo: write error: No such file or directory
>
> is not working for me, or atleast is not showing me any info that it is
> working.

I suspect that cpu-notifier-error-inject module is already loaded and
the module parameter is just ignored when you run above commands.

Please retry it after rmmod or change that parameter through
/sys/module/cpu-error-inject/parameters/cpu_up_prepare_error.
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