From: "Justin P. Mattock" <justinmattock@gmail.com>
To: "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
akinobu.mita@gmail.com
Subject: module param for CPU_NOTIFIER_ERROR_INJECT
Date: Sun, 21 Aug 2011 11:52:08 -0700 [thread overview]
Message-ID: <4E5153D8.7010607@gmail.com> (raw)
hello,
I am playing around with CPU_NOTIFIER_ERROR_INJECT and am noticing that
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.
the other proceedure does work:
example 1
# modprobe cpu-notifier-error-inject cpu_down_prepare_error=-1
# echo 0 > /sys/devices/system/cpu/cpu1/online
bash: echo: write error: Operation not permitted
dmesg shows:
[ 2427.924405] Injecting error (-1) at cpu notifier
[ 2427.930569] _cpu_down: attempt to take down CPU 1 failed
any ideas on what I need to do or is this working, and am I not seeing
anything in dmesg?
Justin P. Mattock
next reply other threads:[~2011-08-21 18:52 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-08-21 18:52 Justin P. Mattock [this message]
2011-08-22 12:48 ` module param for CPU_NOTIFIER_ERROR_INJECT Akinobu Mita
[not found] ` <CAKFRV=PSQT7Wt01gxirnkJEJv2GvQ7ELkd8QvxhT6BjXnBgQsw@mail.gmail.com>
2011-08-23 4:17 ` Justin P. Mattock
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