28 May, 2010

1 commit

• c9d221f86   fault-injection: add CPU notifier error injection module ... Browse Code »

  I used this module to test the series of modification to the cpu notifiers
  code.

  Example1: inject CPU offline error (-1 == -EPERM)

  # 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

  Example2: inject CPU online error (-2 == -ENOENT)

  # 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

  [akpm@linux-foundation.org: fix Kconfig help text]
  Signed-off-by: Akinobu Mita
  Signed-off-by: Andrew Morton
  Signed-off-by: Linus Torvalds

  Akinobu Mita

  2010-05-28 00:12:48 +0800