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由 Thomas Gleixner 提交于
commit b352bc1c (tick: Convert broadcast cpu bitmaps to cpumask_var_t) broke CONFIG_CPUMASK_OFFSTACK in a very subtle way. Instead of allocating the cpumasks with zalloc_cpumask_var it uses alloc_cpumask_var, so we can get random data there, which of course confuses the logic completely and causes random failures. Reported-and-tested-by: NDave Jones <davej@redhat.com> Reported-and-tested-by: NYinghai Lu <yinghai@kernel.org> Link: http://lkml.kernel.org/r/alpine.LFD.2.02.1305032015060.2990@ionosSigned-off-by: NThomas Gleixner <tglx@linutronix.de> Signed-off-by: NIngo Molnar <mingo@kernel.org>
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