On Thu 30-07-15 07:33:15, 河合英宏 / KAWAI，HIDEHIRO wrote: [...] > Are you using SGI UV? On that platform, NMIs may be delivered to > all cpus because LVT1 of all cpus are not masked as follows: This is Compute Blade 520XB1 from Hitachi with 240 cpus. -- Michal Hocko SUSE Labs