On Thu, Apr 12, 2018 at 01:59:32PM +0800, Chenggang wrote: > > > On 2018/4/12 下午1:22, Oliver Yang wrote: > > On 2018/4/12 下午12:58, chenggang.qin@xxxxxxxxxxxxxxxxx wrote: > > > From: Andy Lutomirski <luto@xxxxxxxxxx> > > > > > > commit: 9d05041679904b12c12421cbcf9cb5f4860a8d7b upstream > > > > > > 32-bit kernels handle nested NMIs in C. Enable the exact same > > > handling on 64-bit kernels as well. This isn't currently > > > necessary, but it will become necessary once the asm code starts > > > allowing limited nesting. > > > > > 好奇为什么移植这个 patch？ > > > > Linux Nested NMI 的设计很丑陋，过去主要是为了 trace 和 debug 不得已而为之，我们踩中啥坑了？ > 执行perf，触发了NMI Nesting： > https://aone.alibaba-inc.com/issue/14185470 Could you guys maybe keep private stuff private? :-)