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Date: Wed, 16 Oct 2013 02:09:47 +0000 From: "Liu, Chuansheng" <chuansheng.liu@...el.com> To: Steven Rostedt <rostedt@...dmis.org> CC: "Ingo Molnar (mingo@...nel.org)" <mingo@...nel.org>, "hpa@...or.com" <hpa@...or.com>, "fweisbec@...il.com" <fweisbec@...il.com>, "akpm@...ux-foundation.org" <akpm@...ux-foundation.org>, "paulmck@...ux.vnet.ibm.com" <paulmck@...ux.vnet.ibm.com>, "Peter Zijlstra (peterz@...radead.org)" <peterz@...radead.org>, "x86@...nel.org" <x86@...nel.org>, "'linux-kernel@...r.kernel.org' (linux-kernel@...r.kernel.org)" <linux-kernel@...r.kernel.org>, "Wang, Xiaoming" <xiaoming.wang@...el.com>, "Li, Zhuangzhi" <zhuangzhi.li@...el.com> Subject: RE: Panic and page fault in loop during handling NMI backtrace handler Hello Steven, > -----Original Message----- > From: Steven Rostedt [mailto:rostedt@...dmis.org] > Sent: Wednesday, October 16, 2013 10:08 AM > To: Liu, Chuansheng > Cc: Ingo Molnar (mingo@...nel.org); hpa@...or.com; fweisbec@...il.com; > akpm@...ux-foundation.org; paulmck@...ux.vnet.ibm.com; Peter Zijlstra > (peterz@...radead.org); x86@...nel.org; 'linux-kernel@...r.kernel.org' > (linux-kernel@...r.kernel.org); Wang, Xiaoming; Li, Zhuangzhi > Subject: Re: Panic and page fault in loop during handling NMI backtrace handler > > On Wed, 16 Oct 2013 01:54:51 +0000 > "Liu, Chuansheng" <chuansheng.liu@...el.com> wrote: > > > > > Since the NMI iretq nesting has been fixed, there's no reason that > > I think you patch fix the infinite loop, we will have a test soon. > > BTW, we are using 3.10, could you help to point out which NMI iretq nesting > patch? > > There were many. You can read about what was done here: > > https://lwn.net/Articles/484932/ > > The original is here: > > http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ccd49c > 2391773ffbf52bb80d75c4a92b16972517 > > But more were added. > > But that is back in 3.3, so 3.10 has all the required updates. Thanks your info, is trying your patch now. > > -- Steve -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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