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From: Steven Rostedt <rostedt@goodmis.org>
To: "Liu, Chuansheng" <chuansheng.liu@intel.com>
Cc: "Ingo Molnar (mingo@kernel.org)" <mingo@kernel.org>,
	"hpa@zytor.com" <hpa@zytor.com>,
	"fweisbec@gmail.com" <fweisbec@gmail.com>,
	"akpm@linux-foundation.org" <akpm@linux-foundation.org>,
	"paulmck@linux.vnet.ibm.com" <paulmck@linux.vnet.ibm.com>,
	"Peter Zijlstra (peterz@infradead.org)" <peterz@infradead.org>,
	"x86@kernel.org" <x86@kernel.org>,
	"'linux-kernel@vger.kernel.org' (linux-kernel@vger.kernel.org)" 
	<linux-kernel@vger.kernel.org>,
	"Wang, Xiaoming" <xiaoming.wang@intel.com>,
	"Li, Zhuangzhi" <zhuangzhi.li@intel.com>
Subject: Re: Panic and page fault in loop during handling NMI backtrace handler
Date: Tue, 15 Oct 2013 22:07:55 -0400	[thread overview]
Message-ID: <20131015220755.5ee861d5@gandalf.local.home> (raw)
In-Reply-To: <27240C0AC20F114CBF8149A2696CBE4A01B630C1@SHSMSX101.ccr.corp.intel.com>

On Wed, 16 Oct 2013 01:54:51 +0000
"Liu, Chuansheng" <chuansheng.liu@intel.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=ccd49c2391773ffbf52bb80d75c4a92b16972517

But more were added.

But that is back in 3.3, so 3.10 has all the required updates.

-- Steve

  reply	other threads:[~2013-10-16  2:08 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <27240C0AC20F114CBF8149A2696CBE4A01B60835@SHSMSX101.ccr.corp.intel.com>
2013-10-15 12:18 ` Frederic Weisbecker
2013-10-15 12:37   ` Peter Zijlstra
2013-10-15 12:48     ` Paul E. McKenney
2013-10-15 12:59       ` Frederic Weisbecker
2013-10-15 13:06         ` Paul E. McKenney
2013-10-15 13:17           ` Frederic Weisbecker
2013-10-15 13:27             ` Paul E. McKenney
2013-10-15 12:54     ` Frederic Weisbecker
2013-10-15 14:19       ` Steven Rostedt
2013-10-15 16:40 ` Steven Rostedt
2013-10-16  1:54   ` Liu, Chuansheng
2013-10-16  2:07     ` Steven Rostedt [this message]
2013-10-16  2:09       ` Liu, Chuansheng

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