Re: Panic and page fault in loop during handling NMI backtracehandler

From: Steven Rostedt
Date: Tue Oct 15 2013 - 22:08:31 EST


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