lkml.org 
[lkml]   [2017]   [Dec]   [30]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: 4.14.9 doesn't boot (regression)
On Fri, 29 Dec 2017, Linus Torvalds wrote:

> Ok, so what does seem to be consistent for everybody is that
> double-fault in the NMI backtrace.
>
> So the fact that the NMI always hits on a double-fault does make me
> suspect that it's a infinite stream of double-faults, and that is
> presumably also what causes the RCU timeout.

As I've been fighting with recursive double-faults lately (backporting PTI
to ancient kernels), I can tell you that this is not the symptom you'd be
seeing in such case; recursive double fault pretty quickly overflows the
interrupt stack and triple-faults.

--
Jiri Kosina
SUSE Labs

\
 
 \ /
  Last update: 2017-12-30 11:03    [W:0.066 / U:7.408 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site