[PATCH v2 1/4] nmi_backtrace: add more trigger_*_cpu_backtrace() methods
From: peterz@infradead.org (Peter Zijlstra)
Date: 2016-03-17 23:11:41
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On Thu, Mar 17, 2016 at 03:55:57PM -0700, Paul E. McKenney wrote:
The RCU stall-warn stack traces can be ugly, agreed.
Ugly isn't the problem, completely random bollocks that puts you on the wrong path was more the problem. It uses a stack pointer saved at some random time in the past to start unwinding an active stack from. Completely and utter misery.