Subject: Re: tip -ENOBOOT - bisected to locking/refcounts, x86/asm: Implement fast refcount overflow protection

From: Mike Galbraith <[email-masked]>
Date: Thu, 31 Aug 2017 19:19:27 +0200

On Thu, 2017-08-31 at 10:00 -0700, Kees Cook wrote:
> 
> Oh! So it's gcc-version sensitive? That's alarming. Is this mapping correct:
> 
> 4.8.5: WARN, eventual kernel hang
> 6.3.1, 7.0.1: WARN, but continues working

Yeah, that's correct.  I find that troubling, simply because this gcc
version has been through one hell of a lot of kernels with me.  Yeah, I
know, that doesn't exempt it from having bugs, but color me suspicious.

	-Mike