linux-kernel - Re: Random panic in load

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Date:	Sat, 26 Jul 2014 22:20:55 +0200
From:	Markus Trippelsdorf <markus@...ppelsdorf.de>
To:	Theodore Ts'o <tytso@....edu>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Steven Rostedt <rostedt@...dmis.org>,
	Alexei Starovoitov <ast@...nel.org>,
	Michel Dänzer <michel@...nzer.net>,
	Jakub Jelinek <jakub@...hat.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Debian GCC Maintainers <debian-gcc@...ts.debian.org>,
	Debian Kernel Team <debian-kernel@...ts.debian.org>
Subject: Re: Random panic in load_balance() with 3.16-rc

On 2014.07.26 at 15:55 -0400, Theodore Ts'o wrote:
> On Sat, Jul 26, 2014 at 09:35:57PM +0200, Markus Trippelsdorf wrote:
> > 
> > But fortunately the workaround for the new inode.c bug is the same as
> > for the original bug: -fno-var-tracking-assignments. 
> > 
> > It would make sense to enabled it unconditionally for all debug
> > configurations for now.
> 
> What's the downside of enabling this unconditionally on a compiler
> with the bug fixed?  I assume a certain amount of optimization will
> lost, but is it significant/measurable?

Only the quality of the debug info would suffer a bit.

-- 
Markus
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