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Date: Mon, 12 Aug 2013 17:57:20 +0200 From: Ingo Molnar <mingo@...nel.org> To: "H. Peter Anvin" <hpa@...or.com> Cc: Peter Zijlstra <peterz@...radead.org>, Borislav Petkov <bp@...en8.de>, Steven Rostedt <rostedt@...dmis.org>, linux-kernel@...r.kernel.org, Linus Torvalds <torvalds@...ux-foundation.org>, Andrew Morton <akpm@...ux-foundation.org>, Thomas Gleixner <tglx@...utronix.de>, Jason Baron <jbaron@...mai.com> Subject: Re: [PATCH 4/4] x86/jump-label: Show where and what was wrong on errors * H. Peter Anvin <hpa@...or.com> wrote: > On 08/12/2013 07:31 AM, Peter Zijlstra wrote: > > On Wed, Aug 07, 2013 at 07:20:44PM +0200, Borislav Petkov wrote: > >> Besides, BUG can be disabled in CONFIG_EXPERT. > > > > There was some email on this subject a while ago; disabling BUG() is > > very risky and can cause all kinds of horrid. IIRC the consensus back > > then was to remove this 'feature' and have BUG always at least lock up > > the machine hard. > > Yes, always trap but leave the metadata as optional. I think those patches are going forward, so we can just regard BUG() as always existing from a program flow POV. Thanks, Ingo -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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