From mboxrd@z Thu Jan 1 00:00:00 1970 From: Steven Rostedt Subject: Re: linux-next: ftrace tree build failure Date: Tue, 25 Nov 2008 00:44:16 -0500 Message-ID: <1227591856.7622.26.camel@localhost.localdomain> References: <20081125142105.2b6d464a.sfr@canb.auug.org.au> <1227584931.7622.11.camel@localhost.localdomain> <20081125151345.3f0ed493.sfr@canb.auug.org.au> <1227587493.7622.14.camel@localhost.localdomain> <20081125160935.2bd3dcb2.sfr@canb.auug.org.au> Mime-Version: 1.0 Content-Type: text/plain Content-Transfer-Encoding: 7bit Return-path: Received: from mx2.redhat.com ([66.187.237.31]:40935 "EHLO mx2.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750894AbYKYFpY (ORCPT ); Tue, 25 Nov 2008 00:45:24 -0500 In-Reply-To: <20081125160935.2bd3dcb2.sfr@canb.auug.org.au> Sender: linux-next-owner@vger.kernel.org List-ID: To: Stephen Rothwell Cc: Thomas Gleixner , Ingo Molnar , "H. Peter Anvin" , linux-next@vger.kernel.org On Tue, 2008-11-25 at 16:09 +1100, Stephen Rothwell wrote: > Hi Steve, > > On Mon, 24 Nov 2008 23:31:33 -0500 Steven Rostedt wrote: > > > > This may be a compiler bug, or something introduced by the compiler. I > > compiled it fine first with gcc 4.0.2, but then tried with the same > > compiler you used, and got the same error as you. > > A quick bisect points to this commit: > > commit 2bcd521a684cc94befbe2ce7d5b613c841b0d304 > Author: Steven Rostedt > Date: Fri Nov 21 01:30:54 2008 -0500 > > trace: profile all if conditionals > > I guess something in there is tickling the compiler ... Yep, it was the wrong constraint used in the asm. Googling around, I found a similar bug listed in gcc, which was not a bug. Patch has been sent to fix this. Ah, I forgot to Cc Peter on that patch. I'll bounce it to him ;-) -- Steve