From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-1.1 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3BD2EC433E0 for ; Tue, 23 Jun 2020 02:44:24 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 1990B2075A for ; Tue, 23 Jun 2020 02:44:24 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=canb.auug.org.au header.i=@canb.auug.org.au header.b="TsxNejoi" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731775AbgFWCoW (ORCPT ); Mon, 22 Jun 2020 22:44:22 -0400 Received: from bilbo.ozlabs.org ([203.11.71.1]:39377 "EHLO ozlabs.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730456AbgFWCoV (ORCPT ); Mon, 22 Jun 2020 22:44:21 -0400 Received: from authenticated.ozlabs.org (localhost [127.0.0.1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange ECDHE (P-256) server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by mail.ozlabs.org (Postfix) with ESMTPSA id 49rVwb07zfz9sRh; Tue, 23 Jun 2020 12:44:14 +1000 (AEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=canb.auug.org.au; s=201702; t=1592880258; bh=TC3tqLIz+n4OEref9BzGDWrFGTvbjQ0IM7oHwGCme0k=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=TsxNejoisspUBFYOHzYQfMU8Mtf+1lfGcCdvRbN5fEOZtuBNONJLbvZVi4z+/2g8F Qm2vNnAkcpszF3ABMvyeJSVBsRJN9ecjVy9YnyUT8lnIBpVo2ytv/S89IvR824M0IN pxYY4H6WLPhHfyajoKrgh60uvDMvMFwnZIdl4s70XhelYvmgYfqBjuwh0dfi5euaLU /1XzOGi+03E6Y9kNIrqS2DvfbInsHX0tSM3R2GVpT9Lyub5LT4PTqDZK3Us11FZq60 cNgDFhC1sszvaABWUegsKfdnEM4E5/JRMK65sHVS+EUQkPnYBRLPrZi4JMgw/j1GEv EJu+X4cEa+5Eg== Date: Tue, 23 Jun 2020 12:44:13 +1000 From: Stephen Rothwell To: Peter Zijlstra Cc: syzbot , bp@alien8.de, hpa@zytor.com, jmattson@google.com, joro@8bytes.org, kvm@vger.kernel.org, linux-kernel@vger.kernel.org, linux-next@vger.kernel.org, mingo@redhat.com, pbonzini@redhat.com, sean.j.christopherson@intel.com, syzkaller-bugs@googlegroups.com, tglx@linutronix.de, vkuznets@redhat.com, wanpengli@tencent.com, x86@kernel.org, elver@google.com Subject: Re: linux-next build error (9) Message-ID: <20200623124413.08b2bd65@canb.auug.org.au> In-Reply-To: <20200622094923.GP576888@hirez.programming.kicks-ass.net> References: <000000000000c25ce105a8a8fcd9@google.com> <20200622094923.GP576888@hirez.programming.kicks-ass.net> MIME-Version: 1.0 Content-Type: multipart/signed; boundary="Sig_/e.qnKUb/HtDM9BzQZV5zrSJ"; protocol="application/pgp-signature"; micalg=pgp-sha256 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --Sig_/e.qnKUb/HtDM9BzQZV5zrSJ Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable Hi Peter, On Mon, 22 Jun 2020 11:49:23 +0200 Peter Zijlstra wr= ote: > > On Mon, Jun 22, 2020 at 02:37:12AM -0700, syzbot wrote: > > Hello, > >=20 > > syzbot found the following crash on: > >=20 > > HEAD commit: 27f11fea Add linux-next specific files for 20200622 > > git tree: linux-next > > console output: https://syzkaller.appspot.com/x/log.txt?x=3D138dc743100= 000 > > kernel config: https://syzkaller.appspot.com/x/.config?x=3D41c659db5ca= da6f4 > > dashboard link: https://syzkaller.appspot.com/bug?extid=3Ddbf8cf3717c8e= f4a90a0 > > compiler: gcc (GCC) 9.0.0 20181231 (experimental) > >=20 > > IMPORTANT: if you fix the bug, please add the following tag to the comm= it: > > Reported-by: syzbot+dbf8cf3717c8ef4a90a0@syzkaller.appspotmail.com > >=20 > > ./arch/x86/include/asm/kvm_para.h:99:29: error: inlining failed in call= to always_inline 'kvm_handle_async_pf': function attribute mismatch > > ./arch/x86/include/asm/processor.h:824:29: error: inlining failed in ca= ll to always_inline 'prefetchw': function attribute mismatch > > ./arch/x86/include/asm/current.h:13:44: error: inlining failed in call = to always_inline 'get_current': function attribute mismatch > > arch/x86/mm/fault.c:1353:1: error: inlining failed in call to always_in= line 'handle_page_fault': function attribute mismatch > > ./arch/x86/include/asm/processor.h:576:29: error: inlining failed in ca= ll to always_inline 'native_swapgs': function attribute mismatch > > ./arch/x86/include/asm/fsgsbase.h:33:38: error: inlining failed in call= to always_inline 'rdgsbase': function attribute mismatch > > ./arch/x86/include/asm/irq_stack.h:40:29: error: inlining failed in cal= l to always_inline 'run_on_irqstack_cond': function attribute mismatch > > ./include/linux/debug_locks.h:15:28: error: inlining failed in call to = always_inline '__debug_locks_off': function attribute mismatch > > ./include/asm-generic/atomic-instrumented.h:70:1: error: inlining faile= d in call to always_inline 'atomic_add_return': function attribute mismatch > > kernel/locking/lockdep.c:396:29: error: inlining failed in call to alwa= ys_inline 'lockdep_recursion_finish': function attribute mismatch > > kernel/locking/lockdep.c:4725:5: error: inlining failed in call to alwa= ys_inline '__lock_is_held': function attribute mismatch =20 >=20 > Hurmph, I though that was cured in GCC >=3D 8. Marco? So what causes this? Because we got a couple of these in our s390 builds la= st night as well. kernel/locking/lockdep.c:805:1: error: inlining failed in call to always_in= line 'look_up_lock_class': function attribute mismatch include/linux/debug_locks.h:15:28: error: inlining failed in call to always= _inline '__debug_locks_off': function attribute mismatch s390-linux-gcc (GCC) 8.1.0 / GNU ld (GNU Binutils) 2.30 --=20 Cheers, Stephen Rothwell --Sig_/e.qnKUb/HtDM9BzQZV5zrSJ Content-Type: application/pgp-signature Content-Description: OpenPGP digital signature -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEENIC96giZ81tWdLgKAVBC80lX0GwFAl7xbH4ACgkQAVBC80lX 0Gz/HAf+OkoHJ0nxoaDWNvkmBAm4xhg1OB0dpRaoirjK5bk7n/fAbNs22/GQVAhs Zkqxme/IAehOEAWIEWlHiYEu8HfTLwB1lWWEojg8sJeIVzUi6Z6ssC6H0W/+IwtE ibSjUohWeekOrL7L9IPglcCOHPAtHNj4Zb2Vu1jj4v9FIHCQyD5asidXq1NFWOC8 y7mLd49o0/qKWKmB+MdnpvYVeZcyFNp+HKijXGhGYR2LU+S2n9jIAeDFVybYdrKQ 5A6rX6QyZ/0kqRP7n1oOlBSzwA8duHJklZmJWhULPGniLvoMKIA20R9h9DB/sYac OD/20J1gXckXBf56UngA6pm3rMH2xA== =RQtf -----END PGP SIGNATURE----- --Sig_/e.qnKUb/HtDM9BzQZV5zrSJ--