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=-1.0 required=3.0 tests=MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS 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 327FCC2BA19 for ; Tue, 14 Apr 2020 18:53:53 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 0C9802074D for ; Tue, 14 Apr 2020 18:53:53 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2504481AbgDNSxw convert rfc822-to-8bit (ORCPT ); Tue, 14 Apr 2020 14:53:52 -0400 Received: from mail.kernel.org ([198.145.29.99]:52646 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2504434AbgDNSxu (ORCPT ); Tue, 14 Apr 2020 14:53:50 -0400 From: bugzilla-daemon@bugzilla.kernel.org To: kvm@vger.kernel.org Subject: =?UTF-8?B?W0J1ZyAyMDcxNzNdIGt2bSBjb21waWxpbmcgcHJvYmxlbSA1LjYu?= =?UTF-8?B?eCBrdm1fbWFpbi5jOjIyMzY6NDI6IGVycm9yOiDigJhucl9wYWdlc19hdmFp?= =?UTF-8?B?bOKAmSBtYXkgYmUgdXNlZCB1bmluaXRpYWxpemVkIGluIHRoaXMgZnVuY3Rp?= =?UTF-8?B?b24=?= Date: Tue, 14 Apr 2020 18:53:49 +0000 X-Bugzilla-Reason: None X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: AssignedTo virtualization_kvm@kernel-bugs.osdl.org X-Bugzilla-Product: Virtualization X-Bugzilla-Component: kvm X-Bugzilla-Version: unspecified X-Bugzilla-Keywords: X-Bugzilla-Severity: blocking X-Bugzilla-Who: zoran.davidovac@gmail.com X-Bugzilla-Status: NEW X-Bugzilla-Resolution: X-Bugzilla-Priority: P1 X-Bugzilla-Assigned-To: virtualization_kvm@kernel-bugs.osdl.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 8BIT X-Bugzilla-URL: https://bugzilla.kernel.org/ Auto-Submitted: auto-generated MIME-Version: 1.0 Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org https://bugzilla.kernel.org/show_bug.cgi?id=207173 --- Comment #5 from zoran.davidovac@gmail.com --- I've back-ported kvm and instead loop changed to while as in 5.4 and I could compile it. But I found what the problem is. In short I can compile it with -O2 , -O2 -march=native, but NOT with -O3 with or without -march=native. Further more in kernel menuconfig optimization I see only O2 an Os(ize) now!? How to reproduce: -use my config -edit Makefile and replace -O2 to -O3 and you will get this error. I always compile stock kernel with -O3 -march=native for servers and my laptop with -Ofast -march=native for ages without any problem :) On error .kvm_main.o.cmd is not generated, thank you Sean, you made me look to something that I would never suspect as I had same compile problem on server, laptop and virtual server. -- You are receiving this mail because: You are watching the assignee of the bug.