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=-8.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED autolearn=ham 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 40B63C433DB for ; Mon, 8 Feb 2021 22:32:39 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 56E1064EA6 for ; Mon, 8 Feb 2021 22:32:38 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 56E1064EA6 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=bugs.launchpad.net Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:47402 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1l9F5B-0003eP-6W for qemu-devel@archiver.kernel.org; Mon, 08 Feb 2021 17:32:37 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:49270) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1l9B9S-0007oG-QT for qemu-devel@nongnu.org; Mon, 08 Feb 2021 13:20:46 -0500 Received: from indium.canonical.com ([91.189.90.7]:40020) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1l9B9N-0004j3-4k for qemu-devel@nongnu.org; Mon, 08 Feb 2021 13:20:46 -0500 Received: from loganberry.canonical.com ([91.189.90.37]) by indium.canonical.com with esmtp (Exim 4.86_2 #2 (Debian)) id 1l9B9K-00046a-2a for ; Mon, 08 Feb 2021 18:20:38 +0000 Received: from loganberry.canonical.com (localhost [127.0.0.1]) by loganberry.canonical.com (Postfix) with ESMTP id E48AF2E813B for ; Mon, 8 Feb 2021 18:20:37 +0000 (UTC) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Date: Mon, 08 Feb 2021 18:08:14 -0000 From: Roman Bolshakov <1914849@bugs.launchpad.net> To: qemu-devel@nongnu.org X-Launchpad-Notification-Type: bug X-Launchpad-Bug: product=qemu; status=New; importance=Undecided; assignee=None; X-Launchpad-Bug-Tags: macos tcg X-Launchpad-Bug-Information-Type: Public X-Launchpad-Bug-Private: no X-Launchpad-Bug-Security-Vulnerability: no X-Launchpad-Bug-Commenters: hikalium roolebo tnishinaga X-Launchpad-Bug-Reporter: Toshifumi NISHINAGA (tnishinaga) X-Launchpad-Bug-Modifier: Roman Bolshakov (roolebo) References: <161259505296.24527.7729976640303273029.malonedeb@wampee.canonical.com> Message-Id: <161280769492.2878.8851519112088854609.malone@chaenomeles.canonical.com> Subject: [Bug 1914849] Re: mprotect fails after MacOS 11.2 on arm mac X-Launchpad-Message-Rationale: Subscriber (QEMU) @qemu-devel-ml X-Launchpad-Message-For: qemu-devel-ml Precedence: bulk X-Generated-By: Launchpad (canonical.com); Revision="e34ce994f03aae76d4610a97bccf86c0f2cf9f70"; Instance="production" X-Launchpad-Hash: d68f3c6a975682578c799e54c386dbe1635487e7 Received-SPF: none client-ip=91.189.90.7; envelope-from=bounces@canonical.com; helo=indium.canonical.com X-Spam_score_int: -65 X-Spam_score: -6.6 X-Spam_bar: ------ X-Spam_report: (-6.6 / 5.0 requ) BAYES_00=-1.9, HEADER_FROM_DIFFERENT_DOMAINS=0.249, RCVD_IN_DNSWL_HI=-5, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_NONE=0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: Bug 1914849 <1914849@bugs.launchpad.net> Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" The patch can be used as a workaround for now: diff --git a/util/osdep.c b/util/osdep.c index 66d01b9160..76be8c295b 100644 --- a/util/osdep.c +++ b/util/osdep.c @@ -110,6 +110,9 @@ int qemu_mprotect_none(void *addr, size_t size) { #ifdef _WIN32 return qemu_mprotect__osdep(addr, size, PAGE_NOACCESS); +#elif defined(__APPLE__) && defined(__arm64__) + /* Workaround mprotect (RWX->NONE) issue on Big Sur 11.2 */ + return 0; #else return qemu_mprotect__osdep(addr, size, PROT_NONE); #endif -- = You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. https://bugs.launchpad.net/bugs/1914849 Title: mprotect fails after MacOS 11.2 on arm mac Status in QEMU: New Bug description: I got the following error when I ran qemu on arm mac(MacOS 11.2). ``` $ ./qemu-system-x86_64 qemu-system-x86_64: qemu_mprotect__osdep: mprotect failed: Permission den= ied ** ERROR:../tcg/tcg.c:844:tcg_region_init: assertion failed: (!rc) Bail out! ERROR:../tcg/tcg.c:844:tcg_region_init: assertion failed: (!rc) [1] 34898 abort ./qemu-system-x86_64 ``` I tested the same version of qemu on intel mac(MacOS 11.2), but it works fine. And my friend told me that they did not have this error with MacOS 11.1. So, I think it is CPU architecture or an OS version dependent error. = Environment: Qemu commit id: d0dddab40e472ba62b5f43f11cc7dba085dabe71 OS: MacOS 11.2(20D64) Hardware: MacBook Air (M1, 2020) = How to build: ``` mkdir build/ cd build/ ../configure --target-list=3Daarch64-softmmu,x86_64-softmmu make ``` = How to reproduce: ``` ./qemu-system-x86_64 ``` = Error message: ``` $ ./qemu-system-x86_64 qemu-system-x86_64: qemu_mprotect__osdep: mprotect failed: Permission den= ied ** ERROR:../tcg/tcg.c:844:tcg_region_init: assertion failed: (!rc) Bail out! ERROR:../tcg/tcg.c:844:tcg_region_init: assertion failed: (!rc) [1] 34898 abort ./qemu-system-x86_64 ``` To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/1914849/+subscriptions