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=-0.6 required=3.0 tests=DKIM_ADSP_CUSTOM_MED, FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM,HEADER_FROM_DIFFERENT_DOMAINS, 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 1C273C3276C for ; Thu, 2 Jan 2020 13:36:27 +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 E0F6F20863 for ; Thu, 2 Jan 2020 13:36:26 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org E0F6F20863 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:41156 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1in0eI-0001nw-1V for qemu-devel@archiver.kernel.org; Thu, 02 Jan 2020 08:36:26 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:57693) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1in0dS-0000z8-OA for qemu-devel@nongnu.org; Thu, 02 Jan 2020 08:35:36 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1in0dR-0008LH-Hd for qemu-devel@nongnu.org; Thu, 02 Jan 2020 08:35:34 -0500 Received: from indium.canonical.com ([91.189.90.7]:46046) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1in0dR-0008JB-CH for qemu-devel@nongnu.org; Thu, 02 Jan 2020 08:35:33 -0500 Received: from loganberry.canonical.com ([91.189.90.37]) by indium.canonical.com with esmtp (Exim 4.86_2 #2 (Debian)) id 1in0dP-0006DF-On for ; Thu, 02 Jan 2020 13:35:31 +0000 Received: from loganberry.canonical.com (localhost [127.0.0.1]) by loganberry.canonical.com (Postfix) with ESMTP id B94A32E80CB for ; Thu, 2 Jan 2020 13:35:31 +0000 (UTC) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Date: Thu, 02 Jan 2020 13:28:08 -0000 From: crocket To: qemu-devel@nongnu.org X-Launchpad-Notification-Type: bug X-Launchpad-Bug: product=qemu; status=New; importance=Undecided; assignee=None; X-Launchpad-Bug-Information-Type: Public X-Launchpad-Bug-Private: no X-Launchpad-Bug-Security-Vulnerability: no X-Launchpad-Bug-Commenters: crockabiscuit laurent-vivier X-Launchpad-Bug-Reporter: crocket (crockabiscuit) X-Launchpad-Bug-Modifier: crocket (crockabiscuit) References: <155806778498.21734.945063058665872727.malonedeb@chaenomeles.canonical.com> Message-Id: <157797168886.5882.6380213761362019230.malone@gac.canonical.com> Subject: [Bug 1829459] Re: qemu seems to lack support for pid namespace. 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="bceb5ef013b87ef7aafe0755545ceb689ca7ac60"; Instance="production-secrets-lazr.conf" X-Launchpad-Hash: 950ea71d0b0f3b11835710cff7b30a8203321923 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 91.189.90.7 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 1829459 <1829459@bugs.launchpad.net> Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" In a native chroot, `sudo unshare --pid -- echo hello world` works without a problem. In a qemu-aarch64 chroot, `sudo unshare --keep-caps --pid -- echo hello world` fails with the same error described in this issue. `qemu: qemu_thread_create: Invalid argument` -- = You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. https://bugs.launchpad.net/bugs/1829459 Title: qemu seems to lack support for pid namespace. Status in QEMU: New Bug description: # Version qemu-4.0.0 glibc-2.28 # commands used to launch qemu-aarch64 in user mode. : ${QEMU_BINFMT_FLAGS:=3DOC} printf '%s\n' ':qemu- aarch64:M::\x7fELF\x02\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x0= 0\xb7\x00:\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\= xfe\xff\xff\xff:/usr/bin /qemu-aarch64:'"${QEMU_BINFMT_FLAGS}" >/proc/sys/fs/binfmt_misc/register > sudo cp /usr/bin/qemu-aarch64 $RPI/usr/bin > sudo chroot $RPI /bin/ksh -l # host Gentoo Linux amd64 # Guest Gentoo Linux aarch64 # The problem that I have "emerge" program fails due to the error, "qemu: qemu_thread_create: Inval= id argument". "emerge" is Gentoo's package manager that compiles and installs packages. # Workaround Disable pid-sandbox in emerge. # How to reproduce the issue Execute unshare --pid -- echo hello world or python -c "import portage.process; portage.process.spawn(['echo', 'hello', 'world'], unshare_pid=3DTrue)" To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/1829459/+subscriptions