Received: by 2002:a25:868d:0:0:0:0:0 with SMTP id z13csp1220556ybk; Thu, 14 May 2020 03:37:46 -0700 (PDT) X-Google-Smtp-Source: ABdhPJzMbf5XZ8fZYImWp02eKjkddzkieQILLOwDRE20kG+HvHkOkOaxtZCz9JVWzhBZfjdoio1E X-Received: by 2002:a17:906:dbc9:: with SMTP id yc9mr3188805ejb.157.1589452666107; Thu, 14 May 2020 03:37:46 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1589452666; cv=none; d=google.com; s=arc-20160816; b=rXzQcBDMdzE5djv/brFQRz2beXynrHWal3QQ/y4JnEHx6pZ8fKkqO4zCs2D606TTX9 60aYAXsF7eRhlRoJaIRDolJZFlhV2eluQpemXo+xlKyPA0K7ZhA6/wQvgtfu1S1TLcp6 goKiLPzatRsjHCtcibXZZCU6QlRCcKgqCwGEh1ov5eIIBE/nK92A0bCAzi6AVWv5ix7T SLI8XiBQvNhRYkmOTvrCdZneQ7YaeZ2HfoW3TRMMtc9EGc4ytcQwLJ30Tp5+kMCxyfon gsoULLkdTdCWBEQWHzMw9q818+3iogDH8nyI4yxTtwRm4mx6FbaevDdD8295GshKhMzO JQCQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:content-transfer-encoding :content-language:in-reply-to:mime-version:user-agent:date :message-id:autocrypt:from:references:cc:to:subject; bh=9ymQzomjUP8RREZ5lCJEvCrSiPJB6D8+ux45HHIYWE8=; b=VfnU+pkxXPRekzkwIH8imjYVAd1pvi4lRcyrhsKWM3egg/hxHR6VYBiihw7SIm5L9u oQ+VUddGFlcLuQY+40gnPoADgwp/MJPutqfoZGoE2fxeNwbS3YEAE8Sz7Mtw/JFopNJB G0YuY8e6MaDNEVpjD3z0cCd3eyLazToEzeh2eFjYYtvDLyRYgv1TO6H0RBcgttmwCbLb 5Ow4mkHgm+UQ3ewnVRz9r5WDquGWUmTyiYJ4JVe4CGF/dT1v8Il9nuKHHvgmVlOVU22c Yi/UDcylFVNbjNPRpuRVqB0clK5xFVJVkTs9KDBnRcPFqIalqV+IZPailio2h7U4coxc EFbQ== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id r28si1260066edc.610.2020.05.14.03.37.22; Thu, 14 May 2020 03:37:46 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726191AbgENKfy (ORCPT + 99 others); Thu, 14 May 2020 06:35:54 -0400 Received: from outpost1.zedat.fu-berlin.de ([130.133.4.66]:37781 "EHLO outpost1.zedat.fu-berlin.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725925AbgENKfx (ORCPT ); Thu, 14 May 2020 06:35:53 -0400 Received: from inpost2.zedat.fu-berlin.de ([130.133.4.69]) by outpost.zedat.fu-berlin.de (Exim 4.93) with esmtps (TLS1.2) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (envelope-from ) id 1jZBDS-003iht-MI; Thu, 14 May 2020 12:35:50 +0200 Received: from p5b13a426.dip0.t-ipconnect.de ([91.19.164.38] helo=[192.168.178.139]) by inpost2.zedat.fu-berlin.de (Exim 4.93) with esmtpsa (TLS1.2) tls TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 (envelope-from ) id 1jZBDS-002SIz-91; Thu, 14 May 2020 12:35:50 +0200 Subject: Re: [PATCH] ia64: enable HAVE_COPY_THREAD_TLS, switch to kernel_clone_args To: Christian Brauner Cc: "Luck, Tony" , "Yu, Fenghua" , "linux-ia64@vger.kernel.org" , Al Viro , Arnd Bergmann , Thomas Gleixner , Ingo Molnar , Sebastian Andrzej Siewior , "Peter Zijlstra (Intel)" , Qais Yousef , "linux-kernel@vger.kernel.org" References: <3908561D78D1C84285E8C5FCA982C28F7F6266E0@ORSMSX115.amr.corp.intel.com> <79e58d9b-5a39-390c-2f0c-0d87b63442b4@physik.fu-berlin.de> <20200514074606.vkc35syhdep23rzh@wittgenstein> <6b298416-1e64-eee7-0bb4-3b1f7f67adc6@physik.fu-berlin.de> <20200514100459.pt7dxq2faghdds2c@wittgenstein> <2e22b0d2-b9ce-420d-48a0-0d9134108a5c@physik.fu-berlin.de> <20200514101540.25hvle74w63t66fs@wittgenstein> <20200514101914.fu7xhgaxtb5fy2ky@wittgenstein> <4aad9ad5-b0e9-12b0-0ad2-ac23fceae87b@physik.fu-berlin.de> <20200514103259.tdfjc5ds4igpmoxj@wittgenstein> From: John Paul Adrian Glaubitz Autocrypt: addr=glaubitz@physik.fu-berlin.de; keydata= mQINBE3JE9wBEADMrYGNfz3oz6XLw9XcWvuIxIlPWoTyw9BxTicfGAv0d87wngs9U+d52t/R EggPePf34gb7/k8FBY1IgyxnZEB5NxUb1WtW0M3GUxpPx6gBZqOm7SK1ZW3oSORw+T7Aezl3 Zq4Nr4Nptqx7fnLpXfRDs5iYO/GX8WuL8fkGS/gIXtxKewd0LkTlb6jq9KKq8qn8/BN5YEKq JlM7jsENyA5PIe2npN3MjEg6p+qFrmrzJRuFjjdf5vvGfzskrXCAKGlNjMMA4TgZvugOFmBI /iSyV0IOaj0uKhes0ZNX+lQFrOB4j6I5fTBy7L/T3W/pCWo3wVkknNYa8TDYT73oIZ7Aimv+ k7OzRfnxsSOAZT8Re1Yt8mvzr6FHVFjr/VdyTtO5JgQZ6LEmvo4Ro+2ByBmCHORCQ0NJhD1U 3avjGfvfslG999W0WEZLTeaGkBAN1yG/1bgGAytQQkD9NsVXqBy7S3LVv9bB844ysW5Aj1nv tgIz14E2WL8rbpfjJMXi7B5ha6Lxf3rFOgxpr6ZoEn+bGG4hmrO+/ReA4SerfMqwSTnjZsZv xMJsx2B9c8DaZE8GsA4I6lsihbJmXhw8i7Cta8Dx418wtEbXhL6m/UEk60O7QD1VBgGqDMnJ DFSlvKa9D+tZde/kHSNmQmLLzxtDbNgBgmR0jUlmxirijnm8bwARAQABtFRKb2huIFBhdWwg QWRyaWFuIEdsYXViaXR6IChGcmVpZSBVbml2ZXJzaXRhZXQgQmVybGluKSA8Z2xhdWJpdHpA cGh5c2lrLmZ1LWJlcmxpbi5kZT6JAlEEEwEIADsCGwMFCwkIBwMFFQoJCAsFFgIDAQACHgEC F4AWIQRi/4p1hOApVpVGAAZ0Jjs39bX5EwUCWhQoUgIZAQAKCRB0Jjs39bX5Ez/ID/98r9c4 WUSgOHVPSMVcOVziMOi+zPWfF1OhOXW+atpTM4LSSp66196xOlDFHOdNNmO6kxckXAX9ptvp Bc0mRxa7OrC168fKzqR7P75eTsJnVaOu+uI/vvgsbUIosYdkkekCxDAbYCUwmzNotIspnFbx iSPMNrpw7Ud/yQkS9TDYeXnrZDhBp7p5+naWCD/yMvh7yVCA4Ea8+xDVoX+kjv6EHJrwVupO pMa39cGs2rKYZbWTazcflKH+bXG3FHBrwh9XRjA6A1CTeC/zTVNgGF6wvw/qT2x9tS7WeeZ1 jvBCJub2cb07qIfuvxXiGcYGr+W4z9GuLCiWsMmoff/Gmo1aeMZDRYKLAZLGlEr6zkYh1Abt iz0YLqIYVbZAnf8dCjmYhuwPq77IeqSjqUqI2Cb0oOOlwRKVWDlqAeo0Bh8DrvZvBAojJf4H nQZ/pSz0yaRed/0FAmkVfV+1yR6BtRXhkRF6NCmguSITC96IzE26C6n5DBb43MR7Ga/mof4M UufnKADNG4qz57CBwENHyx6ftWJeWZNdRZq10o0NXuCJZf/iulHCWS/hFOM5ygfONq1Vsj2Z DSWvVpSLj+Ufd2QnmsnrCr1ZGcl72OC24AmqFWJY+IyReHWpuABEVZVeVDQooJ0K4yqucmrF R7HyH7oZGgR0CgYHCI+9yhrXHrQpyLkCDQRNyRQuARAArCaWhVbMXw9iHmMH0BN/TuSmeKtV h/+QOT5C5Uw+XJ3A+OHr9rB+SpndJEcDIhv70gLrpEuloXhZI9VYazfTv6lrkCZObXq/NgDQ Mnu+9E/E/PE9irqnZZOMWpurQRh41MibRii0iSr+AH2IhRL6CN2egZID6f93Cdu7US53ZqIx bXoguqGB2CK115bcnsswMW9YiVegFA5J9dAMsCI9/6M8li+CSYICi9gq0LdpODdsVfaxmo4+ xYFdXoDN33b8Yyzhbh/I5gtVIRpfL+Yjfk8xAsfz78wzifSDckSB3NGPAXvs6HxKc50bvf+P 6t2tLpmB/KrpozlZazq16iktY97QulyEY9JWCiEgDs6EKb4wTx+lUe4yS9eo95cBV+YlL+BX kJSAMyxgSOy35BeBaeUSIrYqfHpbNn6/nidwDhg/nxyJs8mPlBvHiCLwotje2AhtYndDEhGQ KEtEaMQEhDi9MsCGHe+00QegCv3FRveHwzGphY1YlRItLjF4TcFz1SsHn30e7uLTDe/pUMZU Kd1xU73WWr0NlWG1g49ITyaBpwdv/cs/RQ5laYYeivnag81TcPCDbTm7zXiwo53aLQOZj4u3 gSQvAUhgYTQUstMdkOMOn0PSIpyVAq3zrEFEYf7bNSTcdGrgwCuCBe4DgI3Vu4LOoAeI428t 2dj1K1EAEQEAAYkCHwQYAQgACQUCTckULgIbDAAKCRB0Jjs39bX5E683EAC1huywL4BlxTj7 FTm7FiKd5/KEH5/oaxLQN26mn8yRkP/L3xwiqXxdd0hnrPyUe8mUOrSg7KLMul+pSRxPgaHA xt1I1hQZ30cJ1j/SkDIV2ImSf75Yzz5v72fPiYLq9+H3qKZwrgof9yM/s0bfsSX/GWyFatvo Koo+TgrE0rmtQw82vv7/cbDAYceQm1bRB8Nr8agPyGXYcjohAj7NJcra4hnu1wUw3yD05p/B Rntv7NvPWV3Oo7DKCWIS4RpEd6I6E+tN3GCePqROeK1nDv+FJWLkyvwLigfNaCLro6/292YK VMdBISNYN4s6IGPrXGGvoDwo9RVo6kBhlYEfg6+2eaPCwq40IVfKbYNwLLB2MR2ssL4yzmDo OR3rQFDPj+QcDvH4/0gCQ+qRpYATIegS8zU5xQ8nPL8lba9YNejaOMzw8RB80g+2oPOJ3Wzx oMsmw8taUmd9TIw/bJ2VO1HniiJUGUXCqoeg8homvBOQ0PmWAWIwjC6nf6CIuIM4Egu2I5Kl jEF9ImTPcYZpw5vhdyPwBdXW2lSjV3EAqknWujRgcsm84nycuJnImwJptR481EWmtuH6ysj5 YhRVGbQPfdsjVUQfZdRdkEv4CZ90pdscBi1nRqcqANtzC+WQFwekDzk2lGqNRDg56s+q0KtY scOkTAZQGVpD/8AaLH4v1w== Message-ID: <666503de-d8f9-b19c-6924-ab80d36cd446@physik.fu-berlin.de> Date: Thu, 14 May 2020 12:35:49 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.8.0 MIME-Version: 1.0 In-Reply-To: <20200514103259.tdfjc5ds4igpmoxj@wittgenstein> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit X-Original-Sender: glaubitz@physik.fu-berlin.de X-Originating-IP: 91.19.164.38 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 5/14/20 12:32 PM, Christian Brauner wrote: > Do you have a very minimalistic ia64 userspace preferably without systemd where > you could simply test. That should give us an idea whether things work: > > #define _GNU_SOURCE > #include > #include > #include > #include > #include > #include > #include > #include > > #define STACK_SIZE (8 * 1024 * 1024) /* standard stack size for threads in glibc */ > > int main(int argc, char *argv[]) > { > char *stack; > pid_t pid; > > stack = mmap(NULL, STACK_SIZE, PROT_READ | PROT_WRITE, > MAP_PRIVATE | MAP_ANONYMOUS | MAP_STACK, -1, 0); > if (stack == MAP_FAILED) > exit(EXIT_FAILURE); > > /* > * Note that legacy clone() has different argument ordering on > * different architectures so this won't work everywhere. > */ > pid = syscall(189 /* __NR_clone2 */, SIGCHLD, stack, STACK_SIZE, NULL, NULL); > if (pid < 0) > exit(EXIT_FAILURE); > if (pid == 0) > exit(EXIT_SUCCESS); > if (wait(NULL) != pid) > exit(EXIT_FAILURE); > > exit(EXIT_SUCCESS); > } root@titanium:~# gcc systemd_test.c -o systemd_test root@titanium:~# ./systemd_test root@titanium:~# echo $? 1 root@titanium:~# I can also give you access to this machine. Adrian -- .''`. John Paul Adrian Glaubitz : :' : Debian Developer - glaubitz@debian.org `. `' Freie Universitaet Berlin - glaubitz@physik.fu-berlin.de `- GPG: 62FF 8A75 84E0 2956 9546 0006 7426 3B37 F5B5 F913