From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-lb0-f199.google.com (mail-lb0-f199.google.com [209.85.217.199]) by kanga.kvack.org (Postfix) with ESMTP id A99B36B007E for ; Mon, 16 May 2016 09:54:48 -0400 (EDT) Received: by mail-lb0-f199.google.com with SMTP id tb5so59946337lbb.3 for ; Mon, 16 May 2016 06:54:48 -0700 (PDT) Received: from mail-wm0-x244.google.com (mail-wm0-x244.google.com. [2a00:1450:400c:c09::244]) by mx.google.com with ESMTPS id 193si20229664wmh.122.2016.05.16.06.54.47 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 16 May 2016 06:54:47 -0700 (PDT) Received: by mail-wm0-x244.google.com with SMTP id w143so18245302wmw.3 for ; Mon, 16 May 2016 06:54:47 -0700 (PDT) Date: Mon, 16 May 2016 15:54:42 +0200 From: Ingo Molnar Subject: Re: [PATCHv8 resend 2/2] selftest/x86: add mremap vdso test Message-ID: <20160516135442.GA14452@gmail.com> References: <1462886951-23376-1-git-send-email-dsafonov@virtuozzo.com> <1462886951-23376-2-git-send-email-dsafonov@virtuozzo.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1462886951-23376-2-git-send-email-dsafonov@virtuozzo.com> Sender: owner-linux-mm@kvack.org List-ID: To: Dmitry Safonov Cc: linux-kernel@vger.kernel.org, mingo@redhat.com, luto@amacapital.net, tglx@linutronix.de, hpa@zytor.com, x86@kernel.org, akpm@linux-foundation.org, linux-mm@kvack.org, 0x7f454c46@gmail.com, Shuah Khan , linux-kselftest@vger.kernel.org * Dmitry Safonov wrote: > Should print on success: > [root@localhost ~]# ./test_mremap_vdso_32 > AT_SYSINFO_EHDR is 0xf773f000 > [NOTE] Moving vDSO: [f773f000, f7740000] -> [a000000, a001000] > [OK] > Or segfault if landing was bad (before patches): > [root@localhost ~]# ./test_mremap_vdso_32 > AT_SYSINFO_EHDR is 0xf774f000 > [NOTE] Moving vDSO: [f774f000, f7750000] -> [a000000, a001000] > Segmentation fault (core dumped) Can the segfault be caught and recovered from, to print a proper failure message? Thanks, Ingo -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org