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 Received: from picard.linux.it (picard.linux.it [213.254.12.146]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 1DFFBEE20A8 for ; Fri, 6 Feb 2026 14:48:03 +0000 (UTC) Received: from picard.linux.it (localhost [IPv6:::1]) by picard.linux.it (Postfix) with ESMTP id 8FAE83CC929 for ; Fri, 6 Feb 2026 15:48:01 +0100 (CET) Received: from in-5.smtp.seeweb.it (in-5.smtp.seeweb.it [217.194.8.5]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (secp384r1)) (No client certificate requested) by picard.linux.it (Postfix) with ESMTPS id B7AC63CC816 for ; Fri, 6 Feb 2026 15:47:43 +0100 (CET) Received: from smtp-out1.suse.de (smtp-out1.suse.de [IPv6:2a07:de40:b251:101:10:150:64:1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by in-5.smtp.seeweb.it (Postfix) with ESMTPS id 1DE27600F2B for ; Fri, 6 Feb 2026 15:47:42 +0100 (CET) Received: from imap1.dmz-prg2.suse.org (imap1.dmz-prg2.suse.org [IPv6:2a07:de40:b281:104:10:150:64:97]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by smtp-out1.suse.de (Postfix) with ESMTPS id 0E3503E6D4; Fri, 6 Feb 2026 14:47:42 +0000 (UTC) Authentication-Results: smtp-out1.suse.de; none Received: from imap1.dmz-prg2.suse.org (localhost [127.0.0.1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by imap1.dmz-prg2.suse.org (Postfix) with ESMTPS id E9CFD3EA63; Fri, 6 Feb 2026 14:47:41 +0000 (UTC) Received: from dovecot-director2.suse.de ([2a07:de40:b281:106:10:150:64:167]) by imap1.dmz-prg2.suse.org with ESMTPSA id Zv4oOA3/hWmEAgAAD6G6ig (envelope-from ); Fri, 06 Feb 2026 14:47:41 +0000 Date: Fri, 6 Feb 2026 15:47:42 +0100 From: Cyril Hrubis To: Ricardo Branco Message-ID: References: <20260205205609.147851-1-rbranco@suse.de> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20260205205609.147851-1-rbranco@suse.de> X-Rspamd-Pre-Result: action=no action; module=replies; Message is reply to one we originated X-Spamd-Result: default: False [-4.00 / 50.00]; REPLY(-4.00)[] X-Rspamd-Queue-Id: 0E3503E6D4 X-Rspamd-Pre-Result: action=no action; module=replies; Message is reply to one we originated X-Rspamd-Action: no action X-Rspamd-Server: rspamd2.dmz-prg2.suse.org X-Virus-Scanned: clamav-milter 1.0.9 at in-5.smtp.seeweb.it X-Virus-Status: Clean Subject: Re: [LTP] [PATCH] userfaultfd: Add test using UFFDIO_POISON X-BeenThere: ltp@lists.linux.it X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux Test Project List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: ltp@lists.linux.it Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: ltp-bounces+ltp=archiver.kernel.org@lists.linux.it Sender: "ltp" Hi! > +static void run(void) > +{ > + pthread_t thr; > + struct uffdio_api uffdio_api = {}; > + struct uffdio_register uffdio_register; > + struct sigaction sa = {}; > + volatile char dummy; > + > + sa.sa_handler = sigbus_handler; > + sigemptyset(&sa.sa_mask); > + SAFE_SIGACTION(SIGBUS, &sa, NULL); > + > + set_pages(); > + > + uffd = SAFE_USERFAULTFD(O_CLOEXEC | O_NONBLOCK, false); > + > + uffdio_api.api = UFFD_API; > + uffdio_api.features = UFFD_FEATURE_POISON; > + > + SAFE_IOCTL(uffd, UFFDIO_API, &uffdio_api); > + > + uffdio_register.range.start = (unsigned long) page; > + uffdio_register.range.len = page_size; > + uffdio_register.mode = UFFDIO_REGISTER_MODE_MISSING; > + > + SAFE_IOCTL(uffd, UFFDIO_REGISTER, &uffdio_register); > + > + SAFE_PTHREAD_BARRIER_INIT(&barrier, NULL, 2); Why does this test need barriers and the rest of the tests that looks nearly the same does not? -- Cyril Hrubis chrubis@suse.cz -- Mailing list info: https://lists.linux.it/listinfo/ltp