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 8706AC7EE22 for ; Fri, 5 May 2023 16:24:29 +0000 (UTC) Received: from picard.linux.it (localhost [IPv6:::1]) by picard.linux.it (Postfix) with ESMTP id 53A6D3CB6C3 for ; Fri, 5 May 2023 18:24:27 +0200 (CEST) Received: from in-7.smtp.seeweb.it (in-7.smtp.seeweb.it [IPv6:2001:4b78:1:20::7]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-384)) (No client certificate requested) by picard.linux.it (Postfix) with ESMTPS id 7335C3CB678 for ; Fri, 5 May 2023 18:24:14 +0200 (CEST) Received: from smtp-out1.suse.de (smtp-out1.suse.de [IPv6:2001:67c:2178:6::1c]) (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-7.smtp.seeweb.it (Postfix) with ESMTPS id 049CF20022C for ; Fri, 5 May 2023 18:24:13 +0200 (CEST) Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by smtp-out1.suse.de (Postfix) with ESMTPS id B4BA7218DF; Fri, 5 May 2023 16:24:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.cz; s=susede2_rsa; t=1683303852; h=from:from:reply-to:reply-to:date:date:message-id:message-id:to:to: cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=AECnCwWKPZT82MmKfQ4Wt/adVq1qKGrrNHSHWoCow2E=; b=oY88TRWAaUOcrx17Jsvu1LPbBd24oGcWjzeEfQBaNykZWcLTvrwsWvnxUb27QSHxe+pVEh QCQH30W9UJ2Xq/vqxnqHWfRFlRXyVULsGRYx0eTYAcGahXlpCEfq0RzSRGtRUJKT/wWBbr bf78N6rDnAqt/zfcOU3vVKQdAxYvvn0= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.cz; s=susede2_ed25519; t=1683303852; h=from:from:reply-to:reply-to:date:date:message-id:message-id:to:to: cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=AECnCwWKPZT82MmKfQ4Wt/adVq1qKGrrNHSHWoCow2E=; b=7Ym0X80TlMZfvvHLxrK8CIv97rMcGiWgNfhJhL/oYYs2QIxRZZN4HCGVeU/BppgQ8cXJyx TM4GMaeh0YeS9RCQ== Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by imap2.suse-dmz.suse.de (Postfix) with ESMTPS id 76F5113488; Fri, 5 May 2023 16:24:12 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap2.suse-dmz.suse.de with ESMTPSA id royxF6wtVWTRKAAAMHmgww (envelope-from ); Fri, 05 May 2023 16:24:12 +0000 Date: Fri, 5 May 2023 18:24:10 +0200 From: Petr Vorel To: Martin Doucha Message-ID: <20230505162410.GC24118@pevik> References: <20230505145626.2537-1-mdoucha@suse.cz> <20230505145626.2537-2-mdoucha@suse.cz> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20230505145626.2537-2-mdoucha@suse.cz> X-Virus-Scanned: clamav-milter 0.102.4 at in-7.smtp.seeweb.it X-Virus-Status: Clean Subject: Re: [LTP] [PATCH 2/3] ipc/semget05: Set dynamic run time 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: , Reply-To: Petr Vorel 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 Martin, > The semget() syscall can be slow on some archs so too high default > system limit may cause timeouts. Set dynamic run time based on > semaphore limit. > I've originally tried to create an IPC namespace and set low custom limit > but IPC namespaces don't allow unprivileged users to reconfigure them > like the network namespaces do. This is the second best solution. IMHO good enough. Reviewed-by: Petr Vorel Kind regards, Petr -- Mailing list info: https://lists.linux.it/listinfo/ltp