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=-3.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED 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 64D66C433EF for ; Thu, 23 Sep 2021 14:33:04 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id A52966109E for ; Thu, 23 Sep 2021 14:33:03 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org A52966109E Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=suse.cz Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=lists.linux.it Received: from picard.linux.it (localhost [IPv6:::1]) by picard.linux.it (Postfix) with ESMTP id B1B123CAB2F for ; Thu, 23 Sep 2021 16:33:01 +0200 (CEST) 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 RSA-PSS (2048 bits)) (No client certificate requested) by picard.linux.it (Postfix) with ESMTPS id AB31E3C330B for ; Thu, 23 Sep 2021 16:32:51 +0200 (CEST) Received: from smtp-out2.suse.de (smtp-out2.suse.de [195.135.220.29]) (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 CAE8860106F for ; Thu, 23 Sep 2021 16:32:50 +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-out2.suse.de (Postfix) with ESMTPS id EA4301FD85; Thu, 23 Sep 2021 14:32:49 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.cz; s=susede2_rsa; t=1632407569; h=from:from: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=mGsRdb1I39kcdiEauBXZuCyxC+kK75g34b6QSVlJAu4=; b=0gYwHqtnDndadD2e7L+L9qotEEf9EozO/pSu0iXBeG688PFC7tKvOHup6fRVpuyWlw43dj qwf3EW4PMHi4xxOLwsRGqRcX1Npa+gmB3x215LMkskxzEblrI6bY3koageEf4wPbNNi4NU Qc2RDJtdz/w2QeL07J+UVjBoVzp50/U= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.cz; s=susede2_ed25519; t=1632407569; h=from:from: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=mGsRdb1I39kcdiEauBXZuCyxC+kK75g34b6QSVlJAu4=; b=G/OXe3+Kj3WrMFoaB+PsQNxT5gmdclOMTFC6LfC5fKCJUAKoiOpris7cPjmOvgmTv4AO5/ sQ0uxjRVAMhEaOCw== 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 CE38813E76; Thu, 23 Sep 2021 14:32:49 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap2.suse-dmz.suse.de with ESMTPSA id ek/QMRGQTGFIcQAAMHmgww (envelope-from ); Thu, 23 Sep 2021 14:32:49 +0000 Date: Thu, 23 Sep 2021 16:33:20 +0200 From: Cyril Hrubis To: Ralph Siemsen Message-ID: References: <20210817104625.2559362-1-liwang@redhat.com> <20210921203349.GA2014441@maple.netwinder.org> <20210922165218.GA3081072@maple.netwinder.org> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20210922165218.GA3081072@maple.netwinder.org> X-Virus-Scanned: clamav-milter 0.102.4 at in-5.smtp.seeweb.it X-Virus-Status: Clean Subject: Re: [LTP] [RFC PATCH] fallocate05: increase the fallocate and defallocate size 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 List 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! FYI I've tried to run syscalls on a VM with 256MB RAM just to see what explodes and it looks like futex_cmp_requeue01 fails as well because we don't have enough memory to fork 1000 processes. I guess that we really need an API for at least rough scaling for the number of processes we can run based on free memory. With that we could finally fix the msgstress testcases as well. Also it seems that in my case the tmpfs returns ENOSPC correctly when the machine free memory gets low enough regardless of the limit set at the mount time, and that's 4.19.0-16-amd64. So I guess that there may be something wrong in the kernel you are testing after all. -- Cyril Hrubis chrubis@suse.cz -- Mailing list info: https://lists.linux.it/listinfo/ltp