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 E91FACD5BC8 for ; Mon, 25 May 2026 09:42:45 +0000 (UTC) Received: from picard.linux.it (localhost [IPv6:::1]) by picard.linux.it (Postfix) with ESMTP id 47F753E23E7 for ; Mon, 25 May 2026 11:42:44 +0200 (CEST) Received: from in-4.smtp.seeweb.it (in-4.smtp.seeweb.it [217.194.8.4]) (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 7F34C3C72D9 for ; Mon, 25 May 2026 11:42:27 +0200 (CEST) Received: from smtp-out1.suse.de (smtp-out1.suse.de [195.135.223.130]) (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-4.smtp.seeweb.it (Postfix) with ESMTPS id 9D884100076A for ; Mon, 25 May 2026 11:42:26 +0200 (CEST) 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 0EAD96B076; Mon, 25 May 2026 09:42:26 +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 B8C2059B99; Mon, 25 May 2026 09:42:25 +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 xs4ZKoEZFGrdGAAAD6G6ig (envelope-from ); Mon, 25 May 2026 09:42:25 +0000 Date: Mon, 25 May 2026 11:42:24 +0200 From: Petr Vorel To: Cyril Hrubis Message-ID: <20260525094224.GA181471@pevik> References: <20260525073921.172426-1-pvorel@suse.cz> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: X-Rspamd-Pre-Result: action=no action; module=replies; Message is reply to one we originated X-Rspamd-Queue-Id: 0EAD96B076 X-Rspamd-Pre-Result: action=no action; module=replies; Message is reply to one we originated X-Rspamd-Action: no action X-Spamd-Result: default: False [-4.00 / 50.00]; REPLY(-4.00)[] X-Rspamd-Server: rspamd2.dmz-prg2.suse.org X-Virus-Scanned: clamav-milter 1.0.9 at in-4.smtp.seeweb.it X-Virus-Status: Clean Subject: Re: [LTP] [PATCH 1/1] min_free_kbytes: TCONF on errno ENOMEM, add break 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! > > On machine with 16 GM RAM and ~6 GB swap fork() fails on ENOMEM. > > Treat that as TCONF. > > While at it, add missing break in case. > This looks suspicious. If we fail with the fork here that probably means > that the memory allocated by the previous iteration wasn't reclaimed > fast enough. Was this on a second or third iteration (we do three > iterations with different overcommit values)? This is on one of my bare metal machines, first iteration: min_free_kbytes.c:91: TINFO: Setting /proc/sys/vm/overcommit_memory to 2 min_free_kbytes.c:95: TINFO: Setting /proc/sys/vm/min_free_kbytes to 67584 min_free_kbytes.c:111: TBROK: fork: ENOMEM (12) tst_test.c:1933: TINFO: Killed the leftover descendant processes Kind regards, Petr -- Mailing list info: https://lists.linux.it/listinfo/ltp