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=-5.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS 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 7E8D6C63777 for ; Mon, 30 Nov 2020 16:04:21 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id C5F462076E for ; Mon, 30 Nov 2020 16:04:20 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="FSVymrrD"; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="xnIkAsom" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org C5F462076E Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linutronix.de Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id B284D8D0007; Mon, 30 Nov 2020 11:04:19 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id AB09D8D0002; Mon, 30 Nov 2020 11:04:19 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 9771A8D0007; Mon, 30 Nov 2020 11:04:19 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0118.hostedemail.com [216.40.44.118]) by kanga.kvack.org (Postfix) with ESMTP id 7C4268D0002 for ; Mon, 30 Nov 2020 11:04:19 -0500 (EST) Received: from smtpin14.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay03.hostedemail.com (Postfix) with ESMTP id 34EFC8249980 for ; Mon, 30 Nov 2020 16:04:19 +0000 (UTC) X-FDA: 77541556638.14.smile84_550c37f273a3 Received: from filter.hostedemail.com (10.5.16.251.rfc1918.com [10.5.16.251]) by smtpin14.hostedemail.com (Postfix) with ESMTP id 8C111180286EF for ; Mon, 30 Nov 2020 16:03:31 +0000 (UTC) X-HE-Tag: smile84_550c37f273a3 X-Filterd-Recvd-Size: 3302 Received: from galois.linutronix.de (Galois.linutronix.de [193.142.43.55]) by imf43.hostedemail.com (Postfix) with ESMTP for ; Mon, 30 Nov 2020 16:03:30 +0000 (UTC) Date: Mon, 30 Nov 2020 17:03:27 +0100 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1606752208; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=Ejan0ZhOEyu24ceXv5BOSGhFsREBbTH/zgUcOvbllg4=; b=FSVymrrDth2W0Dp+JPGfOwSJA9g4kbVoicUl59VyXLLMIvLS0eRBDlABMCoKDTsOM08HFe OFy4dsAqyBy9mHWwkSBLrL1Bzs/HHhQ8M2eDiTdRdhb15kcqzO3rjq6IehHS0mL/MrZSa2 oQxRTpuV8vHLQUyAdRfswC5ExlgCwmRYy322dcO/rMO5Iyg3sjJ7ZwzoAdMyqaJm7IkxFX IoX2ThEj3aOLeU9F8Qeob4hJQDdj1Qj76QsCIqxs4flXV+u0d974lfaHN4hl6o8GqZR6pZ FmrVjx69snzK2PQQa+BkTijNAMGhztuDEx/CIDgcKBbeG7rj6HO4SC9p3i4hTw== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1606752208; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=Ejan0ZhOEyu24ceXv5BOSGhFsREBbTH/zgUcOvbllg4=; b=xnIkAsom+XVLu1yiw07BqQZp4yZKX5MEpF9EqzS/lUBexaGmk+YvJIGbFF7QwZNevTEOfI kgv8EdBiamEVYYCw== From: Sebastian Andrzej Siewior To: Mike Galbraith Cc: Oleksandr Natalenko , linux-kernel@vger.kernel.org, linux-mm@kvack.org, Andrew Morton , Steven Rostedt , Thomas Gleixner , linux-rt-users@vger.kernel.org Subject: Re: scheduling while atomic in z3fold Message-ID: <20201130160327.ov32m4rapk4h432a@linutronix.de> References: <15171df044b167351e7f6a688aabd71bade9ae2a.camel@gmx.de> <79ee43026efe5aaa560953ea8fe29a826ac4e855.camel@gmx.de> <20201129112922.db53kmtpu76xxukj@spock.localdomain> <90c4857c53b657147bfb71a281ece9839b0373c2.camel@gmx.de> <20201130132014.mlvxeyiub3fpwyw7@linutronix.de> <856b5cc2a3d4eb673743b52956bf1e60dcdf87a1.camel@gmx.de> <20201130145229.mhbkrfuvyctniaxi@linutronix.de> <05121515e73891ceb9e5caf64b6111fc8ff43fab.camel@gmx.de> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable In-Reply-To: <05121515e73891ceb9e5caf64b6111fc8ff43fab.camel@gmx.de> X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On 2020-11-30 16:01:11 [+0100], Mike Galbraith wrote: > On Mon, 2020-11-30 at 15:52 +0100, Sebastian Andrzej Siewior wrote: > > How do you test this? I triggered a few oom-killer and I have here git > > gc running for a few hours now=E2=80=A6 Everything is fine. >=20 > In an LTP install, ./runltp -f mm. Shortly after box starts swapping > insanely, it explodes quite reliably here with either z3fold or > zsmalloc.. but not with zbud. This just passed. It however killed my git-gc task which wasn't done. Let me try tomorrow with your config. > -Mike Sebastian