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=-0.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, 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 C2EC8C64E8A for ; Mon, 30 Nov 2020 15:03:44 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 67493206D8 for ; Mon, 30 Nov 2020 15:03:44 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=gmx.net header.i=@gmx.net header.b="HiZwWezb" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727833AbgK3PD2 (ORCPT ); Mon, 30 Nov 2020 10:03:28 -0500 Received: from mout.gmx.net ([212.227.15.19]:47151 "EHLO mout.gmx.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725899AbgK3PD1 (ORCPT ); Mon, 30 Nov 2020 10:03:27 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gmx.net; s=badeba3b8450; t=1606748473; bh=h5Xcjdxty0RDqjnuXY7w+TO7/Igyokq8MDI/tlnDKOc=; h=X-UI-Sender-Class:Subject:From:To:Cc:Date:In-Reply-To:References; b=HiZwWezbyPPtkIZjYVP26/gfM/XGZROwXdtVKmrz7Lw+fbLYBSbYm+hhqWJB5Tz0l dCcKkg6aPB0uI5/BIDOQnQHjpFTNb6FSYbGrRqmIgRg1oU/zpsLl5VordqAwV/3rxQ Pu5EM7+Su34g0UAP/uXELCKwhO/27LDhA9vG8AlI= X-UI-Sender-Class: 01bb95c1-4bf8-414a-932a-4f6e2808ef9c Received: from homer.fritz.box ([185.221.151.20]) by mail.gmx.com (mrgmx004 [212.227.17.190]) with ESMTPSA (Nemesis) id 1MsHns-1jvuD52S1i-00tmua; Mon, 30 Nov 2020 16:01:13 +0100 Message-ID: <05121515e73891ceb9e5caf64b6111fc8ff43fab.camel@gmx.de> Subject: Re: scheduling while atomic in z3fold From: Mike Galbraith To: Sebastian Andrzej Siewior Cc: Oleksandr Natalenko , linux-kernel@vger.kernel.org, linux-mm@kvack.org, Andrew Morton , Steven Rostedt , Thomas Gleixner , linux-rt-users@vger.kernel.org Date: Mon, 30 Nov 2020 16:01:11 +0100 In-Reply-To: <20201130145229.mhbkrfuvyctniaxi@linutronix.de> References: <20201128140924.iyqr2h52z2olt6zb@spock.localdomain> <20201128142723.zik6d5skvt3uwu5f@spock.localdomain> <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> Content-Type: text/plain; charset="UTF-8" User-Agent: Evolution 3.34.4 MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Provags-ID: V03:K1:doTPtowmIutSdqzABFuzY91S4epubBxrrlFCeAWfhn4H+RQLEeq ni7mvzJjlOBu2nOVcXAgvsyU6P5UW0zK71SVdqHwfPIsq8/vCpNg5OM5sf1V+/Xellw4XiS KDDUVhFgGp4TArY5yOyFpmFdmqsdXa36qwTmU7x7agBvYUR9SLUxhiskNGOGVZZeOwP9OrU B/fCVgLKwaJAdd5qLlt/w== X-UI-Out-Filterresults: notjunk:1;V03:K0:XH+FG8BWMj0=:wrmCJFtG4HyHn+yz0TfDBd vGP8Hh22nk+RQEItNXAVxa+eleC861gGcXneGA31OQt7r+ePL6ysivi9CvW28Ts7ZmDpc1A9W V4mQ4Lc6X03zLKVRQikPCfWFQWVbhOXeXZ0yU62bZNtaerK1IZIXnGEKFQMtw9JtU3B2e7gcA RL7mKmCHr0oVaj+R4YEpqGkTFy8B8U9lCIDWSOcWOZQ3nFKMARUMsh8Z0+yf+j8nDBvZ8/huG FEeo0DlO7y1PGwe7VXJX49F1TaHXCLBeiy9yDuVBFRwvJOCGl3MiBFiG5Fx8Wg4jSDxUdcWMS 1unLEAaLvg8BmCrB7ycsWcuQLhF05eZ3biSmA9ptVrEKOLaaLttjyaIYEb6xVvo7p4yWxxn1p GzafOQxIQ/LGGDFR6NhR7UBBR/VA0rGTu6Bb8luAB28qZa+FQO/p1apfwWn0qqb/d88kND9W3 zYHZiburOTkdUkpWqQBAwaoFlKdA09JDQsk/nLBPyH34QIDIWkx7F3dOYCcO31OF/gOD+nfh8 Yr57x8spw/u2CLAwackp3u/PAXyynWUlXLD0cF2SbYqbXTLQH44wvnnLHCFyeIH4T5ko3CuVo 9m9sFb+m5LqDzJ8CG3veI4D19s8S4jYBG9Zt7xtdz4L5CPJbvAj1F99JFoSHEeIF06PAXcCD4 U+ZxEShJUdsDfaIG47SsR0kt3np6tS9YwAVTx1wDv6q9u9QCrAt74px6EYmTPE7LSkREz9Ujm Mkd6B3rx2rqMLLwSAweKqtTV0IJwO0o3fqE7iVDslgkwBmzQZ1SYbXrW/T0OPzNP/JwkKR5qJ YjEF+m9+K7fRG1MHs2+H472uL9CTtRi3BYmbWX6KUqdWD3wTLXhaq1JBsZ9NuWE0y+jPLhEwW /ZGvx/VPkq3r08Ed9h/g== Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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. 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. -Mike