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=-1.1 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,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 E9807C00307 for ; Mon, 9 Sep 2019 07:17:48 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id AB80721920 for ; Mon, 9 Sep 2019 07:17:47 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="p2Q/UjD0" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org AB80721920 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 7E3276B0007; Mon, 9 Sep 2019 03:17:47 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 793506B0008; Mon, 9 Sep 2019 03:17:47 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 65AB86B000A; Mon, 9 Sep 2019 03:17:47 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0082.hostedemail.com [216.40.44.82]) by kanga.kvack.org (Postfix) with ESMTP id 3F85E6B0007 for ; Mon, 9 Sep 2019 03:17:47 -0400 (EDT) Received: from smtpin03.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay01.hostedemail.com (Postfix) with SMTP id D0374180AD7C3 for ; Mon, 9 Sep 2019 07:17:46 +0000 (UTC) X-FDA: 75914527332.03.touch91_43e015a9f343d X-HE-Tag: touch91_43e015a9f343d X-Filterd-Recvd-Size: 4816 Received: from mail-lj1-f181.google.com (mail-lj1-f181.google.com [209.85.208.181]) by imf30.hostedemail.com (Postfix) with ESMTP for ; Mon, 9 Sep 2019 07:17:46 +0000 (UTC) Received: by mail-lj1-f181.google.com with SMTP id a4so11635484ljk.8 for ; Mon, 09 Sep 2019 00:17:46 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc:content-transfer-encoding; bh=6WWi6PnkCvJIgohYd6MjFYKiE1xulC2u3LHy1axU0uA=; b=p2Q/UjD0V81KtdynBIW9ji2HvZN1FvdFw7M5Eco6yvyiK82LeAnjTGePpEzYOvEco/ fitPaONnri/GUCGzVD7tp/7hBYc1wOFvCYpuA7Om8X3oC9/xxnYiwQZg+LqD6YSpjJaK 7Q8n7KVxZwG1sgHqg90zLPw+tqjwLPkLQI/nGOIyyeSpZlSyyzmU3+Wkbfu0omwkqmZW M2HxiNCXDRnlO5Ymk8sm9IjZ5HxTIkhnqNTmnzptanTHERdutpX5yNAMXKQ00xv1Htqf XLPCWyS0/VXl1JbhX2w9+iHfiYqUmaivoTFNMV92Nm0LDZELFst6ZUm7O9mXwhAc3pJP YSgQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc:content-transfer-encoding; bh=6WWi6PnkCvJIgohYd6MjFYKiE1xulC2u3LHy1axU0uA=; b=hn7KMIRVyNdauasdK9UCSnNVoo+5oKz5YOJOtUjeurndokzgaHRu2DZvEFUgKIoYWQ UcxOwLYF1h+AAlmsJyxh+vBtsceECiiI/xmY282812che9KiSlsUEgDZdxGb3/o6jmuW mlrYuNrmSw0miRrOph/QD726GkNjikIT8ERsgw3T+55Ryyri5hCqPh8YHd//838lFCM+ PTLmngbxMFcMf6cA+axvTQGdoJkYl3cLmeaXckZ343gq8TFRDVtOwf2GlIUtcwL9/Xgp HNjWu3WM50Uo/aTKaAoAlcFCn8TOQHUNrASNKtFG00wsJQM4iHQ5qbrOyLu8VCu/gvVw a/9A== X-Gm-Message-State: APjAAAWCwsMWVEKENP3duKWJEKFL10Vo5FMHeoZwDl7Dn+l/NxV+CghX Ab5IFMrfZ46sRLHkcqipOHu8Oh5e5lxoiLQqNbQ= X-Google-Smtp-Source: APXvYqys8d1JGVfzClrmA4k74GNFOt74+uC21NguH0zWmSd4mmJxYMeNVSZuWEovbUUAevhoKUorz+C1tXbTzE3GaSc= X-Received: by 2002:a2e:9792:: with SMTP id y18mr1656166lji.168.1568013464829; Mon, 09 Sep 2019 00:17:44 -0700 (PDT) MIME-Version: 1.0 References: <4a56ed8a08a3226500739f0e6961bf8cdcc6d875.camel@dallalba.com.ar> <3c906446-d2fd-706b-312f-c08dfaf8f67a@suse.cz> <501f9d274cbe1bcf1056bfd06389bd9d4e00de2a.camel@dallalba.com.ar> In-Reply-To: <501f9d274cbe1bcf1056bfd06389bd9d4e00de2a.camel@dallalba.com.ar> From: Vitaly Wool Date: Mon, 9 Sep 2019 09:17:33 +0200 Message-ID: Subject: Re: CRASH: General protection fault in z3fold To: =?UTF-8?Q?Agust=C3=ADn_Dall=CA=BCAlba?= Cc: Vlastimil Babka , Seth Jennings , Dan Streetman , Linux-MM , Henry Burns Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable 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 Mon, Sep 9, 2019 at 2:14 AM Agust=C3=ADn Dall=CA=BCAlba wrote: > > Hello, > > > Would you care to test with > > https://bugzilla.kernel.org/attachment.cgi?id=3D284883 ? That one > > should > > fix the problem you're facing. > > Thank you, my machine doesn't crash when stressed anymore. :) That's good to hear :) I hope the fix gets into 5.3. > However trace 2 (__zswap_pool_release blocked for more than xxxx > seconds) still happens. That one is pretty new and seems to have been caused by d776aaa9895eb6eb770908e899cb7f5bd5025b3c ("mm/z3fold.c: fix race between migration and destruction"). I'm looking into this now and CC'ing Henry just in case. ~Vitaly > > > > =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D > > > > TRACE 2: z3fold_zpool_destroy blocked > > > > =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D > > > > > > > > INFO: task kworker/2:3:335 blocked for more than 122 seconds. > > > > Not tainted 5.3.0-rc7-1-ARCH #1 > > > > "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this me= ssage. > > > > kworker/2:3 D 0 335 2 0x80004080 > > > > Workqueue: events __zswap_pool_release > > > > Call Trace: > > > > ? __schedule+0x27f/0x6d0 > > > > schedule+0x43/0xd0 > > > > z3fold_zpool_destroy+0xe9/0x130 > > > > ? wait_woken+0x70/0x70 > > > > zpool_destroy_pool+0x5c/0x90 > > > > __zswap_pool_release+0x6a/0xb0 > > > > process_one_work+0x1d1/0x3a0 > > > > worker_thread+0x4a/0x3d0 > > > > kthread+0xfb/0x130 > > > > ? process_one_work+0x3a0/0x3a0 > > > > ? kthread_park+0x80/0x80 > > > > ret_from_fork+0x35/0x40 > > Kind regards. >