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 kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id D1500C433EF for ; Fri, 11 Mar 2022 22:37:04 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 462F88D0002; Fri, 11 Mar 2022 17:37:04 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 412578D0001; Fri, 11 Mar 2022 17:37:04 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 2D97B8D0002; Fri, 11 Mar 2022 17:37:04 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0065.hostedemail.com [216.40.44.65]) by kanga.kvack.org (Postfix) with ESMTP id 1E0C18D0001 for ; Fri, 11 Mar 2022 17:37:04 -0500 (EST) Received: from smtpin18.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay02.hostedemail.com (Postfix) with ESMTP id BD19395CB0 for ; Fri, 11 Mar 2022 22:37:03 +0000 (UTC) X-FDA: 79233567126.18.EF3FE29 Received: from mail-yw1-f169.google.com (mail-yw1-f169.google.com [209.85.128.169]) by imf24.hostedemail.com (Postfix) with ESMTP id 432C518002B for ; Fri, 11 Mar 2022 22:37:03 +0000 (UTC) Received: by mail-yw1-f169.google.com with SMTP id 00721157ae682-2d07ae0b1c4so108979027b3.11 for ; Fri, 11 Mar 2022 14:37:03 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=cloudflare.com; s=google; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=DREXPNc2JSl0V5RZY2vCdvrUUa88K+pQUjqT8ymWxMk=; b=O5Q8bxA/KkmDCq6uqRmKbEj/kc8mUESHJC5dAzxPo/3xd3SdDKMrP2QVqRMCCgr3TH MocubDdpCRCus/XBr2Ilzqbxokz5l8MQJdMGCOleXY7keRw5WHYICMvC770ECBYk43MN jBs9nx1C5E3cOPY8PUqY1eacT+koo1SGbBuuY= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=DREXPNc2JSl0V5RZY2vCdvrUUa88K+pQUjqT8ymWxMk=; b=BUMmGuqAcd1SKRxcMf26NkRgvtbmqjV3uVcXSZL+VPMnc/UTSs2WZIyXxDGwESeEeR 17pvA14UdIL7tvcIEiZ26lxLZPysDvo3wXRim9TS+2H7jg7/whiPEh1p+GeDQMLV23kD TrtOYq9WjF/ZBhzto9YLPAl8jvTaZEGizjQQYnKkPyjEkFj8yaNkfCCi+Chfp1bMaH+R 0ti9NX7/H1P8qjl5mNnTUtI0pD9+C3xIdp2Mb3+omEyhhxtLoKGBYObwYTR0FZvv5xDr CqVZtYJ69lPhFe347ZIi0ac3SisNyFvrlGKrRwNWxW6nfTxpkEqNVenCHrP/KmBkEdhv yOrw== X-Gm-Message-State: AOAM5302croXhIsuaRbeRkzAXoU40oP+o43fvT73WRVhd/a3v0TmVMGP k0Wiz0/A50ThQ5fLDMeCotP7N+Jd7s1Pn1J7BiFQXw== X-Google-Smtp-Source: ABdhPJxD9C+lmjCFUuGqD3d+t0UpXnibKp2g1hAFOkt/GuhNL0o7REY2rjJEqu0+69tDgnz526pRiNrNgibT2VMGHTc= X-Received: by 2002:a81:74d4:0:b0:2dc:5a9f:c830 with SMTP id p203-20020a8174d4000000b002dc5a9fc830mr10697375ywc.32.1647038222492; Fri, 11 Mar 2022 14:37:02 -0800 (PST) MIME-Version: 1.0 References: In-Reply-To: From: Ivan Babrou Date: Fri, 11 Mar 2022 14:36:51 -0800 Message-ID: Subject: Re: zram corruption due to uninitialized do_swap_page fault To: Yu Zhao Cc: Linux MM , linux-kernel , Andrew Morton , Minchan Kim , Nitin Gupta , Sergey Senozhatsky , Jens Axboe , linux-block@vger.kernel.org Content-Type: text/plain; charset="UTF-8" Authentication-Results: imf24.hostedemail.com; dkim=pass header.d=cloudflare.com header.s=google header.b="O5Q8bxA/"; spf=none (imf24.hostedemail.com: domain of ivan@cloudflare.com has no SPF policy when checking 209.85.128.169) smtp.mailfrom=ivan@cloudflare.com; dmarc=pass (policy=reject) header.from=cloudflare.com X-Rspam-User: X-Rspamd-Server: rspam05 X-Rspamd-Queue-Id: 432C518002B X-Stat-Signature: f4ie6pg4urc9aq9xxujn7eitm6dpwi1o X-HE-Tag: 1647038223-619956 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 Fri, Mar 11, 2022 at 2:30 PM Yu Zhao wrote: > > On Fri, Mar 11, 2022 at 12:52 PM Ivan Babrou wrote: > > > > Hello, > > > > We're looking into using zram, but unfortunately we ran into some > > corruption issues. > > Kernel version(s) please? You can see 5.16 in dmesg output. I've also replicated on 5.17-rc7 and 5.15.26. The latter is the LTS version we use in production, where coredumps and rocksdb corruptions were observed.