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=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 6B7D9C433E0 for ; Sat, 4 Jul 2020 18:34:02 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 0CE9A20720 for ; Sat, 4 Jul 2020 18:34:01 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="fgtoeIsv" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 0CE9A20720 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 4E24D8D005D; Sat, 4 Jul 2020 14:34:01 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 492568D0005; Sat, 4 Jul 2020 14:34:01 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 3A7A48D005D; Sat, 4 Jul 2020 14:34:01 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0247.hostedemail.com [216.40.44.247]) by kanga.kvack.org (Postfix) with ESMTP id 2607E8D0005 for ; Sat, 4 Jul 2020 14:34:01 -0400 (EDT) Received: from smtpin09.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay04.hostedemail.com (Postfix) with ESMTP id 8B0ED1EE6 for ; Sat, 4 Jul 2020 18:34:00 +0000 (UTC) X-FDA: 77001242640.09.error35_280673426e9c Received: from filter.hostedemail.com (10.5.16.251.rfc1918.com [10.5.16.251]) by smtpin09.hostedemail.com (Postfix) with ESMTP id 61F53180AD801 for ; Sat, 4 Jul 2020 18:34:00 +0000 (UTC) X-HE-Tag: error35_280673426e9c X-Filterd-Recvd-Size: 3410 Received: from mail-qt1-f195.google.com (mail-qt1-f195.google.com [209.85.160.195]) by imf38.hostedemail.com (Postfix) with ESMTP for ; Sat, 4 Jul 2020 18:34:00 +0000 (UTC) Received: by mail-qt1-f195.google.com with SMTP id v19so26130643qtq.10 for ; Sat, 04 Jul 2020 11:33:59 -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; bh=N/5k2R+JbFFv5Zt3sYTeAteh7xOpAzaX7HLFel+IMQs=; b=fgtoeIsvB+aNs/S3gyjjy0M8f7lgxBvOe2QQrDMpRD76BkvB52uVJoyrEWSCA+920t k2WZJBb0qd0pBMO2RVQhOxUe0HFtKTlnrZqkYQMsKPWuE2G25NrEKRJ4YoWc+p/wOCwu SeVBpLtV6CWPATc+mghaGzdufuIwwZmp1m1i+bTvOICwhWoNWZ7ruXdW6cdszu+noVES sCjoi17GrJwAstH2DiXOmDo6PVGU5bk3yAY4E8t1UFS7+Dd9+mRAgMFF3bHVxFdP3B/K glLErArJDD9Gdz1IcCkZuJkPCTpP7960VMgetvnWJKwQm5ozm3frbwctKwRLYy61gjo0 j6uw== 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; bh=N/5k2R+JbFFv5Zt3sYTeAteh7xOpAzaX7HLFel+IMQs=; b=G6a95Muge2PtWVYdwxFuYylKjywEfkv+3h8aBlkwBik6HOKG/ThjvgTqmK8RWxGrvc TrTCHCY8hYUHVJLASu5F7Y/q8Fx+CYG5/ZrtndsV3Fho1ZNq1TRGnmQsmiag/L1hcDYT u7vm4UBywRhuVIxILadXxg9q1JyZVN+oNCi+b1TdBN4AF/+JplW3occp0a+ExFzetKmQ MYuRlEFLsKUVFk5IJLUX5RfbqisCaqzg6EW8f7o52L2j03+vGaN3kkJd+OJvlPGI/Sdf OGNJNkP2CyNVpPQ48qqH5H1fWN41qEiHuykKKvXSgRf6Vr8BSfXAg0bkGo7dRrbPlF1f kQiw== X-Gm-Message-State: AOAM532mCtVorDjwYEZ2wdz00Ru+W8FCsfEnOnxLHupQjkzLmfPAdXFp NFaj/38+frQRJmYg0kmYB63DEQ+8GgQi9p7QobI= X-Google-Smtp-Source: ABdhPJzXgAJYvVM9+mETb10fWN3XxGpFlBj4Tb0dvEIwhFIQ/zzLcwKz1SlIrUblnUpk79OKp3bJnGgPAnSa9qy6KRs= X-Received: by 2002:aed:3201:: with SMTP id y1mr41756532qtd.156.1593887639282; Sat, 04 Jul 2020 11:33:59 -0700 (PDT) MIME-Version: 1.0 References: <20200704113722.GM25523@casper.infradead.org> <20200704120135.GO25523@casper.infradead.org> In-Reply-To: <20200704120135.GO25523@casper.infradead.org> From: Pekka Enberg Date: Sat, 4 Jul 2020 21:33:43 +0300 Message-ID: Subject: Re: 5.8.0rc3 page allocation failure: order:0, mode:0x40810 To: Matthew Wilcox Cc: Chris Murphy , Linux Memory Management List , Dan Williams , Mike Kravetz Content-Type: text/plain; charset="UTF-8" X-Rspamd-Queue-Id: 61F53180AD801 X-Spamd-Result: default: False [0.00 / 100.00] X-Rspamd-Server: rspam01 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000052, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: Hi Matthew, On Sat, Jul 4, 2020 at 3:01 PM Matthew Wilcox wrote: > One of the things we (mostly Mike Kravetz) found recently when debugging > a memory allocation stall issue is that this message does not capture > the state which actually caused the message to be printed. In the > intervening time between the memory allocation failure being detected > and this message being printed, kswapd may have made forward progress. Oh, right, makes sense. Worth fixing, of course, but probably not so easy to do. - Pekka