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a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=cc:to:subject:message-id:date:from:in-reply-to:references :mime-version:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=7uOJh+ETiQjU+MyD/YUAuXcaoGs4hbJnwWP6YeF46sk=; b=kHHOHllalXVf69Xr5GkDX7J2fRZ4vhuCBbzQNORzbFN/ngT+jZBUTWW9+QbpEky3aZ mLbqnm01OBfbcuvWvp1NQTkWLctpUgTiQisoWkM7BYK4D0bOTjmzaEe4rLtPM9ytag4o 5G7NJ54gc61nn7cybO+IPOfpTCTDzj4IF/EImUaHm+vjTX01nyOgukNDiFkEPxan+/3T H/uen/FchAvBMilhwcCrzSE3yxc/YLOq4LMTNvnx6cu1+qYhgHoLgtEauR1D38Wkxat+ KPfaBubDgs17Djp1qdW/Yn0aYWoKUlxMtb2luxdCcQhkygcvEm5NgdTLbWJ32yRN1vIK LwSg== X-Gm-Message-State: ACrzQf1aSzIqjR/CVTMKXuBnfdYP9xjjhEw/AWyz0uLJ6rsBZvNNFoSR E9dBj9gIXAVBNvm8cTa5SjOO2OopN6EQn4TOeSA= X-Google-Smtp-Source: AMsMyM5DL8ZXb4NXOw/w9IUliVrh2tzqutUSjLu6mZp2gXZkrub5nD9kMv8NYEagECuF7qhownvUQak/fK95hJVzSJ8= X-Received: by 2002:a17:902:d512:b0:181:f1f4:fcb4 with SMTP id b18-20020a170902d51200b00181f1f4fcb4mr58068329plg.102.1667936023224; Tue, 08 Nov 2022 11:33:43 -0800 (PST) MIME-Version: 1.0 References: <20221108184357.55614-1-shy828301@gmail.com> <20221108184357.55614-2-shy828301@gmail.com> <20221108112047.38525702a68029769d4a04f7@linux-foundation.org> In-Reply-To: <20221108112047.38525702a68029769d4a04f7@linux-foundation.org> From: Yang Shi Date: Tue, 8 Nov 2022 11:33:30 -0800 Message-ID: Subject: Re: [mm-unstable v3 PATCH 2/3] mm: khugepaged: allow page allocation fallback to eligible nodes To: Andrew Morton Cc: zokeefe@google.com, mhocko@suse.com, linux-mm@kvack.org, linux-kernel@vger.kernel.org, syzbot+0044b22d177870ee974f@syzkaller.appspotmail.com, "Zach O'Keefe" Content-Type: text/plain; charset="UTF-8" ARC-Authentication-Results: i=1; imf20.hostedemail.com; dkim=pass header.d=gmail.com header.s=20210112 header.b=RvwYczTM; spf=pass (imf20.hostedemail.com: domain of shy828301@gmail.com designates 209.85.216.45 as permitted sender) smtp.mailfrom=shy828301@gmail.com; dmarc=pass (policy=none) header.from=gmail.com ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1667936024; a=rsa-sha256; cv=none; b=FqLmla2t3YfNsclCzu/c9xwDlotP9NjmotjkiWtQWTSQnm4PfDQemqjISYGzAx8cnMWPUA NwnvcMGaiRXI6bDpYgIeGyhsUj8xYk/ZtlC/IvDNqtUK/z9EHAxGbj26DgP8gsg0xFHf1I bLQZ5aLcRXRLQsLwm0xlf0dC4g7TSzk= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1667936024; h=from:from:sender: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: in-reply-to:in-reply-to:references:references:dkim-signature; bh=7uOJh+ETiQjU+MyD/YUAuXcaoGs4hbJnwWP6YeF46sk=; b=GiXRhnFs7BPWVRYPMZ6a+A251HLZd435IbnSVPPFnCWmKo4ifCW9FXZEAKEAPedo+dCLpo sy/hpUubzpyFgyPv9R58Baw0kwyQJBd7uY9MEQW4gbSyRcwPfss7uPLpoIGC+8mJufzLkm OUiFp5MSE+x4Lnb5Az1zdsDBW2PfWFs= X-Rspam-User: Authentication-Results: imf20.hostedemail.com; dkim=pass header.d=gmail.com header.s=20210112 header.b=RvwYczTM; spf=pass (imf20.hostedemail.com: domain of shy828301@gmail.com designates 209.85.216.45 as permitted sender) smtp.mailfrom=shy828301@gmail.com; dmarc=pass (policy=none) header.from=gmail.com X-Rspamd-Server: rspam02 X-Rspamd-Queue-Id: 4651A1C000D X-Stat-Signature: 5wmpahwe68kq5pzmwwnbpgfqrcdx3j6s X-HE-Tag: 1667936024-936629 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 Tue, Nov 8, 2022 at 11:20 AM Andrew Morton wrote: > > On Tue, 8 Nov 2022 10:43:56 -0800 Yang Shi wrote: > > > Syzbot reported the below splat: > > > > ... > > > > "mm: don't warn if the node is offlined" remains in > mm-hotfixes-unstable, so I'll just drop it. Yes, please. > > > > > Reported-by: syzbot+0044b22d177870ee974f@syzkaller.appspotmail.com > > Suggested-by: Zach O'Keefe > > Suggested-by: Michal Hocko > > Reviewed-by: Zach O'Keefe > > Acked-by: Michal Hocko > > Signed-off-by: Yang Shi > > I should add cc:stable, yes? This problem should just happen with MADV_COLLAPSE, which is merged for 6.1, so we should not cc to stable. > > Are we able to identify a Fixes: target? Please use this target: 7d8faaf15545 mm/madvise: introduce MADV_COLLAPSE sync hugepage collapse > >