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=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED 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 3B0FEC2BB85 for ; Thu, 9 Apr 2020 18:53:56 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 1024220757 for ; Thu, 9 Apr 2020 18:53:56 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1586458436; bh=CE6acfwNeHaV/lJf/UXhAdEoWKT/WT0OEfSJjB60KZQ=; h=References:In-Reply-To:From:Date:Subject:To:Cc:List-ID:From; b=vtw6Fuz8F+uSBdGSzFH9r+PxMVP2utVv2qUAjxgkRD0ItCX850SeKNhIbSxmGkUCk SCEEwbA4G4ZwHUnsT7tVPSJkY6c/+8mLD17MgCKJx+9NQaG/UQ676VJhG27V/jQJP8 +tvl7HF2tE+7y2Kj9ZK7kULQOxuayz6iJtmByX8I= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726684AbgDISxy (ORCPT ); Thu, 9 Apr 2020 14:53:54 -0400 Received: from mail-lj1-f195.google.com ([209.85.208.195]:37796 "EHLO mail-lj1-f195.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726477AbgDISxx (ORCPT ); Thu, 9 Apr 2020 14:53:53 -0400 Received: by mail-lj1-f195.google.com with SMTP id r24so836915ljd.4 for ; Thu, 09 Apr 2020 11:53:52 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux-foundation.org; s=google; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=E7pgtbN/bt+wE8Ws38NyRuakwTLrAMG8t2S0BXvD8Z8=; b=P50K6S2laGjgCC5+kYm3mykzNY17WZYpwmlVAcvOJsih0C8vmt3wdXVfUWsjxOtnOW 55tUmPNRbSk+0+B8DTDZotd71RaMrDZx6ZsRIWWgMSTD34KVq+xBWs8tcuIyfAxP+p9s LaRXf2CemY6uyqojUc8AdLQzEbePvrXQvUgKg= 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=E7pgtbN/bt+wE8Ws38NyRuakwTLrAMG8t2S0BXvD8Z8=; b=ev3BTlfqFhY1BWgd5fASBfarvaFy7OWX84yNfQAK90p2K+uDkuSmoo3lgKBKZQbj1I hFn7YU+zG5ggv9B28wK5Q+QADkTZklkt1TPzwh6ZY5CUlAL9BkofU8Y0t/zjSftDo906 JbWPg3VG568QE5pOrlNiQBJG/Q+i7Ca/VBL2kVOxmXYJ8OyPTpY8Zfcp08iCeTg3+XeU IgjNpG0q/F8M2o8u2UtbY30nTJIvXBzZwdWxaGbhwnYWGtL3LzIGDy94m5Rfm5Ii94aH Qg2/cXPBUhmMVegI59CFl4BcRNHAwY2Ul4IGmqJuvkjlsktw1qe1hM1WoYUL4eIxlScH 8dLw== X-Gm-Message-State: AGi0PubI/z75D+kmxSU0fCAAwB21ihVjZhxTmzqu1917Yc1F8mwrkTNh xVDgBbaYRPPtrInRLsvfX1zBsLPRa1g= X-Google-Smtp-Source: APiQypJSQWF01L+Bi6MYWmloch+Sb84V6UNyxmt5G3yAfwuUccb6YkX3J/ZqWb9SaHPR+dF5/DjUJQ== X-Received: by 2002:a05:651c:23b:: with SMTP id z27mr718923ljn.125.1586458431237; Thu, 09 Apr 2020 11:53:51 -0700 (PDT) Received: from mail-lj1-f169.google.com (mail-lj1-f169.google.com. [209.85.208.169]) by smtp.gmail.com with ESMTPSA id u19sm1367363lju.83.2020.04.09.11.53.49 for (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 09 Apr 2020 11:53:50 -0700 (PDT) Received: by mail-lj1-f169.google.com with SMTP id m8so853187lji.1 for ; Thu, 09 Apr 2020 11:53:49 -0700 (PDT) X-Received: by 2002:a2e:b619:: with SMTP id r25mr781915ljn.150.1586458429138; Thu, 09 Apr 2020 11:53:49 -0700 (PDT) MIME-Version: 1.0 References: <20200408014010.80428-1-peterx@redhat.com> <20200408174732.bc448bbe41d190bfe5cc252e@linux-foundation.org> <20200409114940.GT21484@bombadil.infradead.org> <20200409111604.c778ff091c00fab5db095e48@linux-foundation.org> In-Reply-To: <20200409111604.c778ff091c00fab5db095e48@linux-foundation.org> From: Linus Torvalds Date: Thu, 9 Apr 2020 11:53:33 -0700 X-Gmail-Original-Message-ID: Message-ID: Subject: Re: [PATCH 0/2] mm: Two small fixes for recent syzbot reports To: Andrew Morton Cc: Dmitry Vyukov , Matthew Wilcox , Peter Xu , LKML , Linux-MM , syzkaller-bugs , syzkaller Content-Type: text/plain; charset="UTF-8" Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Apr 9, 2020 at 11:16 AM Andrew Morton wrote: > > Could I please direct attention back to my original question regarding > the problems we've recently discovered in 4426e945df58 ("mm/gup: allow > VM_FAULT_RETRY for multiple times") and 71335f37c5e8 ("mm/gup: allow to > react to fatal signals")? What earlier question? The "how could this happen" one? Dmitry already answered that one - are you perhaps missing the emails? linux-next has apparently not worked at all for over a month. So it got no testing at all, and thus also all the gup patches got no testing in linux-next. Only when they hit my tree, did they start getting testing. Not because my tree is the only thing getting tested, but because my tree is the only tree that _works_. Linus