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=-5.7 required=3.0 tests=FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_PASS,URIBL_BLOCKED autolearn=ham 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 5458FC282C4 for ; Tue, 22 Jan 2019 14:46:06 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 2F56021019 for ; Tue, 22 Jan 2019 14:46:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728888AbfAVOqE (ORCPT ); Tue, 22 Jan 2019 09:46:04 -0500 Received: from mail-it1-f197.google.com ([209.85.166.197]:44943 "EHLO mail-it1-f197.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728736AbfAVOqE (ORCPT ); Tue, 22 Jan 2019 09:46:04 -0500 Received: by mail-it1-f197.google.com with SMTP id x82so13282477ita.9 for ; Tue, 22 Jan 2019 06:46:03 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:date:in-reply-to:message-id:subject :from:to; bh=tZ75i4rbvSM77zRbeSNhYTFR1GllBSkW3HGwpNt3Sd8=; b=pV7hlLPLUb5wxk8GdNPDAKKWkEUOaKkyLYyDF6rG/Pe9dXduVcxJ54IAVc4buBIu6T G8w727faS8UWkJ6YCfuFA4RPBtKUGeddLdoXogcITpKJnFnlhyXGLT7WR97gDiYiiAbM VUMN69/8AvPuSq6DfWu53Yfjwqp6m+DXlnu/kr2CJN1v+LvN89bDJdL7wj7bZLCaH+ax lULaaYgPZ21VM5pEhxTCVYvI43gs37Ah0hSpiN2RQLlXbnJS59AdYrH3gtAGJOc9RZ+Q e4nOESmmZ+mWd+vcbgnCUqXHOFMCrnY0WkjZ/gRdnLcYM6OYQ0lJytP4AHEibFdPoIAI gCiA== X-Gm-Message-State: AHQUAuaE3SeJTuqKBIIPVHmJkBLmXktJmWEFFbJWtuX1Wof2YB+4lCHM O3OP3twgSKN568G9rEbZ9P74Ss/9Sflll2aCR2D5bMA7cqw7 X-Google-Smtp-Source: ALg8bN6p8giWAHu3JMN3RnBjUiUatuUrVBTpnvYgJFWxz/LCZYQAwSYrekaoWTh6GWbMEDf1jW/MHGAAv/4QDE9z7F0IXyY/XD6L MIME-Version: 1.0 X-Received: by 2002:a5d:9ad7:: with SMTP id x23mr917387ion.21.1548168363115; Tue, 22 Jan 2019 06:46:03 -0800 (PST) Date: Tue, 22 Jan 2019 06:46:03 -0800 In-Reply-To: X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000005609bd05800d09e9@google.com> Subject: Re: possible deadlock in shmem_fallocate (2) From: syzbot To: arve@android.com, dvyukov@google.com, hughd@google.com, joelaf@google.com, linux-kernel@vger.kernel.org, linux-mm@kvack.org, penguin-kernel@i-love.sakura.ne.jp, syzkaller-bugs@googlegroups.com, tkjos@google.com, willy@infradead.org, xieyisheng1@huawei.com Content-Type: text/plain; charset="UTF-8"; format=flowed; delsp=yes Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, syzbot has tested the proposed patch and the reproducer did not trigger crash: Reported-and-tested-by: syzbot+4b8b031b89e6b96c4b2e@syzkaller.appspotmail.com Tested on: commit: 48b161983ae5 Merge tag 'xarray-5.0-rc3' of git://git.infra.. git tree: upstream kernel config: https://syzkaller.appspot.com/x/.config?x=864ab9949c515a07 compiler: gcc (GCC) 9.0.0 20181231 (experimental) patch: https://syzkaller.appspot.com/x/patch.diff?x=1064a9a0c00000 Note: testing is done by a robot and is best-effort only. 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[209.85.220.69]) by mx.google.com with SMTPS id d194sor8302622iof.116.2019.01.22.06.46.03 for (Google Transport Security); Tue, 22 Jan 2019 06:46:03 -0800 (PST) Received-SPF: pass (google.com: domain of 3qyxhxakbaao289ukvvo1kzzsn.qyyqvo42o1myx3ox3.myw@m3kw2wvrgufz5godrsrytgd7.apphosting.bounces.google.com designates 209.85.220.69 as permitted sender) client-ip=209.85.220.69; Authentication-Results: mx.google.com; spf=pass (google.com: domain of 3qyxhxakbaao289ukvvo1kzzsn.qyyqvo42o1myx3ox3.myw@m3kw2wvrgufz5godrsrytgd7.apphosting.bounces.google.com designates 209.85.220.69 as permitted sender) smtp.mailfrom=3qyxHXAkbAAo289ukvvo1kzzsn.qyyqvo42o1myx3ox3.myw@M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=appspotmail.com X-Google-Smtp-Source: ALg8bN6p8giWAHu3JMN3RnBjUiUatuUrVBTpnvYgJFWxz/LCZYQAwSYrekaoWTh6GWbMEDf1jW/MHGAAv/4QDE9z7F0IXyY/XD6L MIME-Version: 1.0 X-Received: by 2002:a5d:9ad7:: with SMTP id x23mr917387ion.21.1548168363115; Tue, 22 Jan 2019 06:46:03 -0800 (PST) Date: Tue, 22 Jan 2019 06:46:03 -0800 In-Reply-To: X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000005609bd05800d09e9@google.com> Subject: Re: possible deadlock in shmem_fallocate (2) From: syzbot To: arve@android.com, dvyukov@google.com, hughd@google.com, joelaf@google.com, linux-kernel@vger.kernel.org, linux-mm@kvack.org, penguin-kernel@i-love.sakura.ne.jp, syzkaller-bugs@googlegroups.com, tkjos@google.com, willy@infradead.org, xieyisheng1@huawei.com Content-Type: text/plain; charset="UTF-8"; delsp="yes"; format="flowed" 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: Message-ID: <20190122144603.W0626Hq-QR-e67g9c0wws8_onHP3nD-z1N1qnSU7wVI@z> Hello, syzbot has tested the proposed patch and the reproducer did not trigger crash: Reported-and-tested-by: syzbot+4b8b031b89e6b96c4b2e@syzkaller.appspotmail.com Tested on: commit: 48b161983ae5 Merge tag 'xarray-5.0-rc3' of git://git.infra.. git tree: upstream kernel config: https://syzkaller.appspot.com/x/.config?x=864ab9949c515a07 compiler: gcc (GCC) 9.0.0 20181231 (experimental) patch: https://syzkaller.appspot.com/x/patch.diff?x=1064a9a0c00000 Note: testing is done by a robot and is best-effort only.