From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-it1-f200.google.com (mail-it1-f200.google.com [209.85.166.200]) by kanga.kvack.org (Postfix) with ESMTP id 93B0B8E0001 for ; Tue, 22 Jan 2019 09:46:04 -0500 (EST) Received: by mail-it1-f200.google.com with SMTP id p124so3345372itd.8 for ; Tue, 22 Jan 2019 06:46:04 -0800 (PST) Received: from mail-sor-f69.google.com (mail-sor-f69.google.com. [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) MIME-Version: 1.0 Date: Tue, 22 Jan 2019 06:46:03 -0800 In-Reply-To: Message-ID: <0000000000005609bd05800d09e9@google.com> Subject: Re: possible deadlock in shmem_fallocate (2) From: syzbot Content-Type: text/plain; charset="UTF-8"; format=flowed; delsp=yes Sender: owner-linux-mm@kvack.org List-ID: 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 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.