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=-0.4 required=3.0 tests=FROM_LOCAL_HEX, 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 0C96DC7618B for ; Fri, 26 Jul 2019 15:26:04 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id E268522CB9 for ; Fri, 26 Jul 2019 15:26:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2387750AbfGZP0C (ORCPT ); Fri, 26 Jul 2019 11:26:02 -0400 Received: from mail-io1-f72.google.com ([209.85.166.72]:48938 "EHLO mail-io1-f72.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2387755AbfGZP0B (ORCPT ); Fri, 26 Jul 2019 11:26:01 -0400 Received: by mail-io1-f72.google.com with SMTP id z19so59120643ioi.15 for ; Fri, 26 Jul 2019 08:26:01 -0700 (PDT) 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=iHIZY3n79tjWiqF4FrsxNYHlKLoyYYCqi0zeJqFjTkY=; b=l7TyBf3hG1P4ZlZd29AvsYjgWNuEoV1r2HKjOgcax4di+6dXlx9X7w82WxChu+FZzP WKLbJ94X0hEtmcvd9frQgXsyMSqUo9A031sYFNz1qrfsb3bNc6m+6izBp+ojgI4UOe7Z 7A8tEIBIGNcWiJQGZgaNsvq+OOBNkIpU06TJhqaQ+DThHlecPGOasD25qdFRQmI73BEK IAV3BxM4HIlpplK8KBmMBtZ6cljq+3oK04/oNrP9mCxzhRtS8jbolufyV1ITBm8uKSGy G63ck0BbPrt1tYv5o+6wcGjzajAL/t6X/p/lupCxZdKTvmFexlxqFc0pACpWLE7WIvcD HebQ== X-Gm-Message-State: APjAAAV2nlB6gAHIgctnvMAt4WY/nYR8+PqX6TJP1SCLnhjFe7GH4gt3 GA8dwVLj7idEwmnlQIFhPdmS19SZK6XssAjhDEt3ASOFcPkv X-Google-Smtp-Source: APXvYqzHpk/vEMkIMKMtiMdg8PB4RYhne1o6pJ8WL+G6Degv9dbMalQiRsRdhyVuMJOgTkwheM+dhLdMfqp+YLyIul4ruGrn56Gi MIME-Version: 1.0 X-Received: by 2002:a02:4484:: with SMTP id o126mr98783066jaa.34.1564154761082; Fri, 26 Jul 2019 08:26:01 -0700 (PDT) Date: Fri, 26 Jul 2019 08:26:01 -0700 In-Reply-To: <000000000000b4358f058e924c6d@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000e87d14058e9728d7@google.com> Subject: Re: INFO: rcu detected stall in vhost_worker From: syzbot To: jasowang@redhat.com, kvm@vger.kernel.org, linux-kbuild@vger.kernel.org, linux-kernel@vger.kernel.org, michal.lkml@markovi.net, mst@redhat.com, netdev@vger.kernel.org, syzkaller-bugs@googlegroups.com, torvalds@linux-foundation.org, virtualization@lists.linux-foundation.org, yamada.masahiro@socionext.com Content-Type: text/plain; charset="UTF-8"; format=flowed; delsp=yes Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org syzbot has bisected this bug to: commit 0ecfebd2b52404ae0c54a878c872bb93363ada36 Author: Linus Torvalds Date: Sun Jul 7 22:41:56 2019 +0000 Linux 5.2 bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=118810bfa00000 start commit: 13bf6d6a Add linux-next specific files for 20190725 git tree: linux-next kernel config: https://syzkaller.appspot.com/x/.config?x=8ae987d803395886 dashboard link: https://syzkaller.appspot.com/bug?extid=36e93b425cd6eb54fcc1 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=15112f3fa00000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=131ab578600000 Reported-by: syzbot+36e93b425cd6eb54fcc1@syzkaller.appspotmail.com Fixes: 0ecfebd2b524 ("Linux 5.2") For information about bisection process see: https://goo.gl/tpsmEJ#bisection