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=-3.7 required=3.0 tests=BAYES_00,FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS 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 3AF78C43461 for ; Thu, 8 Apr 2021 19:43:15 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 170F861104 for ; Thu, 8 Apr 2021 19:43:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232502AbhDHTnX (ORCPT ); Thu, 8 Apr 2021 15:43:23 -0400 Received: from mail-io1-f70.google.com ([209.85.166.70]:55463 "EHLO mail-io1-f70.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231676AbhDHTnV (ORCPT ); Thu, 8 Apr 2021 15:43:21 -0400 Received: by mail-io1-f70.google.com with SMTP id e15so2086771ioe.22 for ; Thu, 08 Apr 2021 12:43:09 -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=QAQHHUTa7Tp/+HffxF26prPlCaL4a426RwfTcuHtH+o=; b=ixI/O8kGH86aLrRo58u0iSzL2ovEgLTPQb8Ok6lRH2oz09cIbZfAX+NspfIDz66AHC P6UEIf0R+yl35Fx6SdI6lqVjJqyTeA0D92WuIzVZAREs/hK0s/j8gs9Xwa0dPyqoN7B/ rq5BVX9YCT7MWnEgIvP+PrREsoW3FYugCfzf3/SAN7usxfeE24aEw6DpoJy1tCJv9yuc WspUrDQhjTwSPGuAgsUg8b5+Mv8ntrEMDZ7FwCPEXWig0oO4R12THmXGpsvDdHgEBGBt QSWJbSOwVEUoJT27ulkBZBQQvTBSvU7lIa3QFqMJbYGZxLlxO1v+Z6jP/OlkiHrzAxB1 Jn+Q== X-Gm-Message-State: AOAM531zYu6bpyEroE/uYecpnWS72k9qwQbizOu5q3CLPqdk0t4Gx3C7 l9TQFi1A/9oeFOMW3/jRDqFhenz3lCR36zmnfoxjqo2yuFwt X-Google-Smtp-Source: ABdhPJyn4ilIIDryRqlPdr9Xyrum6gvlbzGTLCpVJ28iXXrYaFVYW1uN84V49TH9mcJWXqqJlGwn40JFc7lEhhEoqq6IyjX7VZXK MIME-Version: 1.0 X-Received: by 2002:a05:6e02:20cd:: with SMTP id 13mr8230433ilq.126.1617910989145; Thu, 08 Apr 2021 12:43:09 -0700 (PDT) Date: Thu, 08 Apr 2021 12:43:09 -0700 In-Reply-To: <000000000000430bf505bcef3b00@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000c94d8605bf7b4135@google.com> Subject: Re: [syzbot] possible deadlock in io_sq_thread_finish From: syzbot To: asml.silence@gmail.com, axboe@kernel.dk, bp@alien8.de, hdanton@sina.com, hpa@zytor.com, io-uring@vger.kernel.org, jmattson@google.com, joro@8bytes.org, kvm@vger.kernel.org, linux-kernel@vger.kernel.org, mingo@redhat.com, pbonzini@redhat.com, seanjc@google.com, syzkaller-bugs@googlegroups.com, tglx@linutronix.de, vkuznets@redhat.com, wanpengli@tencent.com, x86@kernel.org Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org syzbot suspects this issue was fixed by commit: commit f4e61f0c9add3b00bd5f2df3c814d688849b8707 Author: Wanpeng Li Date: Mon Mar 15 06:55:28 2021 +0000 x86/kvm: Fix broken irq restoration in kvm_wait bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=1022d7aad00000 start commit: 144c79ef Merge tag 'perf-tools-fixes-for-v5.12-2020-03-07'.. git tree: upstream kernel config: https://syzkaller.appspot.com/x/.config?x=db9c6adb4986f2f2 dashboard link: https://syzkaller.appspot.com/bug?extid=ac39856cb1b332dbbdda syz repro: https://syzkaller.appspot.com/x/repro.syz?x=167574dad00000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=12c8f566d00000 If the result looks correct, please mark the issue as fixed by replying with: #syz fix: x86/kvm: Fix broken irq restoration in kvm_wait For information about bisection process see: https://goo.gl/tpsmEJ#bisection