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=-8.7 required=3.0 tests=BAYES_00,FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS 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 B068DC433C1 for ; Tue, 23 Mar 2021 05:41:12 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 82DF461983 for ; Tue, 23 Mar 2021 05:41:12 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229675AbhCWFkm (ORCPT ); Tue, 23 Mar 2021 01:40:42 -0400 Received: from mail-io1-f71.google.com ([209.85.166.71]:40184 "EHLO mail-io1-f71.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229451AbhCWFkQ (ORCPT ); Tue, 23 Mar 2021 01:40:16 -0400 Received: by mail-io1-f71.google.com with SMTP id x26so1102925ior.7 for ; Mon, 22 Mar 2021 22:40:15 -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:message-id:subject:from:to; bh=8UIJBBCFx9G0AZ6QPsyJ2f+Jnb2J4vHizufHfr/0rys=; b=T3qCySpxKhFCNzZDt0DICW5F/WrfT7XBwn+VVW/eOeoSaXKmVcqRdbXPd5Oqlz+Ia9 r/wKOdnloaY/ks6vXJD2AIrPdv29IhXLn1C84oZLRCN0YdelfOSQuMV/xLQ7GZh7j6t/ 5sT/66ogUYyCShedU9gpMrTwBJYGsZDJpm+GolJJyPhsu1XjVEHorMbnATsWAD+hAlVE qVo2GgYiMgNV2MOqtzg8SwJ3ppsPZfGbmDQ4EQMxieQcuRII8uFhNUENtwrF4HB0Fewh c1ARz0cA4jBqbcl3nSpxPISYirDY9wb2JIMJhAnOAJC4OUxwVaIa5x0TQGCxALbw3XiN pQ0Q== X-Gm-Message-State: AOAM533VaKYA4nJi7StouNi5CR99vQnSXoVwYWFNcaCNSKEYWiYCXefD weHiKgcfS4nYfJDRD7D9WWpaQf5nbfoGIj26PJUtiEittzpL X-Google-Smtp-Source: ABdhPJywzjL2S5675jBi+LjUShhiMQm7FNQYgD96vO6uxEMlOimdM9ZcZ5MgYdoqaCNTTcck/jPUQlNts8o3Nona6u5GfutE1+LY MIME-Version: 1.0 X-Received: by 2002:a05:6e02:802:: with SMTP id u2mr3172526ilm.298.1616478015540; Mon, 22 Mar 2021 22:40:15 -0700 (PDT) Date: Mon, 22 Mar 2021 22:40:15 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000e754b705be2d9d69@google.com> Subject: [syzbot] WARNING in io_sq_thread_park From: syzbot To: asml.silence@gmail.com, axboe@kernel.dk, io-uring@vger.kernel.org, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: io-uring@vger.kernel.org Hello, syzbot found the following issue on: HEAD commit: 84196390 Merge tag 'selinux-pr-20210322' of git://git.kern.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=152a6ad6d00000 kernel config: https://syzkaller.appspot.com/x/.config?x=5adab0bdee099d7a dashboard link: https://syzkaller.appspot.com/bug?extid=e3a3f84f5cecf61f0583 Unfortunately, I don't have any reproducer for this issue yet. IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+e3a3f84f5cecf61f0583@syzkaller.appspotmail.com ------------[ cut here ]------------ WARNING: CPU: 1 PID: 27907 at fs/io_uring.c:7147 io_sq_thread_park+0xb5/0xd0 fs/io_uring.c:7147 Modules linked in: CPU: 1 PID: 27907 Comm: iou-sqp-27905 Not tainted 5.12.0-rc4-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:io_sq_thread_park+0xb5/0xd0 fs/io_uring.c:7147 Code: 3c 02 00 75 29 48 8b ab a8 00 00 00 48 85 ed 74 0d e8 df a3 99 ff 48 89 ef e8 f7 49 75 ff 5b 5d e9 d0 a3 99 ff e8 cb a3 99 ff <0f> 0b eb 85 48 89 ef e8 bf 36 dd ff eb cd 48 89 ef e8 b5 36 dd ff RSP: 0018:ffffc90001bff9e8 EFLAGS: 00010293 RAX: 0000000000000000 RBX: ffff88802489a000 RCX: 0000000000000000 RDX: ffff88808e7e0000 RSI: ffffffff81da4a65 RDI: ffff88802489a000 RBP: ffff88802489a0a8 R08: 0000000000000001 R09: ffff88806a7420c7 R10: ffffed100d4e8418 R11: 0000000000000000 R12: ffff88806a742590 R13: ffff88806a742458 R14: 1ffff9200037ff42 R15: ffff88806a7424b8 FS: 00007f63505a8700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000540198 CR3: 0000000024531000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 000000000111062a Call Trace: io_ring_ctx_wait_and_kill+0x214/0x700 fs/io_uring.c:8619 io_uring_release+0x3e/0x50 fs/io_uring.c:8646 __fput+0x288/0x920 fs/file_table.c:280 task_work_run+0xdd/0x1a0 kernel/task_work.c:140 io_run_task_work fs/io_uring.c:2238 [inline] io_run_task_work fs/io_uring.c:2228 [inline] io_uring_try_cancel_requests+0x8ec/0xc60 fs/io_uring.c:8770 io_uring_cancel_sqpoll+0x1cf/0x290 fs/io_uring.c:8974 io_sqpoll_cancel_cb+0x87/0xb0 fs/io_uring.c:8907 io_run_task_work_head+0x58/0xb0 fs/io_uring.c:1961 io_sq_thread+0x3e2/0x18d0 fs/io_uring.c:6763 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294 --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@googlegroups.com. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot.