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=unavailable 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 75115C43461 for ; Fri, 30 Apr 2021 18:34:32 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 3D93761459 for ; Fri, 30 Apr 2021 18:34:32 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230093AbhD3SfT (ORCPT ); Fri, 30 Apr 2021 14:35:19 -0400 Received: from mail-io1-f70.google.com ([209.85.166.70]:46711 "EHLO mail-io1-f70.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231489AbhD3SfS (ORCPT ); Fri, 30 Apr 2021 14:35:18 -0400 Received: by mail-io1-f70.google.com with SMTP id b16-20020a5ea7100000b02904037ac1756fso13775692iod.13 for ; Fri, 30 Apr 2021 11:34:28 -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:cc; bh=za1NmX+Z+ChlarhNCaXhfZGYx5D/vXt1Y3UJ8u28MUg=; b=ky4g76aQfqWm+TZ54InULhdqlC7HgANOAp1T6QlHeZk9Rdu4dS5wVxg3sYgAMDumbb sXQOgDxy2kGxZ8H5E1lyNpQ2C7J7xly9AWVhrZFXw0Ud3oEV1Fv+YsPZhsjxvG9gbZ/A IAryU6MZVyvRkY5SVLRFrpX87wBmIMmdWXQ1BiADX2Ic4XYooXGs9CQfl44w9lQbctPg +6wb50oZqeLnSO9qaZYlsbN3I8bdEmVz+J5qotZndbI8PftHE1v4fovwbLwQUQxgdjmA DMmixVOVx0TNKZRlyWK7CfVuQtw1cb51yJot9zEn61/jjQFFigXi6LyaO/XsawNapdRx +qnQ== X-Gm-Message-State: AOAM531u5ni0ebq/eCwiAY455JksOkVtY4Yii5/cmyR+/g9Yg0S+E1wX lI6MKO+BdpVx6AOgZHV9CHaSlX/D8J93JzYvPRk0sY0bxr1k X-Google-Smtp-Source: ABdhPJxxYj0KVcw2r+IB3kDa2IJLth21P/Fq7raY/a+aUN006hxo6zk5TX+n86rPAx/u7FfXPX1pHy+P6fC8yybXGAZ155uUJHaM MIME-Version: 1.0 X-Received: by 2002:a92:a301:: with SMTP id a1mr5010723ili.41.1619807668369; Fri, 30 Apr 2021 11:34:28 -0700 (PDT) Date: Fri, 30 Apr 2021 11:34:28 -0700 In-Reply-To: X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000ad7f5805c134dc31@google.com> Subject: Re: INFO: task hung in io_uring_cancel_sqpoll From: syzbot To: Pavel Begunkov Cc: asml.silence@gmail.com, axboe@kernel.dk, io-uring@vger.kernel.org, linux-kernel@vger.kernel.org, oswalpalash@gmail.com, syzkaller-upstream-moderation@googlegroups.com Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: io-uring@vger.kernel.org > On 4/30/21 4:02 PM, Palash Oswal wrote: >> On Fri, Apr 30, 2021 at 8:03 PM Pavel Begunkov wrote: >>> >>> On 4/30/21 3:21 PM, Palash Oswal wrote: >>>> On Thursday, March 18, 2021 at 9:40:21 PM UTC+5:30 syzbot wrote: >>>>> >>>>> Hello, >>>>> >>>>> syzbot found the following issue on: >>>>> >>>>> HEAD commit: 0d7588ab riscv: process: Fix no prototype for arch_dup_tas.. >>>>> git tree: git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux.git fixes >>>>> console output: https://syzkaller.appspot.com/x/log.txt?x=12dde5aed00000 >>>>> kernel config: https://syzkaller.appspot.com/x/.config?x=81c0b708b31626cc >>>>> dashboard link: https://syzkaller.appspot.com/bug?extid=11bf59db879676f59e52 >>>>> userspace arch: riscv64 >>>>> CC: [asml.s...@gmail.com ax...@kernel.dk io-u...@vger.kernel.org linux-...@vger.kernel.org] >>>>> >>>>> Unfortunately, I don't have any reproducer for this issue yet. >>> >>> There was so many fixes in 5.12 after this revision, including sqpoll >>> cancellation related... Can you try something more up-to-date? Like >>> released 5.12 or for-next >>> >> >> The reproducer works for 5.12. >> >> I tested against the HEAD b1ef997bec4d5cf251bfb5e47f7b04afa49bcdfe >> commit on for-next tree >> https://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux-block.git/?h=for-next >> and the reproducer fails. > > Can't reproduce. Does it hang as in the original's report dmesg? > Can you paste logs? > > #syz test: git://git.kernel.dk/linux-block io_uring-5.13 This crash does not have a reproducer. I cannot test it. > > -- > Pavel Begunkov