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 Received: from lists.sourceforge.net (lists.sourceforge.net [216.105.38.7]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 8CF64C433F5 for ; Wed, 16 Mar 2022 02:34:24 +0000 (UTC) Received: from [127.0.0.1] (helo=sfs-ml-4.v29.lw.sourceforge.com) by sfs-ml-4.v29.lw.sourceforge.com with esmtp (Exim 4.94.2) (envelope-from ) id 1nUJMX-0004J5-Nz; Wed, 16 Mar 2022 02:34:21 +0000 Received: from [172.30.20.202] (helo=mx.sourceforge.net) by sfs-ml-4.v29.lw.sourceforge.com with esmtps (TLS1.2) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1nUJMV-0004Iz-Qe for linux-f2fs-devel@lists.sourceforge.net; Wed, 16 Mar 2022 02:34:19 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sourceforge.net; s=x; h=Content-Transfer-Encoding:Content-Type:In-Reply-To: From:References:To:Subject:MIME-Version:Date:Message-ID:Sender:Reply-To:Cc: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help:List-Unsubscribe: List-Subscribe:List-Post:List-Owner:List-Archive; bh=tZeQaltGJX60TkXz9k83nSrRENhAGYjCs2mvqva2J1c=; b=CgG3ITlfyKxC0g8zX0J1fnIimI WH+bZH6NkJNdKa5LY/80tl5BMkddDDUAQsrdiLLmxA/8dzMSpBrYBEN5/jaZBjVGWSGkR4AQDNEhJ ve6ERQ1ClI1eJsU2VMMjc1HiM6h9HPKmPESzwtZhi7Te/9XvoeKX+7yY5rtjZ8WY59cw=; DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sf.net; s=x ; h=Content-Transfer-Encoding:Content-Type:In-Reply-To:From:References:To: Subject:MIME-Version:Date:Message-ID:Sender:Reply-To:Cc:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Id:List-Help:List-Unsubscribe:List-Subscribe: List-Post:List-Owner:List-Archive; bh=tZeQaltGJX60TkXz9k83nSrRENhAGYjCs2mvqva2J1c=; b=NKStvVdzwdv0RPZVADi5dJ5uZS WobWCncF7qCCojuqfou+sZ+e5Zc/UtoUDzc1vMfXYuyZlBh6aUcU6aiTdpD9/pVI8zkNMFaOSuydL dat/r3eLUffbvlPWqF46UAHTvLGtkA+04pDn7RYLweFo+A13ldKJgmCwUoVOOkz/9kBE=; Received: from dfw.source.kernel.org ([139.178.84.217]) by sfi-mx-2.v28.lw.sourceforge.com with esmtps (TLS1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.94.2) id 1nUJUO-0007dM-OP for linux-f2fs-devel@lists.sourceforge.net; Wed, 16 Mar 2022 02:34:18 +0000 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 5D26161618 for ; Wed, 16 Mar 2022 02:34:03 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 4E3C5C340E8; Wed, 16 Mar 2022 02:34:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1647398043; bh=Eogc6Mb0AWVbktxTLxW/GzUJFeuhCWMaNW7LZBPXa64=; h=Date:Subject:To:References:From:In-Reply-To:From; b=cnHjgqhsysJy//htkIAsf3IMptVBEUk7dvMelNp8vhhB8EVY8OynieQ/mg5m0OjBH nI0o9Q8lVUZSV4JjNLvPaBCog3IerTscTuPX43i0RvU0IhNvScoAThjnNGIBQbCDhO cj+1sjF+RXB6hsQfoHnHUdQ3q7JiseWi84bYzyJOdMOqyQn8upGAxfFbfsvzwHQPwq ayy3mP0/rDd4Pc7dVXfd8bAF6y6Kukayj0gUsIB6Io5Ryrc4SppkYm3pyYNCqyjxKp bqq7bshr3MW0VK8F7xF8udlTFf8cmyvi60NwG+dBibJGeDmN58AVWQuKvDrDBAlMKe BnOhouFSlMo8g== Message-ID: <3f976ac7-bef5-319d-c79a-6559198ab8b8@kernel.org> Date: Wed, 16 Mar 2022 10:33:59 +0800 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:91.0) Gecko/20100101 Thunderbird/91.6.2 Content-Language: en-US To: Jaegeuk Kim , linux-kernel@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net References: <20220309214834.3408741-1-jaegeuk@kernel.org> <20220309214834.3408741-2-jaegeuk@kernel.org> From: Chao Yu In-Reply-To: <20220309214834.3408741-2-jaegeuk@kernel.org> X-Headers-End: 1nUJUO-0007dM-OP Subject: Re: [f2fs-dev] [PATCH 2/2] f2fs: use spin_lock to avoid hang X-BeenThere: linux-f2fs-devel@lists.sourceforge.net X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Errors-To: linux-f2fs-devel-bounces@lists.sourceforge.net On 2022/3/10 5:48, Jaegeuk Kim wrote: > [14696.634553] task:cat state:D stack: 0 pid:1613738 ppid:1613735 flags:0x00000004 > [14696.638285] Call Trace: > [14696.639038] > [14696.640032] __schedule+0x302/0x930 > [14696.640969] schedule+0x58/0xd0 > [14696.641799] schedule_preempt_disabled+0x18/0x30 > [14696.642890] __mutex_lock.constprop.0+0x2fb/0x4f0 > [14696.644035] ? mod_objcg_state+0x10c/0x310 > [14696.645040] ? obj_cgroup_charge+0xe1/0x170 > [14696.646067] __mutex_lock_slowpath+0x13/0x20 > [14696.647126] mutex_lock+0x34/0x40 > [14696.648070] stat_show+0x25/0x17c0 [f2fs] > [14696.649218] seq_read_iter+0x120/0x4b0 > [14696.650289] ? aa_file_perm+0x12a/0x500 > [14696.651357] ? lru_cache_add+0x1c/0x20 > [14696.652470] seq_read+0xfd/0x140 > [14696.653445] full_proxy_read+0x5c/0x80 > [14696.654535] vfs_read+0xa0/0x1a0 > [14696.655497] ksys_read+0x67/0xe0 > [14696.656502] __x64_sys_read+0x1a/0x20 > [14696.657580] do_syscall_64+0x3b/0xc0 > [14696.658671] entry_SYSCALL_64_after_hwframe+0x44/0xae > [14696.660068] RIP: 0033:0x7efe39df1cb2 > [14696.661133] RSP: 002b:00007ffc8badd948 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 > [14696.662958] RAX: ffffffffffffffda RBX: 0000000000020000 RCX: 00007efe39df1cb2 > [14696.664757] RDX: 0000000000020000 RSI: 00007efe399df000 RDI: 0000000000000003 > [14696.666542] RBP: 00007efe399df000 R08: 00007efe399de010 R09: 00007efe399de010 > [14696.668363] R10: 0000000000000022 R11: 0000000000000246 R12: 0000000000000000 > [14696.670155] R13: 0000000000000003 R14: 0000000000020000 R15: 0000000000020000 > [14696.671965] > [14696.672826] task:umount state:D stack: 0 pid:1614985 ppid:1614984 flags:0x00004000 > [14696.674930] Call Trace: > [14696.675903] > [14696.676780] __schedule+0x302/0x930 > [14696.677927] schedule+0x58/0xd0 > [14696.679019] schedule_preempt_disabled+0x18/0x30 > [14696.680412] __mutex_lock.constprop.0+0x2fb/0x4f0 > [14696.681783] ? destroy_inode+0x65/0x80 > [14696.683006] __mutex_lock_slowpath+0x13/0x20 > [14696.684305] mutex_lock+0x34/0x40 > [14696.685442] f2fs_destroy_stats+0x1e/0x60 [f2fs] > [14696.686803] f2fs_put_super+0x158/0x390 [f2fs] > [14696.688238] generic_shutdown_super+0x7a/0x120 > [14696.689621] kill_block_super+0x27/0x50 > [14696.690894] kill_f2fs_super+0x7f/0x100 [f2fs] > [14696.692311] deactivate_locked_super+0x35/0xa0 > [14696.693698] deactivate_super+0x40/0x50 > [14696.694985] cleanup_mnt+0x139/0x190 > [14696.696209] __cleanup_mnt+0x12/0x20 > [14696.697390] task_work_run+0x64/0xa0 > [14696.698587] exit_to_user_mode_prepare+0x1b7/0x1c0 > [14696.700053] syscall_exit_to_user_mode+0x27/0x50 > [14696.701418] do_syscall_64+0x48/0xc0 > [14696.702630] entry_SYSCALL_64_after_hwframe+0x44/0xae > > Signed-off-by: Jaegeuk Kim Reviewed-by: Chao Yu Thanks, _______________________________________________ Linux-f2fs-devel mailing list Linux-f2fs-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel