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=-10.2 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,MAILING_LIST_MULTI, NICE_REPLY_A,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 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 DE7E8C4361B for ; Mon, 7 Dec 2020 07:52:32 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 9BD332220B for ; Mon, 7 Dec 2020 07:52:32 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726188AbgLGHwQ (ORCPT ); Mon, 7 Dec 2020 02:52:16 -0500 Received: from szxga05-in.huawei.com ([45.249.212.191]:9106 "EHLO szxga05-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725996AbgLGHwQ (ORCPT ); Mon, 7 Dec 2020 02:52:16 -0500 Received: from DGGEMS405-HUB.china.huawei.com (unknown [172.30.72.58]) by szxga05-in.huawei.com (SkyGuard) with ESMTP id 4CqFqL3bwNzM1Yf; Mon, 7 Dec 2020 15:50:54 +0800 (CST) Received: from [10.136.114.67] (10.136.114.67) by smtp.huawei.com (10.3.19.205) with Microsoft SMTP Server (TLS) id 14.3.487.0; Mon, 7 Dec 2020 15:51:28 +0800 Subject: Re: [f2fs-dev] [PATCH 1/2] f2fs: don't allow any writes on readonly mount To: Jaegeuk Kim , , , References: <20201203205522.891082-1-jaegeuk@kernel.org> From: Chao Yu Message-ID: <48d45bbd-baaf-e29e-8351-df375ee5a8b0@huawei.com> Date: Mon, 7 Dec 2020 15:51:28 +0800 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:52.0) Gecko/20100101 Thunderbird/52.9.1 MIME-Version: 1.0 In-Reply-To: <20201203205522.891082-1-jaegeuk@kernel.org> Content-Type: text/plain; charset="windows-1252"; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit X-Originating-IP: [10.136.114.67] X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 2020/12/4 4:55, Jaegeuk Kim wrote: > generic_make_request: Trying to write to read-only block-device dm-5 (partno 0) > WARNING: CPU: 7 PID: 546 at block/blk-core.c:2190 generic_make_request_checks+0x664/0x690 > pc : generic_make_request_checks+0x664/0x690 > lr : generic_make_request_checks+0x664/0x690 > Call trace: > generic_make_request_checks+0x664/0x690 > generic_make_request+0xf0/0x3a4 > submit_bio+0x80/0x250 > __submit_merged_bio+0x368/0x4e0 > __submit_merged_write_cond.llvm.12294350193007536502+0xe0/0x3e8 > f2fs_wait_on_page_writeback+0x84/0x128 > f2fs_convert_inline_page+0x35c/0x6f8 > f2fs_convert_inline_inode+0xe0/0x2e0 > f2fs_file_mmap+0x48/0x9c > mmap_region+0x41c/0x74c > do_mmap+0x40c/0x4fc > vm_mmap_pgoff+0xb8/0x114 > vm_mmap+0x34/0x48 > elf_map+0x68/0x108 > load_elf_binary+0x538/0xb70 > search_binary_handler+0xac/0x1dc > exec_binprm+0x50/0x15c > __do_execve_file+0x620/0x740 > __arm64_sys_execve+0x54/0x68 > el0_svc_common+0x9c/0x168 > el0_svc_handler+0x60/0x6c > el0_svc+0x8/0xc > > Signed-off-by: Jaegeuk Kim Reviewed-by: Chao Yu Thanks,