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[34.168.104.7]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-70651305157sm1862472b3a.208.2024.06.21.14.36.24 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 21 Jun 2024 14:36:25 -0700 (PDT) Date: Fri, 21 Jun 2024 14:36:21 -0700 To: Jaegeuk Kim Message-ID: References: <20240618022334.1576056-1-jaegeuk@kernel.org> <2cb67503-d974-4db2-942d-b68b69de9447@kernel.org> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <2cb67503-d974-4db2-942d-b68b69de9447@kernel.org> X-Headers-End: 1sKmQD-0004iF-O4 Subject: Re: [f2fs-dev] [PATCH] f2fs: assign CURSEG_ALL_DATA_ATGC if blkaddr is valid 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: , From: William McVicker via Linux-f2fs-devel Reply-To: William McVicker Cc: Jaegeuk Kim , linux-kernel@vger.kernel.org, stable@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: linux-f2fs-devel-bounces@lists.sourceforge.net On 06/19/2024, Chao Yu wrote: > On 2024/6/18 10:23, Jaegeuk Kim wrote: > > mkdir /mnt/test/comp > > f2fs_io setflags compression /mnt/test/comp > > dd if=/dev/zero of=/mnt/test/comp/testfile bs=16k count=1 > > truncate --size 13 /mnt/test/comp/testfile > > > > In the above scenario, we can get a BUG_ON. > > kernel BUG at fs/f2fs/segment.c:3589! > > Call Trace: > > do_write_page+0x78/0x390 [f2fs] > > f2fs_outplace_write_data+0x62/0xb0 [f2fs] > > f2fs_do_write_data_page+0x275/0x740 [f2fs] > > f2fs_write_single_data_page+0x1dc/0x8f0 [f2fs] > > f2fs_write_multi_pages+0x1e5/0xae0 [f2fs] > > f2fs_write_cache_pages+0xab1/0xc60 [f2fs] > > f2fs_write_data_pages+0x2d8/0x330 [f2fs] > > do_writepages+0xcf/0x270 > > __writeback_single_inode+0x44/0x350 > > writeback_sb_inodes+0x242/0x530 > > __writeback_inodes_wb+0x54/0xf0 > > wb_writeback+0x192/0x310 > > wb_workfn+0x30d/0x400 > > > > The reason is we gave CURSEG_ALL_DATA_ATGC to COMPR_ADDR where the > > page was set the gcing flag by set_cluster_dirty(). > > > > Cc: stable@vger.kernel.org > > Fixes: 4961acdd65c9 ("f2fs: fix to tag gcing flag on page during block migration") > > Signed-off-by: Jaegeuk Kim > > Reviewed-by: Chao Yu Hi Jaegeuk, I've been running my personal Pixel 8a device with this change for the past 3 days and haven't hit any kernal panics since applying it. Feel free to include: Tested-by: Will McVicker Thanks, Will _______________________________________________ Linux-f2fs-devel mailing list Linux-f2fs-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel