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Mon, 13 Jun 2022 15:19:16 -0700 (PDT) MIME-Version: 1.0 References: <20220608213845.GH22722@merlins.org> <20220609030128.GJ22722@merlins.org> <20220609211511.GW1745079@merlins.org> <20220610191156.GB1664812@merlins.org> <20220613175651.GM1664812@merlins.org> <20220613204647.GO22722@merlins.org> In-Reply-To: <20220613204647.GO22722@merlins.org> From: Josef Bacik Date: Mon, 13 Jun 2022 18:19:05 -0400 Message-ID: Subject: Re: Rebuilding 24TB Raid5 array (was btrfs corruption: parent transid verify failed + open_ctree failed) To: Marc MERLIN Cc: linux-btrfs Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org On Mon, Jun 13, 2022 at 4:46 PM Marc MERLIN wrote: > > On Mon, Jun 13, 2022 at 02:29:30PM -0400, Josef Bacik wrote: > > Alright so we have the missing csum things, which can be fixed with > > > > btrfs rescue init-csum-tree > > (gdb) run rescue init-csum-tree /dev/mapper/dshelf1 > Starting program: /var/local/src/btrfs-progs-josefbacik/btrfs rescue init-csum-tree /dev/mapper/dshelf1 > [Thread debugging using libthread_db enabled] > Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". > FS_INFO IS 0x555555652bc0 > Couldn't find the last root for 8 > FS_INFO AFTER IS 0x555555652bc0 > processed 0 of 21907435520 possible data bytes, 0% > Program received signal SIGSEGV, Segmentation fault. > 0x00005555555e351a in record_csums_eb (eb=0x5555556f1890, processed=processed@entry=0x7fffffffdbe8) at ./kernel-shared/ctree.h:1762 > 1762 BTRFS_SETGET_FUNCS(inode_flags, struct btrfs_inode_item, flags, 64); > (gdb) bt > #0 0x00005555555e351a in record_csums_eb (eb=0x5555556f1890, processed=processed@entry=0x7fffffffdbe8) at ./kernel-shared/ctree.h:1762 > #1 0x00005555555e3906 in record_csums (root=root@entry=0x5555556f15d0, processed=processed@entry=0x7fffffffdbe8) at cmds/rescue-init-csum-tree.c:292 > #2 0x00005555555e3f0f in foreach_root (cb=0x5555555e38fa , fs_info=0x555555652bc0) at cmds/rescue-init-csum-tree.c:338 > #3 btrfs_init_csum_tree (path=path@entry=0x7fffffffe1ce "/dev/mapper/dshelf1") at cmds/rescue-init-csum-tree.c:408 > #4 0x00005555555d88b1 in cmd_rescue_init_csum_tree (cmd=, argc=, argv=) at cmds/rescue.c:102 > #5 0x000055555556c17b in cmd_execute (argv=0x7fffffffdeb8, argc=2, cmd=0x555555648ce0 ) at cmds/commands.h:125 > #6 handle_command_group (cmd=, argc=2, argv=0x7fffffffdeb8) at btrfs.c:152 > #7 0x000055555556c275 in cmd_execute (argv=0x7fffffffdeb0, argc=3, cmd=0x555555649cc0 ) at cmds/commands.h:125 > #8 main (argc=3, argv=0x7fffffffdeb0) at btrfs.c:405 Hmm that's not good, I've pushed a patch to see if what I think is happening is actually happening. Thanks, Josef