From: Brad Campbell Subject: Re: Online resize issue with 3.13.5 & 3.15.6 Date: Sat, 26 Jul 2014 12:12:11 +0800 Message-ID: <53D32A9B.50903@fnarfbargle.com> References: <53CBA75B.2030102@fnarfbargle.com> <53CC66DA.2080804@fnarfbargle.com> <20140725081312.GO6397@azat> <53D24307.6050903@fnarfbargle.com> <20140725140715.GR1865@thunk.org> <53D320F6.40809@fnarfbargle.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: Azat Khuzhin , linux-ext4@vger.kernel.org To: Theodore Ts'o Return-path: Received: from ns3.fnarfbargle.com ([103.4.17.7]:47560 "EHLO ns3.fnarfbargle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750743AbaGZEiw (ORCPT ); Sat, 26 Jul 2014 00:38:52 -0400 In-Reply-To: <53D320F6.40809@fnarfbargle.com> Sender: linux-ext4-owner@vger.kernel.org List-ID: On 26/07/14 11:31, Brad Campbell wrote: > On 25/07/14 22:07, Theodore Ts'o wrote: >> On Fri, Jul 25, 2014 at 07:44:07PM +0800, Brad Campbell wrote: >>> >>> Appreciate you taking a look at this and I see where you are going >>> with it. >> >> This patch looks good to me. If you could give it a try, I would >> appreciate it. >> >> This looks like the same bug which was reported in Ubuntu: >> >> https://bugs.launchpad.net/ubuntu/+source/e2fsprogs/+bug/1321958 > > > The patch would not apply automatically to 1.42.11 but was easy enough > to apply by hand. > > root@srv:~/src/e2fsprogs/e2fsprogs-1.42.11/resize# ./resize2fs -d 255 > /dev/md0 > resize2fs 1.42.11 (09-Jul-2014) > fs has 4007207 inodes, 1957 groups required. > fs requires 4374122900 data blocks. > With 1957 group(s), we have 63820826 blocks available. > Added 131540 extra group(s), blks_needed 4374122900, data_blocks > 4356990326, last_start 4356599580 > Added 523 extra group(s), blks_needed 4374122900, data_blocks > 4374059350, last_start 4373440788 > Added 2 extra group(s), blks_needed 4374122900, data_blocks 4374124886, > last_start 4373473426 > Last group's overhead is 1430 > Need 649474 data blocks in last group > Final size of last group is 650904 > Estimated blocks needed: 4391437088 > Extents safety margin: 2826959 > Filesystem at /dev/md0 is mounted on /server; on-line resizing required > old_desc_blocks = 2768, new_desc_blocks = 2795 > ./resize2fs: Invalid argument While checking for on-line resizing support > > [489412.650430] EXT4-fs (md0): resizing filesystem from 5804916736 to > 5860149888 blocks > [489412.700282] EXT4-fs warning (device md0): verify_reserved_gdb:713: > reserved GDT 2769 missing grp 177147 (5804755665) > [489412.739676] EXT4-fs (md0): resized filesystem to 5860149888 > [489413.215230] EXT4-fs warning (device md0): ext4_group_extend:1720: > can't shrink FS - resize aborted Rebooted, did an fsck -f (was clean) and ran it again without the fs mounted. root@srv:~/src/e2fsprogs/e2fsprogs-1.42.11/resize# ./resize2fs -d 255 /dev/md0 resize2fs 1.42.11 (09-Jul-2014) fs has 4007359 inodes, 1957 groups required. fs requires 4655464570 data blocks. With 1957 group(s), we have 63820826 blocks available. Added 140126 extra group(s), blks_needed 4655464570, data_blocks 4637219414, last_start 4636829448 Added 557 extra group(s), blks_needed 4655464570, data_blocks 4655398390, last_start 4654584520 Added 3 extra group(s), blks_needed 4655464570, data_blocks 4655496694, last_start 4654617158 Last group's overhead is 1820 Need 847412 data blocks in last group Final size of last group is 849232 Estimated blocks needed: 4674027936 Extents safety margin: 2261777 Resizing the filesystem on /dev/md0 to 5860149888 (4k) blocks. read_bitmaps: Memory used: 132k/763980k (49k/84k), time: 113.93/ 1.26/ 4.45 read_bitmaps: I/O read: 648MB, write: 0MB, rate: 5.69MB/s fix_uninit_block_bitmaps 1: Memory used: 132k/763980k (49k/84k), time: 7.61/ 7.91/ 0.00 adjust_superblock: Memory used: 132k/18014398507538268k (52k/81k), time: 0.49/ 0.57/ 0.00 fix_uninit_block_bitmaps 2: Memory used: 132k/18014398507538268k (52k/81k), time: 8.10/ 8.17/ 0.00 blocks_to_move: Memory used: 132k/18014398508253624k (52k/81k), time: 0.74/ 0.50/ 0.05 Number of free blocks: 1126335202/7242495991050, Needed: 0 block_mover: Memory used: 132k/18014398508254140k (57k/76k), time: 192.51/192.28/ 0.00 block_mover: I/O read: 1MB, write: 0MB, rate: 0.01MB/s inode_scan_and_fix: Memory used: 132k/18014398508254140k (57k/76k), time: 0.00/ 0.00/ 0.00 inode_ref_fix: Memory used: 132k/18014398508254140k (57k/76k), time: 0.00/ 0.00/ 0.00 move_itables: Memory used: 132k/18014398508254140k (57k/76k), time: 0.01/ 0.00/ 0.00 calculate_summary_stats: Memory used: 132k/18014398508254140k (57k/76k), time: 168.74/168.43/ 0.01 fix_resize_inode: Memory used: 132k/18014398508254140k (61k/72k), time: 0.00/ 0.00/ 0.00 fix_resize_inode: I/O read: 0MB, write: 3MB, rate: 1843.88MB/s fix_sb_journal_backup: Memory used: 132k/18014398508254140k (61k/72k), time: 0.00/ 0.00/ 0.00 overall resize2fs: Memory used: 132k/18014398508254140k (61k/72k), time: 492.61/379.13/ 4.52 overall resize2fs: I/O read: 648MB, write: 13MB, rate: 1.34MB/s The filesystem on /dev/md0 is now 5860149888 blocks long. So it would appear to have succeeded when run offline.