On Wed, Apr 23, 2014 at 10:36:42AM -0400, Theodore Ts'o wrote: > OK, with the two of you reporting this problem, can you do me the > following so we can try to seriously dig into this: >[snip] Just got another instance of corruption; this time on the allocation side: [715863.874936] EXT4-fs error (device vdb): ext4_mb_generate_buddy:756: group 50737, 485 clusters in bitmap, 484 in gd; block bitmap corrupt. This time from a different, though still > 8TB filesystem, whose dump information sayeth: Filesystem volume name: <none> Last mounted on: /viceps Filesystem UUID: 5bd1df60-53df-43f9-9785-5a35da485c81 Filesystem magic number: 0xEF53 Filesystem revision #: 1 (dynamic) Filesystem features: has_journal ext_attr resize_inode dir_index filetype extent flex_bg sparse_super large_file huge_file uninit_bg dir_nlink extra_isize Filesystem flags: signed_directory_hash Default mount options: user_xattr acl Filesystem state: clean with errors Errors behavior: Continue Filesystem OS type: Linux Inode count: 335544320 Block count: 2684354560 Reserved block count: 134217728 Free blocks: 1767616367 Free inodes: 328163234 First block: 0 Block size: 4096 Fragment size: 4096 Reserved GDT blocks: 384 Blocks per group: 32768 Fragments per group: 32768 Inodes per group: 4096 Inode blocks per group: 256 RAID stride: 1024 RAID stripe width: 1024 Flex block group size: 16 Filesystem created: Fri Jan 24 18:01:34 2014 Last mount time: Sun Apr 20 14:08:10 2014 Last write time: Tue Apr 29 11:16:22 2014 Mount count: 5 Maximum mount count: -1 Last checked: Wed Apr 9 17:39:32 2014 Check interval: 0 (<none>) Lifetime writes: 3574 GB Reserved blocks uid: 0 (user root) Reserved blocks gid: 0 (group root) First inode: 11 Inode size: 256 Required extra isize: 28 Desired extra isize: 28 Journal inode: 8 Default directory hash: half_md4 Directory Hash Seed: d51561e1-73f7-40c6-bfac-61d8e46a4da4 Journal backup: inode blocks Journal features: journal_incompat_revoke Journal size: 128M Journal length: 32768 Journal sequence: 0x000ab65b Journal start: 0 Cheers, --nwf;
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