Thanks for the help! On Fri, Jan 15, 2016 at 3:36 AM, Qu Wenruo <quwenruo@xxxxxxxxxxxxxx> wrote: > > > cheater00 . wrote on 2016/01/15 03:25 +0100: >> >> Hi guys, >> I have a particularly full btrfs (nearly all of 6TB used on a disk). >> This is different than the fs I've experienced the resize bug on >> recently. >> >> btrfs check crashes on it: >> >> # btrfs check /dev/sdb1 >> Checking filesystem on /dev/sdb1 >> UUID: 95db96b3-96fe-4a12-810c-27c1dbd30b0d >> checking extents >> extent_io.c:543: __alloc_extent_buffer: Assertion failed. >> btrfs[0x80558a3] >> btrfs[0x8092971] >> btrfs(alloc_extent_buffer+0xb7)[0x8093494] >> btrfs(btrfs_find_create_tree_block+0x2b)[0x8083785] >> btrfs(read_tree_block+0x32)[0x808503f] >> btrfs(read_node_slot+0x63)[0x807f430] >> btrfs(btrfs_search_slot+0xb47)[0x8081a28] >> btrfs(btrfs_lookup_extent_info+0xd6)[0x808a0df] >> btrfs[0x806c13a] >> btrfs[0x806d95e] >> btrfs[0x806e5cb] >> btrfs(cmd_check+0x10f8)[0x8070fee] >> btrfs(main+0x14d)[0x8055acb] >> /lib/i386-linux-gnu/libc.so.6(__libc_start_main+0xf3)[0xb74f0a83] >> btrfs[0x8055af8] >> >> >> >> $ uname -a >> Linux SX20S 4.4.0-040400-generic #201601101930 SMP Mon Jan 11 00:49:33 >> UTC 2016 i686 i686 i686 GNU/Linux >> >> $ btrfs --version >> btrfs-progs v4.3 >> >> # btrfs fi show /dev/sdb1 >> Label: 'A' uuid: 95db96b3-96fe-4a12-810c-27c1dbd30b0d >> Total devices 1 FS bytes used 5.41TiB >> devid 1 size 5.46TiB used 5.46TiB path /dev/sdb1 >> >> # btrfs-show-super /dev/sdb1 >> superblock: bytenr=65536, device=/dev/sdb1 >> --------------------------------------------------------- >> csum 0x116b97f0 [match] >> bytenr 65536 >> flags 0x1 >> ( WRITTEN ) >> magic _BHRfS_M [match] >> fsid 95db96b3-96fe-4a12-810c-27c1dbd30b0d >> label P >> generation 128737 >> root 43384832 >> sys_array_size 226 >> chunk_root_generation 106809 >> root_level 1 >> chunk_root 20971520 >> chunk_root_level 1 >> log_root 0 >> log_root_transid 0 >> log_root_level 0 >> total_bytes 6001173463040 >> bytes_used 5948325072896 >> sectorsize 4096 >> nodesize 16384 >> leafsize 16384 >> stripesize 4096 >> root_dir 6 >> num_devices 1 >> compat_flags 0x0 >> compat_ro_flags 0x0 >> incompat_flags 0x61 >> ( MIXED_BACKREF | >> BIG_METADATA | >> EXTENDED_IREF ) >> csum_type 0 >> csum_size 4 >> cache_generation 128737 >> uuid_tree_generation 128737 >> dev_item.uuid e2a8e731-b28c-437b-8cb9-583bb96aea5f >> dev_item.fsid 95db96b3-96fe-4a12-810c-27c1dbd30b0d [match] >> dev_item.type 0 >> dev_item.total_bytes 6001173463040 >> dev_item.bytes_used 6001173463040 >> dev_item.io_align 4096 >> dev_item.io_width 4096 >> dev_item.sector_size 4096 >> dev_item.devid 1 >> dev_item.dev_group 0 >> dev_item.seek_speed 0 >> dev_item.bandwidth 0 >> dev_item.generation 0 >> >> # btrfs fi usage A >> Overall: >> Device size: 5.46TiB >> Device allocated: 5.46TiB >> Device unallocated: 0.00B >> Device missing: 0.00B >> Used: 5.42TiB >> Free (estimated): 35.41GiB (min: 35.41GiB) >> Data ratio: 1.00 >> Metadata ratio: 2.00 >> Global reserve: 512.00MiB (used: 0.00B) >> >> Data,single: Size:5.43TiB, Used:5.40TiB >> /dev/sdb1 5.43TiB >> >> Metadata,single: Size:8.00MiB, Used:0.00B >> /dev/sdb1 8.00MiB >> >> Metadata,DUP: Size:12.50GiB, Used:11.22GiB >> /dev/sdb1 25.00GiB >> >> System,single: Size:4.00MiB, Used:0.00B >> /dev/sdb1 4.00MiB >> >> System,DUP: Size:8.00MiB, Used:608.00KiB >> /dev/sdb1 16.00MiB >> >> Unallocated: >> /dev/sdb1 0.00B >> >> dmesg is showing a lot of stuff like this, but it only started doing >> this when I upgraded to linux 4.4, whereas before on 4.3 this didn't >> happen: >> >> [56319.486446] BTRFS critical (device sdb1): entry offset >> 6102519574528, bytes 20480, bitmap no >> [56319.486447] BTRFS critical (device sdb1): entry offset >> 6102527688704, bytes 24576, bitmap no >> [56319.486448] BTRFS critical (device sdb1): entry offset >> 6102528040960, bytes 8192, bitmap no >> [56319.486450] BTRFS critical (device sdb1): entry offset >> 6102536241152, bytes 8192, bitmap no >> [56319.486451] BTRFS critical (device sdb1): entry offset >> 6102561120256, bytes 8192, bitmap no >> [56319.486452] BTRFS critical (device sdb1): entry offset >> 6102590480384, bytes 4096, bitmap no >> [56319.486453] BTRFS critical (device sdb1): entry offset >> 6102620999680, bytes 12288, bitmap no >> [56319.486454] BTRFS critical (device sdb1): entry offset >> 6102633365504, bytes 16384, bitmap no >> [56319.486455] BTRFS info (device sdb1): block group has cluster?: no >> [56319.486456] BTRFS info (device sdb1): 1 blocks of free space at or >> bigger than bytes is > > > And this dmesg is not a big problem, just means space cache is wrong. > > Normally mount it with clear_cache should be able to make it disappear. > > Thanks, > Qu > > >> -- >> To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in >> the body of a message to majordomo@xxxxxxxxxxxxxxx >> More majordomo info at http://vger.kernel.org/majordomo-info.html >> >> > > -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
