In integration-scrub branch, following warning messages were displayed by
running xfstests.
# btrfs fi sh /dev/sdd4
Label: none uuid: 8f28d85c-e37c-4c1b-adef-2627ca59be78
Total devices 2 FS bytes used 31.49MB
devid 1 size 9.31GB used 9.31GB path /dev/sdd4
devid 2 size 15.01GB used 9.29GB path /dev/sdc1
Btrfs Btrfs v0.19
# mount
...
/dev/sdd4 on /test7 type btrfs (rw,compress=lzo)
#
Thanks,
Tsutomu
====================================================================================
Nov 3 09:55:18 luna kernel: [ 939.732044] device fsid
8f28d85c-e37c-4c1b-adef-2627ca59be78 devid 1 transid 20510 /dev/sdd4
Nov 3 09:55:18 luna kernel: [ 939.732533] btrfs: use lzo compression
Nov 3 09:55:18 luna kernel: [ 939.732536] btrfs: disk space caching is enabled
Nov 3 09:55:18 luna kernel: [ 939.898190] ------------[ cut here ]------------
Nov 3 09:55:18 luna kernel: [ 939.898223] WARNING: at
fs/btrfs/free-space-cache.c:305 io_ctl_map_page+0x29/0x76 [btrfs]()
Nov 3 09:55:18 luna kernel: [ 939.898227] Hardware name: PRIMERGY
Nov 3 09:55:18 luna kernel: [ 939.898229] Modules linked in: btrfs
zlib_deflate crc32c libcrc32c nfsd lockd nfs_acl auth_rpcgss autofs4 sunrpc
8021q garp stp llc cpufreq_ondemand acpi_cpufreq freq_table mperf cachefiles
fscache ipv6 ext3 jbd dm_mirror dm_region_hash dm_log dm_mod kvm uinput ppdev
parport_pc parport sg pcspkr i2c_i801 i2c_core iTCO_wdt iTCO_vendor_support tg3
shpchp pci_hotplug i3000_edac edac_core ext4 mbcache jbd2 crc16 sd_mod
crc_t10dif megaraid_sas sr_mod cdrom floppy pata_acpi ata_generic ata_piix
libata scsi_mod [last unloaded: microcode]
Nov 3 09:55:18 luna kernel: [ 939.898291] Pid: 13337, comm: dd Not tainted
3.1.0integ-sc+ #1
Nov 3 09:55:18 luna kernel: [ 939.898294] Call Trace:
Nov 3 09:55:18 luna kernel: [ 939.898303] [<ffffffff8104b6fe>]
warn_slowpath_common+0x85/0x9d
Nov 3 09:55:18 luna kernel: [ 939.898308] [<ffffffff8104b730>]
warn_slowpath_null+0x1a/0x1c
Nov 3 09:55:18 luna kernel: [ 939.898328] [<ffffffffa0477507>]
io_ctl_map_page+0x29/0x76 [btrfs]
Nov 3 09:55:18 luna kernel: [ 939.898349] [<ffffffffa0477733>]
io_ctl_check_crc+0x62/0xdd [btrfs]
Nov 3 09:55:18 luna kernel: [ 939.898369] [<ffffffffa0476051>] ?
tree_insert_offset+0xa7/0xb2 [btrfs]
Nov 3 09:55:18 luna kernel: [ 939.898389] [<ffffffffa047917f>]
__load_free_space_cache+0x457/0x509 [btrfs]
Nov 3 09:55:18 luna kernel: [ 939.898410] [<ffffffffa04793ca>]
load_free_space_cache+0xca/0x168 [btrfs]
Nov 3 09:55:18 luna kernel: [ 939.898427] [<ffffffffa043cd12>]
cache_block_group+0xa3/0x1f2 [btrfs]
Nov 3 09:55:18 luna kernel: [ 939.898443] [<ffffffffa043ec3d>]
find_free_extent+0x478/0xa58 [btrfs]
Nov 3 09:55:18 luna kernel: [ 939.898448] [<ffffffff81014e61>] ?
sched_clock+0x9/0xd
Nov 3 09:55:18 luna kernel: [ 939.898454] [<ffffffff8106c28d>] ?
sched_clock_local+0x1c/0x82
Nov 3 09:55:18 luna kernel: [ 939.898471] [<ffffffffa043f2d2>]
btrfs_reserve_extent+0xb5/0x1c4 [btrfs]
Nov 3 09:55:18 luna kernel: [ 939.898487] [<ffffffffa043f561>]
btrfs_alloc_free_block+0x180/0x2a7 [btrfs]
Nov 3 09:55:18 luna kernel: [ 939.898493] [<ffffffff813a7e1d>] ?
__wait_on_bit+0x69/0x7b
Nov 3 09:55:18 luna kernel: [ 939.898507] [<ffffffffa0431446>]
__btrfs_cow_block+0x121/0x3f3 [btrfs]
Nov 3 09:55:18 luna kernel: [ 939.898522] [<ffffffffa0431c1b>]
btrfs_cow_block+0x120/0x166 [btrfs]
Nov 3 09:55:18 luna kernel: [ 939.898536] [<ffffffffa04339ee>]
btrfs_search_slot+0x2ea/0x743 [btrfs]
Nov 3 09:55:18 luna kernel: [ 939.898552] [<ffffffffa0437bae>] ?
reserve_metadata_bytes+0xb8/0x599 [btrfs]
Nov 3 09:55:18 luna kernel: [ 939.898557] [<ffffffff810d3b02>] ?
filemap_fdatawait_range+0x120/0x16b
Nov 3 09:55:18 luna kernel: [ 939.898572] [<ffffffffa0434a2d>]
btrfs_insert_empty_items+0x6a/0xbc [btrfs]
Nov 3 09:55:18 luna kernel: [ 939.898577] [<ffffffff8110b3c9>] ?
kmem_cache_alloc+0x31/0xec
Nov 3 09:55:18 luna kernel: [ 939.898598] [<ffffffffa0470a40>]
btrfs_insert_orphan_item+0x5d/0x75 [btrfs]
Nov 3 09:55:18 luna kernel: [ 939.898619] [<ffffffffa0452474>]
btrfs_orphan_add+0x107/0x124 [btrfs]
Nov 3 09:55:18 luna kernel: [ 939.898640] [<ffffffffa0453c6d>]
btrfs_truncate+0x35d/0x51c [btrfs]
Nov 3 09:55:18 luna kernel: [ 939.898661] [<ffffffffa0453eb6>]
btrfs_setsize+0x8a/0x99 [btrfs]
Nov 3 09:55:18 luna kernel: [ 939.898682] [<ffffffffa0453f26>]
btrfs_setattr+0x61/0xa1 [btrfs]
Nov 3 09:55:18 luna kernel: [ 939.898687] [<ffffffff8112efdb>]
notify_change+0x197/0x279
Nov 3 09:55:18 luna kernel: [ 939.898692] [<ffffffff81119646>]
do_truncate+0x6a/0x87
Nov 3 09:55:18 luna kernel: [ 939.898697] [<ffffffff8112527c>]
do_last+0x575/0x57a
Nov 3 09:55:18 luna kernel: [ 939.898702] [<ffffffff8112399e>] ?
path_init+0xd1/0x2bc
Nov 3 09:55:18 luna kernel: [ 939.898706] [<ffffffff81125809>]
path_openat+0xcf/0x313
Nov 3 09:55:18 luna kernel: [ 939.898710] [<ffffffff81125b46>]
do_filp_open+0x3d/0x89
Nov 3 09:55:18 luna kernel: [ 939.898716] [<ffffffff811d105e>] ?
strncpy_from_user+0x48/0x76
Nov 3 09:55:18 luna kernel: [ 939.898721] [<ffffffff8112fc9b>] ?
alloc_fd+0x7b/0x123
Nov 3 09:55:18 luna kernel: [ 939.898725] [<ffffffff8111877f>]
do_sys_open+0x73/0x105
Nov 3 09:55:18 luna kernel: [ 939.898729] [<ffffffff81118844>]
sys_open+0x20/0x22
Nov 3 09:55:18 luna kernel: [ 939.898734] [<ffffffff813afac2>]
system_call_fastpath+0x16/0x1b
Nov 3 09:55:18 luna kernel: [ 939.898738] ---[ end trace d460dfa0e8887bca ]---
Nov 3 09:55:18 luna kernel: [ 939.898758] btrfs: csum mismatch on free space
cache
Nov 3 09:55:18 luna kernel: [ 939.898814] btrfs: failed to load free space
cache for block group 29360128
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