Laurent Bonnaud wrote on 2015/12/11 15:21 +0100:
On 04/12/2015 01:47, Qu Wenruo wrote:
[run btrfsck]
I did that, too with an old btrfsck version (4.0) and it found the following
errors.
Then I did a btrfsck --repair, and I have been able to complete my "du -s" test.
The next step will we to run a "btrfs scrub" to check if data loss did happen...
Glad to hear that btrfsck --repair can fix it.
It seems to be space cache problem, and normally mount with -o
clearcache should handle it.
But btrfsck --repair should also handle it well.
Thanks,
Qu
# btrfsck /dev/sdb1
Checking filesystem on /dev/sdb1
UUID: f6d4db2e-962b-42db-87b1-35064a4d38e0
checking extents
checking free space cache
block group 314635714560 has wrong amount of free spacefailed to load free
space cache for block group 314635714560
There is no free space entry for 353290420224-353290764288
There is no free space entry for 353290420224-353827291136
cache appears valid but isnt 353290420224
There is no free space entry for 541732175872-541732208640
There is no free space entry for 541732175872-542268981248
cache appears valid but isnt 541732110336
Wanted bytes 32768, found 262144 for off 1008273178624
Wanted bytes 536625152, found 262144 for off 1008273178624
cache appears valid but isnt 1008272932864
block group 1475887497216 has wrong amount of free spacefailed to load free
space cache for block group 1475887497216
block group 1823242977280 has wrong amount of free spacefailed to load free
space cache for block group 1823242977280
There is no free space entry for 1827001073664-1827002810368
There is no free space entry for 1827001073664-1827537944576
cache appears valid but isnt 1827001073664
There is no free space entry for 1969305501696-1969305518080
There is no free space entry for 1969305501696-1969842290688
cache appears valid but isnt 1969305419776
There is no free space entry for 2021381947392-2021381963776
There is no free space entry for 2021381947392-2021918769152
cache appears valid but isnt 2021381898240
There is no free space entry for 2027287478272-2027287724032
There is no free space entry for 2027287478272-2027824349184
cache appears valid but isnt 2027287478272
There is no free space entry for 2143889227776-2143889244160
There is no free space entry for 2143889227776-2144426000384
cache appears valid but isnt 2143889129472
found 1977224107644 bytes used err is -22
total csum bytes: 1925245108
total tree bytes: 5773115392
total fs tree bytes: 3504685056
total extent tree bytes: 156975104
btree space waste bytes: 780048699
file data blocks allocated: 1971884707840
referenced 1971875930112
btrfs-progs v4.0
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