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SubjectRe: XFS problem
From
Hi again, Christoph.

How you prefer to pre allocate space?
xfs I/O or by 'dd' to do it?

What other information you would like to better understand and manage
to solve this problem?

Below sending the first lines of the output 'filefrag -v cachefile' to
check if there is some useful information ... if you want, I can make
available for download a file with the output of the 'filefrag-v'

####
Filesystem type is: 58465342
File size of cachefile is 885075181568 (216082808 blocks, blocksize 4096)
ext logical physical expected length flags
0 0 37651 1
1 8 8356011 37651 2
2 10 42985973 8356012 5
3 16 8356008 42985977 1
4 24 14384348 8356008 3
5 27 42978781 14384350 4
6 31 49416416 42978784 1
7 32 14384398 49416416 3
8 35 42985981 14384400 3
9 40 14384407 42985983 2
10 42 42990181 14384408 4
11 48 14384433 42990184 3
12 56 14384445 14384435 2
13 64 14384470 14384446 2
14 66 43029387 14384471 2
15 72 14384492 43029388 2
16 80 14384556 14384493 2
17 82 43108186 14384557 2
18 88 14388688 43108187 3
19 96 14391631 14388690 3
20 104 14391634 1
21 112 14391635 1
22 113 41118314 14391635 1
23 120 14391625 41118314 1
24 121 43107765 14391625 5
25 128 14391888 43107769 7
26 136 14391793 14391894 6
27 142 14391806 14391798 1
28 144 14391802 14391806 4
29 152 14391810 14391805 4
30 160 14391818 14391813 3
31 168 14391826 14391820 4
32 176 14391830 1
33 184 30960375 14391830 13
34 200 30960391 30960387 2
35 202 43111672 30960392 5
36 208 30960399 43111676 2
37 210 42949345 30960400 3
38 216 30960407 42949347 3
39 224 30960415 30960409 3
40 232 30960423 30960417 3
41 240 30960431 30960425 3
42 248 30960439 30960433 6
43 256 30960447 30960444 3
44 264 30960455 30960449 2
45 266 41079292 30960456 1
46 272 30960463 41079292 3
47 275 40779450 30960465 1
####

Another fact, tried to run a 'xfs_bmap' file on my 1TB (not sure if
the output of this command would be relevant to you) and got the
following message:

# xfs_bmap -pv cachefile
xfs_bmap: xfsctl(XFS_IOC_GETBMAPX) iflags=0x4 ["file"]: Unable to
allocate memory


Thanks.
Kelbel Junior


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