[Bugs] [Bug 1519646] New: Regression tests: dd command with seek_bytes is failing on centos6

[bugzilla at redhat.com]

https://bugzilla.redhat.com/show_bug.cgi?id=1519646

            Bug ID: 1519646
           Summary: Regression tests: dd command with seek_bytes is
                    failing on centos6
           Product: GlusterFS
           Version: mainline
         Component: tests
          Assignee: bugs at gluster.org
          Reporter: aspandey at redhat.com
                CC: bugs at gluster.org



Description of problem:

https://build.gluster.org/job/centos6-regression/7773/console
is failing.

It looks like that dd command with seek_bytes is not supported on centos6


11:50:19 FAILED COMMAND: dd if=/d/backends/misc_file
of=/mnt/glusterfs/0/test_file bs=1000 count=1 oflag=seek_bytes,sync seek=2050
conv=notrunc
11:50:19 not ok 250 Got "0" instead of "2", LINENUM:60
11:50:19 FAILED COMMAND: 2 echo 0
11:50:19 not ok 251 Got "1" instead of "4", LINENUM:61
11:50:19 FAILED COMMAND: 4 echo 1
11:50:19 ok 252, LINENUM:62
11:50:19 ok 253, LINENUM:63
11:50:19 ok 254, LINENUM:69
11:50:19 ok 255, LINENUM:71
11:50:19 Total loop tests 195
11:50:19 Failed 86/255 subtests 
11:50:19 
11:50:19 Test Summary Report
11:50:19 -------------------
11:50:19 ./tests/basic/ec/ec-stripe.t (Wstat: 0 Tests: 255 Failed: 86)
11:50:19   Failed tests:  20-23, 33-38, 48-51, 53, 63-66, 68, 78-83
11:50:19                 93-98, 108-109, 112-115, 125-126, 129-132
11:50:19                 142-143, 146-149, 159-160, 163-166, 176-177
11:50:19                 180-183, 193-194, 197-200, 210-211, 214-217
11:50:19                 227-228, 231-234, 244-245, 248-251
11:50:19 Files=1, Tests=255, 206 wallclock secs ( 0.11 usr  0.01 sys +  3.13
cusr  2.77 csys =  6.02 CPU)
11:50:19 Result: FAIL
11:50:19 ./tests/basic/ec/ec-stripe.t: bad status 1
11:50:19 
11:50:19        *********************************
11:50:19        *       REGRESSION FAILED       *
11:50:19        * Retrying failed tests in case *
11:50:19        * we got some spurious failures *
11:50:19        *********************************
11:50:19 
11:50:25 dd: invalid output flag: `seek_bytes'
11:50:25 Try `dd --help' for more information.
11:50:25 dd: invalid output flag: `seek_bytes'

Version-Release number of selected component (if applicable):



Could you please confirm this?
How can we run this test on centos 7 if the above is true

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