== sanity-lfsck test 18e: Find out orphan OST-object and repair it (5) ========================================================== 05:10:11 (1713345011)
#####
The target MDT-object layout EA slot is occpuied by some new
created OST-object when repair dangling reference case. Such
conflict OST-object has been modified by others. To keep the
new data, the LFSCK will create a new file to refernece this
old orphan OST-object.
#####
[0x200004281:0x3:0x0]
/mnt/lustre/d18e.sanity-lfsck/a1/f1
lmm_stripe_count:  1
lmm_stripe_size:   4194304
lmm_pattern:       raid0
lmm_layout_gen:    0
lmm_stripe_offset: 0
	obdidx		 objid		 objid		 group
	     0	          3266	        0xcc2	   0x240000400

[0x200004281:0x4:0x0]
/mnt/lustre/d18e.sanity-lfsck/a1/f2
lmm_stripe_count:  1
lmm_stripe_size:   4194304
lmm_pattern:       raid0
lmm_layout_gen:    0
lmm_stripe_offset: 0
	obdidx		 objid		 objid		 group
	     0	          3267	        0xcc3	   0x240000400

[0x200004281:0x5:0x0]
/mnt/lustre/d18e.sanity-lfsck/a1/f3
lmm_stripe_count:  1
lmm_stripe_size:   4194304
lmm_pattern:       raid0
lmm_layout_gen:    0
lmm_stripe_offset: 0
	obdidx		 objid		 objid		 group
	     0	          3268	        0xcc4	   0x240000400

[0x200004281:0x6:0x0]
/mnt/lustre/d18e.sanity-lfsck/a1/f4
  lcm_layout_gen:    2
  lcm_mirror_count:  1
  lcm_entry_count:   2
    lcme_id:             1
    lcme_mirror_id:      0
    lcme_flags:          init
    lcme_extent.e_start: 0
    lcme_extent.e_end:   1048576
      lmm_stripe_count:  1
      lmm_stripe_size:   1048576
      lmm_pattern:       raid0
      lmm_layout_gen:    0
      lmm_stripe_offset: 0
      lmm_objects:
      -   0: { l_ost_idx:   0, l_fid: [0x240000400:0xcc5:0x0] }

    lcme_id:             2
    lcme_mirror_id:      0
    lcme_flags:          0
    lcme_extent.e_start: 1048576
    lcme_extent.e_end:   EOF
      lmm_stripe_count:  1
      lmm_stripe_size:   1048576
      lmm_pattern:       raid0
      lmm_layout_gen:    0
      lmm_stripe_offset: -1

Inject failure to make /mnt/lustre/d18e.sanity-lfsck/a1/f1 and /mnt/lustre/d18e.sanity-lfsck/a1/f2
to reference the same OST-object (which is f1's OST-obejct).
Then drop /mnt/lustre/d18e.sanity-lfsck/a1/f1 and its OST-object, so f2 becomes
dangling reference case, but f2's old OST-object is there.
Also the failure makes /mnt/lustre/d18e.sanity-lfsck/a1/f3 and /mnt/lustre/d18e.sanity-lfsck/a1/f4
to reference the same OST-object (which is f3's OST-obejct).
Then drop /mnt/lustre/d18e.sanity-lfsck/a1/f3 and its OST-object, so f4 becomes
dangling reference case, but f4's old OST-object is there.

fail_loc=0x1618
fail_loc=0
stopall to cleanup object cache
setupall
oleg204-server: oleg204-server.virtnet: executing load_modules_local
oleg204-server: libkmod: kmod_module_get_holders: could not open '/sys/module/pcc_cpufreq/holders': No such file or directory
oleg204-server: oleg204-server.virtnet: executing set_default_debug vfstrace rpctrace dlmtrace neterror ha config ioctl super lfsck all
pdsh@oleg204-client: oleg204-server: ssh exited with exit code 1
oleg204-server: oleg204-server.virtnet: executing set_default_debug vfstrace rpctrace dlmtrace neterror ha config ioctl super lfsck all
pdsh@oleg204-client: oleg204-server: ssh exited with exit code 1
oleg204-server: oleg204-server.virtnet: executing set_default_debug vfstrace rpctrace dlmtrace neterror ha config ioctl super lfsck all
pdsh@oleg204-client: oleg204-server: ssh exited with exit code 1
Using TIMEOUT=20
fail_val=10
fail_loc=0x1602
debug=-1
debug_mb=150
debug=-1
debug_mb=150
Trigger layout LFSCK on all devices to find out orphan OST-object
Started LFSCK on the device lustre-MDT0000: scrub layout
Write new data to f2/f4 to modify the new created OST-object.
fail_val=0
fail_loc=0
debug_mb=21
debug_mb=21
debug=super ioctl neterror warning dlmtrace error emerg ha rpctrace vfstrace config console lfsck
debug=super ioctl neterror warning dlmtrace error emerg ha rpctrace vfstrace config console lfsck
There should be stub file under .lustre/lost+found/MDT0000/
The stub file should keep the original f2 or f4 data
foo
[0x200000402:0x5:0x0]
/mnt/lustre/.lustre/lost+found/MDT0000/[0x200000402:0x5:0x0]-[0x200004281:0x4:0x0]-0-C-0
lmm_stripe_count:  1
lmm_stripe_size:   4194304
lmm_pattern:       raid0
lmm_layout_gen:    1
lmm_stripe_offset: 0
	obdidx		 objid		 objid		 group
	     0	          3267	        0xcc3	   0x240000400

foo
[0x200000402:0x6:0x0]
/mnt/lustre/.lustre/lost+found/MDT0000/[0x200000402:0x6:0x0]-[0x200004281:0x6:0x0]-0-C-0
  lcm_layout_gen:    4
  lcm_mirror_count:  1
  lcm_entry_count:   1
    lcme_id:             1
    lcme_mirror_id:      0
    lcme_flags:          init
    lcme_extent.e_start: 0
    lcme_extent.e_end:   1048576
      lmm_stripe_count:  1
      lmm_stripe_size:   1048576
      lmm_pattern:       raid0
      lmm_layout_gen:    1
      lmm_stripe_offset: 0
      lmm_objects:
      -   0: { l_ost_idx:   0, l_fid: [0x240000400:0xcc5:0x0] }

The f2/f4 should contains new data.
dummy
[0x200004281:0x4:0x0]
/mnt/lustre/d18e.sanity-lfsck/a1/f2
lmm_stripe_count:  1
lmm_stripe_size:   4194304
lmm_pattern:       raid0
lmm_layout_gen:    0
lmm_stripe_offset: 0
	obdidx		 objid		 objid		 group
	     0	          3266	        0xcc2	   0x240000400

dummy
[0x200004281:0x6:0x0]
/mnt/lustre/d18e.sanity-lfsck/a1/f4
  lcm_layout_gen:    3
  lcm_mirror_count:  1
  lcm_entry_count:   2
    lcme_id:             1
    lcme_mirror_id:      0
    lcme_flags:          init
    lcme_extent.e_start: 0
    lcme_extent.e_end:   1048576
      lmm_stripe_count:  1
      lmm_stripe_size:   1048576
      lmm_pattern:       raid0
      lmm_layout_gen:    0
      lmm_stripe_offset: 0
      lmm_objects:
      -   0: { l_ost_idx:   0, l_fid: [0x240000400:0xcc4:0x0] }

    lcme_id:             2
    lcme_mirror_id:      0
    lcme_flags:          init
    lcme_extent.e_start: 1048576
    lcme_extent.e_end:   EOF
      lmm_stripe_count:  1
      lmm_stripe_size:   1048576
      lmm_pattern:       raid0
      lmm_layout_gen:    0
      lmm_stripe_offset: 1
      lmm_objects:
      -   0: { l_ost_idx:   1, l_fid: [0x280000400:0xb22:0x0] }