[xen-4.9-testing bisection] doubtful build-amd64-prev

[osstest service owner <osstest-admin@xxxxxxxxxxxxxx>]

branch xen-4.9-testing
xenbranch xen-4.9-testing
job build-amd64-prev
testid xen-build

Tree: xen prev git://xenbits.xen.org/xen.git

*** Flailing - >=5 identical flights to no useful effect ***
  Bisector is flailing: >=5 identical flights generated.
  Problem occurs when attempting to test this revision:
   dee593780213a4997ae6206cc4d103e608613098
  
  Identical previous flights on this branch:
   146191  started 2020-01-17 09:52:34 Z  blessed real-bisect
   146189  started 2020-01-17 09:44:45 Z  blessed real-bisect
   146188  started 2020-01-17 09:41:56 Z  blessed real-bisect
   146187  started 2020-01-17 09:25:10 Z  blessed real-bisect
   146181  started 2020-01-17 05:07:19 Z  blessed real-bisect
   146192  just generated


----------------------------------------
Running cs-bisection-step 
--graph-out=/home/logs/results/bisect/xen-4.9-testing/build-amd64-prev.xen-build
 --summary-out=tmp/146192.bisection-summary --basis-template=144758 
--blessings=real,real-bisect --flight=146192 xen-4.9-testing build-amd64-prev 
xen-build
Searching for failure / basis pass:
 146139 fail [host=huxelrebe1] / 146097 [host=albana0] 146075 [host=godello1] 
144758 [host=godello1] 144723 [host=godello1] 144545 [host=albana0] 144481 
[host=albana1] 144463 [host=albana0] 144430 [host=huxelrebe0] 144412 
[host=albana0] 144381 [host=albana1] 143882 [host=albana1] 143735 
[host=albana0] 139047 [host=godello0] 139019 [host=albana0] 138992 
[host=godello1] 138951 [host=albana0] 138919 [host=godello1] 138898 
[host=godello0] 138875 [host=albana1] 134000 [host=godello1] 133979 [host=god\
 ello0] 133941 [host=godello1] 133914 [host=baroque1] 133881 [host=godello0] 
133850 [host=godello0] 133800 [host=albana0] 133756 [host=godello0] 133712 
[host=godello0] 133684 [host=godello1] 133666 [host=albana0] 133628 
[host=albana1] 133603 [host=albana0] 133578 [host=godello1] 133566 
[host=godello0] 133542 [host=albana0] 133502 [host=godello1] 133466 
[host=godello0] 133295 [host=debina1] 133281 [host=albana0] 132889 
[host=godello0] 132783 [host=baroque0] 132747 [host=baroque1] 132582 [host=gode\
 llo0] 132484 [host=godello1] 130954 [host=godello1] 130890 [host=godello0] 
130851 [host=albana0] 130212 [host=albana0] 130041 [host=godello0] 129796 
[host=albana0] 129694 [host=albana0] 129541 [host=godello1] 129461 ok.
Failure / basis pass flights: 146139 / 129461
(tree in latest but not in basispass: ovmf prev)
(tree in latest but not in basispass: seabios prev)
Tree: xen prev git://xenbits.xen.org/xen.git
Latest 8db85532cbb80c6396e5dab8809feb7b7b0d5c45
Basis pass dee593780213a4997ae6206cc4d103e608613098
Generating revisions with ./adhoc-revtuple-generator  
git://xenbits.xen.org/xen.git#dee593780213a4997ae6206cc4d103e608613098-8db85532cbb80c6396e5dab8809feb7b7b0d5c45
Loaded 5001 nodes in revision graph
Searching for test results:
 128685 [host=albana0]
 128844 [host=albana0]
 128804 [host=godello1]
 128900 [host=godello0]
 128868 [host=godello0]
 128966 [host=debina0]
 128977 [host=debina0]
 129040 [host=pinot0]
 129090 [host=godello1]
 129541 [host=godello1]
 129461 pass dee593780213a4997ae6206cc4d103e608613098
 129694 [host=albana0]
 129796 [host=albana0]
 130041 [host=godello0]
 130212 [host=albana0]
 130890 [host=godello0]
 130851 [host=albana0]
 130954 [host=godello1]
 132484 [host=godello1]
 132582 [host=godello0]
 132747 [host=baroque1]
 132783 [host=baroque0]
 132889 [host=godello0]
 133295 [host=debina1]
 133281 [host=albana0]
 133466 [host=godello0]
 133502 [host=godello1]
 133542 [host=albana0]
 133566 [host=godello0]
 133603 [host=albana0]
 133578 [host=godello1]
 133628 [host=albana1]
 133684 [host=godello1]
 133666 [host=albana0]
 133712 [host=godello0]
 133756 [host=godello0]
 133800 [host=albana0]
 133881 [host=godello0]
 133850 [host=godello0]
 133914 [host=baroque1]
 133979 [host=godello0]
 133941 [host=godello1]
 134000 [host=godello1]
 134721 [host=godello1]
 134855 [host=godello1]
 134971 [host=godello1]
 135037 [host=godello1]
 135185 [host=godello0]
 135421 [host=godello0]
 135453 [host=godello1]
 135624 [host=godello1]
 135761 [host=godello1]
 135883 [host=godello1]
 135991 [host=godello1]
 136213 [host=godello0]
 136098 [host=godello0]
 136332 [host=godello0]
 136493 [host=godello0]
 136640 [host=godello0]
 136918 [host=godello1]
 136845 [host=godello1]
 137020 [host=godello0]
 136989 [host=godello1]
 137080 [host=albana0]
 137108 [host=albana0]
 137169 [host=albana0]
 137267 [host=albana0]
 137371 [host=godello1]
 137461 [host=albana0]
 137567 [host=godello0]
 137721 [host=albana0]
 137664 [host=godello0]
 137849 [host=albana1]
 138225 [host=albana1]
 138368 [host=albana0]
 138842 [host=albana1]
 138772 [host=albana0]
 138810 [host=albana0]
 138898 [host=godello0]
 138951 [host=albana0]
 138875 [host=albana1]
 138919 [host=godello1]
 138992 [host=godello1]
 139019 [host=albana0]
 139047 [host=godello0]
 143735 [host=albana0]
 143882 [host=albana1]
 144412 [host=albana0]
 144381 [host=albana1]
 144463 [host=albana0]
 144481 [host=albana1]
 144430 [host=huxelrebe0]
 144545 [host=albana0]
 144723 [host=godello1]
 144758 [host=godello1]
 146075 [host=godello1]
 146097 [host=albana0]
 146139 fail 8db85532cbb80c6396e5dab8809feb7b7b0d5c45
 146188 !! flight 146188 no revisions or trees
 146181 !! flight 146181 no revisions or trees
 146189 !! flight 146189 no revisions or trees
 146191 !! flight 146191 no revisions or trees
 146187 !! flight 146187 no revisions or trees
Searching for interesting versions
 Result found: flight 129461 (pass), for basis pass
 Result found: flight 146139 (fail), for basis failure
Need to reproduce basis pass (pass); had 1 already.
Should test dee593780213a4997ae6206cc4d103e608613098.
pnmtopng: 102 colors found
Revision graph left in 
/home/logs/results/bisect/xen-4.9-testing/build-amd64-prev.xen-build.{dot,ps,png,html,svg}.
Populating 146192...
Need 146192.build-amd64-prev (like 146139)
Creating 146192.build-amd64-prev (copying from 146139)
Checking for flail (since 129461)...

*** Flailing - >=5 identical flights to no useful effect ***
  Bisector is flailing: >=5 identical flights generated.
  Problem occurs when attempting to test this revision:
   dee593780213a4997ae6206cc4d103e608613098
  
  Identical previous flights on this branch:
   146191  started 2020-01-17 09:52:34 Z  blessed real-bisect
   146189  started 2020-01-17 09:44:45 Z  blessed real-bisect
   146188  started 2020-01-17 09:41:56 Z  blessed real-bisect
   146187  started 2020-01-17 09:25:10 Z  blessed real-bisect
   146181  started 2020-01-17 05:07:19 Z  blessed real-bisect
   146192  just generated


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