[xen-4.11-testing bisection] doubtful build-i386-prev

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

branch xen-4.11-testing
xenbranch xen-4.11-testing
job build-i386-prev
testid xen-build

Tree: ovmf prev git://xenbits.xen.org/osstest/ovmf.git
Tree: seabios prev git://xenbits.xen.org/osstest/seabios.git
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:
   4d613feee57ebd4680f3c23398a9b33723f29fd6 
c9ba5276e3217ac6a1ec772dbebf568ba3a8a55d 
e4899550ff7834e1ea5dfbbfb1c618f64e247761
  
  Identical previous flights on this branch:
   155117  started 2020-09-30 00:26:12 Z  blessed real-bisect
   155116  started 2020-09-30 00:19:55 Z  blessed real-bisect
   155115  started 2020-09-30 00:15:17 Z  blessed real-bisect
   155114  started 2020-09-30 00:10:45 Z  blessed real-bisect
   155107  started 2020-09-29 19:16:22 Z  blessed real-bisect
   155118  just generated


----------------------------------------
Running cs-bisection-step 
--graph-out=/home/logs/results/bisect/xen-4.11-testing/build-i386-prev.xen-build
 --summary-out=tmp/155118.bisection-summary --basis-template=151714 
--blessings=real,real-bisect --flight=155118 xen-4.11-testing build-i386-prev 
xen-build
Searching for failure / basis pass:
 155013 fail [host=elbling0] / 154740 [host=pinot1] 154649 [host=fiano1] 154619 
[host=albana0] 151714 [host=albana1] 151318 [host=chardonnay1] 151295 
[host=albana0] 151279 [host=albana1] 150040 [host=fiano1] 149701 [host=albana0] 
149651 [host=debina0] 149556 [host=fiano0] 148127 [host=fiano1] 146104 
[host=pinot1] 146077 [host=albana0] 144753 [host=italia0] 144716 [host=italia0] 
144505 ok.
Failure / basis pass flights: 155013 / 144505
Tree: ovmf prev git://xenbits.xen.org/osstest/ovmf.git
Tree: seabios prev git://xenbits.xen.org/osstest/seabios.git
Tree: xen prev git://xenbits.xen.org/xen.git
Latest dd5c7e3c5282b084daa5bbf0ec229cec699b2c17 
155821a1990b6de78dde5f98fa5ab90e802021e0 
93be943e7d759015bd5db41a48f6dce58e580d5a
Basis pass 4d613feee57ebd4680f3c23398a9b33723f29fd6 
c9ba5276e3217ac6a1ec772dbebf568ba3a8a55d 
e4899550ff7834e1ea5dfbbfb1c618f64e247761
Generating revisions with ./adhoc-revtuple-generator  
git://xenbits.xen.org/osstest/ovmf.git#4d613feee57ebd4680f3c23398a9b33723f29fd6-dd5c7e3c5282b084daa5bbf0ec229cec699b2c17
 
git://xenbits.xen.org/osstest/seabios.git#c9ba5276e3217ac6a1ec772dbebf568ba3a8a55d-155821a1990b6de78dde5f98fa5ab90e802021e0
 
git://xenbits.xen.org/xen.git#e4899550ff7834e1ea5dfbbfb1c618f64e247761-93be943e7d759015bd5db41a48f6dce58e580d5a
Loaded 12581 nodes in revision graph
Searching for test results:
 144505 pass 4d613feee57ebd4680f3c23398a9b33723f29fd6 
c9ba5276e3217ac6a1ec772dbebf568ba3a8a55d 
e4899550ff7834e1ea5dfbbfb1c618f64e247761
 144753 [host=italia0]
 144716 [host=italia0]
 146077 [host=albana0]
 146104 [host=pinot1]
 148127 [host=fiano1]
 149556 [host=fiano0]
 149651 [host=debina0]
 149701 [host=albana0]
 150040 [host=fiano1]
 150942 [host=albana0]
 151035 [host=albana0]
 150984 [host=albana0]
 150986 [host=albana0]
 150953 [host=albana0]
 151012 [host=albana1]
 150988 [host=albana0]
 150994 [host=albana0]
 150996 [host=albana0]
 150977 [host=albana0]
 151061 [host=albana1]
 151093 [host=albana0]
 151140 [host=albana0]
 151166 [host=albana0]
 151204 [host=albana0]
 151260 [host=albana1]
 151234 [host=albana1]
 151295 [host=albana0]
 151279 [host=albana1]
 151318 [host=chardonnay1]
 151714 [host=albana1]
 154619 [host=albana0]
 154649 [host=fiano1]
 154740 [host=pinot1]
 155013 fail dd5c7e3c5282b084daa5bbf0ec229cec699b2c17 
155821a1990b6de78dde5f98fa5ab90e802021e0 
93be943e7d759015bd5db41a48f6dce58e580d5a
 155107 !! flight 155107 no revisions or trees
 155114 !! flight 155114 no revisions or trees
 155115 !! flight 155115 no revisions or trees
 155116 !! flight 155116 no revisions or trees
 155117 !! flight 155117 no revisions or trees
Searching for interesting versions
 Result found: flight 144505 (pass), for basis pass
 For basis failure, parent search stopping at 
4d613feee57ebd4680f3c23398a9b33723f29fd6 
c9ba5276e3217ac6a1ec772dbebf568ba3a8a55d 
e4899550ff7834e1ea5dfbbfb1c618f64e247761, results HASH(0x564678ac6fc0) Result 
found: flight 155013 (fail), for basis failure (at ancestor ~5433)
Need to reproduce basis pass (pass); had 1 already.
Should test 4d613feee57ebd4680f3c23398a9b33723f29fd6 
c9ba5276e3217ac6a1ec772dbebf568ba3a8a55d 
e4899550ff7834e1ea5dfbbfb1c618f64e247761.
neato: graph is too large for cairo-renderer bitmaps. Scaling by 0.441003 to fit
pnmtopng: 6 colors found
Revision graph left in 
/home/logs/results/bisect/xen-4.11-testing/build-i386-prev.xen-build.{dot,ps,png,html,svg}.
Populating 155118...
Need 155118.build-i386-prev (like 155013)
Creating 155118.build-i386-prev (copying from 155013)
Checking for flail (since 144505)...

*** Flailing - >=5 identical flights to no useful effect ***
  Bisector is flailing: >=5 identical flights generated.
  Problem occurs when attempting to test this revision:
   4d613feee57ebd4680f3c23398a9b33723f29fd6 
c9ba5276e3217ac6a1ec772dbebf568ba3a8a55d 
e4899550ff7834e1ea5dfbbfb1c618f64e247761
  
  Identical previous flights on this branch:
   155117  started 2020-09-30 00:26:12 Z  blessed real-bisect
   155116  started 2020-09-30 00:19:55 Z  blessed real-bisect
   155115  started 2020-09-30 00:15:17 Z  blessed real-bisect
   155114  started 2020-09-30 00:10:45 Z  blessed real-bisect
   155107  started 2020-09-29 19:16:22 Z  blessed real-bisect
   155118  just generated