[xen-unstable bisection] doubtful test-amd64-amd64-xl-pvshim

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

branch xen-unstable
xenbranch xen-unstable
job test-amd64-amd64-xl-pvshim
testid debian-install

Tree: linux git://xenbits.xen.org/linux-pvops.git
Tree: linuxfirmware git://xenbits.xen.org/osstest/linux-firmware.git
Tree: qemu git://xenbits.xen.org/qemu-xen-traditional.git
Tree: qemuu git://xenbits.xen.org/qemu-xen.git
Tree: xen 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:
   c3038e718a19fc596f7b1baba0f83d5146dc7784 
c530a75c1e6a472b0eb9558310b518f0dfcd8860 
3d273dd05e51e5a1ffba3d98c7437ee84e8f8764 
ea6d3cd1ed79d824e605a70c3626bc437c386260 
884ef07f4f66b9d12fc4811047db95ba649db85c
  
  Identical previous flights on this branch:
   155873  started 2020-10-15 19:06:18 Z  blessed real-bisect
   155872  started 2020-10-15 18:47:49 Z  blessed real-bisect
   155871  started 2020-10-15 18:25:55 Z  blessed real-bisect
   155868  started 2020-10-15 18:00:35 Z  blessed real-bisect
   155867  started 2020-10-15 17:39:56 Z  blessed real-bisect
   155874  just generated


----------------------------------------
Running cs-bisection-step 
--graph-out=/home/logs/results/bisect/xen-unstable/test-amd64-amd64-xl-pvshim.debian-install
 --summary-out=tmp/155874.bisection-summary --basis-template=155788 
--blessings=real,real-bisect --flight=155874 xen-unstable 
test-amd64-amd64-xl-pvshim debian-install
Searching for failure / basis pass:
 155832 fail [host=godello0] / 155788 [host=fiano1] 155759 [host=godello1] 
155712 [host=albana0] 155630 [host=rimava1] 155600 [host=pinot1] 155549 
[host=albana1] 155532 [host=elbling1] 155510 [host=chardonnay0] 155493 ok.
Failure / basis pass flights: 155832 / 155493
(tree with no url: minios)
(tree with no url: ovmf)
(tree with no url: seabios)
Tree: linux git://xenbits.xen.org/linux-pvops.git
Tree: linuxfirmware git://xenbits.xen.org/osstest/linux-firmware.git
Tree: qemu git://xenbits.xen.org/qemu-xen-traditional.git
Tree: qemuu git://xenbits.xen.org/qemu-xen.git
Tree: xen git://xenbits.xen.org/xen.git
Latest c3038e718a19fc596f7b1baba0f83d5146dc7784 
c530a75c1e6a472b0eb9558310b518f0dfcd8860 
3d273dd05e51e5a1ffba3d98c7437ee84e8f8764 
ea6d3cd1ed79d824e605a70c3626bc437c386260 
884ef07f4f66b9d12fc4811047db95ba649db85c
Basis pass c3038e718a19fc596f7b1baba0f83d5146dc7784 
c530a75c1e6a472b0eb9558310b518f0dfcd8860 
3d273dd05e51e5a1ffba3d98c7437ee84e8f8764 
ea6d3cd1ed79d824e605a70c3626bc437c386260 
8ef6345ef557cc2c47298217635a3088eaa59893
Generating revisions with ./adhoc-revtuple-generator  
git://xenbits.xen.org/linux-pvops.git#c3038e718a19fc596f7b1baba0f83d5146dc7784-c3038e718a19fc596f7b1baba0f83d5146dc7784
 
git://xenbits.xen.org/osstest/linux-firmware.git#c530a75c1e6a472b0eb9558310b518f0dfcd8860-c530a75c1e6a472b0eb9558310b518f0dfcd8860
 
git://xenbits.xen.org/qemu-xen-traditional.git#3d273dd05e51e5a1ffba3d98c7437ee84e8f8764-3d273dd05e51e5a1ffba3d98c7437ee84e8f8764
 git://xenbits.xen.org/qemu-xen.git#ea6d3cd1ed79d824e605a70c3626bc4\
 37c386260-ea6d3cd1ed79d824e605a70c3626bc437c386260 
git://xenbits.xen.org/xen.git#8ef6345ef557cc2c47298217635a3088eaa59893-884ef07f4f66b9d12fc4811047db95ba649db85c
Loaded 5001 nodes in revision graph
Searching for test results:
 155451 [host=godello1]
 155493 pass c3038e718a19fc596f7b1baba0f83d5146dc7784 
c530a75c1e6a472b0eb9558310b518f0dfcd8860 
3d273dd05e51e5a1ffba3d98c7437ee84e8f8764 
ea6d3cd1ed79d824e605a70c3626bc437c386260 
8ef6345ef557cc2c47298217635a3088eaa59893
 155510 [host=chardonnay0]
 155532 [host=elbling1]
 155549 [host=albana1]
 155600 [host=pinot1]
 155630 [host=rimava1]
 155712 [host=albana0]
 155759 [host=godello1]
 155788 [host=fiano1]
 155810 []
 155832 fail c3038e718a19fc596f7b1baba0f83d5146dc7784 
c530a75c1e6a472b0eb9558310b518f0dfcd8860 
3d273dd05e51e5a1ffba3d98c7437ee84e8f8764 
ea6d3cd1ed79d824e605a70c3626bc437c386260 
884ef07f4f66b9d12fc4811047db95ba649db85c
 155862 pass c3038e718a19fc596f7b1baba0f83d5146dc7784 
c530a75c1e6a472b0eb9558310b518f0dfcd8860 
3d273dd05e51e5a1ffba3d98c7437ee84e8f8764 
ea6d3cd1ed79d824e605a70c3626bc437c386260 
8ef6345ef557cc2c47298217635a3088eaa59893
 155867 blocked c3038e718a19fc596f7b1baba0f83d5146dc7784 
c530a75c1e6a472b0eb9558310b518f0dfcd8860 
3d273dd05e51e5a1ffba3d98c7437ee84e8f8764 
ea6d3cd1ed79d824e605a70c3626bc437c386260 
884ef07f4f66b9d12fc4811047db95ba649db85c
 155868 blocked c3038e718a19fc596f7b1baba0f83d5146dc7784 
c530a75c1e6a472b0eb9558310b518f0dfcd8860 
3d273dd05e51e5a1ffba3d98c7437ee84e8f8764 
ea6d3cd1ed79d824e605a70c3626bc437c386260 
884ef07f4f66b9d12fc4811047db95ba649db85c
 155871 blocked c3038e718a19fc596f7b1baba0f83d5146dc7784 
c530a75c1e6a472b0eb9558310b518f0dfcd8860 
3d273dd05e51e5a1ffba3d98c7437ee84e8f8764 
ea6d3cd1ed79d824e605a70c3626bc437c386260 
884ef07f4f66b9d12fc4811047db95ba649db85c
 155872 blocked c3038e718a19fc596f7b1baba0f83d5146dc7784 
c530a75c1e6a472b0eb9558310b518f0dfcd8860 
3d273dd05e51e5a1ffba3d98c7437ee84e8f8764 
ea6d3cd1ed79d824e605a70c3626bc437c386260 
884ef07f4f66b9d12fc4811047db95ba649db85c
 155873 blocked c3038e718a19fc596f7b1baba0f83d5146dc7784 
c530a75c1e6a472b0eb9558310b518f0dfcd8860 
3d273dd05e51e5a1ffba3d98c7437ee84e8f8764 
ea6d3cd1ed79d824e605a70c3626bc437c386260 
884ef07f4f66b9d12fc4811047db95ba649db85c
Searching for interesting versions
 Result found: flight 155493 (pass), for basis pass
 For basis failure, parent search stopping at 
c3038e718a19fc596f7b1baba0f83d5146dc7784 
c530a75c1e6a472b0eb9558310b518f0dfcd8860 
3d273dd05e51e5a1ffba3d98c7437ee84e8f8764 
ea6d3cd1ed79d824e605a70c3626bc437c386260 
8ef6345ef557cc2c47298217635a3088eaa59893, results HASH(0x55cd8cf5c8e0) 
HASH(0x55cd8cf562a0) Result found: flight 155832 (fail), for basis failure (at 
ancestor ~439)
 Repro found: flight 155862 (pass), for basis pass
Need to reproduce basis failure (fail); had 1 already.
Should test c3038e718a19fc596f7b1baba0f83d5146dc7784 
c530a75c1e6a472b0eb9558310b518f0dfcd8860 
3d273dd05e51e5a1ffba3d98c7437ee84e8f8764 
ea6d3cd1ed79d824e605a70c3626bc437c386260 
884ef07f4f66b9d12fc4811047db95ba649db85c.
Revision graph left in 
/home/logs/results/bisect/xen-unstable/test-amd64-amd64-xl-pvshim.debian-install.{dot,ps,png,html,svg}.
Populating 155874...
Need 155874.test-amd64-amd64-xl-pvshim (like 155832)
Creating 155874.test-amd64-amd64-xl-pvshim (copying from 155832)
Need 155874.build-amd64 (like 155832)
 revision_qemu=3d273dd05e51e5a1ffba3d98c7437ee84e8f8764
 revision_qemuu=ea6d3cd1ed79d824e605a70c3626bc437c386260
 revision_xen=884ef07f4f66b9d12fc4811047db95ba649db85c
Searching for build-amd64 (like 155832) to reuse...
Creating 155874.build-amd64 (copying from 155832)
Need 155874.build-amd64-pvops (like 155832)
 revision_linux=c3038e718a19fc596f7b1baba0f83d5146dc7784
 revision_linuxfirmware=c530a75c1e6a472b0eb9558310b518f0dfcd8860
Searching for build-amd64-pvops (like 155832) to reuse...
Can reuse build-kern 155839.build-amd64-pvops.
Already created build-amd64
Checking for flail (since 155493)...

*** Flailing - >=5 identical flights to no useful effect ***
  Bisector is flailing: >=5 identical flights generated.
  Problem occurs when attempting to test this revision:
   c3038e718a19fc596f7b1baba0f83d5146dc7784 
c530a75c1e6a472b0eb9558310b518f0dfcd8860 
3d273dd05e51e5a1ffba3d98c7437ee84e8f8764 
ea6d3cd1ed79d824e605a70c3626bc437c386260 
884ef07f4f66b9d12fc4811047db95ba649db85c
  
  Identical previous flights on this branch:
   155873  started 2020-10-15 19:06:18 Z  blessed real-bisect
   155872  started 2020-10-15 18:47:49 Z  blessed real-bisect
   155871  started 2020-10-15 18:25:55 Z  blessed real-bisect
   155868  started 2020-10-15 18:00:35 Z  blessed real-bisect
   155867  started 2020-10-15 17:39:56 Z  blessed real-bisect
   155874  just generated