[linux-linus bisection] 109175: testing test-amd64-amd64-pair

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

branch xen-unstable
xenbranch xen-unstable
job test-amd64-amd64-pair
testid xen-boot/src_host

Tree: linux git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.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

For bisection revision-tuple graph see:
   
http://logs.test-lab.xenproject.org/osstest/results/bisect/linux-linus/test-amd64-amd64-pair.xen-boot--src_host.html
Revision IDs in each graph node refer, respectively, to the Trees above.

----------------------------------------
Running cs-bisection-step 
--graph-out=/home/logs/results/bisect/linux-linus/test-amd64-amd64-pair.xen-boot--src_host
 --summary-out=tmp/109175.bisection-summary --basis-template=59254 
--blessings=real,real-bisect --flight=109175 linux-linus test-amd64-amd64-pair 
xen-boot/src_host
Searching for failure / basis pass:
 109127 fail [dst_host=nobling0,src_host=nobling1] / 108124 
[dst_host=fiano1,src_host=fiano0] 108093 [dst_host=baroque0,src_host=baroque1] 
108051 [dst_host=godello1,src_host=godello0] 108022 
[dst_host=fiano0,src_host=fiano1] 107980 
[dst_host=huxelrebe1,src_host=huxelrebe0] 107925 
[dst_host=godello0,src_host=godello1] 107819 
[dst_host=rimava1,src_host=rimava0] 107753 [dst_host=rimava0,src_host=rimava1] 
107710 [dst_host=italia0,src_host=italia1] 107660 
[dst_host=pinot0,src_host=pinot1] 107638 [dst_host=elbling1,src_host=elbling0] 
107630 [dst_host=huxelrebe0,src_host=huxelrebe1] 107621 
[dst_host=nocera1,src_host=nocera0] 107616 
[dst_host=baroque1,src_host=baroque0] 107607 
[dst_host=elbling0,src_host=elbling1] 107592 
[dst_host=nocera0,src_host=nocera1] 107579 [dst_host=pinot1,src_host=pinot0] 
107571 [dst_host=baroque0,src_host=baroque1] 107555 
[dst_host=italia1,src_host=italia0] 107529 
[dst_host=chardonnay0,src_host=chardonnay1] 107497 
[dst_host=fiano1,src_host=fiano0] 107486 [dst_host=godello0,src_host=godello1] 
107474 [dst_host=italia0,src_host=italia1] 107469 
[dst_host=italia0,src_host=italia1] 107462 
[dst_host=huxelrebe1,src_host=huxelrebe0] 107452 
[dst_host=elbling1,src_host=elbling0] 107443 
[dst_host=baroque1,src_host=baroque0] 107428 
[dst_host=huxelrebe0,src_host=huxelrebe1] 107406 
[dst_host=italia1,src_host=italia0] 107383 
[dst_host=elbling0,src_host=elbling1] 107367 
[dst_host=baroque0,src_host=baroque1] 107350 [dst_host=pinot1,src_host=pinot0] 
107253 [dst_host=fiano1,src_host=fiano0] 107221 
[dst_host=godello1,src_host=godello0] 107206 
[dst_host=rimava0,src_host=rimava1] 107169 [dst_host=rimava0,src_host=rimava1] 
107159 [dst_host=chardonnay1,src_host=chardonnay0] 107142 
[dst_host=godello0,src_host=godello1] 107123 
[dst_host=chardonnay0,src_host=chardonnay1] 107106 
[dst_host=fiano0,src_host=fiano1] 107090 [dst_host=italia0,src_host=italia1] 
107075 [dst_host=huxelrebe1,src_host=huxelrebe0] 107053 
[dst_host=pinot0,src_host=pinot1] 107024 [dst_host=elbling1,src_host=elbling0] 
107010 [dst_host=baroque1,src_host=baroque0] 106998 
[dst_host=godello1,src_host=godello0] 106987 
[dst_host=italia1,src_host=italia0] 106976 
[dst_host=huxelrebe0,src_host=huxelrebe1] 106946 
[dst_host=elbling0,src_host=elbling1] 106939 
[dst_host=baroque0,src_host=baroque1] 106930 [dst_host=pinot1,src_host=pinot0] 
106927 [dst_host=nocera1,src_host=nocera0] 106926 
[dst_host=rimava1,src_host=rimava0] 106922 
[dst_host=godello0,src_host=godello1] 106919 
[dst_host=chardonnay1,src_host=chardonnay0] 106902 
[dst_host=nocera0,src_host=nocera1] 106886 [dst_host=rimava0,src_host=rimava1] 
106857 [dst_host=chardonnay0,src_host=chardonnay1] 106825 
[dst_host=italia0,src_host=italia1] 106806 
[dst_host=huxelrebe1,src_host=huxelrebe0] 106799 
[dst_host=godello1,src_host=godello0] 106788 
[dst_host=elbling1,src_host=elbling0] 106761 
[dst_host=italia1,src_host=italia0] 106752 [dst_host=pinot1,src_host=pinot0] 
106744 [dst_host=baroque1,src_host=baroque0] 106729 
[dst_host=huxelrebe0,src_host=huxelrebe1] 106714 
[dst_host=fiano1,src_host=fiano0] 106699 [dst_host=godello0,src_host=godello1] 
106674 [dst_host=godello1,src_host=godello0] 106660 
[dst_host=baroque0,src_host=baroque1] 106636 
[dst_host=italia0,src_host=italia1] 106630 
[dst_host=chardonnay1,src_host=chardonnay0] 106625 
[dst_host=huxelrebe1,src_host=huxelrebe0] 106623 
[dst_host=nocera1,src_host=nocera0] 106600 
[dst_host=elbling1,src_host=elbling0] 106597 
[dst_host=elbling0,src_host=elbling1] 106591 
[dst_host=nocera0,src_host=nocera1] 106589 [dst_host=rimava0,src_host=rimava1] 
106570 [dst_host=pinot0,src_host=pinot1] 106537 
[dst_host=fiano1,src_host=fiano0] 106520 [dst_host=baroque1,src_host=baroque0] 
106509 [dst_host=pinot1,src_host=pinot0] 106486 
[dst_host=rimava1,src_host=rimava0] 106480 
[dst_host=godello1,src_host=godello0] 106478 
[dst_host=baroque0,src_host=baroque1] 106471 
[dst_host=italia0,src_host=italia1] 106457 
[dst_host=huxelrebe1,src_host=huxelrebe0] 106406 
[dst_host=elbling1,src_host=elbling0] 106388 
[dst_host=rimava0,src_host=rimava1] 106375 
[dst_host=elbling0,src_host=elbling1] 106354 [dst_host=pinot0,src_host=pinot1] 
106312 [dst_host=fiano0,src_host=fiano1] 106285 
[dst_host=nocera1,src_host=nocera0] 106265 [dst_host=italia1,src_host=italia0] 
106224 [dst_host=fiano1,src_host=fiano0] 106209 
[dst_host=nocera0,src_host=nocera1] 106190 
[dst_host=huxelrebe0,src_host=huxelrebe1] 106172 
[dst_host=godello0,src_host=godello1] 106152 [dst_host=pinot1,src_host=pinot0] 
106139 [dst_host=godello1,src_host=godello0] 106124 
[dst_host=italia0,src_host=italia1] 106083 
[dst_host=huxelrebe1,src_host=huxelrebe0] 105984 
[dst_host=baroque0,src_host=baroque1] 105960 
[dst_host=rimava0,src_host=rimava1] 105941 
[dst_host=chardonnay1,src_host=chardonnay0] 105929 
[dst_host=chardonnay0,src_host=chardonnay1] 105922 
[dst_host=pinot0,src_host=pinot1] 105905 [dst_host=elbling1,src_host=elbling0] 
105901 [dst_host=huxelrebe0,src_host=huxelrebe1] 105898 
[dst_host=godello0,src_host=godello1] 105897 
[dst_host=godello1,src_host=godello0] 105893 [dst_host=fiano0,src_host=fiano1] 
105867 [dst_host=elbling0,src_host=elbling1] 105845 
[dst_host=fiano1,src_host=fiano0] 105824 [dst_host=italia0,src_host=italia1] 
105807 [dst_host=pinot1,src_host=pinot0] 105803 
[dst_host=nocera1,src_host=nocera0] 105795 
[dst_host=baroque1,src_host=baroque0] 105778 
[dst_host=chardonnay1,src_host=chardonnay0] 105767 
[dst_host=huxelrebe1,src_host=huxelrebe0] 105757 
[dst_host=rimava1,src_host=rimava0] 105753 [dst_host=nocera0,src_host=nocera1] 
105748 [dst_host=italia1,src_host=italia0] 105744 
[dst_host=baroque0,src_host=baroque1] 105736 
[dst_host=rimava0,src_host=rimava1] 105729 
[dst_host=chardonnay0,src_host=chardonnay1] 105713 
[dst_host=pinot0,src_host=pinot1] 105687 [dst_host=godello0,src_host=godello1] 
105672 [dst_host=huxelrebe0,src_host=huxelrebe1] 105655 
[dst_host=godello1,src_host=godello0] 105641 
[dst_host=elbling1,src_host=elbling0] 105625 
[dst_host=elbling1,src_host=elbling0] 105616 ok.
Failure / basis pass flights: 109127 / 105616
(tree with no url: minios)
(tree with no url: ovmf)
(tree with no url: seabios)
Tree: linux git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.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 13e0988140374123bead1dd27c287354cb95108e 
c530a75c1e6a472b0eb9558310b518f0dfcd8860 
8051789e982499050680a26febeada7467e18a8d 
e97832ec6b2a7ddd48b8e6d1d848ffdfee6a31c7 
0a5370ee1f9808fbb16bb03d7f349921cf73a2d4
Basis pass 926af6273fc683cd98cd0ce7bf0d04a02eed6742 
c530a75c1e6a472b0eb9558310b518f0dfcd8860 
b669e922b37b8957248798a5eb7aa96a666cd3fe 
5cd2e1739763915e6b4c247eef71f948dc808bd5 
2733b800c9a2086d46379d3eb3f480eb5fd433ea
Generating revisions with ./adhoc-revtuple-generator  
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git#926af6273fc683cd98cd0ce7bf0d04a02eed6742-13e0988140374123bead1dd27c287354cb95108e
 
git://xenbits.xen.org/osstest/linux-firmware.git#c530a75c1e6a472b0eb9558310b518f0dfcd8860-c530a75c1e6a472b0eb9558310b518f0dfcd8860
 
git://xenbits.xen.org/qemu-xen-traditional.git#b669e922b37b8957248798a5eb7aa96a666cd3fe-8051789e982499050680a26febeada7467e18a8d
 
git://xenbits.xen.org/qemu-xen.git#5cd2e1739763915e6b4c247eef71f948dc808bd5-e97832ec6b2a7ddd48b8e6d1d848ffdfee6a31c7
 
git://xenbits.xen.org/xen.git#2733b800c9a2086d46379d3eb3f480eb5fd433ea-0a5370ee1f9808fbb16bb03d7f349921cf73a2d4
adhoc-revtuple-generator: tree discontiguous: linux-2.6
Loaded 7001 nodes in revision graph
Searching for test results:
 105588 [dst_host=elbling0,src_host=elbling1]
 105595 [dst_host=elbling0,src_host=elbling1]
 105592 [dst_host=elbling0,src_host=elbling1]
 105594 [dst_host=elbling0,src_host=elbling1]
 105606 [dst_host=fiano0,src_host=fiano1]
 105616 pass 926af6273fc683cd98cd0ce7bf0d04a02eed6742 
c530a75c1e6a472b0eb9558310b518f0dfcd8860 
b669e922b37b8957248798a5eb7aa96a666cd3fe 
5cd2e1739763915e6b4c247eef71f948dc808bd5 
2733b800c9a2086d46379d3eb3f480eb5fd433ea
 105641 [dst_host=elbling1,src_host=elbling0]
 105625 [dst_host=elbling1,src_host=elbling0]
 105655 [dst_host=godello1,src_host=godello0]
 105672 [dst_host=huxelrebe0,src_host=huxelrebe1]
 105687 [dst_host=godello0,src_host=godello1]
 105713 [dst_host=pinot0,src_host=pinot1]
 105729 [dst_host=chardonnay0,src_host=chardonnay1]
 105757 [dst_host=rimava1,src_host=rimava0]
 105736 [dst_host=rimava0,src_host=rimava1]
 105744 [dst_host=baroque0,src_host=baroque1]
 105807 [dst_host=pinot1,src_host=pinot0]
 105748 [dst_host=italia1,src_host=italia0]
 105778 [dst_host=chardonnay1,src_host=chardonnay0]
 105753 [dst_host=nocera0,src_host=nocera1]
 105767 [dst_host=huxelrebe1,src_host=huxelrebe0]
 105795 [dst_host=baroque1,src_host=baroque0]
 105803 [dst_host=nocera1,src_host=nocera0]
 105845 [dst_host=fiano1,src_host=fiano0]
 105824 [dst_host=italia0,src_host=italia1]
 105893 [dst_host=fiano0,src_host=fiano1]
 105867 [dst_host=elbling0,src_host=elbling1]
 105897 [dst_host=godello1,src_host=godello0]
 105898 [dst_host=godello0,src_host=godello1]
 105901 [dst_host=huxelrebe0,src_host=huxelrebe1]
 105905 [dst_host=elbling1,src_host=elbling0]
 105922 [dst_host=pinot0,src_host=pinot1]
 105929 [dst_host=chardonnay0,src_host=chardonnay1]
 105941 [dst_host=chardonnay1,src_host=chardonnay0]
 105984 [dst_host=baroque0,src_host=baroque1]
 105960 [dst_host=rimava0,src_host=rimava1]
 106083 [dst_host=huxelrebe1,src_host=huxelrebe0]
 106152 [dst_host=pinot1,src_host=pinot0]
 106124 [dst_host=italia0,src_host=italia1]
 106139 [dst_host=godello1,src_host=godello0]
 106172 [dst_host=godello0,src_host=godello1]
 106190 [dst_host=huxelrebe0,src_host=huxelrebe1]
 106209 [dst_host=nocera0,src_host=nocera1]
 106265 [dst_host=italia1,src_host=italia0]
 106224 [dst_host=fiano1,src_host=fiano0]
 106285 [dst_host=nocera1,src_host=nocera0]
 106312 [dst_host=fiano0,src_host=fiano1]
 106354 [dst_host=pinot0,src_host=pinot1]
 106375 [dst_host=elbling0,src_host=elbling1]
 106388 [dst_host=rimava0,src_host=rimava1]
 106406 [dst_host=elbling1,src_host=elbling0]
 106457 [dst_host=huxelrebe1,src_host=huxelrebe0]
 106480 [dst_host=godello1,src_host=godello0]
 106471 [dst_host=italia0,src_host=italia1]
 106478 [dst_host=baroque0,src_host=baroque1]
 106486 [dst_host=rimava1,src_host=rimava0]
 106509 [dst_host=pinot1,src_host=pinot0]
 106520 [dst_host=baroque1,src_host=baroque0]
 106589 [dst_host=rimava0,src_host=rimava1]
 106537 [dst_host=fiano1,src_host=fiano0]
 106570 [dst_host=pinot0,src_host=pinot1]
 106591 [dst_host=nocera0,src_host=nocera1]
 106600 [dst_host=elbling1,src_host=elbling0]
 106597 [dst_host=elbling0,src_host=elbling1]
 106609 []
 106625 [dst_host=huxelrebe1,src_host=huxelrebe0]
 106623 [dst_host=nocera1,src_host=nocera0]
 106630 [dst_host=chardonnay1,src_host=chardonnay0]
 106636 [dst_host=italia0,src_host=italia1]
 106660 [dst_host=baroque0,src_host=baroque1]
 106699 [dst_host=godello0,src_host=godello1]
 106674 [dst_host=godello1,src_host=godello0]
 106714 [dst_host=fiano1,src_host=fiano0]
 106729 [dst_host=huxelrebe0,src_host=huxelrebe1]
 106744 [dst_host=baroque1,src_host=baroque0]
 106752 [dst_host=pinot1,src_host=pinot0]
 106761 [dst_host=italia1,src_host=italia0]
 106806 [dst_host=huxelrebe1,src_host=huxelrebe0]
 106799 [dst_host=godello1,src_host=godello0]
 106788 [dst_host=elbling1,src_host=elbling0]
 106825 [dst_host=italia0,src_host=italia1]
 106857 [dst_host=chardonnay0,src_host=chardonnay1]
 106946 [dst_host=elbling0,src_host=elbling1]
 106902 [dst_host=nocera0,src_host=nocera1]
 106930 [dst_host=pinot1,src_host=pinot0]
 106886 [dst_host=rimava0,src_host=rimava1]
 106919 [dst_host=chardonnay1,src_host=chardonnay0]
 106922 [dst_host=godello0,src_host=godello1]
 106926 [dst_host=rimava1,src_host=rimava0]
 106927 [dst_host=nocera1,src_host=nocera0]
 106939 [dst_host=baroque0,src_host=baroque1]
 106976 [dst_host=huxelrebe0,src_host=huxelrebe1]
 106998 [dst_host=godello1,src_host=godello0]
 106987 [dst_host=italia1,src_host=italia0]
 107010 [dst_host=baroque1,src_host=baroque0]
 107053 [dst_host=pinot0,src_host=pinot1]
 107024 [dst_host=elbling1,src_host=elbling0]
 107075 [dst_host=huxelrebe1,src_host=huxelrebe0]
 107106 [dst_host=fiano0,src_host=fiano1]
 107090 [dst_host=italia0,src_host=italia1]
 107169 [dst_host=rimava0,src_host=rimava1]
 107123 [dst_host=chardonnay0,src_host=chardonnay1]
 107159 [dst_host=chardonnay1,src_host=chardonnay0]
 107142 [dst_host=godello0,src_host=godello1]
 107206 [dst_host=rimava0,src_host=rimava1]
 107221 [dst_host=godello1,src_host=godello0]
 107253 [dst_host=fiano1,src_host=fiano0]
 107367 [dst_host=baroque0,src_host=baroque1]
 107406 [dst_host=italia1,src_host=italia0]
 107350 [dst_host=pinot1,src_host=pinot0]
 107383 [dst_host=elbling0,src_host=elbling1]
 107428 [dst_host=huxelrebe0,src_host=huxelrebe1]
 107443 [dst_host=baroque1,src_host=baroque0]
 107452 [dst_host=elbling1,src_host=elbling0]
 107462 [dst_host=huxelrebe1,src_host=huxelrebe0]
 107469 [dst_host=italia0,src_host=italia1]
 107476 [dst_host=italia0,src_host=italia1]
 107478 [dst_host=italia0,src_host=italia1]
 107474 [dst_host=italia0,src_host=italia1]
 107486 [dst_host=godello0,src_host=godello1]
 107497 [dst_host=fiano1,src_host=fiano0]
 107529 [dst_host=chardonnay0,src_host=chardonnay1]
 107555 [dst_host=italia1,src_host=italia0]
 107571 [dst_host=baroque0,src_host=baroque1]
 107621 [dst_host=nocera1,src_host=nocera0]
 107579 [dst_host=pinot1,src_host=pinot0]
 107607 [dst_host=elbling0,src_host=elbling1]
 107616 [dst_host=baroque1,src_host=baroque0]
 107592 [dst_host=nocera0,src_host=nocera1]
 107630 [dst_host=huxelrebe0,src_host=huxelrebe1]
 107638 [dst_host=elbling1,src_host=elbling0]
 107660 [dst_host=pinot0,src_host=pinot1]
 107710 [dst_host=italia0,src_host=italia1]
 107753 [dst_host=rimava0,src_host=rimava1]
 107819 [dst_host=rimava1,src_host=rimava0]
 107925 [dst_host=godello0,src_host=godello1]
 107980 [dst_host=huxelrebe1,src_host=huxelrebe0]
 108022 [dst_host=fiano0,src_host=fiano1]
 108051 [dst_host=godello1,src_host=godello0]
 108093 [dst_host=baroque0,src_host=baroque1]
 108160 fail irrelevant
 108124 [dst_host=fiano1,src_host=fiano0]
 108210 fail irrelevant
 109007 []
 109048 fail irrelevant
 109075 fail irrelevant
 109172 pass 926af6273fc683cd98cd0ce7bf0d04a02eed6742 
c530a75c1e6a472b0eb9558310b518f0dfcd8860 
b669e922b37b8957248798a5eb7aa96a666cd3fe 
5cd2e1739763915e6b4c247eef71f948dc808bd5 
2733b800c9a2086d46379d3eb3f480eb5fd433ea
 109105 fail 13e0988140374123bead1dd27c287354cb95108e 
c530a75c1e6a472b0eb9558310b518f0dfcd8860 
8051789e982499050680a26febeada7467e18a8d 
e97832ec6b2a7ddd48b8e6d1d848ffdfee6a31c7 
0a5370ee1f9808fbb16bb03d7f349921cf73a2d4
 109127 fail 13e0988140374123bead1dd27c287354cb95108e 
c530a75c1e6a472b0eb9558310b518f0dfcd8860 
8051789e982499050680a26febeada7467e18a8d 
e97832ec6b2a7ddd48b8e6d1d848ffdfee6a31c7 
0a5370ee1f9808fbb16bb03d7f349921cf73a2d4
Searching for interesting versions
 Result found: flight 105616 (pass), for basis pass
 Result found: flight 109105 (fail), for basis failure
 Repro found: flight 109172 (pass), for basis pass
Need to reproduce basis failure (fail); had 1 already.
Should test 13e0988140374123bead1dd27c287354cb95108e 
c530a75c1e6a472b0eb9558310b518f0dfcd8860 
8051789e982499050680a26febeada7467e18a8d 
e97832ec6b2a7ddd48b8e6d1d848ffdfee6a31c7 
0a5370ee1f9808fbb16bb03d7f349921cf73a2d4.
dot: graph is too large for cairo-renderer bitmaps. Scaling by 0.827721 to fit
pnmtopng: 65 colors found
Revision graph left in 
/home/logs/results/bisect/linux-linus/test-amd64-amd64-pair.xen-boot--src_host.{dot,ps,png,html,svg}.
Populating 109175...
Need 109175.test-amd64-amd64-pair (like 109127)
Creating 109175.test-amd64-amd64-pair (copying from 109127)
Need 109175.build-amd64 (like 109127)
 revision_qemu=8051789e982499050680a26febeada7467e18a8d
 revision_qemuu=e97832ec6b2a7ddd48b8e6d1d848ffdfee6a31c7
 revision_xen=0a5370ee1f9808fbb16bb03d7f349921cf73a2d4
Searching for 109175.build-amd64 to reuse...
Can reuse build 107859.build-amd64.
DB confict (err=7 state=40001): DBD::Pg::st execute failed: ERROR:  could not 
serialize access due to read/write dependencies among transactions
DETAIL:  Reason code: Canceled on identification as a pivot, during write.
HINT:  The transaction might succeed if retried. [for Statement "        UPDATE 
runvars SET val=?
            WHERE  flight=? AND job=? AND name=?
" with ParamValues: 1='107859.build-amd64', 2='109175', 
3='test-amd64-amd64-pair', 4='buildjob']
DB conflict (messages above may refer); retrying...
Populating 109175...
Need 109175.test-amd64-amd64-pair (like 109127)
Creating 109175.test-amd64-amd64-pair (copying from 109127)
Need 109175.build-amd64 (like 109127)
 revision_qemu=8051789e982499050680a26febeada7467e18a8d
 revision_qemuu=e97832ec6b2a7ddd48b8e6d1d848ffdfee6a31c7
 revision_xen=0a5370ee1f9808fbb16bb03d7f349921cf73a2d4
Can reuse build 107859.build-amd64.
Need 109175.build-amd64-pvops (like 109127)
 revision_linux=13e0988140374123bead1dd27c287354cb95108e
 revision_linuxfirmware=c530a75c1e6a472b0eb9558310b518f0dfcd8860
Searching for 109175.build-amd64-pvops to reuse...
Can reuse build-kern 109127.build-amd64-pvops.
DB confict (err=7 state=40001): DBD::Pg::st execute failed: ERROR:  could not 
serialize access due to read/write dependencies among transactions
DETAIL:  Reason code: Canceled on identification as a pivot, during write.
HINT:  The transaction might succeed if retried. [for Statement "        UPDATE 
runvars SET val=?
            WHERE  flight=? AND job=? AND name=?
" with ParamValues: 1='109127.build-amd64-pvops', 2='109175', 
3='test-amd64-amd64-pair', 4='kernbuildjob']
DB conflict (messages above may refer); retrying...
Populating 109175...
Need 109175.test-amd64-amd64-pair (like 109127)
Creating 109175.test-amd64-amd64-pair (copying from 109127)
Need 109175.build-amd64 (like 109127)
 revision_qemu=8051789e982499050680a26febeada7467e18a8d
 revision_qemuu=e97832ec6b2a7ddd48b8e6d1d848ffdfee6a31c7
 revision_xen=0a5370ee1f9808fbb16bb03d7f349921cf73a2d4
Can reuse build 107859.build-amd64.
Need 109175.build-amd64-pvops (like 109127)
 revision_linux=13e0988140374123bead1dd27c287354cb95108e
 revision_linuxfirmware=c530a75c1e6a472b0eb9558310b518f0dfcd8860
Can reuse build-kern 109127.build-amd64-pvops.
Need 109175.build-amd64 (like 109127)
 revision_qemu=8051789e982499050680a26febeada7467e18a8d
 revision_qemuu=e97832ec6b2a7ddd48b8e6d1d848ffdfee6a31c7
 revision_xen=0a5370ee1f9808fbb16bb03d7f349921cf73a2d4
Can reuse build 107859.build-amd64.
Checking for flail (since 105616)...
Flight 109175 ready to go.

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