lib/utils kr_memreserve(): fix a ubsan nitpick

32 jobs from ubsan in 27 minutes and 59 seconds (queued for 4 seconds)
Status Job ID Name Coverage
  Build
passed #242457
docker linux amd64
build:asan:linux:amd64

00:01:16

passed #242456
docker linux amd64
build:linux:amd64

00:01:18

passed #242458
docker linux amd64
build:turris:omnia

00:01:14

passed #242459
docker linux amd64 allowed to fail
srpm

00:00:47

 
  Test
passed #242468
docker linux amd64
deckard:linux:amd64

00:01:56

passed #242476
privileged
distro:epel-7

00:02:28

passed #242475
privileged
distro:fedora-29

00:03:09

passed #242467
docker
doc

00:00:52

passed #242465
dind
docker:build

00:02:39

passed #242466
docker linux amd64
installcheck:linux:amd64

00:01:08

passed #242469
docker linux amd64
installcheck:valgrind:linux:amd64

00:02:31

passed #242462
docker
lint:c

00:02:52

passed #242463
docker
lint:clang-scan-build

00:01:12

passed #242461
docker
lint:lua

00:00:44

passed #242460
docker linux amd64
lint:pedantic

00:01:45

passed #242470
docker
osx:build

00:02:31

passed #242472
docker linux amd64
pytests:lint

00:00:49

passed #242473
docker linux amd64
pytests:run

00:02:06

passed #242474
docker linux amd64
respdiff:iter:udp:linux:amd64

00:02:16

passed #242464
docker linux amd64
test:linux:amd64

00:01:03

passed #242471
docker linux amd64
test:linux:amd64:valgrind

00:01:33

 
  Extended
passed #242477
docker linux amd64
pytests:extended

00:03:09

failed #242478
respdiff
respdiff:fwd-tls6-kresd.udp6

00:08:53

failed #242479
respdiff
respdiff:fwd-udp6-kresd.udp6

00:10:50

failed #242483
respdiff
respdiff:fwd-udp6-unbound.tcp6

00:15:22

passed #242484
respdiff
respdiff:fwd-udp6-unbound.tls6

00:21:53

passed #242482
respdiff
respdiff:fwd-udp6-unbound.udp6

00:23:23

failed #242481
respdiff
respdiff:iter.tls6

00:09:52

failed #242480
respdiff
respdiff:iter.udp6

00:14:23

passed #242485
respdiff
resperf:fwd-tls6.udp-asan

00:16:18

passed #242486
respdiff
resperf:fwd-udp6.udp-asan

00:16:48

passed #242487
respdiff
resperf:iter.udp-asan

00:12:18

 
Name Stage Failure
failed
respdiff:fwd-udp6-kresd.udp6 Extended
Running after script...
$ cp -t . respdiff_commitdir/$RESPDIFF_TEST/j* ||:
$ cp -t . respdiff_commitdir/*$RESPDIFF_TEST*.png ||:
Uploading artifacts...
Runtime platform arch=amd64 os=linux pid=39091 revision=4745a6f3 version=11.8.0
./j*: found 11 matching files
./*.png: found 3 matching files
Uploading artifacts to coordinator... ok id=242479 responseStatus=201 Created token=_-9bkdo3
ERROR: Job failed: exit status 1
failed
respdiff:iter.tls6 Extended
Running after script...
$ cp -t . respdiff_commitdir/$RESPDIFF_TEST/j* ||:
$ cp -t . respdiff_commitdir/*$RESPDIFF_TEST*.png ||:
Uploading artifacts...
Runtime platform arch=amd64 os=linux pid=39006 revision=4745a6f3 version=11.8.0
./j*: found 11 matching files
./*.png: found 3 matching files
Uploading artifacts to coordinator... ok id=242481 responseStatus=201 Created token=D7rSvaCj
ERROR: Job failed: exit status 1
failed
respdiff:fwd-tls6-kresd.udp6 Extended
Running after script...
$ cp -t . respdiff_commitdir/$RESPDIFF_TEST/j* ||:
$ cp -t . respdiff_commitdir/*$RESPDIFF_TEST*.png ||:
Uploading artifacts...
Runtime platform arch=amd64 os=linux pid=38921 revision=4745a6f3 version=11.8.0
./j*: found 11 matching files
./*.png: found 3 matching files
Uploading artifacts to coordinator... ok id=242478 responseStatus=201 Created token=yLNgTHgb
ERROR: Job failed: exit status 1
failed
respdiff:iter.udp6 Extended
Running after script...
$ cp -t . respdiff_commitdir/$RESPDIFF_TEST/j* ||:
$ cp -t . respdiff_commitdir/*$RESPDIFF_TEST*.png ||:
Uploading artifacts...
Runtime platform arch=amd64 os=linux pid=39271 revision=4745a6f3 version=11.8.0
./j*: found 11 matching files
./*.png: found 3 matching files
Uploading artifacts to coordinator... ok id=242480 responseStatus=201 Created token=yvw5R2ze
ERROR: Job failed: exit status 1
failed
respdiff:fwd-udp6-unbound.tcp6 Extended
Running after script...
$ cp -t . respdiff_commitdir/$RESPDIFF_TEST/j* ||:
$ cp -t . respdiff_commitdir/*$RESPDIFF_TEST*.png ||:
Uploading artifacts...
Runtime platform arch=amd64 os=linux pid=39349 revision=4745a6f3 version=11.8.0
./j*: found 11 matching files
./*.png: found 3 matching files
Uploading artifacts to coordinator... ok id=242483 responseStatus=201 Created token=pyHvvxfT
ERROR: Job failed: exit status 1