tgkill03 from ubuntu_ltp_syscalls failed with Bionic GCP Edge

[Po-Hsu Lin]

tgkill03.c:96: FAIL: Defunct tid should have failed with ESRCH: SUCCESS

<<<test_start>>>
tag=tgkill03 stime=1559631611
cmdline="tgkill03"
contacts=""
analysis=exit
<<<test_output>>>
incrementing stop
tst_test.c:1111: INFO: Timeout per run is 0h 05m 00s
tgkill03.c:92: PASS: Invalid tgid failed as expected: EINVAL
tgkill03.c:92: PASS: Invalid tid failed as expected: EINVAL
tgkill03.c:92: PASS: Invalid signal failed as expected: EINVAL
tgkill03.c:96: FAIL: Defunct tid should have failed with ESRCH: SUCCESS
tgkill03.c:92: PASS: Defunct tgid failed as expected: ESRCH
tgkill03.c:99: PASS: Valid tgkill call succeeded

Summary:
passed 5
failed 1
skipped 0
warnings 0
<<<execution_status>>>
initiation_status="ok"
duration=0 termination_type=exited termination_id=1 corefile=no
cutime=0 cstime=0
<<<test_end>>>

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: linux-image-4.18.0-1011-gcp 4.18.0-1011.12~18.04.1
ProcVersionSignature: Ubuntu 4.18.0-1011.12~18.04.1-gcp 4.18.20
Uname: Linux 4.18.0-1011-gcp x86_64
ApportVersion: 2.20.9-0ubuntu7.6
Architecture: amd64
Date: Tue Jun 4 07:00:26 2019
SourcePackage: linux-signed-gcp-edge
UpgradeStatus: No upgrade log present (probably fresh install)