failing network tests with code coverage enabled in qemu_x86 not failing when run with gdb

[applejax124]

$ ./scripts/sanitycheck --coverage -p qemu_x86 -T tests/net/
JOBS: 4
Cleaning output directory /home/camelot/zephyrproject/zephyr/sanity-out
Building testcase defconfigs...
Filtering test cases...
51 tests selected, 21150 tests discarded due to filters
total complete:    9/  51  17%  failed:    0

qemu_x86                  tests/net/iface/net.iface.no_userspace_allowed     FAILED: unexpected eof
	see: sanity-out/qemu_x86/tests/net/iface/net.iface.no_userspace_allowed/handler.log

total complete:   10/  51  19%  failed:    1

qemu_x86                  tests/net/iface/net.iface.with_userspace           FAILED: unexpected eof
	see: sanity-out/qemu_x86/tests/net/iface/net.iface.with_userspace/handler.log

total complete:   19/  51  37%  failed:    2

qemu_x86                  tests/net/lib/mqtt_packet/net.mqtt.packet          FAILED: handler_crash
	see: sanity-out/qemu_x86/tests/net/lib/mqtt_packet/net.mqtt.packet/handler.log

total complete:   34/  51  66%  failed:    3

qemu_x86                  tests/net/socket/getaddrinfo/net.socket            FAILED: handler_crash
	see: sanity-out/qemu_x86/tests/net/socket/getaddrinfo/net.socket/handler.log

total complete:   35/  51  68%  failed:    4

qemu_x86                  tests/net/socket/getnameinfo/net.socket            FAILED: unexpected eof
	see: sanity-out/qemu_x86/tests/net/socket/getnameinfo/net.socket/handler.log

total complete:   36/  51  70%  failed:    5

qemu_x86                  tests/net/socket/misc/net.socket                   FAILED: handler_crash
	see: sanity-out/qemu_x86/tests/net/socket/misc/net.socket/handler.log

total complete:   37/  51  72%  failed:    6

qemu_x86                  tests/net/socket/net_mgmt/net.socket.mgmt          FAILED: unexpected eof
	see: sanity-out/qemu_x86/tests/net/socket/net_mgmt/net.socket.mgmt/handler.log

total complete:   38/  51  74%  failed:    7

qemu_x86                  tests/net/ptp/clock/net.ptp.clock                  FAILED: timeout
	see: sanity-out/qemu_x86/tests/net/ptp/clock/net.ptp.clock/handler.log

total complete:   39/  51  76%  failed:    8

qemu_x86                  tests/net/socket/register/net.socket.register.tls  FAILED: unexpected eof
	see: sanity-out/qemu_x86/tests/net/socket/register/net.socket.register.tls/handler.log

total complete:   40/  51  78%  failed:    9

qemu_x86                  tests/net/socket/select/net.socket                 FAILED: handler_crash
	see: sanity-out/qemu_x86/tests/net/socket/select/net.socket/handler.log

total complete:   41/  51  80%  failed:   10

qemu_x86                  tests/net/socket/tcp/net.socket.tcp                FAILED: unexpected eof
	see: sanity-out/qemu_x86/tests/net/socket/tcp/net.socket.tcp/handler.log

total complete:   42/  51  82%  failed:   11

qemu_x86                  tests/net/socket/udp/net.socket.udp                FAILED: unexpected eof
	see: sanity-out/qemu_x86/tests/net/socket/udp/net.socket.udp/handler.log

total complete:   47/  51  92%  failed:   12

qemu_x86                  tests/net/utils/net.util                           FAILED: unexpected eof
	see: sanity-out/qemu_x86/tests/net/utils/net.util/handler.log

total complete:   51/  51  100%  failed:   13

Enabling CONFIG_COVERAGE exposes test failures with networking tests under tests/net/. We need these be able to build and run successfully to assess code coverage of the network stack.

Upon further inspection, 2 of these don't seem to fail when run with gdb, but continue to fail when running sanitycheck.

• tests/net/socket/register
• tests/net/lib/mqtt_packet

Reproduce with:
sanitycheck --coverage -p qemu_x86 -T tests/net/

[andrewboie]

This appears to be fixed by #17989