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I have two services like nano.service and micro.service which are copied in to /etc/systemd/system folders. Micro.service is depending on nano.service. Binaries of these files are stored in /usr/sbin folder.

When am running both simultaneously, i have no issues. But if i stop my nano.service forcefully by giving command sudo systemctl stop nano.service and check status of both services then it says that

"sudo systemctl status nano.service"

Active: inactive(dead) Process : 19960 execStart=/usr/sbin/nano (core=killed, signal=TERM) Main PID: 19960 (core=killed, signal=TERM)

"sudo systemctl status micro.service"

Active: failed (Result: core-dump) Process : 19960 execStart=/usr/sbin/micro (core=dumped, signal=SEGV) Main PID: 19960 (core=dumped, signal=SEGV)

Which means i stop first service forcefully then i receive segmentation fault in other service. But when i run binaries and i dont see any SEGV in second binary after killing first binary. Only in service i observe this issue. Also in my code i wrote error handling properly which handles both SIGTERM and SIGSEGV signals.

nano.service

[Unit]

Description=nano service

After=rpcbind.service

After=syslog.service

After=network.target

After=network-online.target

Wants=dep.service

After=dep.service

Wants=dev-tpm0.device

After=dev-tpm0.device

[Service]

User=system

Type=simple

ExecStart=/usr/sbin/nano

Environment="LD_LIBRARY_PATH=/usr/local/lib/"

Restart=always

[Install]

WantedBy=multi-user.target


micro.service

[Unit]

Description=micro service

After=network-online.target

Wants=network-online.target

Requires=nano.service

After=nano.service

After=rpcbind.service

[Service]

User=system

Type=simple

Environment="CONFIG=/etc/mciro.config" "LD_LIBRARY_PATH=/usr/local/lib"

EnvironmentFile=/etc/environment

Restart=always

ExecStart="/usr/sbin/micro"

[Install]

WantedBy=multi-user.target

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