I know systemd is working because when I boot with a USB with puppy, and I chroot the debian partition, I can read logs with journalclt. Everything seems working OK, but the system suddenly gets stucked receiving watchdog events ad infinitum.
I paste the tail of the output:
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[...]
mar 06 19:36:26 DEBIAN-LXDE systemd[1]: ifup@eth0.service: Child 560 belongs to ifup@eth0.service
mar 06 19:36:26 DEBIAN-LXDE systemd[1]: ifup@eth0.service: Main process exited, code=exited, status=0/SUCCESS
mar 06 19:36:26 DEBIAN-LXDE systemd[1]: ifup@eth0.service: Failed to destroy cgroup /system.slice/ifup@eth0.service, ignoring: Device or resource busy
mar 06 19:36:26 DEBIAN-LXDE systemd[1]: ifup@eth0.service: Changed running -> exited
mar 06 19:36:32 DEBIAN-LXDE systemd[1]: systemd-udevd.service: Got notification message from PID 293 (WATCHDOG=1)
mar 06 19:36:44 DEBIAN-LXDE ntpdate[729]: step time server 158.227.98.15 offset 9.571738 sec
mar 06 19:36:44 DEBIAN-LXDE systemd[1]: Time has been changed
mar 06 19:36:44 DEBIAN-LXDE systemd[1]: Set up TFD_TIMER_CANCEL_ON_SET timerfd.
mar 06 19:36:44 DEBIAN-LXDE systemd[1]: Received SIGCHLD from PID 722 (ntpdate).
mar 06 19:36:44 DEBIAN-LXDE systemd[1]: Child 722 (ntpdate) died (code=exited, status=0/SUCCESS)
mar 06 19:36:44 DEBIAN-LXDE systemd[1]: ifup@eth0.service: Child 722 belongs to ifup@eth0.service
mar 06 19:36:44 DEBIAN-LXDE systemd[1]: ifup@eth0.service: cgroup is empty
mar 06 19:36:44 DEBIAN-LXDE systemd[1]: systemd-journald.service: Received EPOLLHUP on stored fd 19 (stored), closing.
mar 06 19:36:44 DEBIAN-LXDE systemd[1]: Got cgroup empty notification for: /system.slice/ifup@eth0.service
mar 06 19:36:44 DEBIAN-LXDE systemd[1]: ifup@eth0.service: cgroup is empty
mar 06 19:37:02 DEBIAN-LXDE systemd[1]: systemd-udevd.service: Got notification message from PID 293 (WATCHDOG=1)
mar 06 19:37:22 DEBIAN-LXDE systemd[1]: systemd-udevd.service: Got notification message from PID 293 (WATCHDOG=1)
mar 06 19:37:42 DEBIAN-LXDE systemd[1]: systemd-udevd.service: Got notification message from PID 293 (WATCHDOG=1)
mar 06 19:38:02 DEBIAN-LXDE systemd[1]: systemd-udevd.service: Got notification message from PID 293 (WATCHDOG=1)
mar 06 19:38:02 DEBIAN-LXDE systemd[1]: systemd-journald.service: Got notification message from PID 237 (WATCHDOG=1)
mar 06 19:38:22 DEBIAN-LXDE systemd[1]: systemd-udevd.service: Got notification message from PID 293 (WATCHDOG=1)
mar 06 19:38:42 DEBIAN-LXDE systemd[1]: systemd-udevd.service: Got notification message from PID 293 (WATCHDOG=1)
mar 06 19:39:02 DEBIAN-LXDE systemd[1]: systemd-udevd.service: Got notification message from PID 293 (WATCHDOG=1)
mar 06 19:39:22 DEBIAN-LXDE systemd[1]: systemd-udevd.service: Got notification message from PID 293 (WATCHDOG=1)
mar 06 19:39:42 DEBIAN-LXDE systemd[1]: systemd-udevd.service: Got notification message from PID 293 (WATCHDOG=1)
mar 06 19:39:42 DEBIAN-LXDE systemd[1]: systemd-journald.service: Got notification message from PID 237 (WATCHDOG=1)
mar 06 19:40:02 DEBIAN-LXDE systemd[1]: systemd-udevd.service: Got notification message from PID 293 (WATCHDOG=1)
mar 06 19:40:22 DEBIAN-LXDE systemd[1]: systemd-udevd.service: Got notification message from PID 293 (WATCHDOG=1)
mar 06 19:40:42 DEBIAN-LXDE systemd[1]: systemd-udevd.service: Got notification message from PID 293 (WATCHDOG=1)
mar 06 19:41:02 DEBIAN-LXDE systemd[1]: systemd-udevd.service: Got notification message from PID 293 (WATCHDOG=1)
mar 06 19:41:02 DEBIAN-LXDE systemd[1]: systemd-journald.service: Got notification message from PID 237 (WATCHDOG=1)
mar 06 19:41:22 DEBIAN-LXDE systemd[1]: systemd-udevd.service: Got notification message from PID 293 (WATCHDOG=1)
mar 06 19:41:42 DEBIAN-LXDE systemd[1]: systemd-udevd.service: Got notification message from PID 293 (WATCHDOG=1)
mar 06 19:42:02 DEBIAN-LXDE systemd[1]: systemd-udevd.service: Got notification message from PID 293 (WATCHDOG=1)
mar 06 19:42:22 DEBIAN-LXDE systemd[1]: systemd-udevd.service: Got notification message from PID 293 (WATCHDOG=1)
mar 06 19:42:42 DEBIAN-LXDE systemd[1]: systemd-udevd.service: Got notification message from PID 293 (WATCHDOG=1)
[...]
And it countinues that way until I rebooted.
Nevertheless the logs in /var/log/ were written few days ago. I thought the problem could be because some usb drive attached but I disconnected all of them and the result is the same. I read a lot in the web but I could't find anyting similar. Only about specific services.
I tried to write a check service as:
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[Unit]
Description=Avisa cuando se arranca el sistema
Requires=network.target
After=network.target
[Service]
Type=simple
RemainAfterExit=no
ExecStart=/usr/bin/mail -s "AVISOOOO" aspidnet@gmail.com
[Install]
WantedBy=default.target
But the mail is never sent.
Any ideas? How could I find out what the problem is?