This article explains an issue where SRX1500 reboots constantly due to Linux "watchdogd" getting struck.

• The device reboots unexpectedly and frequently. You can see SSD failure logs in the hostlogs messages as shown below:

SSD failure detected, system is going to reboot!!
2025-01-08T10:50:56.831325+07:00 SRX rsyslogd: -- MARK --
2025-01-08T11:03:01.150239+07:00 SRX rsyslogd: [origin software="rsyslogd" swVersion="7.4.4" x-pid="5276" x-info="http://www.rsyslog.com"] rsyslogd was HUPed
2025-01-08T11:30:57.031489+07:00 SRX rsyslogd: -- MARK --
2025-01-08T11:50:57.132341+07:00 SRX rsyslogd: -- MARK --
2025-01-08T12:10:57.233097+07:00 SRX rsyslogd: -- MARK --
2025-01-08T12:12:01.338011+07:00 SRX rsyslogd: [origin software="rsyslogd" swVersion="7.4.4" x-pid="5276" x-info="http://www.rsyslog.com"] rsyslogd was HUPed
2025-01-08T12:30:57.332334+07:00 SRX rsyslogd: -- MARK --
2025-01-08T12:50:57.433339+07:00 SRX rsyslogd: -- MARK --
2025-01-08T13:10:57.533825+07:00 SRX rsyslogd: -- MARK --
2025-01-08T13:18:01.114926+07:00 SRX rsyslogd: [origin software="rsyslogd" swVersion="7.4.4" x-pid="5276" x-info="http://www.rsyslog.com"] rsyslogd was HUPed
2025-01-08T13:30:57.633826+07:00 SRX rsyslogd: -- MARK --
SSD failure detected, system is going to reboot

This issue is reported in PR1845143 and has been fixed in the following junOS releases:

22.4R3-S6

23.2R2-S3

23.4R2-S4

24.2R2

24.4R1

24.4R2

25.1R1

Workaround:

• You can stop cpld_watchdog from Linux using as shown below:

srx@user:~ # vhclient -s
srx@user-node:~# cd /usr/sbin
srx@user-node:/usr/sbin# cp watchdogd watchdogd_copy
srx@user-node:/usr/sbin# rm watchdogd

srx@user-node:/usr/sbin# ps -x | grep watchdogd
Warning: bad ps syntax, perhaps a bogus '-'?
13284 ? Ss 0:00 /usr/sbin/watchdogd
13547 pts/0 S+ 0:00 grep watchdogd

srx@user-node:/usr/sbin# kill -15 13284

• Check watchdogd has been stopped:

srx@user-node:/usr/sbin# ps -x | grep watchdogd
Warning: bad ps syntax, perhaps a bogus '-'?
13557 pts/0 S+ 0:00 grep watchdogd

2025-01-17 : Article Created

2025-01-21 : Minor edits