crontab pam_limits.so: failed to map segment from shared object: Canno
Linux 2023/4/24 18:16:23 点击：不统计
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在linux 自定义了crontab 开始执行，过了一阵crontab无法执行
通过查看crontab status 发现问题
命令行运行：
service crond status -l
结果：
Redirecting to /bin/systemctl status -l crond.service
crond.service - Command Scheduler
Loaded: loaded (/usr/lib/systemd/system/crond.service; enabled; vendor preset: enabled)
Active: active (running) since Sun 2023-01-29 16:46:02 CST; 2 months 24 days ago
Main PID: 551 (crond)
CGroup: /system.slice/crond.service
└─551 /usr/sbin/crond -n
Apr 24 17:32:02 C20211215104933 crond[7596]: PAM unable to dlopen(/lib64/security/pam_limits.so): /lib64/security/pam_limits.so: failed to map segment from shared object: Cannot allocate memory
Apr 24 17:32:02 C20211215104933 crond[7596]: PAM adding faulty module: /lib64/security/pam_limits.so
Apr 24 17:32:02 C20211215104933 crond[7596]: PAM unable to dlopen(/lib64/security/pam_env.so): /lib64/security/pam_env.so: failed to map segment from shared object: Cannot allocate memory
Apr 24 17:32:02 C20211215104933 crond[7596]: PAM adding faulty module: /lib64/security/pam_env.so
Apr 24 17:32:02 C20211215104933 crond[7596]: PAM unable to dlopen(/lib64/security/pam_faildelay.so): /lib64/security/pam_faildelay.so: failed to map segment from shared object: Cannot allocate memory
Apr 24 17:32:02 C20211215104933 crond[7596]: PAM adding faulty module: /lib64/security/pam_faildelay.so
Apr 24 17:32:02 C20211215104933 crond[7596]: PAM unable to dlopen(/lib64/security/pam_deny.so): /lib64/security/pam_deny.so: failed to map segment from shared object: Cannot allocate memory
Apr 24 17:32:02 C20211215104933 crond[7596]: PAM adding faulty module: /lib64/security/pam_deny.so
发现 提示无法分配内存所致，是内存不够了，而且发现使用的是交换分区了。
后来重启服务器后，释放内存后，可以使用crontab 了。
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