[user1@cent6.4box ~]$ ipcs -m ------ Shared Memory Segments -------- key shmid owner perms bytes nattch status 0x6c000803 98304 zabbix 600 995952 5
[user1@cent6.4box ~]$ ipcs -s ------ Semaphore Arrays -------- key semid owner perms nsems 0x00000000 0 root 600 1 0x00000000 65537 root 600 1 0x00000000 131074 root 600 1 0x7a000803 262147 zabbix 600 10 [user1@cent6.4box ~]$ Nothing is jumping out at me here... Brian Brian Chabot On Mon, Mar 10, 2014 at 10:15 AM, Bruce Dawson <j...@codemeta.com> wrote: > Check shared memory and semaphores. Its probable that some other > application is swallowing the resource sudo needs. This is a common > method of DOS attacks and 'bot nets. > > --Bruce > > On Mon, 2014-03-10 at 10:05 -0400, Brian Chabot wrote: >> I'm trying to su to a user on a CentOS 6.4 x86_64 box and get the >> error in the subject: >> >> [user1@cent6.4box ~]$ sudo su - user2 >> su: cannot set user id: Resource temporarily unavailable >> [user1@cent6.4box ~]$ >> >> The limits.conf file has the following entries: >> * soft nofile 100000 >> * hard nofile 100000 >> * soft nproc 8192 >> * hard nproc 32767 >> >> The current usage for pengine is: >> [user1@cent6.4box ~]$ ps -eLF | grep user2 | wc -l >> 1108 >> [user1@cent6.4box ~]$ lsof | grep user2 | wc -l >> 1558 >> [user1@cent6.4box ~]$ >> >> While these are the majority of the processes and files in use on the >> system, they are nowhere near the limits. >> >> I even increased the limits 10-fold and that has not worked. >> >> I'm kind of lost here. Usually the error indicates files or processes >> over the limit but here... not so much. >> >> Any ideas? >> >> >> >> Brian Chabot >> _______________________________________________ >> gnhlug-discuss mailing list >> gnhlug-discuss@mail.gnhlug.org >> http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/ > > > _______________________________________________ > gnhlug-discuss mailing list > gnhlug-discuss@mail.gnhlug.org > http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/ _______________________________________________ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
