Dear all,

My server is having redhat 9. Server was working gr8 but yesterday when i tried to add user it gives me segmenation fault.
Here is the output:-

[root@mail root]# useradd testing123
Segmentation fault
[root@mail root]#

I thought my shadow-utils are broken. I tried to install shadow-utils forcibly. It installed but it didnt solved my problem.

Does anybody have idea regarding this ?
Waiting for any reply.

Thanks,
Joel Solanki

Might be a libc issue. You could try reinstalling it. Also, RH9 is a bit dated these days.

Yes redhat 9 is old now
redhat 9 has glibc as below by default.

glibc-profile-2.3.2-11.9
glibc-common-2.3.2-11.9
glibc-devel-2.3.2-11.9
glibc-utils-2.3.2-11.9
glibc-2.3.2-11.9
glibc-debug-2.3.2-11.9

I thought it would be glibc issue. so i upgraded glibc. below are the updated rpms.

glibc-utils-2.3.2-27.9.7
glibc-common-2.3.2-27.9.7
glibc-profile-2.3.3-27.9.7
glibc-debug-2.3.2-27.9.7
glibc-devel-2.3.2-27.9.7
glibc-2.3.2-27.9.7

so i upgraded the rpms with rpm -Uvh it didnt had any side effect. but still useradd didnt work.
so i started to search for problem. i did the following.

ulimit -c 99999999
useradd testing123
gaved me segmentation fault. but i got the core file.

did this
[root@mail root]# file core.4673
core.4673: ELF 32-bit LSB core file Intel 80386, version 1 (SYSV), SVR4-style, from 'useradd'

any ideas.
or what can be the solution for make the server working?
this is my mail server. all mail boxes are in /home and its a different partition.
reinstall or upgrade should work ?
any ideas
thanks

Well, in theory, you could use gdb to debug it... if there are debugging symbols.

Or you could try running strace on useradd to see where it crashes.