Segmentation fault on root login
With bash: [: : integer expression expected message.
Reason of crash
bash killed by SIGSEGV
When it happens:
the first few times I open bash;
every time on 'sudo -s';
every time on 'su root', but never on 'su username';
every time on 'su';
never on 'sudo command' (I just type in the password)
'Ctrl + C' few seconds after entering the password in 'sudo -s' will get me logged in as root, but if I wait I get the segmentation fault, and stay as a normal user.
Also, sometimes, I would get a prompt to enter root password to 'see others problems' (in ABRT GUI).
Things that could have could have caused it:
I was configuring my root's user variables, and some where pointing to the same directory twice;
I have had problems with opening account setting for some time, it would hang and ask me to kill the process or wait;
Enabling automatic login in account settings;
Nothing was installed or updated that day;
Laptop fan speeds up for a bit when I run one of the above.
Linux newbie using RHEL 7.5 because some development tools are not available on Ubuntu.
FIXED !
It was in the root's .bashrc! I was looking as root into /home/username/.bashrc
The line that caused all this was ". ~/bash_profile"
I was confused when which file gets read.
Responses
Guru
3262 points
You could boot the host in emergency mode (https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/6/html/deployment_guide/sec-emergency_mode) if you have access to the console, and then check the filesystem out and look at root's (.profile, .bashrc) RC files to see if anything has recently changed.
/var/log/yum.log might be a good place to check to see if anyone touched up the host at all recently.
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