Unsolved Kernal panic - not syncing: Attempted to kill init!

[ManofValor]

Well, that didn’t work. The cable is fine. I get internet and I can ping it.

[Tom Elliott]

@ManofValor Cable being fine doesn’t tell us much. (You pulled it and put in a new one just in case?)

Where are you getting the ipxe error from? The error from iPXE is not a kernel panic.

[Tom Elliott]

Seeing as the error that you’re seeing states “Connection reset” that could mean any number of things, though I wouldn’t know where to begin looking.

Maybe you have port security turned on? I don’t know. If that’s the problem, now, it would seem to indicate (probably) a problem with the specific system you’re running into these issues with.

First it was ram, now the nic won’t maintain connection, etc…???

[ManofValor]

I started thinking the same thing. I’m going to try a different PC and see what happens.

[ManofValor]

I believe httpd is the problem right now. I tried to go into FOG management and got an "Unable to connect"page. So I tried to run the installer and apache2 failed to start. I’ve looked at a lot of sites with this similar issue and cannot determine a solution for me. I’ve started, restarted, stopped, reloaded, kill, and tried to update apache/httpd. Here is some info that I hope can help.

[root@localhost httpd]# service httpd start
Redirecting to /bin/systemctl start  httpd.service
Job for httpd.service failed because the control process exited with error code. See "systemctl status httpd.service" and "journalctl -xe" for details.
[root@localhost httpd]# systemctl status httpd.service
● httpd.service - The Apache HTTP Server
   Loaded: loaded (/usr/lib/systemd/system/httpd.service; enabled; vendor preset: disabled)
   Active: failed (Result: exit-code) since Thu 2016-12-01 15:08:00 CST; 30s ago
     Docs: man:httpd(8)
           man:apachectl(8)
  Process: 13974 ExecStop=/bin/kill -WINCH ${MAINPID} (code=exited, status=1/FAILURE)
  Process: 13959 ExecStart=/usr/sbin/httpd $OPTIONS -DFOREGROUND (code=exited, status=1/FAILURE)
 Main PID: 13959 (code=exited, status=1/FAILURE)

Dec 01 15:08:00 localhost.localdomain systemd[1]: Starting The Apache HTTP Server...
Dec 01 15:08:00 localhost.localdomain httpd[13959]: AH00558: httpd: Could not reliably determine the server's fully qu...ssage
Dec 01 15:08:00 localhost.localdomain systemd[1]: httpd.service: main process exited, code=exited, status=1/FAILURE
Dec 01 15:08:00 localhost.localdomain kill[13974]: kill: cannot find process ""
Dec 01 15:08:00 localhost.localdomain systemd[1]: httpd.service: control process exited, code=exited status=1
Dec 01 15:08:00 localhost.localdomain systemd[1]: Failed to start The Apache HTTP Server.
Dec 01 15:08:00 localhost.localdomain systemd[1]: Unit httpd.service entered failed state.
Dec 01 15:08:00 localhost.localdomain systemd[1]: httpd.service failed.
Hint: Some lines were ellipsized, use -l to show in full.
[root@localhost httpd]# journalctl -xn
-- Logs begin at Wed 2016-11-30 13:17:57 CST, end at Thu 2016-12-01 15:08:31 CST. --
Dec 01 15:08:00 localhost.localdomain kill[13974]: kill: cannot find process ""
Dec 01 15:08:00 localhost.localdomain systemd[1]: httpd.service: control process exited, code=exited status=1
Dec 01 15:08:00 localhost.localdomain systemd[1]: Failed to start The Apache HTTP Server.
-- Subject: Unit httpd.service has failed
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
-- 
-- Unit httpd.service has failed.
-- 
-- The result is failed.
Dec 01 15:08:00 localhost.localdomain systemd[1]: Unit httpd.service entered failed state.
Dec 01 15:08:00 localhost.localdomain systemd[1]: httpd.service failed.
Dec 01 15:08:01 localhost.localdomain dhcpd[2890]: DHCPDISCOVER from 36:02:86:28:b1:8b (MCWPL53) via enp30s0
Dec 01 15:08:01 localhost.localdomain dhcpd[2890]: DHCPOFFER on 10.10.0.10 to 36:02:86:28:b1:8b (MCWPL53) via enp30s0
Dec 01 15:08:01 localhost.localdomain polkitd[777]: Unregistered Authentication Agent for unix-process:13944:9300666 (system b
Dec 01 15:08:28 localhost.localdomain dhcpd[2890]: DHCPINFORM from 10.10.1.167 via enp30s0: not authoritative for subnet 10.10
Dec 01 15:08:31 localhost.localdomain dhcpd[2890]: DHCPINFORM from 10.10.1.130 via enp30s0: not authoritative for subnet 10.10

I just don’t understand it enough to completely know what I’m looking at.

[Tom Elliott]

@ManofValor I’m going to guess that your main filesystem (which doesn’t appear to be a problem) is full again. I say that because all was working, then it wasn’t.

[Tom Elliott]

@ManofValor that and httpd has absolutely nothing with DHCP, TFTP, or the fos system with kernel panics.

[ManofValor]

File system still seems fine:

Filesystem                     Type     Inodes IUsed IFree IUse%  Size  Used Avail Use% File Mounted on
/dev/mapper/centos00-root00    ext4       1.3M  164K  1.1M   13%   20G  7.7G   11G  42% -    /
devtmpfs                       devtmpfs   470K   494  469K    1%  1.9G     0  1.9G   0% -    /dev
tmpfs                          tmpfs      473K    10  473K    1%  1.9G  5.3M  1.9G   1% -    /dev/shm
tmpfs                          tmpfs      473K   645  473K    1%  1.9G   17M  1.9G   1% -    /run
tmpfs                          tmpfs      473K    13  473K    1%  1.9G     0  1.9G   0% -    /sys/fs/cgroup
/dev/sda5                      ext4        63K   365   63K    1%  969M  329M  574M  37% -    /boot
/dev/mapper/fog-opt_fog_images ext4        26M   10K   26M    1%  395G   80G  295G  22% -    /opt
/dev/sdb1                      ext4       261M    15  261M    1%  8.1T   91M  7.7T   1% -    /images
tmpfs                          tmpfs      473K    30  473K    1%  379M   16K  379M   1% -    /run/user/1000

[ManofValor]

post-is-deleted

[ManofValor]

OK, I fixed the Apache/HTTPD issue. After much, much, much searching I found this site for a fix and it worked for me.
http://awsadminz.com/httpd-service-main-process-exited-kill-cannot-find-process/
Should I post a separate tutorial as a fix for this issue?
As for the kernel thing, I tried a different PC and it is working fine. I guess I’ll have to figure that one out.