Arch Linux

MoonWalker

Member

Registered: 2017-02-14

Posts: 4

Kernel messages and problems on shutdown/reboot

I've installed Arch once on my computer, it was very difficult to correct all errors, but I did it. Hardware problems occured and my official manufacturer repair formatted my computer. Now, I'm having the same problems, but without being able to fix them. I've been following the Arch Wiki and everything was going fine, until I needed to install Xorg.

I needed to run the command:

lspci | grep -e VGA -e 3D

to know which drivers to install. The problem is the computer hangs on that tty, not even SIGKILL can break that command. Then I receive a kernel message like this:

NMI Watchdog: watchdog detected hard LOCKUP on cpu X

. I'm still able to open other tty. On journal, it says something like

rcu_preempt detected stalls on CPUs / tasks

and then the CPU that is blocked, the CPU who detected it was blocked and other information.

This doesn't occur because it ran out of RAM, because with

free -h

I was able to see it had 15GiB RAM free.

On reboot/shutdown it hangs forever... Even on archiso Live USB, I received the message:

watchdog0 did not stop

My specs:
Computer: MSI GL72M 7RDX
RAM: 16GB
CPU: Intel Core i7 (7th Gen) 7700HQ / 2.8 GHz Quad-Core
GPU: NVIDIA GeForce GTX 1050

Can anyone help me?

Last edited by MoonWalker (2019-02-05 18:35:46)

loqs

Member

Registered: 2014-03-06

Posts: 17,362

Re: Kernel messages and problems on shutdown/reboot

NVIDIA_Optimus#Lockup_issue_(lspci_hangs)

MoonWalker

Member

Registered: 2017-02-14

Posts: 4

Re: Kernel messages and problems on shutdown/reboot

I found a workaround for this, it was caused by module nouveau. For now, blacklisting it works perfectly