1

This message appears in my dropdown terminal at seemingly random times when no processes is running in that terminal:

andreas@debianator:~$ 
Message from syslogd@debianator at Feb 24 18:57:58 ...
 kernel:[43089.321139] Disabling IRQ #43

I guess I can disable it from being printed with dmesg -n 1 but what does the message mean?

  • 1
    Might indicate it's having trouble with some hardware device. Check /var/log/messages (or your distro's equivalent) for a full stack trace and you can check /proc/interrupts to see what that IRQ number is associated with. – Bratchley Feb 24 '15 at 21:14
2

Received a similar message to this a while ago. Discovered it was a hardware issue with how interrupts were passed from the PCI controller to PCI-Express controller (Intel PCI6466 chipset). Check deeper into the logs, look for: irq 43: nobody cared (try booting with the "irqpoll" option)

There are several things that can cause this including incorrect drivers.

  • To check deeper into the logs I suppose I should figure out how journalctl works - or is there be a better place to start? – MajorBriggs Feb 26 '15 at 11:51
  • I'm not familiar with how debian does logging. I use RHEL 6 so I typically use "grep -i kernel /var/log/messages | grep -i irq | less" – pacmanwa Feb 27 '15 at 21:55
1

The message states that the kernel is disabling an interrupt, ie. (usually) ignoring messages from some hardware. This can for example be due to a conflict between two hardware components. You can have more informations about what is using an interrupt with commands like lspci -v or cat /proc/interrupts.

-1

In your case, interrupt 3 is usually the console serial aux port - which if you have ttyS1 attached, you'll probably find it is now dead. IRQ 4 is the primary console port

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.