Ticket #2752 (closed defect: obsolete)

Opened 11 years ago

Last modified 4 years ago

serial port in linux guest gives "serial8250: too much work for irq4"

Reported by: schinkelm Owned by:
Component: other Version: VirtualBox 2.0.6
Keywords: Cc:
Guest type: other Host type: other

Description (last modified by aeichner) (diff)

With kernel and a serial port enabled the following error message is given many times on the kernel log:

serial8250: too much work for irq4

A similar discussion related to qemu is here:

The port works without problems.

Change History

comment:1 Changed 11 years ago by mstanisz

I'm having the same exact problem, only it is causing data loss in my case. When I try and transfer a file in my CentOS guest, the data is broken up. I did a dmesg and got several instances of:

serial8250: too much work for irq4



comment:2 Changed 11 years ago by Flancer

I get the same problem in 2.2.

Mapped /dev/ttyS0 to /dev/ttyS0 on the host.

Host : Ubuntu 7.10

Guest: Ubuntu 8.04

I am running Hylafax with an Agere external modem and it seems this problem causes the fax to work unreliably from the guest.

comment:3 Changed 4 years ago by aeichner

  • Status changed from new to closed
  • Resolution set to obsolete
  • Description modified (diff)

Please reopen if still relevant with a recent VirtualBox release.

Note: See TracTickets for help on using tickets.
ContactPrivacy policyTerms of Use