VirtualBox

Opened 16 years ago

Closed 8 years ago

#2752 closed defect (obsolete)

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

Reported by: M. Schinkel Owned by:
Component: other Version: VirtualBox 2.0.6
Keywords: Cc:
Guest type: other Host type: other

Description (last modified by aeichner)

With kernel 2.6.27.6 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: http://kerneltrap.org/mailarchive/linux-kernel/2008/2/5/735714

The port works without problems.

Change History (3)

comment:1 by mstanisz, 16 years ago

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

Thanks!

Matt

comment:2 by John Huong, 15 years ago

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 by aeichner, 8 years ago

Description: modified (diff)
Resolution: obsolete
Status: newclosed

Please reopen if still relevant with a recent VirtualBox release.

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