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: | |
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Component: | other | Version: | VirtualBox 2.0.6 |
Keywords: | Cc: | ||
Guest type: | other | Host type: | other |
Description (last modified by )
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 , 16 years ago
comment:2 by , 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 , 8 years ago
Description: | modified (diff) |
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Resolution: | → obsolete |
Status: | new → closed |
Please reopen if still relevant with a recent VirtualBox release.
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