serial8250: too much work for irq 19

[Kam Leo]

On Sun, Sep 19, 2010 at 5:28 AM, Richard Shaw <hobbes1069 at gmail.com> wrote:

> I installed F13 on my Dad's computer last night and ran into this
> issue. The install itself went perfectly. I'm not sure what's
> different between what services get run during install and regular
> startup, but I can boot to the recovery option of the install DVD and
> chroot to the system drive no problem.
>
> When I boot normally everything starts fine and then somewhere around
> the avahi daemon starting the system slows to a CRAWL, the abrt daemon
> fails to start but otherwise continues.
>
> Checking dmesg I see the following repeated probably 1000 times:
>
> serial8250: too much work for irq 19
>
> I've googled this and the fact that my Dad's hardware is current (Acer
> dual core Pentium D) I don't think it actually has a 8250 UART. It
> could be a serial port that's not being detected correctly or an
> internal modem. I'll have to get him to check if he actually has
> one...
>
> Anyone have any experience troubleshooting things like this?
>

If the UART is integrated into the motherboard disable it in the BIOS or
reassign the IRQ. If the UART is a add-on check to see if you can change the
IRQ via moving or adding a jumpoer.

>
> Thanks,
> Richard
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