serial8250: too much work for irq17
Mikkel L. Ellertson
mikkel at infinity-ltd.com
Wed Jul 4 17:30:21 UTC 2007
Steven Stern wrote:
> After upgrading from FC6 to F7, I see the following as I boot
>
> Jul 3 22:04:43 sds-desk kernel: serial8250: too much work for irq17
> Jul 3 22:04:43 sds-desk kernel: serial8250: too much work for irq17
>
> Is this serious?
It is definitely strange. Where did you get a card using a 8250 UART
that is using IRQ 17? I didn't think anybody used them any more, as
they are a UART without a transmit/receive buffer. Considering that
it would be generating an interrupt for each character, you would
not want it on a high IRQ. On the other hand, the device is probably
not reporting itself correctly. If it does have a 8250 UART on it,
see if you can change the IRQ to 3 or 4.
Mikkel
--
Do not meddle in the affairs of dragons,
for thou art crunchy and taste good with Ketchup!
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