Messages in this thread |  | | | From | Rob Landley <> | | Subject | 2.6.24 says "serial8250: too much work for irq4" a lot. | | Date | Tue, 5 Feb 2008 14:55:10 -0600 |
When running a 2.6.24 kernel built for x86-64 under qemu via serial console,
doing CPU-intensive things that also produce a lot of output (such as
compiling software) tends to produce the error message in the title.
Anybody have a clue why? It doesn't seem to cause an actual problem, but it's
kind of annoying.
(If it's a qemu issue, I can go bother them. It's possible that qemu isn't
delivering interrupts as often as it expects, since that's limited by the
granularity of the host timer; I know the clock in qemu can run a bit slow
because it only gets clock interrupts when the host system isn't too busy to
schedule the emulator. But this doesn't usually cause a problem. I _think_
the message is just a "this should never happen" type warning, which is
happening to me. But I break stuff. :)
Rob
--
"One of my most productive days was throwing away 1000 lines of code."
- Ken Thompson.
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