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.
|  |