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FromRob Landley <>
SubjectRe: 2.6.24 says "serial8250: too much work for irq4" a lot.
DateFri, 8 Feb 2008 01:04:52 -0600
On Thursday 07 February 2008 15:19:39 H. Peter Anvin wrote:
> Rob Landley wrote:> > Specifically, qemu isn't paravirtualized, it's fully virtualized.  The
> > same kernel can run on real hardware just fine.  (Sort of the point of
> > the project...)> >> > I can yank the warning for the kernels I build (or set PASS_LIMIT to
> > 9999999), but I'd rather not carry any more patches than I can avoid...>> Patch attached, completely untested beyond compilation.
>> In particular:>> 	- we should probably clear the burst counter when the interrupt
> 	  line goes from inactive to active.
> 	- there probably should be a timer which clears the burst
>   	  counter.
>
> However, I think I've covered most of the bases...

Well, qemu still seems to work with the patch applied, and I haven't 
reproduced the error message yet...

Rob
-- 
"One of my most productive days was throwing away 1000 lines of code."
  - Ken Thompson.


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