Re: 2.6.{30,31} x86_64 ahci problem - irq 23: nobody cared

[David Daney]

Alexander Huemer wrote:
> David Daney wrote:
> > Alexander Huemer wrote:
> > > the problem appears under heavy system load and slows down the system to
> > > unusable speed.
> > > kernels before .30 were not affected.
> > > irqpoll does not change behavior.
> > >
> > > error message from .31:
> > >
> > >     [157152.418524] irq 23: nobody cared (try booting with the "irqpoll"
> > >     option)
> > >     [157152.418530] Pid: 1359, comm: cc1plus Tainted: G        W 
> > Right here is the problem  ->         ^^^^^^^^
> >
> > Haven't you read all the threads about the evil of C++.  This is just
> > one more example of the why we shouldn't be using it. :-)
> >
> > David Daney
[...]
> thanks for your quick answer, david.
> so, this isn't a kernel issue at all ?
> imho a user process shouldn't be able to cause such a situation.
> what can i do against that phenomenon ?

Just for avoidance of doubt, it was an attempt at a joke.

You are of course correct.  It looks like a real bug.  User-space 
shouldn't matter.

David Daney
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