Re: [feature] automatically detect hung TASK_UNINTERRUPTIBLE tasks
From: Ingo Molnar
Date: Mon Dec 03 2007 - 08:58:20 EST
* Pekka Enberg <penberg@xxxxxxxxxxxxxx> wrote:
> Hi,
>
> On Mon, Dec 03, 2007 at 12:59:00PM +0100, Ingo Molnar wrote:
> > > "audit thousands of callsites in 8 million lines of code first" is a
> > > nice euphemism for hiding from the blame forever. We had 10 years for it
>
> On Dec 3, 2007 2:13 PM, Andi Kleen <andi@xxxxxxxxxxxxxx> wrote:
> > Ok your approach is then to "let's warn about it and hope
> > it will go away"
>
> It's more like "lets warn about it and fix the problems when we find
> some." Btw, how is this different from how the lockdep patches went
> in?
yeah, it's quite similar. (in fact this feature is expected to have a
false positive rate lower than that of lockdep) The backtraces are
essential as well, they help kernel developer find the bugs.
Ingo
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