Re: Multithreaded core dumps

Alan Cox (alan@lxorguk.ukuu.org.uk)
Thu, 30 Aug 2001 10:12:49 +0100 (BST)

> > The 2.4-ac tree supports dumping core.$pid for the threads that actually
> > died
>
> ... and these dumps are not reliable. Living thread may modify the
> contents of dump as it's being written out. I.e. you are getting
> false alarms - inconsistent data that was never there.

That is mathematically insoluble. Think about an SMP system, you cannot stop
the other thread in instantaneously small time

Alan
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