gcj crashes if a user-thread gives up its rights

Wed Dec 15 20:02:00 GMT 2004

> to do what you want (pthread_setuid_np()?). 

Well, I don't insist on the non-posix behaviour.
All user-threads are not a problem either, because
they are started from my pool which does the right
things.
The problem is the one gc/gcj "system thread" which I
don't control. 
> And for non-Java code, it would be trivial
> to just hijack another thread.

How? That exactly would be the solution to my
problem: I cannot change the uid for the gcj "system
thread". -- What does this thread do, btw? I assumed
that it is either the GC or a mediator which works for
the GC.
> nptl source [...] still seems to rely on signals for
a few things
I've had the impression that this is only used to
cancel a thread or other things that I don't expect to
work when my thread doesn't have the rights.
Jost

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