On Tue, 2010-08-17 at 14:33 +0200, Gilles Chanteperdrix wrote:
> Krzysztof Błaszkowski wrote:
> > Hello,
> > 
> > I found recently that large application uses to segfault before fork()
> > leaves its glibc wrapper.
> > 
> > I included here a test suite which can be easily used to verify what
> > goes wrong. It may be necessary to adjust makefile to compile the code.
> > So, the console is missing output from line #89. We can see instead a
> > message that getpid couldn't be linked which is 1st sign of memory
> > corruption.
> > 
> > i used to think that this issue could be related to not unbinding heap
> > before fork() but it turned out that it is enough to link userspace with
> > xenomai libraries.
> > 
> > I wonder if this is known issue and if there is any fix, does 2.5.4 work
> > same ? or maybe there is something wrong with the kernel i use (or adeos
> > patch)
> > 
> > Another question is why rt_task_create() is marked deprecated in native
> > skin. Does it mean that native skin is going to be removed from source
> > tree ?
> The libc on the system you run the test is not the same as the one of
> the compiler. Please re-run the test when using the same libc on the
> test board as on the machine where you are compiling.

I reckon you missed the clue. On the other hand: how can you explain
that main process even started ? and only child failed ?

and indeed i compile code on one box but run on another anyway both
rootfs'es are "bit equal".


Krzysztof Blaszkowski

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