Re: SIGSEGV after infinite recursion in __vfprintf_chk?

["Yann E. MORIN" <yann dot morin dot 1998 at anciens dot enib dot fr>]

Luca, All,

On Thursday 25 February 2010 18:48:22 Luca Ceresoli wrote:
> So I wrote a minimal C program and run it through CT-NG's gdb (which luckily
> does not segfault!), and it seems it infinitely recurses in
> __vfprintf_chk(). SIGSEGV comes immediately after.

Also, here is the purpose of __vfprintf_chk:
http://refspecs.freestandards.org/LSB_4.0.0/LSB-Core-generic/LSB-Core-generic/libc---vfprintf-chk-1.html

Basically, __vfprintf_chk is called in place of vfprintf. That's a linker
trick, where vfprintf is in fact an alias to __vfprintf_chk. Its purpose
is to check for stack overflow (I don't dare look at how it does so).

The gst-doc package has had the same issue, and they fixed their code:
https://bugs.launchpad.net/ubuntu/+source/gnu-smalltalk/+bug/410263

BTW, please also provide your build.log file.

Regards,
Yann E. MORIN.

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