***BOGO*** Re: [Mingw-users] GCC 4.3.0 20080502 (alpha) Released - Please help us test it!

[Ramiro Polla <ramiro@xxxxxxxxxxxxx>]

Hello Aaron,

Aaron W. LaFramboise wrote:
> Ramiro Polla wrote:
> 
>> I tried running FFmpeg's regression tests with it. The compilation went 
>> fine, but I get a segfault on a huge file (snow.c) with a big 
>> always_inline function (add_yblock), that has a variable-length array of 
>> 17920 bytes. The crash happens on _alloca(). It happens with -O1 and up. 
>> Could you help me go further into dissecting this bug so I might send a 
>> bug report? It's hard to debug inside GCC's internals (like _alloca()) 
>> for me.
> 
> Thank you for this report.
> 
> The proper way to proceed on these kinds of bugs is to minimize the test 
> case, so you end up with the smallest possible run of code that 
> demonstrates the bug.
> 
> The general process for runtime failures is to 1) try to all get all 
> relevant code into a single .c file that still demonstrates the problem, 
> 2) preprocess it with -E or -save-temps 3) remove all code you can while 
> retaining the bug and not causing other failures.

I was hoping I wouldn't have to go this far, since as I mentioned the 
file is huge and it'd take me quite some time to create a minimal 
testcase. I'm also a GSoCer, so I won't have time to work on this... 
Sorry, but good luck on your project =)

Ramiro Polla

-------------------------------------------------------------------------
This SF.net email is sponsored by: Microsoft 
Defy all challenges. Microsoft(R) Visual Studio 2008. 
http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/
_______________________________________________
MinGW-users mailing list
MinGW-users@xxxxxxxxxxxxxxxxxxxxx

You may change your MinGW Account Options or unsubscribe at:
https://lists.sourceforge.net/lists/listinfo/mingw-users