Re: [Gumstix-users] Seg Fault on first 2 runs of dynamically linked executables.

[pac <pa...@pr...>]

Jon Hylands wrote:
> On Thu, 04 Oct 2007 16:14:11 +0100, "pac" <pa...@pr...> wrote:
> 
>>       We're using a pxa255 based gumstix ( with the r1161 toolchain ),
>> and have a dynamically linked executable ( which is linked with several
>> of our own libraries as well as system libraries. )  If we store this in
>> nfs it starts fine, however if we put it in the jffs2 filesystem on
>> flash, then it fails with Segmentation Fault, the first 2 Times we run
>> it, and then works fine on the 3rd and all subsequent runs, until the
>> gumstix is rebooted.
>> If we run this in strace from flash then it also works fine, and if we
>> run it in gdb then we don't get a useful stack trace from it, but it
>> fails before breaking on main().
> 
> I've run into that before, when running Squeak. What we did to fix it was
> basically pre-cache the shared libraries before running the executable...
> 
> cp vm-display-null /dev/null
> cp vm-sound-null /dev/null
> ./squeak -vm-display-null -headless gumstix.image -$1
> 
> That fixes the problem for me...

Thanks Jon, cat to dev null of our libraries works too.

Does anyone know what the cause of this problem is?

Thanks
Philip

> 
> Later,
> Jon
> 
> --------------------------------------------------------------
>    Jon Hylands      Jo...@hu...      http://www.huv.com/jon
> 
>   Project: Micro Raptor (Small Biped Velociraptor Robot)
>            http://www.huv.com/blog
> 
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