What's also interesting is running FreeSWITCH on a RPi. Last time I tried to compile FS on a i686/512MB host [1], GCC OOM'd during linking. And I can't imagine cross-compiling, mostly because I just spent a day fighting an APR cross-compile [2] from x86 to ARM.

But I digress.. awesome bit of detective work in the article. Compiler bugs are really frustrating/tedious to root out, especially if you don't usually muck around with asm.

[1] Underpowered according to FS's own recommended specs.

[2] FS also uses APR, but I'm just bitter that it's virtually impossible to cross-compile the Apache Portable Runtime out of the box...