[srslte-users] srsUE running issue

Sylvain Munaut 246tnt at gmail.com
Tue May 24 15:10:06 UTC 2016


Hi,


> We haven't tested ARM processors yet. Would be great if you could debug the
> issue and point us where the memory corruption occurs.

I'm not sure those point to curruption.

ARM can't do unaligned loads ( so if you load a uint32_t , the 2 LSBs
of the address must be 0 ). That's what I'd expect the "Alignment
trap:" to be.

Linux can be compiled to catch those and emulate them. It helps the sw
not crash, but it's _very_ slow. Instead of a single memory fetch, you
have a context switch to kernel and back ...

Also the zynq is pretty weak ARM. I mean srsUE doesn't seem to have
enough CPU on my i7-4600U, so a dual-core 600 MHz ARM ...


Cheers,

   Sylvain



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