Created attachment 118172 [details]
Backtrace

Arma 3 crashes when entering map. Last lines from eon.txt:

[thread 0000000f][E][48299]: Program from shader GL_FRAGMENT_SHADER with length
20611 and CRC 0xae61bc1c has not been successfully linked. Program info log:
error: Too many fragment shader texture samplers

Mesa version: 11.0.0-rc3
GPU: R9 390
GCC options: -O1 -ggdb -march=native

Attaching backtrace and eon.txt in case there is some useful information.
MESA_GLSL=log didn't save the failing shader, just all before it. Please let me
know if I can provide more information.