I've updated to ICC 16 and I see the following error in GDB:
../build/buildd/gdb-7.7.1/gdb/dwarf2read.c:19061: internal-error: follow_die_offset: Assertion `dwarf2_per_objfile->reading_partial_symbols' failed.
A problem internal to GDB has been detected,
further debugging may prove unreliable.
My system settings:
OS: ubuntu 14.04
ICC:icpc (ICC) 16.0.0 20150815
Copyright (C) 1985-2015 Intel Corporation. All rights reserved
GDB: GNU gdb (Ubuntu 7.7.1-0ubuntu5~14.04.2) 7.7.1
BTW, Intel's debugger gdb-ia seems to be working fine