Inconsistency detected by ld.so: dl-open.c: 667: _dl_open: Assertion `_dl_debug_initialize (0, args.nsid)->r_state == RT_CONSISTENT' failed! Create a symbolic link libjson.so.0 -> / usr/lib64/libjson-c.so.2.0.1 solve the problem of launching google-chrome. Of course this is not the correct solution.
1) What library is google-chrome trying to dlopen at that point? 2) Please post your `emerge --info' output in a comment.
I hazard a guess you need to re-emerge media-sound/pulseaudio but that fails on the bug this is a duplicate of. *** This bug has been marked as a duplicate of bug 467280 ***