Hi there, The new git-check-ignore command seg faults when (1) it is called with single dot path name at $GIT_DIR level _AND_ (2) and .gitignore has at least one directory pattern. Git version: 1.8.2.rc0.16.g20a599e Reproduce the bug: $ git --version git version 1.8.2.rc0.16.g20a599e $ mkdir test $ cd test $ git init $ git check-ignore . # All good, no errors here $ echo "dirpattern/" > .gitignore $ git check-ignore . Segmentation fault (core dumped) The segmentation fault is actually caused by hash_name(const char *name, int namelen) function in name-hash.c when the 'name' argument is an empty stringi and namelen is 0. The empty string comes from a call to the prefix_path(prefix, len, path) function in setup.c. In this instance arguments 'prefix' is NULL, 'len' is 0 and 'path' is "." . Cheers, Zoltan -- To unsubscribe from this list: send the line "unsubscribe git" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html