On Sat, Sep 29 2018, Raymond Jennings wrote: > [New LWP 19644] > [Thread debugging using libthread_db enabled] > Using host libthread_db library "/lib64/libthread_db.so.1". > Core was generated by `git submodule--helper status'. > Program terminated with signal SIGSEGV, Segmentation fault. > #0 refs_read_raw_ref (type=<optimized out>, referent=<optimized out>, > oid=<optimized out>, refname=<optimized out>, ref_store=<optimized > out>) at refs.c:1451 > 1451 return ref_store->be->read_raw_ref(ref_store, refname, oid, > referent, type); > #0 refs_read_raw_ref (type=<optimized out>, referent=<optimized out>, > oid=<optimized out>, refname=<optimized out>, ref_store=<optimized > out>) at refs.c:1451 > #1 refs_resolve_ref_unsafe (refs=0x0, > refname=refname@entry=0x55e863062253 "HEAD", > resolve_flags=resolve_flags@entry=1, oid=oid@entry=0x7ffdc834b1c0, > flags=flags@entry=0x7ffdc834b1bc) at refs.c:1493 > #2 0x000055e862fcad5c in refs_read_ref_full (flags=0x7ffdc834b1bc, > oid=0x7ffdc834b1c0, resolve_flags=1, refname=0x55e863062253 "HEAD", > refs=<optimized out>) at refs.c:224 > #3 refs_head_ref (refs=<optimized out>, fn=fn@entry=0x55e862f25fb0 > <handle_submodule_head_ref>, cb_data=cb_data@entry=0x7ffdc834b300) at > refs.c:1314 > #4 0x000055e862f292a2 in status_submodule (flags=0, prefix=<optimized > out>, ce_flags=0, ce_oid=0x55e86468d4d4, path=0x55e86468d4e8 > "lpc-doc") at builtin/submodule--helper.c:624 > #5 status_submodule_cb (cb_data=0x7ffdc834b240, > list_item=0x55e86468d490) at builtin/submodule--helper.c:665 > #6 for_each_listed_submodule (cb_data=<optimized out>, fn=<optimized > out>, list=<optimized out>) at builtin/submodule--helper.c:404 > #7 module_status (argc=<optimized out>, argv=<optimized out>, > prefix=<optimized out>) at builtin/submodule--helper.c:698 > #8 0x000055e862eaec95 in run_builtin (argv=<optimized out>, > argc=<optimized out>, p=<optimized out>) at git.c:346 > #9 handle_builtin (argc=<optimized out>, argv=<optimized out>) at git.c:554 > #10 0x000055e862eaf985 in run_argv (argv=0x7ffdc834be20, > argcp=0x7ffdc834be2c) at git.c:606 > #11 cmd_main (argc=<optimized out>, argv=<optimized out>) at git.c:683 > #12 0x000055e862eae96a in main (argc=3, argv=0x7ffdc834c078) at common-main.c:43 Can you consistently reproduce this? Maybe Stefan can make some sense of this, but it would be really useful if you could compile git from the master branch with CFLAGS="-O0 -g" and run gdb with that and paste that backtrace, and even better if you're in a position to share a copy of the repository where this happens.