on a replicate setup with 2 servers crash occured in stat-prefetch ..
Program terminated with signal 6, Aborted.
#0  0x00007fccc6ce84b5 in raise () from /lib/libc.so.6
(gdb) bt
#0  0x00007fccc6ce84b5 in raise () from /lib/libc.so.6
#1  0x00007fccc6cebf50 in abort () from /lib/libc.so.6
#2  0x00007fccc6d20c97 in ?? () from /lib/libc.so.6
#3  0x00007fccc6d2add6 in ?? () from /lib/libc.so.6
#4  0x00007fccc6d2f70c in free () from /lib/libc.so.6
#5  0x00007fccc747d162 in rbthash_deinit_entry (tbl=0xa39938, entry=0x7fccc17ce150) at rbthash.c:225
#6  0x00007fccc747ba71 in rb_destroy (tree=0xa36870, destroy=0x7fccc747d190 <rbthash_entry_deiniter>) at ../../contrib/rbtree/rb.c:872
#7  0x00007fccc747cf40 in rbthash_table_destroy_buckets (tbl=0xa39938) at rbthash.c:406
#8  0x00007fccc747cf6e in rbthash_table_destroy (tbl=0xa39938) at rbthash.c:419
#9  0x00007fccc5604bed in sp_cache_remove_entry (cache=<value optimized out>, name=0x4504 <Address 0x4504 out of bounds>, remove_all=<value optimized out>)
    at stat-prefetch.c:415
#10 0x00007fccc5604ce0 in sp_fd_ctx_free (fd_ctx=0xa35408) at stat-prefetch.c:532
#11 0x00007fccc5604d32 in sp_release (this=0xa39d68, fd=0x4500) at stat-prefetch.c:3675
#12 0x00007fccbc0013d8 in ?? ()
#13 0x0000000000000003 in ?? ()
#14 0x00007fccc747465f in fd_destroy (fd=0xa39d68) at fd.c:411
#15 fd_unref (fd=0xa39d68) at fd.c:457
#16 0x00007fccc53ecac0 in free_state (state=0x7fccbc003f98) at fuse-bridge.c:194
#17 0x00007fccc53ed811 in fuse_thread_proc (data=<value optimized out>) at fuse-bridge.c:3188
#18 0x00007fccc702aa04 in start_thread () from /lib/libpthread.so.0
#19 0x00007fccc6d947bd in clone () from /lib/libc.so.6
#20 0x0000000000000000 in ?? ()