kernel panic at kern/src/ns/tree_file.c:820, from core 3: assertion failed: tree_file_is_dir(new_parent) Stack Backtrace on Core 3: #01 [<0xffffffffc200a3b7>] in backtrace at src/kdebug.c:219 #02 [<0xffffffffc2009b7c>] in _panic at src/init.c:266 #03 [<0xffffffffc2043cc1>] in tree_file_rename at src/ns/tree_file.c:820 #04 [<0xffffffffc2043e57>] in tree_chan_rename at src/ns/tree_file.c:915 #05 [<0xffffffffc20336b8>] in __namec_from at src/ns/chan.c:1287 #06 [<0xffffffffc20340af>] in namec at src/ns/chan.c:1509 #07 [<0xffffffffc203df31>] in sysrename at src/ns/sysfile.c:874 #08 [<0xffffffffc2055a12>] in sys_rename at src/syscall.c:2349 #09 [<0xffffffffc2059149>] in syscall at src/syscall.c:2528 #10 [<0xffffffffc2059304>] in run_local_syscall at src/syscall.c:2563 #11 [<0xffffffffc2059839>] in prep_syscalls at src/syscall.c:2583 #12 [<0xffffffffc20aaf1a>] in sysenter_callwrapper at arch/x86/trap.c:859 17:44:30 executing program 4: mmap(&(0x7f0000003000/0x2000)=nil, 0x2000, 0x1, 0x100000000004131, 0xffffffffffffffff, 0x0) fork()