kernel panic at kern/src/ns/chan.c:324, from core 2: cclose 0x0000000000000000
Stack Backtrace on Core 2:
#01 [<0xffffffffc200a3b7>] in backtrace at src/kdebug.c:219
#02 [<0xffffffffc2009b7c>] in _panic at src/init.c:266
#03 [<0xffffffffc2031967>] in cclose at src/ns/chan.c:324
#04 [<0xffffffffc20332f9>] in walk_symlink at src/ns/chan.c:1695
#05 [<0xffffffffc20332e4>] in walk_symlink at src/ns/chan.c:1693
#06 [<0xffffffffc20332e4>] in walk_symlink at src/ns/chan.c:1693
#07 [<0xffffffffc20332e4>] in walk_symlink at src/ns/chan.c:1693
#08 [<0xffffffffc20332e4>] in walk_symlink at src/ns/chan.c:1693
#09 [<0xffffffffc20332e4>] in walk_symlink at src/ns/chan.c:1693
#10 [<0xffffffffc20332e4>] in walk_symlink at src/ns/chan.c:1693
#11 [<0xffffffffc2032e02>] in walk at src/ns/chan.c:864
#12 [<0xffffffffc20334d9>] in __namec_from at src/ns/chan.c:1131
#13 [<0xffffffffc20340af>] in namec at src/ns/chan.c:1509
#14 [<0xffffffffc203defd>] in sysrename at src/ns/sysfile.c:869
#15 [<0xffffffffc2055a12>] in sys_rename at src/syscall.c:2349
#16 [<0xffffffffc2059149>] in syscall at src/syscall.c:2528
#17 [<0xffffffffc2059304>] in run_local_syscall at src/syscall.c:2563
#18 [<0xffffffffc2059839>] in prep_syscalls at src/syscall.c:2583
#19 [<0xffffffffc20aaf1a>] in sysenter_callwrapper at arch/x86/trap.c:859
16:13:44 executing program 0:
r0 = openat(0xffffffffffffffff, &(0x7f0000000000)='./file0\x00', 0x8, 0x0, 0x10)
symlink(&(0x7f00000000c0)='./file0\x00', 0x8, &(0x7f0000000100)='./file1\x00', 0x8)
r1 = fcntl$F_DUPFD(0xffffffffffffffff, 0x0, r0, 0x0)
proc_create(&(0x7f0000000040)='./file0\x00', 0x8, &(0x7f0000000080)='\x00', 0x1, 0x1)
mmap(&(0x7f0000003000/0x3000)=nil, 0x3000, 0x1000000, 0x100000000004132, r1, 0x3)