bash-4.3$ kernel panic at kern/src/ns/chan.c:324, from core 0: cclose 0x0000000000000000
Stack Backtrace on Core 0:
#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 [<0xffffffffc203d74d>] in sysbind at src/ns/sysfile.c:467
#15 [<0xffffffffc20557ce>] in sys_nbind at src/syscall.c:2236
#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