bash-4.3$ kernel panic at kern/src/ns/chan.c:324, from core 0: cclose 0x0000000000000000 Stack Backtrace on Core 0: #01 [<0xffffffffc200a3e7>] in backtrace at src/kdebug.c:219 #02 [<0xffffffffc2009bb2>] in _panic at src/init.c:273 #03 [<0xffffffffc2031a9a>] in cclose at src/ns/chan.c:324 #04 [<0xffffffffc2033429>] in walk_symlink at src/ns/chan.c:1695 #05 [<0xffffffffc2033414>] in walk_symlink at src/ns/chan.c:1693 #06 [<0xffffffffc2033414>] in walk_symlink at src/ns/chan.c:1693 #07 [<0xffffffffc2033414>] in walk_symlink at src/ns/chan.c:1693 #08 [<0xffffffffc2033414>] in walk_symlink at src/ns/chan.c:1693 #09 [<0xffffffffc2033414>] in walk_symlink at src/ns/chan.c:1693 #10 [<0xffffffffc2033414>] in walk_symlink at src/ns/chan.c:1693 #11 [<0xffffffffc2032f32>] in walk at src/ns/chan.c:864 #12 [<0xffffffffc2033609>] in __namec_from at src/ns/chan.c:1131 #13 [<0xffffffffc20341ef>] in namec at src/ns/chan.c:1509 #14 [<0xffffffffc203d8bd>] in sysbind at src/ns/sysfile.c:467 #15 [<0xffffffffc2055a3e>] in sys_nbind at src/syscall.c:2236 #16 [<0xffffffffc20593c9>] in syscall at src/syscall.c:2528 #17 [<0xffffffffc2059584>] in run_local_syscall at src/syscall.c:2563 #18 [<0xffffffffc2059ab9>] in prep_syscalls at src/syscall.c:2583 #19 [<0xffffffffc20ab29a>] in sysenter_callwrapper at arch/x86/trap.c:851