login: Aug  8 21:47:38 dfbsd kernel: nfs server 127.0.0.1:/export: not responding
Aug  8 21:47:42 dfbsd kernel: nfs send error 61 for server 127.0.0.1:/export
Aug  8 21:48:44 dfbsd kernel: nfs server 127.0.0.1:/export: not responding
panic: lockmgr: locking against myself
cpuid = 0
Trace beginning at frame 0xfffff801184f36d8
lockmgr_exclusive() at lockmgr_exclusive+0x3e0 0xffffffff80647f30 
lockmgr_exclusive() at lockmgr_exclusive+0x3e0 0xffffffff80647f30 
vn_lock() at vn_lock+0xc0 0xffffffff807089b0 
vget() at vget+0x3e 0xffffffff806f735e 
setfown() at setfown+0x39 0xffffffff806ffd29 
sys_fchown() at sys_fchown+0x8b 0xffffffff8070545b 
Debugger("panic")

CPU0 stopping CPUs: 0x0000003e
 stopped
Stopped at      Debugger+0x7c:  movb    $0,0xbdaf09(%rip)
db>