panic: pmap_remove_pv: not on list
Stopped in pid 25231.1 (doxygen) at     netbsd:cpu_Debugger+0x14:       addi    1
,1,16
db> bt
at panic+1cc
at pmap_remove_pv+194
at pmap_remove+1e8
at ubc_alloc+400
at ffs_read+598
at VOP_READ+38
at vn_read+c4
at dofileread+e4
at sys_read+84
at syscall_plain+134
at setfault+c54
db> 

load averages:  1.24,  1.21,  1.12                                                                                   up 0 days, 15:57   00:45:01
58 processes:  1 runnable, 56 sleeping, 1 on processor
CPU states: 97.0% user,  0.0% nice,  3.0% system,  0.0% interrupt,  0.0% idle
Memory: 742M Act, 1344K Inact, 8892K Wired, 15M Exec, 216M File, 40M Free
Swap: 500M Total, 500M Free

  PID USERNAME PRI NICE   SIZE   RES STATE      TIME   WCPU    CPU COMMAND
25231 makoto    64    0   505M  500M RUN      116:59 98.83% 98.83% doxygen