unkillable firefox

[Steve Kargl]

Anyone know how to kill firefox?

last pid: 69652;  load averages:  0.49,  0.27,  0.24      up 1+02:40:06  13:16:02
126 processes: 1 running, 121 sleeping, 4 stopped
CPU:  0.8% user,  0.0% nice,  0.0% system,  0.0% interrupt,  100% idle
Mem: 2049M Active, 3739M Inact, 496M Laundry, 1365M Wired, 783M Buf, 239M Free
Swap: 16G Total, 1772K Used, 16G Free

  PID USERNAME   PRI NICE SIZE    RES STATE   C   TIME    WCPU COMMAND
63902 kargl      40   0  3157M  2302M STOP    1  10:50   0.00% firefox{firefox}
63902 kargl     -16   0  3157M  2302M STOP    2   5:46   0.00% firefox{Composit
16874 kargl      40   0   740M   330M STOP    1   0:07   0.00% firefox{firefox}
16874 kargl     -16   0   740M   330M STOP    1   0:00   0.00% firefox{Composit

It seems that firefox is wedged in the thread firefox{Compositor},
and slowly eating up memory.  This is on an amd64 system at
r310125 and latest firefox from ports.  procstat suggests that its
stuck in a vm sleep queue.

% procstat -k 63902
  PID    TID COMM       TDNAME       KSTACK                       
63902 100504 firefox    -            mi_switch thread_suspend_switch
                                     thread_single exit1 sigexit postsig ast
                                     Xfast_syscall 
63902 101494 firefox    Compositor   mi_switch sleepq_wait _sleep 
                                     vm_page_busy_sleep vm_page_sleep_if_busy
                                     vm_fault_hold vm_fault trap_pfault trap
                                     calltrap 

-- 
Steve