iSCSI initiator: iscontrol cannot be stopped or killed

[Mark Martinec]

> > If you can get it back into this state,
> 
> Sure, *every* time.
> 
> > a procstat -k -k <iscontrol pid> would be very helpful.
> > (the second -k is not a typo).
> 
> # procstat -k -k 5896
>   PID    TID COMM             TDNAME           KSTACK
>  5896 102364 iscontrol        -                mi_switch+0x174
> sleepq_timedwait+0x42 _sleep+0x301 ic_init+0x2f1 iscsi_ioctl+0x525
> devfs_ioctl_f+0x7b kern_ioctl+0x115 sys_ioctl+0xfd amd64_syscall+0x450
> Xfast_syscall+0xf7

Additional info: the process is blocking on 'ffp', unresponsive to signals:

  UID   PID  PPID CPU PRI NI    VSZ    RSS MWCHAN STAT  TT         TIME COMMAND
    0  5896     1   0  20  0  16424   1264 ffp    Ds    ??      0:00.04 iscontrol -c /etc/iscsi.conf -n xxx


Mark