kill -9 和 kill -15 都杀不死进程

[root@EXhongkong1 ~]# ps -ef|grep nginx

root     26237 25787  0 10:55 pts/6    00:00:00 grep nginx

nobody   32351     1  0 Jul02 ?        00:02:10 nginx: worker process                                          

nobody   32352     1  0 Jul02 ?        00:02:15 nginx: worker process                                          

[root@EXhongkong1 ~]# 

[root@EXhongkong1 ~]# 

[root@EXhongkong1 ~]# kill -9 32351

[root@EXhongkong1 ~]# kill -9 32352

[root@EXhongkong1 ~]# 

[root@EXhongkong1 ~]# ps -ef|grep nginx

root     26241 25787  0 10:55 pts/6    00:00:00 grep nginx

nobody   32351     1  0 Jul02 ?        00:02:10 nginx: worker process                                          

nobody   32352     1  0 Jul02 ?        00:02:15 nginx: worker process

[root@EXhongkong1 ~]# cat /proc/32351/status 

Name:   nginx

State:  D (disk sleep)

SleepAVG:       98%

Tgid:   32351

Pid:    32351

PPid:   1

TracerPid:      0

Uid:    99      99      99      99

Gid:    99      99      99      99

FDSize: 256

Groups: 99 

VmPeak:    49704 kB

VmSize:    47660 kB

VmLck:         0 kB

VmHWM:     26960 kB

VmRSS:      1716 kB

VmData:    25528 kB

VmStk:        88 kB

VmExe:       448 kB

VmLib:      2920 kB

VmPTE:       132 kB

StaBrk: 0068d000 kB

Brk:    1d004000 kB

StaStk: 7fff4e7ad030 kB

Threads:        1

SigQ:   4/38912

SigPnd: 0000000000000100

ShdPnd: 0000000000004100

SigBlk: 0000000000000000

SigIgn: 0000000040001000

SigCgt: 0000000018016a07

CapInh: 0000000000000000

CapPrm: 0000000000000000

CapEff: 0000000000000000

Cpus_allowed:   7fffffff,ffffffff,ffffffff,ffffffff,ffffffff,ffffffff,ffffffff,ffffffff

Mems_allowed:   00000000,00000001