Linux下如何查杀stopped进程详解

前言

在Linux系统下面，top命令可以查看查看stopped进程。但是不能查看stopped进程的详细信息。那么如何查看stopped 进程，并且杀掉这些stopped进程呢？

 ps -e j | grep T 

stopped进程的STAT状态为T，一般而言,进程有下面这些状态码:

D uninterruptible sleep (usually IO)

I Idle kernel thread

R running or runnable (on run queue)

S interruptible sleep (waiting for an event to complete)

T stopped by job control signal

t stopped by debugger during the tracing

W paging (not valid since the 2.6.xx kernel)

X dead (should never be seen)

Z defunct (“zombie”) process, terminated but not reaped by its parent

For BSD formats and when the stat keyword is used, additional characters may be displayed:

< high-priority (not nice to other users)

N low-priority (nice to other users)

L has pages locked into memory (for real-time and custom IO)

s is a session leader

l is multi-threaded (using CLONE_THREAD, like NPTL pthreads do)

+ is in the foreground process group

一般较常见的是5种状态码:

D 不可中断 uninterruptible sleep (usually IO)

R 运行 runnable (on run queue)

S 中断 sleeping

T 停止 traced or stopped

Z 僵死 a defunct (”zombie”) process

所以，可以用下面命令ps -A -ostat,ppid,pid,cmd | grep -e '^[T]' 查看stopped的进程信息。如下所示：

# ps -A -ostat,ppid,pid,cmd | grep -e '^[T]'
 
T  6777 8635 more alert_pps.log
T  6777 9654 tail -60f alert_pps.log
T  6777 10724 top
# kill -9 8635
# ps -A -ostat,ppid,pid,cmd | grep -e '^[T]'
T  6777 9654 tail -60f alert_pps.log
T  6777 10724 top
# kill -9 9654
# kill -9 10724

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