linux如何查看一个进程的堆栈

转自：http://blog.csdn.net/nanjingligong/article/details/8624739

方法一：pstack pid
NAME
pstack - print a stack trace of a running process

SYNOPSIS
pstack pid

DESCRIPTION
pstack attaches to the active process named by the pid on the command line, and prints out an execution stack trace. If ELF symbols exist in the binary (usually the case
unless you have run strip(1)), then symbolic addresses are printed as well.

If the process is part of a thread group, then pstack will print out a stack trace for each of the threads in the group.

SEE ALSO
nm(1), ptrace(2), gdb(1)

方法二:gstack pid
NAME
gstack - print a stack trace of a running process

SYNOPSIS
gstack pid

DESCRIPTION
gstack attaches to the active process named by the pid on the command line, and prints out an execution stack trace. If ELF symbols exist in the binary (usually the case
unless you have run strip(1)), then symbolic addresses are printed as well.

If the process is part of a thread group, then gstack will print out a stack trace for each of the threads in the group.

SEE ALSO
nm(1), ptrace(2), gdb(1)

方法三：
使用gdb 然后attach 进程ID，然后再使用命令 thread apply all bt。

方法一和方法二一样，方法三可以查看更多的信息。