How do I get the backtrace for all the threads in GDB?

Question

Is there an equivalent command in GDB to that of WinDbg's !process 0 7?

I want to extract all the threads in a dump file along with their backtraces in GDB. info threads doesn't output the stack traces. So, is there a command that does?

Answer 1

Is there a command that does?

thread apply all where

Answer 2

Generally, the backtrace is used to get the stack of the current thread, but if there is a necessity to get the stack trace of all the threads, use the following command.

thread apply all bt

Answer 3

When debugging with several threads, it is also useful to switch to a particular thread number and get the backtrace for that thread only.

From the GNU GDB threads documentation

For debugging purposes, GDB associates its own thread number--a small integer assigned in thread-creation order--with each thread in your program.

Usage:

info threads

Then identify the thread that you want to look at.

thread <thread_id>

Finally, use backtrace for just that thread:

bt

Answer 4

If your process is running:

pstack $pid