Threads (Debugging with GDB)Whenever GDB detects a new thread in your program, it displays the target system’s identification for the thread with a message in the form ‘ [New systag] ’, …

The command argument thread-id is the GDB thread ID, as shown in the first field of the ‘ info threads ’ display, with or without an inferior qualifier (e.g., ‘ 2.1 ’ or ‘ 1 ’).

Whenever GDB detects a new thread in your program, it displays both GDB's thread number and the target system's identification for the thread with a message in the form ` [New systag]'. …

the gdb id for the thread: this is the id you should use when specify gdb commands for a single thread. The correspondence between the threads can differ from one OS and pthread library …

(gdb) info threads (gdb) thread 1 Thread ID 1 not known. Use the "info threads" command to see the IDs of currently known threads. The gdb thread debugging facility allows you to observe all …

Debugging with GDB: ThreadsOn Solaris, you can display more information about user threads with a Solaris-specific command: maint info sol-threads Display info on Solaris user threads. …

Learn GDB commands for debugging multithreaded programs. List threads with info threads and view backtraces for different threads with thread apply bt.

The specific relationship between thread IDs can differ from one OS and Pthreads library implementation to another, but on most systems there is a one-to-one-to-one correspondence …