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Editorial Team
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Asked: 2026-06-11T14:50:39+00:00

Is there a way to print stacktrace of all threads without attaching GDB? Or

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Is there a way to print stacktrace of all threads without attaching GDB?

Or is there a command which I can use as gdb batch mode to print stacktrace of all threads?

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  1. Editorial Team

    There is a thread apply all command in GDB:

    (gdb) thread apply all bt
Thread 12 (Thread 0x7f7fe2116700 (LWP 5466)):
#0  sem_wait () at ../nptl/sysdeps/unix/sysv/linux/x86_64/sem_wait.S:86
#1  0x0000000000425358 in ?? ()
...
Thread 1 (Thread 0x7f7feabc27c0 (LWP 5465)):
#0  0x00007f7fe76c5203 in select () at ../sysdeps/unix/syscall-template.S:82

    Sadly, GDB seems not to be able to read the commands from a pipe, so to run the commands in its batch mode, a temporary file must be used:

    $ gdbbt() {
  tmp=$(tempfile)
  echo thread apply all bt >"$tmp"
  gdb -batch -nx -q -x "$tmp" -p "$1"
  rm -f "$tmp"
}
$ gdbbt $(pidof $SHELL)

    Then you’ll only "temporarily" attach with gdb and then detach.

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