Re: [PATCH] ptrace: add ability to get clear_tid_address

[Oleg Nesterov]

On 02/08, Pedro Alves wrote:
>
> I just tried it.  This is &pthread->tid in glibc/libpthread, so with debug
> info it's easy to figure out where to set the watchpoint manually with gdb
> without asking the kernel.  Doesn't work.  ptrace doesn't show any trap
> for the kernel writes.

The tracee simply can't report this trap. it is already dead ;) and
hw breakpoint (used by ptrace) is "pinned" to the thread.

Oleg.

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/