Re: Fun with LD_PRELOAD

[Pedro Alves <palves@redhat.com>]

(removed guile)

As we're talking about it,

On 02/05/2014 06:21 PM, Doug Evans wrote:

> For example, a colleague at Google tripped over a bug that requires a
> specific timing to replicate.  I don't have all the details at hand,
> but I think I'm hitting the same assert.
> 
> infrun.c:1948: internal-error: resume: Assertion
> `pc_in_thread_step_range (pc, tp)' failed.
> 
> AIUI, It happens, for example, when the user does a "next", and a
> signal arrives on another thread while the thread being next'd has
> stepped into a subroutine (thus requiring gdb to step out to implement
> the semantics of "next").  I now have a simple repro (at least for the
> assert I'm seeing), and it was very straightforward to write.  It
> involves tracking the PTRACE_SINGLESTEP being issued to one thread
> (that implement "next") and at the right time send a signal to another
> thread.

perhaps you could check whether the patch at

  https://sourceware.org/ml/gdb-patches/2014-01/msg00910.html

also fixes your reproducer?

-- 
Pedro Alves