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Re: FYI: fix 2 tests when glibc debuginfo is installed

On Fri, 14 Oct 2011 23:19:09 +0200, Pedro Alves wrote:
> On Friday 14 October 2011 20:37:05, Jan Kratochvil wrote:
> > thanks; although these testcases are broken anyway, they should be updated for
> > Linux kernels 3.1.x which always keep inferior stopped if it was stopped
> > during PTRACE_ATTACH; probably to XFAIL older kernels.
> Urgh.  Even if you SIGCONT the process before PTRACE_DETACH?

Yes.  But I do not think it is problem, one can SIGCONT it safely after
PTRACE_DETACH.  Just it may be (T)-stopped for a moment but why not.

The opposite - the upstream 2.6.x kernel state - was IMO worse, it was resumed
and one could not safely keep it stopped.

> Why was the behavior changed incompatibly if we're having the all new
> PTRACE_SEIZE?  Do you have a lkml reference to the change?

I do not have anything specific, AFAIK it just happened as part of all the
changes incl. PTRACE_SEIZE.  I have updated the behavior into two new *-3x.c
tests with Oleg Nesterov ~review/check/approval in:


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