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SubjectRe: [RFC] Proposal for ptrace improvements
On Tue, 01 Mar 2011 23:14:14 +0100, Denys Vlasenko wrote:
> On Tue, Mar 1, 2011 at 8:06 PM, Jan Kratochvil <> wrote:
> > Currently it is already a problem that apps did not / do not expect the first
> > waitpid after PTRACE_ATTACH may not be SIGSTOP.
> That's exactly why we want to add a better alternative, which doesn't
> insert that blasted SIGSTOP.

But it insteads blasted SIGTRAP (or some other signal) instead.

It would be best if such PTRACE_SEIZE (similar to PTRACE_INTERRUPT) would
guarantee the first waitpid afterwards returns the artificial signal from


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