Re: [PATCHSET ptrace] ptrace: implement PTRACE_SEIZE/INTERRUPT andgroup stop notification, take#4

From: Tejun Heo
Date: Thu Jun 02 2011 - 08:31:17 EST

Hello, Oleg.

On Wed, Jun 01, 2011 at 02:39:03PM +0900, Tejun Heo wrote:
> I'll test different corner cases (different thread doing
> waking/sleeping, race against INTERRUPT kind of things) and let you
> know how it goes.

I've tested threaded one and INTERRUPT immediate re-triggering and at
least the apparent cases work fine. I've re-generated the git tree on
top of 3.0-rc1 with the updated patches.

git:// review-ptrace-seize

The commit ID should be 7eae14288e745cfaabeb035fa67f89eb63a1aff7. As
git.korg seems to be taking quite a while to sync, it might be a
better idea to pull from master.korg.

ssh:// review-ptrace-seize

IIRC, pending issues are...

* Which signo to use in exit_code on STOP traps.

* Implicit signal on clone.

* What to do about events which are reported by genuine SIGTRAP

* Group leader exit issue.


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