Messages in this thread | | | Date | Thu, 3 Feb 2011 22:44:50 +0100 | From | Oleg Nesterov <> | Subject | Re: [PATCH 1/1] ptrace: make sure do_wait() won't hang after PTRACE_ATTACH |
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On 02/03, Roland McGrath wrote: > > IMHO this sort of band-aid does not really help the overall situation. > It takes something that is intricate and fiddly and just fiddles it a > bit more. Userland will still have to handle older kernels where this > behavior is not there. If userland does anything that relies on this > new behavior, then it will have to try somehow to figure out which > kernel versions have which behavior and adapt, etc.
Absolutely agreed.
As I said, I am not sure this patch makes sense. I only sent it because I have to react to the bug report.
> When the old behaviors are unhelpful like this, I think it is really > better to add new mechanisms instead.
Agreed!
Can't resist, let me repeat... imho ptrace is unfixable ;)
OK, please ignore this patch.
Oleg.
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