Posix says "undefined". Re: Signal left blocked after signal handler.

[Bruce Perens]

Linus,

Posix says the behavior is undefined. See 
http://www.opengroup.org/onlinepubs/007904975/functions/sigprocmask.html .
I think it makes sense to leave the 2.6 behavior as it is.

   Thanks

   Bruce

Linus Torvalds wrote:

> I personally think it is "good taste" to actually set the SA_NODEFER flag

> if you know you depend on the behaviour, but if there are lots of existing
>
> applications that actually depend on the "forced punch-through" behaviour,
> then I'll obviously have to change the 2.6.x behaviour (a stable
> user-level ABI is a lot more important than my personal preferences).
>
> But if ElectricFence is the only thing that cares, I'd rather just EF
> added a SA_NODEFER..
>  


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