[Bug libc/4737] fork is not async-signal-safe

["tom dot honermann at oracle dot com" <sourceware-bugzilla at sourceware dot org>]

------- Additional Comments From tom dot honermann at oracle dot com  2008-11-19 01:37 -------
(In reply to comment #13)
> Tom's suggestion: "Another possible solution for this problem would be to just
> not call atfork registered handlers at all if fork is called from within the
> context of a signal handler."
> 
> ... seems to be what the IEEE interpretation recommends and I've thought as well
> that it might be a potential solution.  
> 
> Ulrich will have to decide whether this is an approach he'd accept.

Thanks for the links Ryan!

Does anyone have any suggests for how a thread can determine that it is running
in a signal handler?  Does glibc maintain a thread specific indicator that a
thread is running a signal handler?  I've been looking at the glibc code (struct
pthread in particular) and I don't see an obvious indicator there.

-- 


http://sourceware.org/bugzilla/show_bug.cgi?id=4737

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