On Sat, 14 Mar 2015, Tobias Stoeckmann wrote:

> The signal handler is installed before curl_jmpenv is initialized. This
> means that an already installed alarm timer could trigger the newly
> installed signal handler, leading to undefined behavior when it accesses the
> uninitialized curl_jmpenv.

Thanks a lot. Lovely catch and awesome explanation. Merged and pushed now!

-- 
  / daniel.haxx.se
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