Hello again,

> I believe something wrong happened when Curl_resolver_wait_resolv called with 
> entry=nullptr and it’s still wait’s for a second just to make sure there is 
> no data yet. This happened when I remove cancelled tasks from curl_multi.

By now I’m fixed an issue by adding 
curl_easy_setopt(task->getCurl(), CURLOPT_TIMEOUT_MS, 1); // 1 ms, because 0 
means no value set, and -1 is invalid
Before 
curl_multi_remove_handle(_multi, task->getCurl());

But I believe curl should take care on cancelling active easy handler somewhere 
inside curl_multi_remove_handle. May be I’m wrong.

WBR,
Evgen Bodunov.
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