bug#24201: 25.1.50; TLS connections sometimes hang

[Lars Ingebrigtsen]

Eli Zaretskii <eliz@gnu.org> writes:

>> I'm pretty sure it's this:
>> 
>>      (while (and (memq (process-status stream) '(open run))
>>                  (not (re-search-forward end-of-command nil t)))
>>        (accept-process-output stream 0.05)
>>        (goto-char start))
>
> Any idea why this loops?  Does the other end not respond or something?

I'm not sure -- I haven't been able to debug that at all.  Since C-g
doesn't work (and it happens so rarely and I have to catch it before the
peer hangs up), it makes it awkward...

>> But I do not understand why C-g doesn't work: I've tried to follow the
>> call chain, and I can see no instances of binding `inhibit-quit'...
>
> Is inhibit-quit in fact nil or not inside this loop?

Looking at the code, I can't see any signs of it being inhibited here,
but I'm waiting for the next time it happens so that I can inspect with
gdb...

-- 
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   bloggy blog: http://lars.ingebrigtsen.no