bug#25279: 26.0.50; Slowdown/crash on certain characters

[Richard Copley]

retitle 25279 26.0.50; SendMessage critical section deadlock
thanks

On 21 February 2017 at 20:33, Richard Copley <rcopley@gmail.com> wrote:
> retitle 25279 26.0.50; calling SendMessage inside critical section
> causes deadlock
> thanks
>
> On 21 February 2017 at 20:28, Eli Zaretskii <eliz@gnu.org> wrote:
>>> From: Richard Copley <rcopley@gmail.com>
>>> Date: Tue, 21 Feb 2017 20:05:28 +0000
>>> Cc: 25279@debbugs.gnu.org
>>>
>>> Here's how to make Emacs hang without the need to uninstall any fonts,
>>> on Windows (not reproducible on GNU/Linux).
>>> 1. Type "M-x view-hello-file" (don't press return).
>>> 2. In quick succession, type "C-m" and then "C-g". *
>>
>> Thanks.
>>
>>> Eli, should I retitle this bug to "26.0.50; calling SendMessage inside
>>> critical section causes deadlock", or close this bug as a duplicate of
>>> the other "slow fonts on Windows" bugs and file a new report about
>>> the hanging?
>>
>> The former, I guess.  I will take a look when I have time.
>
> Thanks.
>
>>> Emacs master has a pronounced tendency to hang in various other
>>> circumstances too.
>>
>> Showing backtraces from the relevant threads when it hangs would be
>> appreciated.
>
> OK, I'll run Emacs in the debugger for a few weeks.