On 01/04/2016 07:27 AM, Eli Zaretskii wrote:
>> From: Daniel Colascione <dancol@dancol.org>
>> Date: Sun, 3 Jan 2016 13:31:49 -0800
>>
>> I'd also support doing no auto-save at crash time. Auto-save should
>> happen frequently enough anyway that users shouldn't lose much data when
>> a crash happens, and not auto-saving sidesteps a lot of robustness concerns.
> 
> I have my auto-save-timeout customized to 15 since about forever, but
> I don't know what others will say about that.  We should ask users
> before changing this.
> 
> In any case, disabling auto-save at crash time is out of the question,
> IMO.  Precious stuff could come into a buffer from some fast source,
> such as a program or a network connection, and in that case even
> several seconds worth of data could be a lot.  Removing auto-save from
> the emergency shut down would be a terrible mistake.

Emacs is not a safety-critical system. If you need guaranteed recording
of a fast data stream, use something else.