bug#16676: 24.3.50; Repeated but random hang

[Jan D.]

Hi.

8 feb 2014 kl. 11:56 skrev Eli Zaretskii <eliz@gnu.org>:

>> From: Lars Ingebrigtsen <larsi@gnus.org>
>> Cc: 16676@debbugs.gnu.org
>> Date: Sat, 08 Feb 2014 02:23:50 -0800
>> 
>> Eli Zaretskii <eliz@gnu.org> writes:
>> 
>>> Xlib obviously thinks otherwise, the error message in the backtrace is
>>> very clear.
>> 
>> Well, might not something have scribbled something somewhere to make X
>> believe the window is no longer viable?
> 
> I'm not an expert on this, so I don't know.  Jan, can you comment,
> please?

The io error handler is only called for fatal errors.  Any system call related 
to io in Xlib that fails
triggers a call to the error handler.  Xlib can not recover from this, so the 
connection is lost.
If something writes garbage into Xlibs data, anything can happen.

    Jan D.