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bug#9723: 24.0.50; Emacs Clipboard crash

From: Joseph Jones
Subject: bug#9723: 24.0.50; Emacs Clipboard crash
Date: Sat, 11 Feb 2012 17:52:26 -0800


-----Original Message-----
From: Eli Zaretskii [mailto:address@hidden 
Sent: Saturday, February 11, 2012 11:25 AM
To: Joseph Jones
Cc: address@hidden
Subject: Re: bug#9723: 24.0.50; Emacs Clipboard crash

> From: Joseph Jones <address@hidden>
> CC: "address@hidden" <address@hidden>
> Date: Sat, 11 Feb 2012 11:06:51 -0800
> Another data point with this build:
> 1) In GUI mode (I think mostly when connected over RDP), eventually Emacs 
> will lock up using 12.5% CPU and not even running it under GDB will  let me 
> break into the process to see what is up.

If you run it not under GDB, then attaching GDB to it ("gdb -p PID", where PID 
is the process ID of the running Emacs) should interrupt whatever it is doing 
and let you examine the call-stack backtrace.
Are you saying that this is not working?

*** I haven't tried attaching, But if I start Emacs within GDB then I run into 
the issue above.

Anyway, can it be that you have C source files loaded in that Emacs, and you 
have JIT stealth font-lock enabled?  There are some problems in C mode in that 
area at the moment (I had similar lockups myself), so perhaps this is what you 
are hitting.

***  Well, since I do all C/C++ programming then that could be it. I'd hate to 
have to disable C-mode though...

> 24 is almost useless for me right now, at least when working remotely 
> (which I have to do to connected to some of my machines). It would 
> suck to have to abandon Emacs on Windows. I have NEVER had Emacs crash 
> on any other platform in almost 20 years of usage (really lucky I 
> guess) but the last 5 months have seen it almost unusable. :-(

I'm sorry for your trouble.  I can only say that no one else reported anything 
similar for this version.  You can always go back to Emacs 23 if you find this 

*** 23 still repros the clipboard and I prefer 24 for other reason. Just 
venting, sorry.

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