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bug#10664: 24.0.93; JIT font-lock infloops in a C file
From: |
Eli Zaretskii |
Subject: |
bug#10664: 24.0.93; JIT font-lock infloops in a C file |
Date: |
Mon, 06 Feb 2012 19:04:17 +0200 |
> Date: Mon, 6 Feb 2012 11:09:57 +0000
> Cc: 10664@debbugs.gnu.org
> From: Alan Mackenzie <acm@muc.de>
>
> I got something similar for this socket.c. I load it into emacs -Q, then
> start scrolling downwards, a page at a time. The first five scrolls are
> fine. Then it hangs on the sixth.
>
> However, typing C-g (maybe twice) frees it up, and it does the scroll.
> Careful perusal reveals that the fontification is incomplete. From now
> on, most key sequences must be followed by C-g to perform their commands.
> ;-(.
>
> Did you actually try C-g when your session hung?
I'm quite sure I did. But that was on Windows, where C-g is less
powerful than on Posix platforms (since keyboard input is not
interrupt driven). So it could be that what you can interrupt on
GNU/Linux, I cannot on Windows.
> I was able to run elp on this, and I've a fairly good idea where it's got
> stuck, but not yet why.
Let me know if you need any further help.
> > > I still have that session in a debugger, so if someone wants me to
> > > look around and show some values, I can do that.
>
> I'm not sure I'd be able to make much out of debugger results. I'm not
> familiar enough with the internals of Emacs. :-(
That's good, because I needed to kill that session in order to rebuild
Emacs.
> Can you restart this Emacs session?
No, but I can start another and do the same (i.e. wait for it to hang
in the same way). The problem is reproducible in my configuration.
But I think it would be better to wait for you to fix that problem you
are zeroing in, and then see if it also fixes my hangs.
Thanks.
- bug#10664: 24.0.93; JIT font-lock infloops in a C file, Eli Zaretskii, 2012/02/05
- bug#10664: 24.0.93; JIT font-lock infloops in a C file, Alan Mackenzie, 2012/02/06
- bug#10664: 24.0.93; JIT font-lock infloops in a C file, Stefan Monnier, 2012/02/06
- bug#10664: 24.0.93; JIT font-lock infloops in a C file,
Eli Zaretskii <=
- bug#10664: 24.0.93; JIT font-lock infloops in a C file, Eli Zaretskii, 2012/02/07
- bug#10664: 24.0.93; JIT font-lock infloops in a C file, Alan Mackenzie, 2012/02/07
- bug#10664: 24.0.93; JIT font-lock infloops in a C file, Eli Zaretskii, 2012/02/07
- bug#10664: 24.0.93; JIT font-lock infloops in a C file, Alan Mackenzie, 2012/02/07
- bug#10664: 24.0.93; JIT font-lock infloops in a C file, Stefan Monnier, 2012/02/07
- bug#10664: 24.0.93; JIT font-lock infloops in a C file, Alan Mackenzie, 2012/02/08
- bug#10664: 24.0.93; JIT font-lock infloops in a C file, Eli Zaretskii, 2012/02/08
- bug#10664: 24.0.93; JIT font-lock infloops in a C file, Stefan Monnier, 2012/02/08
- bug#10664: 24.0.93; JIT font-lock infloops in a C file, Alan Mackenzie, 2012/02/10
- bug#10664: 24.0.93; JIT font-lock infloops in a C file, Eli Zaretskii, 2012/02/12