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* bug#17642: pre-command-hook has thousands of `clear-transient-map' in 24.3.91.1
@ 2014-05-30 13:19 Le Wang
  2014-05-30 19:55 ` Stefan Monnier
  0 siblings, 1 reply; 6+ messages in thread
From: Le Wang @ 2014-05-30 13:19 UTC (permalink / raw)
  To: 17642

I've seen this bug:
http://emacs.1067599.n5.nabble.com/bug-17168-24-3-50-Segfault-at-mark-object-td319032.html

I'm not sure if it's related to what I'm seeing.  If I remove all
`clear-transient-map'  from my pre-command-hook, they come back in
quick order.

-- 
Le





^ permalink raw reply	[flat|nested] 6+ messages in thread

* bug#17642: pre-command-hook has thousands of `clear-transient-map' in 24.3.91.1
  2014-05-30 13:19 bug#17642: pre-command-hook has thousands of `clear-transient-map' in 24.3.91.1 Le Wang
@ 2014-05-30 19:55 ` Stefan Monnier
  2014-05-30 21:52   ` Thierry Volpiatto
  2014-06-01  2:35   ` Le Wang
  0 siblings, 2 replies; 6+ messages in thread
From: Stefan Monnier @ 2014-05-30 19:55 UTC (permalink / raw)
  To: Le Wang; +Cc: 17642

> I'm not sure if it's related to what I'm seeing.  If I remove all
> `clear-transient-map'  from my pre-command-hook, they come back in
> quick order.

That's weird.  Do you see any strange message in *Messages*?


        Stefan





^ permalink raw reply	[flat|nested] 6+ messages in thread

* bug#17642: pre-command-hook has thousands of `clear-transient-map' in 24.3.91.1
  2014-05-30 19:55 ` Stefan Monnier
@ 2014-05-30 21:52   ` Thierry Volpiatto
  2014-05-31  1:36     ` Stefan Monnier
  2014-06-01  2:35   ` Le Wang
  1 sibling, 1 reply; 6+ messages in thread
From: Thierry Volpiatto @ 2014-05-30 21:52 UTC (permalink / raw)
  To: 17642

Stefan Monnier <monnier@iro.umontreal.ca> writes:

>> I'm not sure if it's related to what I'm seeing.  If I remove all
>> `clear-transient-map'  from my pre-command-hook, they come back in
>> quick order.
>
> That's weird.  Do you see any strange message in *Messages*?

Helm is using `set-transient-map' a lot and it seems `set-transient-map'
doesn't remove properly its `clearfun' from `pre-command-hook' or more
exactly the `clearfun' doesn't remove itself from `pre-command-hook'.
So the many entries found in `pre-command-hook' may come from this.

BTW `set-transient-map' description in info is not accorded to its
docstring.

-- 
Thierry
Get my Gnupg key:
gpg --keyserver pgp.mit.edu --recv-keys 59F29997 






^ permalink raw reply	[flat|nested] 6+ messages in thread

* bug#17642: pre-command-hook has thousands of `clear-transient-map' in 24.3.91.1
  2014-05-30 21:52   ` Thierry Volpiatto
@ 2014-05-31  1:36     ` Stefan Monnier
       [not found]       ` <87egza34kw.fsf@gmail.com>
  0 siblings, 1 reply; 6+ messages in thread
From: Stefan Monnier @ 2014-05-31  1:36 UTC (permalink / raw)
  To: Thierry Volpiatto; +Cc: 17642

> Helm is using `set-transient-map' a lot and it seems `set-transient-map'
> doesn't remove properly its `clearfun' from `pre-command-hook' or more
> exactly the `clearfun' doesn't remove itself from `pre-command-hook'.

Clearly, that's what we see, but the question is "why".  The code does do

                (remove-hook 'pre-command-hook clearfun)

so why is this code not run?

Maybe it's because of the new condition:

                       ((not (eq map (cadr overriding-terminal-local-map)))
                        ;; There's presumably some other transient-map in
                        ;; effect.  Wait for that one to terminate before we
                        ;; remove ourselves.
                        ;; For example, if isearch and C-u both use transient
                        ;; maps, then the lifetime of the C-u should be nested
                        ;; within isearch's, so the pre-command-hook of
                        ;; isearch should be suspended during the C-u one so
                        ;; we don't exit isearch just because we hit 1 after
                        ;; C-u and that 1 exits isearch whereas it doesn't
                        ;; exit C-u.
                        t)

IOW, could it be that Helm keeps adding new transient-maps, rather than
follow the usual "nesting" of transient maps?


        Stefan





^ permalink raw reply	[flat|nested] 6+ messages in thread

* bug#17642: pre-command-hook has thousands of `clear-transient-map' in 24.3.91.1
       [not found]           ` <871tv9orbu.fsf@gmail.com>
@ 2014-05-31 20:04             ` Stefan Monnier
  0 siblings, 0 replies; 6+ messages in thread
From: Stefan Monnier @ 2014-05-31 20:04 UTC (permalink / raw)
  To: Thierry Volpiatto; +Cc: 17642-done

[ I see you dropped 17642@debbugs.gnu.org from the Cc, please try not
  to do that, so the debugging gets recorded in the bug-tracker.  ]

>> Could you remove this workaround and try the patch below instead?
> Done, seems to work fine.

Great, thanks, installed,


        Stefan





^ permalink raw reply	[flat|nested] 6+ messages in thread

* bug#17642: pre-command-hook has thousands of `clear-transient-map' in 24.3.91.1
  2014-05-30 19:55 ` Stefan Monnier
  2014-05-30 21:52   ` Thierry Volpiatto
@ 2014-06-01  2:35   ` Le Wang
  1 sibling, 0 replies; 6+ messages in thread
From: Le Wang @ 2014-06-01  2:35 UTC (permalink / raw)
  To: Stefan Monnier; +Cc: 17642

Patch Stefan installed fixes the problem for me.

http://git.savannah.gnu.org/cgit/emacs.git/commit/?h=emacs-24&id=d8a8adcdff43078b28ba68da6578a6c65d991ab7

Thanks all.

On Fri, May 30, 2014 at 3:55 PM, Stefan Monnier
<monnier@iro.umontreal.ca> wrote:
>> I'm not sure if it's related to what I'm seeing.  If I remove all
>> `clear-transient-map'  from my pre-command-hook, they come back in
>> quick order.
>
> That's weird.  Do you see any strange message in *Messages*?
>
>
>         Stefan



-- 
Le





^ permalink raw reply	[flat|nested] 6+ messages in thread

end of thread, other threads:[~2014-06-01  2:35 UTC | newest]

Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2014-05-30 13:19 bug#17642: pre-command-hook has thousands of `clear-transient-map' in 24.3.91.1 Le Wang
2014-05-30 19:55 ` Stefan Monnier
2014-05-30 21:52   ` Thierry Volpiatto
2014-05-31  1:36     ` Stefan Monnier
     [not found]       ` <87egza34kw.fsf@gmail.com>
     [not found]         ` <jwvoaye9fdu.fsf-monnier+emacsbugs@gnu.org>
     [not found]           ` <871tv9orbu.fsf@gmail.com>
2014-05-31 20:04             ` Stefan Monnier
2014-06-01  2:35   ` Le Wang

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