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bug#32537: 26.1.50; Tramp: Cursor jumps when typing during asynchronous
From: |
Eli Zaretskii |
Subject: |
bug#32537: 26.1.50; Tramp: Cursor jumps when typing during asynchronous find-file |
Date: |
Wed, 29 Aug 2018 17:49:33 +0300 |
> From: Gemini Lasswell <gazally@runbox.com>
> Cc: 32537@debbugs.gnu.org
> Date: Tue, 28 Aug 2018 12:48:28 -0700
>
> Eli Zaretskii <eliz@gnu.org> writes:
>
> > I guess some code in the background thread calls a yielding function
> > inside save-excursion or something? I'd try running with a breakpoint
> > in set_point_both and temp_set_point_both, with commands that show the
> > backtrace and immediately continue the program. Then you might see
> > the culprit.
>
> Here is an excerpt from my gdb output from following your instructions.
> (I made the breakpoints conditional on the buffer being *scratch*.)
Thanks.
> It looks like your guess is correct, since there is a save-excursion
> in tramp-sh-handle-file-attributes wrapping code that executes
> commands on the remote machine.
Hmm... does that mean tramp-sh-handle-file-attributes runs with
*scratch* is its current buffer? It was *scratch* that you were
typing into when this point jumps happened, right? It's strange that
Tramp uses the current buffer for its processing, but Michael should
know.
If tramp-sh-handle-file-attributes is not using *scratch*, then we'll
need to find some other code in the functions run in backtrace that
does.
> Thread 1 "find-file /scp:" hit Breakpoint 4, set_point_both (charpos=195,
> bytepos=195) at intervals.c:1826
> 1826 {
> "electric-indent-post-self-insert-function" (0xf9420)
> "self-insert-command" (0xf9620)
> "funcall-interactively" (0xf9618)
> "call-interactively" (0xf98f0)
> "command-execute" (0xf9c08)
Wait a minute, why does self-insert-command run in a non-main thread?
Could it be that somehow a non-main thread started receiving and
interpreting your keyboard input? (The "find-file /scp:" thread is
not the main thread, right?)
- bug#32537: 26.1.50; Tramp: Cursor jumps when typing during asynchronous find-file, Gemini Lasswell, 2018/08/26
- bug#32537: 26.1.50; Tramp: Cursor jumps when typing during asynchronous find-file, Eli Zaretskii, 2018/08/26
- bug#32537: 26.1.50; Tramp: Cursor jumps when typing during asynchronous find-file, Gemini Lasswell, 2018/08/28
- bug#32537: 26.1.50; Tramp: Cursor jumps when typing during asynchronous find-file,
Eli Zaretskii <=
- bug#32537: 26.1.50; Tramp: Cursor jumps when typing during asynchronous find-file, Gemini Lasswell, 2018/08/29
- bug#32537: 26.1.50; Tramp: Cursor jumps when typing during asynchronous find-file, Eli Zaretskii, 2018/08/29
- bug#32537: 26.1.50; Tramp: Cursor jumps when typing during asynchronous find-file, Gemini Lasswell, 2018/08/30
- bug#32537: 26.1.50; Tramp: Cursor jumps when typing during asynchronous find-file, Eli Zaretskii, 2018/08/31
- bug#32537: 26.1.50; Tramp: Cursor jumps when typing during asynchronous find-file, Gemini Lasswell, 2018/08/31