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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: |
Fri, 31 Aug 2018 09:40:57 +0300 |
> From: Gemini Lasswell <gazally@runbox.com>
> Cc: 32537@debbugs.gnu.org
> Date: Thu, 30 Aug 2018 11:49:27 -0700
>
> Printing the C-level backtraces on every breakpoint makes Emacs under
> gdb too slow to let me reproduce the bug, so I came up with this
> compromise:
>
> break set_point_both if current_thread->m_current_buffer == $1
> commands
> p current_thread
> xbacktrace
> if current_thread != &main_thread
> thread apply 1 5-15 backtrace
The "backtrace" command accepts an argument, the number of frames to
show; so you could use "backtrace 10" to show just the innermost 10
frames, and thus make the backtrace be faster.
> Thread 1 (Thread 0x7f873eb61b40 (LWP 27888)):
> #0 0x00007f87384808cc in __lll_lock_wait () from
> /nix/store/hwwqshlmazzjzj7yhrkyjydxamvvkfd3-glibc-2.26-131/lib/libpthread.so.0
> #1 0x00007f8738479a45 in pthread_mutex_lock () from
> /nix/store/hwwqshlmazzjzj7yhrkyjydxamvvkfd3-glibc-2.26-131/lib/libpthread.so.0
> #2 0x0000000000648df9 in sys_mutex_lock (mutex=mutex@entry=0xd455c0
> <global_lock>) at systhread.c:137
> #3 0x0000000000647582 in acquire_global_lock (self=0xd45600 <main_thread>)
> at thread.c:100
This thread, the main thread, is waiting for the global lock to become
free.
> Thread 5 (Thread 0x7f8722610700 (LWP 27981)):
> #0 set_point_both (charpos=146, bytepos=146) at intervals.c:1826
> #1 0x0000000000635f08 in set_point_from_marker (marker=...,
> marker@entry=XIL(0x3e59fc5)) at intervals.c:1771
> #2 0x00000000005bbf32 in Fgoto_char (position=...,
> position@entry=XIL(0x3e59fc5)) at editfns.c:423
> #3 0x00000000005c6920 in save_excursion_restore (marker=XIL(0x3e59fc5),
> window=...) at editfns.c:1023
> #4 0x00000000005cce89 in unbind_to (count=<optimized out>, value=...,
> value@entry=XIL(0)) at eval.c:3593
This thread is restoring point as part as returning from
save-excursion. But I still am not sure whether this is our villain.
Does buffer position 146 sound correct wrt what you see in *scratch*,
i.e. is it the position where point jumps? Also, please add to the
breakpoint commands the command to display the current buffer:
pp current_buffer->name_
Thanks.
- 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, 2018/08/29
- 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 <=
- bug#32537: 26.1.50; Tramp: Cursor jumps when typing during asynchronous find-file, Gemini Lasswell, 2018/08/31