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bug#13836: 24.3.50; `put-text-property' creates lock files for indirect
From: |
Dmitry Gutov |
Subject: |
bug#13836: 24.3.50; `put-text-property' creates lock files for indirect buffer despite `with-silent-modifications' |
Date: |
Wed, 27 Feb 2013 21:36:25 +0400 |
1. Open a file that has some syntax highlighting in the associated mode
(e.g. ~/test.js, in js-mode).
2. (switch-to-buffer (make-indirect-buffer (current-buffer) "foo"))
3. M-x js-mode
4. Observe the created .#test.js symlink.
* (buffer-modified-p) returns nil in both buffers.
* The lock file won't be removed when the indirect and the base buffer
are killed, and even after Emacs is killed.
* If I remove the lock file manually, it will be re-created each time
`put-text-property' is called.
* Possibly related to Bug#3038.
* Reproduces in 24.2 and 23.4, so not a regression, as far as 24.3 is
concerned.
Here's a typical Lisp-level backtrace:
(gdb) xbacktrace
"put-text-property" (0xffff7ea0)
"jit-lock-refontify" (0xffff83b0)
"jit-lock-mode" (0xffff88e0)
"jit-lock-register" (0xffff8de0)
"font-lock-turn-on-thing-lock" (0xffff92f0)
"font-lock-mode-internal" (0xffff97f0)
"font-lock-default-function" (0xffff9cf0)
"font-lock-mode" (0xffffa1f0)
"turn-on-font-lock" (0xffffa6d0)
"turn-on-font-lock-if-desired" (0xffffabc0)
"global-font-lock-mode-enable-in-buffers" (0xffffb148)
"run-hooks" (0xffffb230)
"run-mode-hooks" (0xffffb730)
"js-mode" (0xffffbc40)
(Same thing happens inside `syntax-propertize', so it's not just jit-lock).
Abbreviated C backtrace:
(gdb) backtrace
#0 lock_file (fn=26156449) at filelock.c:615
#1 0x0000000000630043 in prepare_to_modify_buffer (start=1, end=38,
preserve_ptr=0x0) at insdel.c:1829
#2 0x000000000062faf0 in modify_region_1 (start=1, end=38,
preserve_chars_modiff=true) at insdel.c:1763
#3 0x0000000000759df0 in modify_region (buffer=40447669, start=4, end=152)
at textprop.c:97
#4 0x000000000075e9f0 in Fadd_text_properties (start=4, end=152,
properties=39370150, object=40447669) at textprop.c:1178
#5 0x000000000075ee63 in Fput_text_property (start=4, end=152,
property=15828690, value=15589922, object=15589922) at textprop.c:1240
#6 0x00000000006ba77c in Ffuncall (nargs=5, args=0x7fffffff7e98)
at eval.c:2691
#7 0x000000000072bf41 in exec_byte_code (bytestr=13193993, vector=13194165,
maxdepth=24, args_template=15589922, nargs=0, args=0x0) at bytecode.c:898
In GNU Emacs 24.3.50.1 (x86_64-unknown-linux-gnu, GTK+ Version 3.6.0)
of 2013-02-27 on vbx
Bzr revision: 111886 michael.albinus@gmx.de-20130227092013-ragyq0ly29qocc47
Windowing system distributor `The X.Org Foundation', version 11.0.11300000
System Description: Ubuntu 12.10
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- bug#13836: 24.3.50; `put-text-property' creates lock files for indirect buffer despite `with-silent-modifications',
Dmitry Gutov <=