[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
bug#21556: 25.0.50; Memory leak in emacs -Q with lucid (font)
From: |
Dima Kogan |
Subject: |
bug#21556: 25.0.50; Memory leak in emacs -Q with lucid (font) |
Date: |
Thu, 29 Oct 2015 15:51:38 -0700 |
Dmitry Antipov <dmantipov@yandex.ru> writes:
> On 10/01/2015 09:50 PM, Dima Kogan wrote:
>
>> OK, so are you suggesting changing how mark_face_cache() works? How bad
>> is it to accept that fonts and font entities are not necessarily linked,
>> and to install the latest patch in this bug?
>
> I'm suggesting to check whether there are unmarked font objects after marking
> from Vfontset_table, and, if so, understand whether it's correct. Otherwise
> your patch, even being correct by itself, may just hide subtle GC bug.
Hi. I looked at this again. Running the same test as before (emacs -Q,
repeatedly creating/destroying client frame) I see:
- entities are created with each new client frame but are /never/
marked.
- entity-creation backtrace is always
#0 0x000000000060e74e in font_make_entity () at font.c:173
#1 0x00000000006793ae in ftfont_pattern_entity (p=0xf8c180, extra=20784563)
at ftfont.c:215
#2 0x000000000067b952 in ftfont_list (f=0x13fb8c0, spec=13463989) at
ftfont.c:1057
#3 0x0000000000680de6 in xftfont_list (f=0x13fb8c0, spec=13463989) at
xftfont.c:138
#4 0x0000000000615ebc in font_list_entities (f=0x13fb8c0, spec=20978277) at
font.c:2780
#5 0x0000000000617c27 in font_find_for_lface (f=0x13fb8c0,
attrs=0x7fff3ee81f50, spec=20082933, c=-1) at font.c:3262
#6 0x0000000000617fb0 in font_load_for_lface (f=0x13fb8c0,
attrs=0x7fff3ee81f50, spec=20082933) at font.c:3335
#7 0x00000000006183a2 in font_open_by_spec (f=0x13fb8c0, spec=20082933) at
font.c:3429
#8 0x0000000000618415 in font_open_by_name (f=0x13fb8c0, name=13702436) at
font.c:3440
#9 0x000000000052fec4 in x_default_font_parameter (f=0x13fb8c0,
parms=20784979) at xfns.c:2904
#10 0x0000000000530bc2 in Fx_create_frame (parms=20784979) at xfns.c:3139
- Vfontset_table has fontsets and font-specs in it, but NO
font-entities. Marking from the Vfontset_table thus cannot mark any
font entities.
Where are the entities supposed to be referenced? Does it make sense
they're never marked?
- bug#21556: 25.0.50; Memory leak in emacs -Q with lucid (font), Dima Kogan, 2015/10/03
- bug#21556: 25.0.50; Memory leak in emacs -Q with lucid (font), Dmitry Antipov, 2015/10/08
- bug#21556: 25.0.50; Memory leak in emacs -Q with lucid (font), Dima Kogan, 2015/10/08
- bug#21556: 25.0.50; Memory leak in emacs -Q with lucid (font), Dmitry Antipov, 2015/10/08
- bug#21556: 25.0.50; Memory leak in emacs -Q with lucid (font), Dima Kogan, 2015/10/08
- bug#21556: 25.0.50; Memory leak in emacs -Q with lucid (font), Dmitry Antipov, 2015/10/08
- bug#21556: 25.0.50; Memory leak in emacs -Q with lucid (font), Dima Kogan, 2015/10/08
- bug#21556: 25.0.50; Memory leak in emacs -Q with lucid (font),
Dima Kogan <=
- bug#21556: 25.0.50; Memory leak in emacs -Q with lucid (font), Eli Zaretskii, 2015/10/30
- bug#21556: 25.0.50; Memory leak in emacs -Q with lucid (font), Dima Kogan, 2015/10/30
- bug#21556: 25.0.50; Memory leak in emacs -Q with lucid (font), Eli Zaretskii, 2015/10/30
- bug#21556: 25.0.50; Memory leak in emacs -Q with lucid (font), Dima Kogan, 2015/10/30
bug#21556: 25.0.50; Memory leak in emacs -Q with lucid (font), Eli Zaretskii, 2015/10/08