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bug#21428: 24.5; Crash of emacs on OS X, installed via homebrew cask
From: |
Rainer M Krug |
Subject: |
bug#21428: 24.5; Crash of emacs on OS X, installed via homebrew cask |
Date: |
Mon, 28 Sep 2015 13:12:53 +0200 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/24.5 (darwin) |
Eli Zaretskii <eliz@gnu.org> writes:
>> From: Rainer M Krug <Rainer@krugs.de>
>> Cc: 21428@debbugs.gnu.org, mituharu+bug-gnu-emacs-mac@math.s.chiba-u.ac.jp
>> Date: Mon, 28 Sep 2015 11:33:49 +0200
>>
>> > First, I'd like to know whether the line of code marked below is ever
>> > executed:
>> >
>> > static void
>> > uncache_face (struct face_cache *c, struct face *face)
>> > {
>> > int i = face->hash % FACE_CACHE_BUCKETS_SIZE;
>> >
>> > if (face->prev)
>> > face->prev->next = face->next;
>> > else
>> > c->buckets[i] = face->next;
>> >
>> > if (face->next)
>> > face->next->prev = face->prev;
>> >
>> > c->faces_by_id[face->id] = NULL;
>> > if (face->id == c->used)
>> > --c->used; <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
>> > }
>> >
>> > This is from xfaces.c, line 4322 with the current Git master. Please
>> > put a breakpoint there, and run Emacs under GDB until it crashes as
>> > before, or until this breakpoint breaks. If it breaks, please show
>> > the backtrace.
>>
>> OK - Emacs crashed again (same pattern) and the breakpoint was
>> triggered:
>>
>> ,----
>> | xdisp.c:24333: Emacs fatal error: assertion failed: face != NULL
>
> You mean, the breakpoint did NOT trigger, right? Because I cannot see
> any backtraces from the breakpoint in uncache_face. Did I miss
> something?
No - I missed something. I am new to gdb and sometimes (often?) get
confused.
This is the latest one - and if I understand correctly, again not
triggered.
,----
| xdisp.c:19795: Emacs fatal error: assertion failed: it->method ==
GET_FROM_BUFFER || it->method == GET_FROM_DISPLAY_VECTOR || it->method ==
GET_FROM_STRING
|
| Breakpoint 1, terminate_due_to_signal (sig=6, backtrace_limit=2147483647) at
emacs.c:370
| 370 signal (sig, SIG_DFL);
| (gdb)
`----
>
>> I am sure the crash occurs again, so please let me know what further
>> info you need from the next crash.
>
> If indeed the breakpoint in uncache_face never breaks, please proceed
> to configuring Emacs with --enable-checking='yes,glyphs' and disabling
> the redisplay optimizations, as I've described here:
OK - I will reconfigure then.
>
>> > If this breakpoint never breaks before another crash, please
>> > reconfigure Emacs like this:
>> >
>> > CFLAGS="-ggdb3 -O0" CXXFLAGS="-ggdb3 -O0" LDFLAGS="-ggdb3" ./configure
>> > --enable-checking='yes,glyphs'
reconfiguring.
>> >
>> > then rebuild, and run it after setting these three variables to t:
>> >
>> > inhibit-try-cursor-movement
>> > inhibit-try-window-id
>> > inhibit-try-window-reusing
OK - I evaluated
(setq inhibit-try-cursor-movement t)
(setq inhibit-try-window-id t)
(setq inhibit-try-window-reusing t)
immediately in scratch after starting emacs - is this correct?
>> >
>> > This disables some redisplay optimizations, so you might see slow
>> > redisplay; this is normal. What is important is to see whether the
>> > crashes disappear when these variables are set to non-nil values. If
>> > you run for a long time without crashes, then set these variables to
>> > nil, one by one, in the order they are shown above, and each time let
>> > Emacs run enough time for you to be sure the problem doesn't happen,
>> > before you proceed to the next variable.
OK - running emacs now with all set to t = will keep you posted.
Thanks,
Rainer
>
> Thanks.
--
Rainer M. Krug, PhD (Conservation Ecology, SUN), MSc (Conservation Biology,
UCT), Dipl. Phys. (Germany)
Centre of Excellence for Invasion Biology
Stellenbosch University
South Africa
Tel : +33 - (0)9 53 10 27 44
Cell: +33 - (0)6 85 62 59 98
Fax : +33 - (0)9 58 10 27 44
Fax (D): +49 - (0)3 21 21 25 22 44
email: Rainer@krugs.de
Skype: RMkrug
PGP: 0x0F52F982
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- bug#21428: 24.5; Crash of emacs on OS X, installed via homebrew cask, (continued)
- bug#21428: 24.5; Crash of emacs on OS X, installed via homebrew cask, Eli Zaretskii, 2015/09/24
- bug#21428: 24.5; Crash of emacs on OS X, installed via homebrew cask, Rainer M Krug, 2015/09/24
- bug#21428: 24.5; Crash of emacs on OS X, installed via homebrew cask, Eli Zaretskii, 2015/09/24
- bug#21428: 24.5; Crash of emacs on OS X, installed via homebrew cask, Rainer M Krug, 2015/09/25
- bug#21428: 24.5; Crash of emacs on OS X, installed via homebrew cask, Eli Zaretskii, 2015/09/25
- bug#21428: 24.5; Crash of emacs on OS X, installed via homebrew cask, Rainer M Krug, 2015/09/25
- bug#21428: 24.5; Crash of emacs on OS X, installed via homebrew cask, Rainer M Krug, 2015/09/25
- bug#21428: 24.5; Crash of emacs on OS X, installed via homebrew cask, Eli Zaretskii, 2015/09/25
- bug#21428: 24.5; Crash of emacs on OS X, installed via homebrew cask, Rainer M Krug, 2015/09/28
- bug#21428: 24.5; Crash of emacs on OS X, installed via homebrew cask, Eli Zaretskii, 2015/09/28
- bug#21428: 24.5; Crash of emacs on OS X, installed via homebrew cask,
Rainer M Krug <=
- bug#21428: 24.5; Crash of emacs on OS X, installed via homebrew cask, Rainer M Krug, 2015/09/28
- bug#21428: 24.5; Crash of emacs on OS X, installed via homebrew cask, Eli Zaretskii, 2015/09/28
- bug#21428: 24.5; Crash of emacs on OS X, installed via homebrew cask, Rainer M Krug, 2015/09/29
- bug#21428: 24.5; Crash of emacs on OS X, installed via homebrew cask, Eli Zaretskii, 2015/09/29
- bug#21428: 24.5; Crash of emacs on OS X, installed via homebrew cask, Rainer M Krug, 2015/09/29
- bug#21428: 24.5; Crash of emacs on OS X, installed via homebrew cask, Rainer M Krug, 2015/09/29
- bug#21428: 24.5; Crash of emacs on OS X, installed via homebrew cask, Eli Zaretskii, 2015/09/29
- bug#21428: 24.5; Crash of emacs on OS X, installed via homebrew cask, Rainer M Krug, 2015/09/30
- bug#21428: 24.5; Crash of emacs on OS X, installed via homebrew cask, Eli Zaretskii, 2015/09/28
- bug#21428: 24.5; Crash of emacs on OS X, installed via homebrew cask, Rainer M Krug, 2015/09/23