bug#19133: closed (Re: bug#19133: 25.0.50; Crash in clear-image-cache)

[Magnus Henoch]

reopen 19133
thanks

It doesn't seem to have fixed the problem.  I can reproduce the crash in
the same way using revision b1a765b.

I tried M-x image-dired, which I thought would exercise the image cache
in a similar way to my Jabber client, but that would _not_ make it
crash.  Not sure what might be special about the way I do it.  Is there
any more information I could provide?

The backtrace looks more or less the same:

Program received signal EXC_BAD_ACCESS, Could not access memory.
Reason: 13 at address: 0x0000000000000000
0x00007fff98216097 in objc_msgSend ()
(gdb) bt
#0  0x00007fff98216097 in objc_msgSend ()
#1  0x00007fff960083e1 in -[NSBitmapImageRep dealloc] ()
#2  0x00007fff8f18543f in CFRelease ()
#3  0x00007fff8f198699 in -[__NSArrayM dealloc] ()
#4  0x00007fff95e9f3b3 in -[NSImage dealloc] ()
#5  0x00000001001a74fc in -[EmacsImage dealloc] (self=0x10d40f620, _cmd=<value 
temporarily unavailable, due to optimizations>) at ../../src/nsimage.m:204
#6  0x0000000100185cd1 in x_clear_image_1 () at ../../src/image.c:1278
#7  0x0000000100185c9b in x_clear_image (f=<value temporarily unavailable, due 
to optimizations>, img=0x10d911930) at ../../src/image.c:1330
#8  0x000000010018475e in free_image (f=0x10d911930, img=0x10d9325c0) at 
../../src/image.c:1007
#9  0x00000001001849b8 in clear_image_cache (f=0x102060598, filter=4345311338) 
at ../../src/image.c:1495
#10 0x0000000100184a83 in Fclear_image_cache (filter=4345311290) at 
../../src/image.c:1579
#11 0x0000000100122e84 in eval_sub (form=<value temporarily unavailable, due to 
optimizations>) at ../../src/eval.c:2178
#12 0x0000000100125ab0 in Feval (form=4728661542, lexical=<value temporarily 
unavailable, due to optimizations>) at ../../src/eval.c:1993
#13 0x0000000100126435 in Ffuncall (nargs=<value temporarily unavailable, due 
to optimizations>, args=<value temporarily unavailable, due to optimizations>) 
at ../../src/eval.c:2726
#14 0x000000010015925d in exec_byte_code (bytestr=<value temporarily 
unavailable, due to optimizations>, vector=<value temporarily unavailable, due 
to optimizations>, maxdepth=<value temporarily unavailable, due to 
optimizations>, args_template=<value temporarily unavailable, due to 
optimizations>, nargs=<value temporarily unavailable, due to optimizations>, 
args=<value temporarily unavailable, due to optimizations>) at 
../../src/bytecode.c:920
#15 0x0000000100126294 in Ffuncall (nargs=<value temporarily unavailable, due 
to optimizations>, args=<value temporarily unavailable, due to optimizations>) 
at ../../src/eval.c:2772
#16 0x000000010012000a in Ffuncall_interactively (nargs=4328916376, 
args=0x7fff967e1666) at ../../src/callint.c:270
#17 0x00000001001262db in Ffuncall (nargs=<value temporarily unavailable, due 
to optimizations>, args=<value temporarily unavailable, due to optimizations>) 
at ../../src/eval.c:2703
#18 0x0000000100126041 in Fapply (nargs=<value temporarily unavailable, due to 
optimizations>, args=0x7fff5fbff110) at ../../src/eval.c:2343
#19 0x000000010012037f in Fcall_interactively (function=4345580090, 
record_flag=4345311290, keys=<value temporarily unavailable, due to 
optimizations>) at ../../src/callint.c:416
#20 0x0000000100126449 in Ffuncall (nargs=<value temporarily unavailable, due 
to optimizations>, args=<value temporarily unavailable, due to optimizations>) 
at ../../src/eval.c:2730
#21 0x000000010015925d in exec_byte_code (bytestr=<value temporarily 
unavailable, due to optimizations>, vector=<value temporarily unavailable, due 
to optimizations>, maxdepth=<value temporarily unavailable, due to 
optimizations>, args_template=<value temporarily unavailable, due to 
optimizations>, nargs=<value temporarily unavailable, due to optimizations>, 
args=<value temporarily unavailable, due to optimizations>) at 
../../src/bytecode.c:920
#22 0x0000000100126294 in Ffuncall (nargs=<value temporarily unavailable, due 
to optimizations>, args=<value temporarily unavailable, due to optimizations>) 
at ../../src/eval.c:2772
#23 0x000000010012694d in call1 (fn=<value temporarily unavailable, due to 
optimizations>, arg1=<value temporarily unavailable, due to optimizations>) at 
../../src/eval.c:2576
#24 0x00000001000b4185 in command_loop_1 () at ../../src/keyboard.c:1576
#25 0x0000000100124d7b in internal_condition_case (bfun=0x1000b3d60 
<command_loop_1>, handlers=<value temporarily unavailable, due to 
optimizations>, hfun=<value temporarily unavailable, due to optimizations>) at 
../../src/eval.c:1344
#26 0x00000001000c4d4e in command_loop_2 (ignore=<value temporarily 
unavailable, due to optimizations>) at ../../src/keyboard.c:1197
#27 0x0000000100124733 in internal_catch (tag=<value temporarily unavailable, 
due to optimizations>, func=0x1000c4d20 <command_loop_2>, arg=4345311290) at 
../../src/eval.c:1105
#28 0x00000001000b35e2 in command_loop () at ../../src/keyboard.c:1176
#29 0x00000001000b3487 in recursive_edit_1 () at ../../src/keyboard.c:786
#30 0x00000001000b36f4 in Frecursive_edit () at ../../src/keyboard.c:857
#31 0x00000001000b1cb5 in main (argc=Cannot access memory at address 0x0
) at ../../src/emacs.c:1623

Regards,
Magnus