* libxft crash with current Emacs master branch
@ 2014-01-18 7:56 Alex Bennée
2014-01-21 12:18 ` Alex Bennée
0 siblings, 1 reply; 2+ messages in thread
From: Alex Bennée @ 2014-01-18 7:56 UTC (permalink / raw)
To: Emacs developers
Hi,
I've been seeing crashes in the last few weeks while tracking the Emacs
master branch.
#0 0x00007fa172105c05 in ?? () from /usr/lib/x86_64-linux-gnu/libXft.so.2
#1 0x00007fa172101e37 in ?? () from /usr/lib/x86_64-linux-gnu/libXft.so.2
#2 0x00007fa1725334f2 in XCloseDisplay () from /usr/lib/x86_64-linux-gnu/libX11.so.6
#3 0x00007fa172c8ffd5 in ?? () from /usr/lib/x86_64-linux-gnu/libXt.so.6
#4 0x00007fa172c90b6c in XtCloseDisplay () from /usr/lib/x86_64-linux-gnu/libXt.so.6
#5 0x00000000004b7e1a in x_delete_terminal (terminal=<optimized out>) at xterm.c:10331
#6 0x00000000004aa506 in Fdelete_terminal (terminal=terminal@entry=87945245, force=<optimized out>) at terminal.c:348
#7 0x0000000000421268 in delete_frame (frame=<optimized out>, force=<optimized out>) at frame.c:1400
#8 0x000000000054bc58 in Ffuncall (nargs=nargs@entry=1, args=args@entry=0x7fff1cf10710) at eval.c:2809
#9 0x0000000000548050 in Fcall_interactively (function=<optimized out>, record_flag=<optimized out>, keys=<optimized out>) at callint.c:836
#10 0x000000000054bc48 in Ffuncall (nargs=<optimized out>, args=<optimized out>) at eval.c:2813
#11 0x000000000057fbbd in exec_byte_code (bytestr=0, vector=140733678945484, maxdepth=0, args_template=78271296, nargs=140733678946512,
args=0x4) at bytecode.c:919
#12 0x000000000054b7a7 in funcall_lambda (fun=9555397, nargs=nargs@entry=1, arg_vector=arg_vector@entry=0x7fff1cf10a78) at eval.c:2974
#13 0x000000000054ba7b in Ffuncall (nargs=nargs@entry=2, args=args@entry=0x7fff1cf10a70) at eval.c:2867
#14 0x000000000054bdaa in call1 (fn=<optimized out>, arg1=<optimized out>) at eval.c:2605
#15 0x00000000004e914d in command_loop_1 () at keyboard.c:1552
#16 0x000000000054a0be in internal_condition_case (bfun=bfun@entry=0x4e8dc0 <command_loop_1>, handlers=<optimized out>,
hfun=hfun@entry=0x4dfd70 <cmd_error>) at eval.c:1345
#17 0x00000000004db40e in command_loop_2 (ignore=ignore@entry=12108018) at keyboard.c:1170
#18 0x0000000000549fcb in internal_catch (tag=12155426, func=func@entry=0x4db3f0 <command_loop_2>, arg=12108018) at eval.c:1109
#19 0x00000000004df997 in command_loop () at keyboard.c:1149
#20 recursive_edit_1 () at keyboard.c:777
#21 0x00000000004dfc82 in Frecursive_edit () at keyboard.c:841
#22 0x0000000000413b65 in main (argc=<optimized out>, argv=0x7fff1cf10e18) at emacs.c:1637
#5 0x00000000004b7e1a in x_delete_terminal (terminal=<optimized out>) at xterm.c:10331
With additional debug symbols I saw this:
#0 XftFontManageMemory (dpy=dpy@entry=0x321c690) at ../../src/xftfreetype.c:1115
#1 0x00007f1449f09e37 in _XftCloseDisplay (dpy=0x321c690, codes=<optimized out>) at ../../src/xftdpy.c:40
#2 0x00007f144a33b4f2 in XCloseDisplay () from /usr/lib/x86_64-linux-gnu/libX11.so.6
#3 0x00007f144aa97fd5 in ?? () from /usr/lib/x86_64-linux-gnu/libXt.so.6
#4 0x00007f144aa98b6c in XtCloseDisplay () from /usr/lib/x86_64-linux-gnu/libXt.so.6
#5 0x00000000005148cf in x_delete_terminal ()
#6 0x00000000004f305f in Fdelete_terminal ()
#7 0x00000000004232b6 in delete_frame ()
#8 0x00000000004235c9 in Fdelete_frame ()
#9 0x00000000005cebab in Ffuncall ()
#10 0x00000000005c93fe in Fcall_interactively ()
#11 0x00000000005cebda in Ffuncall ()
#12 0x0000000000610bb3 in exec_byte_code ()
#13 0x00000000005cf266 in funcall_lambda ()
#14 0x00000000005ced6d in Ffuncall ()
#15 0x00000000005ce502 in call1 ()
#16 0x000000000053a8c0 in command_loop_1 ()
#17 0x00000000005cb9e8 in internal_condition_case ()
#18 0x0000000000539eee in command_loop_2 ()
#19 0x00000000005cb1fa in internal_catch ()
#20 0x0000000000539e9c in command_loop ()
#21 0x000000000053967e in recursive_edit_1 ()
#22 0x00000000005397eb in Frecursive_edit ()
#23 0x00000000005377f3 in main ()
#0 XftFontManageMemory (dpy=dpy@entry=0x321c690) at ../../src/xftfreetype.c:1115
1115 in ../../src/xftfreetype.c
$1 = (Display *) 0x321c690
$2 = {ext_data = 0x2c77a60, free_funcs = 0x3765ad0, fd = 11, conn_checker = 0, proto_major_version = 11, proto_minor_version = 0,
vendor = 0x3a48cf0 "The X.Org Foundation", resource_base = 12582912, resource_mask = 2097151, resource_id = 0, resource_shift = 0,
resource_alloc = 0x7f144a35d2d0 <_XAllocID>, byte_order = 0, bitmap_unit = 32, bitmap_pad = 32, bitmap_bit_order = 0, nformats = 7,
pixmap_format = 0x3a28c00, vnumber = 11, release = 11204000, head = 0x0, tail = 0x0, qlen = 0, last_request_read = 6434, request = 6435,
last_req = 0x2d5ba70 "\217\023\002", buffer = 0x2d5ba70 "\217\023\002", bufptr = 0x2d5ba78 "<", bufmax = 0x2d5fa70 "",
max_request_size = 65535, db = 0x0, synchandler = 0x0, display_name = 0x399c8a0 ":0", default_screen = 0, nscreens = 1,
screens = 0x3b97e40, motion_buffer = 256, flags = 2, min_keycode = 8, max_keycode = 255, keysyms = 0x0, modifiermap = 0x0,
keysyms_per_keycode = 0, xdefaults = 0x0, scratch_buffer = 0x0, scratch_length = 0, ext_number = 4, ext_procs = 0x3687980, event_vec = {
0x7f144a35ed30 <_XUnknownWireEvent>, 0x7f144a35ed30 <_XUnknownWireEvent>, 0x7f144a35ed70 <_XWireToEvent> <repeats 34 times>,
0x7f144a35ed30 <_XUnknownWireEvent> <repeats 53 times>, 0x7f144a3b0750, 0x7f144a35ed30 <_XUnknownWireEvent> <repeats 38 times>},
wire_vec = {0x7f144a35ed60 <_XUnknownNativeEvent>, 0x7f144a35ed60 <_XUnknownNativeEvent>, 0x0 <repeats 34 times>,
0x7f144a35ed60 <_XUnknownNativeEvent> <repeats 92 times>}, lock_meaning = 0, lock = 0x0, async_handlers = 0x0, bigreq_size = 4194303,
lock_fns = 0x0, idlist_alloc = 0x7f144a35d320 <_XAllocIDs>, key_bindings = 0x0, cursor_font = 12582913, atoms = 0x2808260,
mode_switch = 0, num_lock = 0, context_db = 0x2cb1160, error_vec = 0x0, cms = {defaultCCCs = 0x38f5150 "\220\306!\003",
clientCmaps = 0x38f50d0 " ", perVisualIntensityMaps = 0x0}, im_filters = 0x0, qfree = 0x3a5f5c0, next_event_serial_num = 78,
flushes = 0x0, im_fd_info = 0x0, im_fd_length = 0, conn_watchers = 0x3946be0, watcher_count = 1, filedes = 0x25a7450 "\v",
savedsynchandler = 0x0, resource_max = 2097146, xcmisc_opcode = 0, xkb_info = 0x3a3a720, trans_conn = 0x0, xcb = 0x2c189e0,
next_cookie = 0, generic_event_vec = {0x0 <repeats 128 times>}, generic_event_copy_vec = {0x0 <repeats 128 times>}, cookiejar = 0x0}
Source directories searched: /home/alex/src/pkgs/xft-2.3.1/src:$cdir:$cwd
#0 XftFontManageMemory (dpy=dpy@entry=0x321c690) at ../../src/xftfreetype.c:1115
1115 for (prev = &info->fontHash[font->info.hash % XFT_NUM_FONT_HASH];
$3 = (XftDisplayInfo *) 0x3a944d0
$4 = {next = 0x0, display = 0x321c690, codes = 0x3687988, defaults = 0x2d39930, hasRender = 1, fonts = 0x3f325d0, solidFormat = 0x38fa090,
glyph_memory = 72652, max_glyph_memory = 4194304, use_free_glyphs = 1, num_unref_fonts = 2, max_unref_fonts = 0, colors = {{color = {
red = 31868, green = 47288, blue = 48059, alpha = 65535}, screen = 0, pict = 12582984}, {color = {red = 56540, green = 56540,
blue = 52428, alpha = 65535}, screen = 0, pict = 12582994}, {color = {red = 18036, green = 28271, blue = 116, alpha = 65535},
screen = -1, pict = 0}, {color = {red = 22704, green = 687, blue = 0, alpha = 0}, screen = -1, pict = 0}, {color = {red = 2,
green = 47011, blue = 0, alpha = 65535}, screen = -1, pict = 0}, {color = {red = 32639, green = 40863, blue = 32639,
alpha = 65535}, screen = 0, pict = 12582969}, {color = {red = 57311, green = 44975, blue = 36751, alpha = 65535}, screen = 0,
pict = 12582979}, {color = {red = 60138, green = 47031, blue = 0, alpha = 65535}, screen = 0, pict = 12582992}, {color = {
red = 24415, green = 32639, blue = 24415, alpha = 65535}, screen = 0, pict = 12582962}, {color = {red = 16191, green = 16191,
blue = 16191, alpha = 65535}, screen = 0, pict = 12582989}, {color = {red = 65535, green = 65535, blue = 65535, alpha = 65535},
screen = 0, pict = 12582966}, {color = {red = 39321, green = 39321, blue = 39321, alpha = 65535}, screen = 0, pict = 12582964}, {
color = {red = 32639, green = 32639, blue = 32639, alpha = 65535}, screen = 0, pict = 12582976}, {color = {red = 49087,
green = 60395, blue = 49087, alpha = 65535}, screen = 0, pict = 12582972}, {color = {red = 37779, green = 57568, blue = 58339,
alpha = 65535}, screen = 0, pict = 12582986}, {color = {red = 61680, green = 57311, blue = 44975, alpha = 65535}, screen = 0,
pict = 12583002}}, fontHash = {0x0 <repeats 19 times>, 0x3f325d0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3cd0c00,
0x0 <repeats 96 times>}}
There is no member named fonthash.
$5 = {0x0 <repeats 19 times>, 0x3f325d0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3cd0c00, 0x0 <repeats 96 times>}
$6 = (XftFontInt *) 0x0
#0 XftFontManageMemory (dpy=dpy@entry=0x321c690) at ../../src/xftfreetype.c:1115
#1 0x00007f1449f09e37 in _XftCloseDisplay (dpy=0x321c690, codes=<optimized out>) at ../../src/xftdpy.c:40
#2 0x00007f144a33b4f2 in XCloseDisplay () from /usr/lib/x86_64-linux-gnu/libX11.so.6
#3 0x00007f144aa97fd5 in ?? () from /usr/lib/x86_64-linux-gnu/libXt.so.6
#4 0x00007f144aa98b6c in XtCloseDisplay () from /usr/lib/x86_64-linux-gnu/libXt.so.6
#5 0x00000000005148cf in x_delete_terminal ()
#6 0x00000000004f305f in Fdelete_terminal ()
#7 0x00000000004232b6 in delete_frame ()
#8 0x00000000004235c9 in Fdelete_frame ()
#9 0x00000000005cebab in Ffuncall ()
#10 0x00000000005c93fe in Fcall_interactively ()
#11 0x00000000005cebda in Ffuncall ()
#12 0x0000000000610bb3 in exec_byte_code ()
#13 0x00000000005cf266 in funcall_lambda ()
#14 0x00000000005ced6d in Ffuncall ()
#15 0x00000000005ce502 in call1 ()
#16 0x000000000053a8c0 in command_loop_1 ()
#17 0x00000000005cb9e8 in internal_condition_case ()
#18 0x0000000000539eee in command_loop_2 ()
#19 0x00000000005cb1fa in internal_catch ()
#20 0x0000000000539e9c in command_loop ()
#21 0x000000000053967e in recursive_edit_1 ()
#22 0x00000000005397eb in Frecursive_edit ()
#23 0x00000000005377f3 in main ()
Stack level 0, frame at 0x7fff63f5ab20:
rip = 0x7f1449f0dc05 in XftFontManageMemory (../../src/xftfreetype.c:1115); saved rip 0x7f1449f09e37
called by frame at 0x7fff63f5ab40
source language c.
Arglist at 0x7fff63f5aae8, args: dpy=dpy@entry=0x321c690
Locals at 0x7fff63f5aae8, Previous frame's sp is 0x7fff63f5ab20
Saved registers:
rbx at 0x7fff63f5aaf8, rbp at 0x7fff63f5ab00, r12 at 0x7fff63f5ab08, r13 at 0x7fff63f5ab10, rip at 0x7fff63f5ab18
1110 *prev = font->next;
1111 break;
1112 }
1113 }
1114 /* Unhook from hash list */
1115 for (prev = &info->fontHash[font->info.hash % XFT_NUM_FONT_HASH];
1116 *prev;
1117 prev = &(*(XftFontInt **) prev)->hash_next)
1118 {
1119 if (*prev == public)
1095 while (info->num_unref_fonts > info->max_unref_fonts)
1096 {
1097 public = XftFontFindNthUnref (info, rand() % info->num_unref_fonts);
1098 font = (XftFontInt *) public;
1099
1100 if (XftDebug () & XFT_DBG_CACHE)
1101 printf ("freeing unreferenced font %s/%d size %dx%d\n",
1102 font->info.file->file, font->info.file->id,
1103 (int) font->info.xsize >> 6, (int) font->info.ysize >> 6);
1104
$7 = (XftDisplayInfo *) 0x3a944d0
$8 = {next = 0x0, display = 0x321c690, codes = 0x3687988, defaults = 0x2d39930, hasRender = 1, fonts = 0x3f325d0, solidFormat = 0x38fa090,
glyph_memory = 72652, max_glyph_memory = 4194304, use_free_glyphs = 1, num_unref_fonts = 2, max_unref_fonts = 0, colors = {{color = {
red = 31868, green = 47288, blue = 48059, alpha = 65535}, screen = 0, pict = 12582984}, {color = {red = 56540, green = 56540,
blue = 52428, alpha = 65535}, screen = 0, pict = 12582994}, {color = {red = 18036, green = 28271, blue = 116, alpha = 65535},
screen = -1, pict = 0}, {color = {red = 22704, green = 687, blue = 0, alpha = 0}, screen = -1, pict = 0}, {color = {red = 2,
green = 47011, blue = 0, alpha = 65535}, screen = -1, pict = 0}, {color = {red = 32639, green = 40863, blue = 32639,
alpha = 65535}, screen = 0, pict = 12582969}, {color = {red = 57311, green = 44975, blue = 36751, alpha = 65535}, screen = 0,
pict = 12582979}, {color = {red = 60138, green = 47031, blue = 0, alpha = 65535}, screen = 0, pict = 12582992}, {color = {
red = 24415, green = 32639, blue = 24415, alpha = 65535}, screen = 0, pict = 12582962}, {color = {red = 16191, green = 16191,
blue = 16191, alpha = 65535}, screen = 0, pict = 12582989}, {color = {red = 65535, green = 65535, blue = 65535, alpha = 65535},
screen = 0, pict = 12582966}, {color = {red = 39321, green = 39321, blue = 39321, alpha = 65535}, screen = 0, pict = 12582964}, {
color = {red = 32639, green = 32639, blue = 32639, alpha = 65535}, screen = 0, pict = 12582976}, {color = {red = 49087,
green = 60395, blue = 49087, alpha = 65535}, screen = 0, pict = 12582972}, {color = {red = 37779, green = 57568, blue = 58339,
alpha = 65535}, screen = 0, pict = 12582986}, {color = {red = 61680, green = 57311, blue = 44975, alpha = 65535}, screen = 0,
pict = 12583002}}, fontHash = {0x0 <repeats 19 times>, 0x3f325d0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3cd0c00,
0x0 <repeats 96 times>}}
This is while running Emacs in a crouton chroot on a Chromebook. Is this
something Emacs may have introduced or should I be looking lower down in
the stack. I haven't updated the chroot for some time but I suppose it
could be a new interaction with the ChromeOS X server which Emacs is
running under.
Any ideas or hints on debugging this?
Cheers,
--
Alex Bennée
http://www.bennee.com/~alex
^ permalink raw reply [flat|nested] 2+ messages in thread* Re: libxft crash with current Emacs master branch
2014-01-18 7:56 libxft crash with current Emacs master branch Alex Bennée
@ 2014-01-21 12:18 ` Alex Bennée
0 siblings, 0 replies; 2+ messages in thread
From: Alex Bennée @ 2014-01-21 12:18 UTC (permalink / raw)
To: Alex Bennée; +Cc: Emacs developers
kernel-hacker@bennee.com writes:
> Hi,
>
> I've been seeing crashes in the last few weeks while tracking the Emacs
> master branch.
>
<snip>
>
> #0 XftFontManageMemory (dpy=dpy@entry=0x321c690) at ../../src/xftfreetype.c:1115
> #1 0x00007f1449f09e37 in _XftCloseDisplay (dpy=0x321c690, codes=<optimized out>) at ../../src/xftdpy.c:40
> #2 0x00007f144a33b4f2 in XCloseDisplay () from /usr/lib/x86_64-linux-gnu/libX11.so.6
> #3 0x00007f144aa97fd5 in ?? () from /usr/lib/x86_64-linux-gnu/libXt.so.6
> #4 0x00007f144aa98b6c in XtCloseDisplay () from /usr/lib/x86_64-linux-gnu/libXt.so.6
> #5 0x00000000005148cf in x_delete_terminal ()
> #6 0x00000000004f305f in Fdelete_terminal ()
> #7 0x00000000004232b6 in delete_frame ()
<snip>
It certainly seems to occur after a number of delete_frame operations.
It seems to be font related but I have no idea what sort of font
interactions Emacs' makes when a frame is deleted. Should it do anything
given it's not shutting down?
--
Alex Bennée
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