Package: emacs;
Reported by: Nix <nix <at> esperi.org.uk>
Date: Tue, 24 Apr 2012 18:20:01 UTC
Severity: normal
Found in version 24.1.50
Done: Chong Yidong <cyd <at> gnu.org>
Bug is archived. No further changes may be made.
Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):
From: Nix <nix <at> esperi.org.uk> To: bug-gnu-emacs <at> gnu.org Subject: 24.1.50; Infloop deleting overlays in the minibuffer Date: Tue, 24 Apr 2012 19:18:35 +0100
With trunk emacs, I see a hang using the minibuffer after only a few
minutes of use, sometimes less.
xbacktrace:
"read-from-minibuffer" (0xb4ebdfd8)
"completing-read-default" (0xb4ebe148)
"read-buffer" (0xb4ebe2d8)
"persp-read-buffer" (0xb4ebe4a8)
"call-interactively" (0xb4ebe718)
Note that perspectives.el is not implicated here: control never returns
from delete_all_overlays(), and the value of `overlay' in the
overlays_before loop never changes. Inside Fdelete_overlay(),
Fmarker_buffer (OVERLAY_START (overlay)) is consistently returning Qnil,
so it never actually deletes anything and the deletion loop never
terminates.
Unfortunately further investigation is stymied by the fact that the
functions in src/.gdbinit still don't work for me, apparently because
I am too stupid to use them. e.g.:
(gdb) xpr overlay
Lisp_Misc
Lisp_Misc_Overlay
No symbol "Lisp_Int" in current context.
I'll try bisecting for the cause later if nobody can immediately think
of a cause.
C backtrace:
#0 0x0000000000512be0 in Fdelete_overlay (overlay=134171827) at buffer.c:3794
buffer = <optimized out>
b = <optimized out>
count = <optimized out>
#1 0x0000000000513ac9 in delete_all_overlays (b=0x4f118e0) at buffer.c:690
overlay = <optimized out>
#2 0x0000000000522724 in get_minibuffer (depth=1) at minibuf.c:810
count = <optimized out>
tail = <optimized out>
num = 4
buf = 82909413
name = "\245R\266\006\000\000\000\000ч\201\005\000\000\000\000\322ٶ\000\000\000\000\000\214,W\000\000\000\000"
#3 0x0000000000522b1f in read_minibuf (map=13237846, initial=11983314, prompt=175042689, backup_n=<optimized out>, expflag=0, histvar=12148690, histpos=0, defalt=75650225, allow_props=0, inherit_input_method=0) at minibuf.c:559
val = <optimized out>
count = <optimized out>
mini_frame = 112612005
ambient_dir = 92374993
minibuffer = <optimized out>
input_method = 11983314
enable_multibyte = 11983314
pos = 0
histstring = <optimized out>
empty_minibuf = <optimized out>
dummy = <optimized out>
frame = <optimized out>
#4 0x0000000000523691 in Fread_from_minibuffer (prompt=175042689, initial_contents=11983314, keymap=13237846, read=11983314, hist=12148690, default_value=75650225, inherit_input_method=11983314) at minibuf.c:980
histvar = <optimized out>
histpos = <optimized out>
val = <optimized out>
#5 0x00000000005688be in Ffuncall (nargs=<optimized out>, args=0x7fffb4ebdfd0) at eval.c:2961
fun = <optimized out>
original_fun = <optimized out>
funcar = <optimized out>
numargs = <optimized out>
lisp_numargs = 28
val = <optimized out>
backtrace = {next = 0x7fffb4ebe0d0, function = 0x7fffb4ebdfd0, args = 0x7fffb4ebdfd8, nargs = 7, debug_on_exit = 0}
internal_args = 0x7fffb4ebdfd8
i = <optimized out>
#6 0x00000000005a0596 in exec_byte_code (bytestr=<optimized out>, vector=<optimized out>, maxdepth=<optimized out>, args_template=<optimized out>, nargs=<optimized out>, args=<optimized out>) at bytecode.c:785
count = 12
op = <optimized out>
vectorp = 0x90dd10
stack = {pc = 0xa8f8f9 "\211˚\203Y", byte_string = 9493729, byte_string_start = 0xa8f8b7 "\003:\203\r", constants = 9493765, next = 0x7fffb4ebe320}
top = 0x7fffb4ebdfd0
result = <optimized out>
#7 0x000000000056879b in Ffuncall (nargs=9, args=0x7fffb4ebe140) at eval.c:2996
fun = <optimized out>
original_fun = 13702850
funcar = <optimized out>
numargs = 8
lisp_numargs = 32
val = <optimized out>
backtrace = {next = 0x7fffb4ebe260, function = 0x7fffb4ebe140, args = 0x7fffb4ebe148, nargs = 8, debug_on_exit = 0}
internal_args = <optimized out>
i = <optimized out>
#8 0x0000000000520e42 in Fcompleting_read (prompt=175042689, collection=12150338, predicate=11983314, require_match=11983362, initial_input=11983314, hist=12148690, def=75650225, inherit_input_method=11983314) at minibuf.c:1726
args = {13702850, 175042689, 12150338, 11983314, 11983362, 11983314, 12148690, 75650225, 11983314}
#9 0x0000000000521e58 in Fread_buffer (prompt=175042689, def=75650225, require_match=11983362) at minibuf.c:1176
args = {175042721, 175042753, 75650225, 14456544}
result = <optimized out>
s = <optimized out>
len = <optimized out>
count = 11
#10 0x0000000000568941 in Ffuncall (nargs=<optimized out>, args=0x7fffb4ebe2d0) at eval.c:2942
fun = <optimized out>
original_fun = <optimized out>
funcar = <optimized out>
numargs = <optimized out>
lisp_numargs = 12
val = <optimized out>
backtrace = {next = 0x7fffb4ebe420, function = 0x7fffb4ebe2d0, args = 0x7fffb4ebe2d8, nargs = 3, debug_on_exit = 0}
internal_args = 0x7fffb4ebe2d8
i = <optimized out>
#11 0x00000000005a0596 in exec_byte_code (bytestr=<optimized out>, vector=<optimized out>, maxdepth=<optimized out>, args_template=<optimized out>, nargs=<optimized out>, args=<optimized out>) at bytecode.c:785
count = 7
op = <optimized out>
vectorp = 0x45d82e0
stack = {pc = 0x432ca83 "+)\207", byte_string = 66541025, byte_string_start = 0x432ca60 "\306\030\t\203\016", constants = 73237205, next = 0x0}
top = 0x7fffb4ebe2d0
result = <optimized out>
#12 0x0000000000568431 in funcall_lambda (fun=73237541, nargs=<optimized out>, arg_vector=0x7fffb4ebe4a8) at eval.c:3166
val = <optimized out>
syms_left = 11983314
next = <optimized out>
lexenv = 11983314
count = 4
i = <optimized out>
optional = <optimized out>
rest = <optimized out>
#13 0x000000000056879b in Ffuncall (nargs=4, args=0x7fffb4ebe4a0) at eval.c:2996
fun = <optimized out>
original_fun = 73235010
funcar = <optimized out>
numargs = 3
lisp_numargs = 12
val = <optimized out>
backtrace = {next = 0x7fffb4ebe6a0, function = 0x7fffb4ebe4a0, args = 0x7fffb4ebe4a8, nargs = 3, debug_on_exit = 0}
internal_args = <optimized out>
i = <optimized out>
#14 0x0000000000521da1 in Fread_buffer (prompt=175042785, def=75650225, require_match=11983362) at minibuf.c:1186
args = {73235010, 175042785, 75650225, 11983362}
result = <optimized out>
s = <optimized out>
len = <optimized out>
count = 3
#15 0x00000000005651eb in Fcall_interactively (function=12121826, record_flag=11983314, keys=140736228746584) at callint.c:513
args = 0x7fffb4ebe550
visargs = 0x7fffb4ebe530
specs = <optimized out>
filter_specs = <optimized out>
teml = <optimized out>
up_event = 11983314
enable = 12029632
speccount = <optimized out>
next_event = 2
prefix_arg = 11983314
string = <optimized out>
tem = 0x7fffb4ebe570 "bKill buffer: "
varies = 0x7fffb4ebe510 ""
i = <optimized out>
nargs = <optimized out>
foo = <optimized out>
arg_from_tty = <optimized out>
key_count = 2
record_then_fail = 0
save_this_command = 12121826
save_last_command = 12573810
save_this_original_command = 12121826
save_real_this_command = 12121826
#16 0x0000000000568941 in Ffuncall (nargs=<optimized out>, args=0x7fffb4ebe710) at eval.c:2942
fun = <optimized out>
original_fun = <optimized out>
funcar = <optimized out>
numargs = <optimized out>
lisp_numargs = 12
val = <optimized out>
backtrace = {next = 0x0, function = 0x7fffb4ebe710, args = 0x7fffb4ebe718, nargs = 3, debug_on_exit = 0}
internal_args = 0x7fffb4ebe718
i = <optimized out>
#17 0x0000000000568ba4 in call3 (fn=<optimized out>, arg1=<optimized out>, arg2=<optimized out>, arg3=<optimized out>) at eval.c:2735
ret_ungc_val = 3
args = {12123538, 12121826, 11983314, 11983314}
#18 0x00000000005020a9 in command_loop_1 () at keyboard.c:1572
scount = 2
cmd = <optimized out>
keybuf = {96, 428, 14456608, 11983362, 11983314, 11983314, 12036610, 2, 140736228747264, 5793748, 7237112172834486626, 140736228749157, 140736228747264, 5793375, 0, 8638097, 140092607576064, 185880422, 11983314, 11983314,
4294967295, 140736228749216, 140736228747312, 5204785, 14456544, 185880422, 11983314, 5205116, 11983104, 5598978}
i = <optimized out>
prev_modiff = 34301
prev_buffer = 0x4825980
#19 0x0000000000566c66 in internal_condition_case (bfun=0x501d10 <command_loop_1>, handlers=12035554, hfun=0x4f6b80 <cmd_error>) at eval.c:1448
val = <optimized out>
c = {tag = 11983314, val = 11983314, next = 0x7fffb4ebea30, gcpro = 0x0, jmp = {{__jmpbuf = {14456544, -8280186705055344401, 11983314, 140736228748936, 4294967295, 140736228749216, 8280349918095448303, -8280185561663825681},
__mask_was_saved = 0, __saved_mask = {__val = {0, 110932256, 0, 0, 14456544, 8585672, 0, 4294967295, 140736228749216, 0, 140092691631972, 1, 0, 0, 140092607547024, 0}}}}, backlist = 0x0, handlerlist = 0x0,
lisp_eval_depth = 0, pdlcount = 2, poll_suppress_count = 1, interrupt_input_blocked = 0, byte_stack = 0x0}
h = {handler = 12035554, var = 11983314, chosen_clause = 11983362, tag = 0x7fffb4ebe8c0, next = 0x0}
#20 0x00000000004f50ee in command_loop_2 (ignore=<optimized out>) at keyboard.c:1160
val = 3
#21 0x0000000000566b48 in internal_catch (tag=-6931673145220792320, func=0x4f50d0 <command_loop_2>, arg=11983314) at eval.c:1205
c = {tag = 12031298, val = 11983314, next = 0x0, gcpro = 0x0, jmp = {{__jmpbuf = {14456544, -8280186705055344401, 11983314, 140736228748936, 4294967295, 140736228749216, 8280349918045116655, -8280185561650718481},
__mask_was_saved = 0, __saved_mask = {__val = {0, 0, 0, 0, 0, 0, 5957193, 17904128, 140736228748136, 384, 140736228748128, 6269430, 11983314, 12209458, 5677638, 14}}}}, backlist = 0x0, handlerlist = 0x0,
lisp_eval_depth = 0, pdlcount = 2, poll_suppress_count = 1, interrupt_input_blocked = 0, byte_stack = 0x0}
#22 0x00000000004f6657 in command_loop () at keyboard.c:1139
No locals.
#23 recursive_edit_1 () at keyboard.c:759
count = 1
val = 11983314
#24 0x00000000004f698c in Frecursive_edit () at keyboard.c:823
count = 0
buffer = 11983314
#25 0x0000000000411de8 in main (argc=2, argv=<optimized out>) at emacs.c:1711
dummy = 0
stack_bottom_variable = 0 '\000'
do_initial_setlocale = <optimized out>
skip_args = 1
rlim = {rlim_cur = 33554432, rlim_max = 33554432}
no_loadup = 0
junk = 0x0
dname_arg = 0x0
ch_to_dir = 0x7f69da1c2c48 "2'"
In GNU Emacs 24.1.50.2 (x86_64-unknown-linux-gnu, X toolkit, Xaw3d scroll bars)
of 2012-04-24 on spindle
Bzr revision: 108019 sdl.web <at> gmail.com-20120424145829-udu1344w4ig09hvk
Windowing system distributor `The X.Org Foundation', version 11.0.11003901
Configured using:
`configure '--without-pop' '--without-kerberos' '--without-hesiod'
'--without-mmdf' '--with-x-toolkit=lucid' '--with-wide-int'
'NO_FAST_MATH=t''
Important settings:
value of $LC_ALL: nil
value of $LC_COLLATE: C
value of $LC_CTYPE: nil
value of $LC_MESSAGES: nil
value of $LC_MONETARY: nil
value of $LC_NUMERIC: nil
value of $LC_TIME: nil
value of $LANG: en_GB.UTF-8
value of $XMODIFIERS: nil
locale-coding-system: utf-8-unix
default enable-multibyte-characters: t
Major mode: Summary
Minor modes in effect:
gnus-mailing-list-mode: t
diff-auto-refine-mode: t
iswitchb-mode: t
global-cwarn-mode: t
show-paren-mode: t
global-semantic-mru-bookmark-mode: t
global-semanticdb-minor-mode: t
global-semantic-idle-scheduler-mode: t
global-semantic-idle-summary-mode: t
global-semantic-decoration-mode: t
global-auto-complete-mode: t
compile-bookmarks-mode: t
global-semantic-highlight-func-mode: t
global-semantic-stickyfunc-mode: t
semantic-mode: t
type-break-mode-line-message-mode: t
icomplete-mode: t
recentf-mode: t
mv-shell-mode: t
shell-dirtrack-mode: t
which-function-mode: t
desktop-save-mode: t
display-time-mode: t
tooltip-mode: t
mouse-wheel-mode: t
menu-bar-mode: t
file-name-shadow-mode: t
global-font-lock-mode: t
font-lock-mode: t
blink-cursor-mode: t
auto-composition-mode: t
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auto-compression-mode: t
column-number-mode: t
line-number-mode: t
Recent input:
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<down> <down> <down> <down> <down> <down> <up> <up>
C-k C-k <up> <up> <up> <up> <up> <up> <down> <down>
C-y C-k C-k <down> <down> C-k C-k C-k C-k C-k C-/ <down>
<up> C-SPC <down> C-w <up> <up> <up> <up> C-y C-k C-k
<down> <down> <down> <down> <down> <down> <down> <up>
<up> <up> <up> C-k <right> <right> <right> <right>
<right> <right> <right> <right> <right> <right> <right>
<right> <right> <right> <right> <right> <right> <right>
<right> <right> <right> <right> <right> <right> <right>
<right> <right> <right> <right> <right> <right> <right>
<down> <down> <down> <down> <next> <up> <up> <up> <up>
C-k C-k C-k C-k C-k C-k C-k C-k <right> <up> <up> <up>
<up> <up> <up> <up> <up> <up> <up> <up> <up> <up> <up>
<up> <up> <up> <up> <up> <up> <up> <up> <up> <up> <up>
<up> <up> <up> C-c C-c <up> <up> <up> <up> <up> <up>
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<up> <up> <up> <up> <up> <up> <return> <return> C-s
m i n i b u f f e r C-s C-s C-s C-s C-s C-s C-s C-s
C-s <left> <S-down> <S-down> <S-down> <S-down> <S-down>
<S-down> <S-down> <S-down> <S-down> <S-down> <S-down>
<S-down> <S-down> <S-down> <S-down> <S-down> <S-down>
<S-down> <S-down> <S-down> <S-down> <S-down> <S-down>
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<S-down> <S-down> <S-down> <S-down> <S-down> <S-down>
<S-down> <S-down> <return> M S-SPC C-s C-s C-s C-s
C-s C-s C-s C-s C-s <left> <return> SPC SPC SPC n n
<return> <return> <return> <return> <return> <return>
<return> <return> <return> <return> <return> <return>
<return> <return> <return> <return> <return> <return>
<return> <return> <return> <return> <return> a C-x
k <return> a C-x k <return> M-x r e p o r t - e m <tab>
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compilation-recenter-end-autoloads compile-bookmarks-autoloads
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