Package: emacs;
Reported by: Leonardo Hernández <leohdz172 <at> proton.me>
Date: Sat, 20 May 2023 19:51:01 UTC
Severity: normal
Found in version 29.0.91
Message #35 received at 63614 <at> debbugs.gnu.org (full text, mbox):
From: Leonardo Hernández Hernández <leohdz172 <at> proton.me> To: Po Lu <luangruo <at> yahoo.com> Cc: 63614 <at> debbugs.gnu.org Subject: Re: bug#63614: 29.0.91; PGTK Emacs crashes after clearing the clipboard Date: Thu, 25 May 2023 06:48:17 +0000
On Thu, May 25, 2023 at 12:13:38AM -0600, Po Lu wrote:
> I suppose what this shows is that an invalid SELECTION_CLEAR_EVENT has
> somehow found its way in to the keyboard buffer.
>
> We need to narrow down the scope of the problem. If you comment out the
> entirety of `process_special_events', does the crash still occur?
Yes, I am using this diff:
diff --git a/src/keyboard.c b/src/keyboard.c
index b1ccf4acde4..2c9515194f7 100644
--- a/src/keyboard.c
+++ b/src/keyboard.c
@@ -4401,6 +4401,7 @@ kbd_buffer_get_event (KBOARD **kbp,
static void
process_special_events (void)
{
+ #if 0
union buffered_input_event *event;
#if defined HAVE_X11 || defined HAVE_PGTK || defined HAVE_HAIKU
#ifndef HAVE_HAIKU
@@ -4476,6 +4477,7 @@ process_special_events (void)
#endif
}
}
+ #endif
}
/* Process any events that are not user-visible, run timer events that
and the backtrace:
(gdb) bt full
#0 0x00007fe5d8b238ec in () at /usr/lib64/libc.so.6
#1 0x00007fe5d8ad43e2 in raise () at /usr/lib64/libc.so.6
#2 0x0000558b3fc04c6a in terminate_due_to_signal (sig=11, backtrace_limit=<optimized out>) at emacs.c:464
#3 0x0000558b3fc05ae5 in handle_fatal_signal (sig=11) at sysdep.c:1783
fatal = <optimized out>
#4 deliver_thread_signal (handler=<optimized out>, sig=11) at sysdep.c:1775
fatal = <optimized out>
#5 deliver_fatal_thread_signal (sig=11) at sysdep.c:1795
fatal = <optimized out>
#6 handle_sigsegv (sig=11, siginfo=0x558b4048ccb0 <sigsegv_stack+64528>, arg=<optimized out>) at sysdep.c:1888
fatal = <optimized out>
#7 0x00007fe5d8ad4490 in <signal handler called> () at /usr/lib64/libc.so.6
#8 0x0000558b3fd2795f in pgtk_handle_selection_clear (event=0x7ffe61851e40) at pgtkselect.c:742
changed_owner_time = 0
local_selection_time = <optimized out>
dpyinfo = 0x40da71d0
Vselection_alist = <optimized out>
selection = <optimized out>
selection_symbol = <optimized out>
local_selection_data = <optimized out>
copy = {kind = SELECTION_CLEAR_EVENT, dpyinfo = 0x40da71d0, requestor = 0x0, selection = 0x45, target = 0x0, property = 0x0, time = 0}
event = <optimized out>
obj = 0x0
str = <optimized out>
#9 pgtk_handle_selection_event (event=0x7ffe61851e40) at pgtkselect.c:782
copy = {kind = SELECTION_CLEAR_EVENT, dpyinfo = 0x40da71d0, requestor = 0x0, selection = 0x45, target = 0x0, property = 0x0, time = 0}
event = <optimized out>
obj = 0x0
str = <optimized out>
#10 kbd_buffer_get_event (kbp=kbp <at> entry=0x7ffe618520c8, used_mouse_menu=used_mouse_menu <at> entry=0x7ffe6185263b, end_time=end_time <at> entry=0x0) at keyboard.c:4071
copy = {kind = SELECTION_CLEAR_EVENT, dpyinfo = 0x40da71d0, requestor = 0x0, selection = 0x45, target = 0x0, property = 0x0, time = 0}
event = <optimized out>
obj = 0x0
str = <optimized out>
#11 0x0000558b3fd29bc4 in read_event_from_main_queue (used_mouse_menu=<optimized out>, local_getcjmp=0x7ffe61852340, end_time=<optimized out>) at keyboard.c:2279
c = 0x0
save_jump = {{__jmpbuf = {0, 0, 0, 0, 0, 0, 0, 0}, __mask_was_saved = 0, __saved_mask = {__val = {0 <repeats 16 times>}}}}
kb = 0x558b40d2dbd0
nextevt = <optimized out>
frame = <optimized out>
terminal = <optimized out>
events = {0x7fe5d489770d, 0x13f000000, 0x558b41335113, 0x9c90d489770d, 0x24a, 0x558b40c05963, 0x9c90, 0x9c90, 0x4000000006000000, 0x400000003f000000, 0x0, 0x558b3fe54381 <lookup_char_property+497>, 0x9c90, 0x1618524b0, 0xffffffffffffffff, 0x93}
n = 0
c = <optimized out>
local_getcjmp = {{__jmpbuf = {94056566772352, -1901120014703127217, 1, 140625090017032, 0, 94056582669987, -1901120015443421873, -5658946911598406321}, __mask_was_saved = 0, __saved_mask = {__val = {94056560832960, 94056575718051, 586, 2, 94056560847727, 140730534536336, 40080, 140730534536224, 0, 0, 140625090017037, 0, 94056575718051, 0, 146, 147}}}}
save_jump = {{__jmpbuf = {0, 0, 0, 0, 0, 0, 0, 0}, __mask_was_saved = 0, __saved_mask = {__val = {0 <repeats 16 times>}}}}
tem = <optimized out>
save = <optimized out>
previous_echo_area_message = 0x0
also_record = 0x0
reread = false
recorded = false
polling_stopped_here = true
orig_kboard = 0x558b40d2dbd0
#12 read_decoded_event_from_main_queue (used_mouse_menu=<optimized out>, prev_event=<optimized out>, local_getcjmp=<optimized out>, end_time=<optimized out>) at keyboard.c:2343
nextevt = <optimized out>
frame = <optimized out>
terminal = <optimized out>
events = {0x7fe5d489770d, 0x13f000000, 0x558b41335113, 0x9c90d489770d, 0x24a, 0x558b40c05963, 0x9c90, 0x9c90, 0x4000000006000000, 0x400000003f000000, 0x0, 0x558b3fe54381 <lookup_char_property+497>, 0x9c90, 0x1618524b0, 0xffffffffffffffff, 0x93}
n = 0
c = <optimized out>
local_getcjmp = {{__jmpbuf = {94056566772352, -1901120014703127217, 1, 140625090017032, 0, 94056582669987, -1901120015443421873, -5658946911598406321}, __mask_was_saved = 0, __saved_mask = {__val = {94056560832960, 94056575718051, 586, 2, 94056560847727, 140730534536336, 40080, 140730534536224, 0, 0, 140625090017037, 0, 94056575718051, 0, 146, 147}}}}
save_jump = {{__jmpbuf = {0, 0, 0, 0, 0, 0, 0, 0}, __mask_was_saved = 0, __saved_mask = {__val = {0 <repeats 16 times>}}}}
tem = <optimized out>
save = <optimized out>
previous_echo_area_message = 0x0
also_record = 0x0
reread = false
recorded = false
polling_stopped_here = true
orig_kboard = 0x558b40d2dbd0
#13 read_char (commandflag=1, map=0x558b40c8c593, prev_event=0x0, used_mouse_menu=0x7ffe6185263b, end_time=0x0) at keyboard.c:2973
c = <optimized out>
local_getcjmp = {{__jmpbuf = {94056566772352, -1901120014703127217, 1, 140625090017032, 0, 94056582669987, -1901120015443421873, -5658946911598406321}, __mask_was_saved = 0, __saved_mask = {__val = {94056560832960, 94056575718051, 586, 2, 94056560847727, 140730534536336, 40080, 140730534536224, 0, 0, 140625090017037, 0, 94056575718051, 0, 146, 147}}}}
save_jump = {{__jmpbuf = {0, 0, 0, 0, 0, 0, 0, 0}, __mask_was_saved = 0, __saved_mask = {__val = {0 <repeats 16 times>}}}}
tem = <optimized out>
save = <optimized out>
previous_echo_area_message = 0x0
also_record = 0x0
reread = false
recorded = false
polling_stopped_here = true
orig_kboard = 0x558b40d2dbd0
#14 0x0000558b3feda8b7 in read_key_sequence.constprop.0
(keybuf=<optimized out>, prevent_redisplay=false, fix_current_buffer=<optimized out>, can_return_switch_frame=<optimized out>, dont_downcase_last=<optimized out>, prompt=<optimized out>)
at keyboard.c:10085
interrupted_kboard = 0x558b40d2dbd0
key = <optimized out>
used_mouse_menu = false
echo_local_start = 0
last_real_key_start = 0
keys_local_start = 0
new_binding = <optimized out>
t = 0
echo_start = 0
keys_start = 0
current_binding = 0x558b40c8c593
first_unbound = 31
mock_input = 0
used_mouse_menu_history = {false <repeats 30 times>}
fkey = {parent = 0x558b40bb6393, map = 0x558b40bb6393, start = 0, end = 0}
keytran = {parent = 0x7fe5d500897b, map = 0x7fe5d500897b, start = 0, end = 0}
indec = {parent = 0x558b40bb63a3, map = 0x558b40bb63a3, start = 0, end = 0}
shift_translated = <optimized out>
delayed_switch_frame = <optimized out>
original_uppercase = <optimized out>
original_uppercase_position = <optimized out>
dummyflag = false
fake_prefixed_keys = 0x0
first_event = 0x0
second_event = <optimized out>
#15 0x0000558b3fd1ebea in command_loop_1 () at keyboard.c:1384
cmd = <optimized out>
keybuf = {0x5e, 0x558b3fddddd6 <eval_sub+1142>, 0x558b40b63510, 0x558b3fe368dc <exec_byte_code+508>, 0x0, 0x80, 0x0, 0x7fe5d4d0e738, 0x558b3ff8d020 <main_thread.lto_priv>, 0x7fe5d50e62b5, 0x558b40ba93c4, 0x0, 0x558b3ff17314, 0x7fe5da405705, 0x53474e, 0x7fe5d8b31400, 0x7ffe61852c30, 0xc8655754adb42900, 0x9510, 0x558b3ff1dd60, 0x7ffe61852900, 0x60, 0x558b40ba93c4, 0x0, 0x558b3ff8d020 <main_thread.lto_priv>, 0x558b3fd1c925 <top_level_2+725>, 0x558b3ff17314, 0x7fe5d8b31f12 <malloc+434>, 0x15, 0x30}
i = <optimized out>
prev_modiff = 37
prev_buffer = 0x7fe5d4897708
#16 0x0000558b3fdd81b7 in internal_condition_case (bfun=0x558b3fd1e920 <command_loop_1>, handlers=<optimized out>, hfun=0x558b3fd1c380 <cmd_error>) at eval.c:1474
val = <optimized out>
c = 0x558b40bad350
#17 0x0000558b3fd1c63e in command_loop_2 (handlers=handlers <at> entry=0x90) at keyboard.c:1133
val = <optimized out>
#18 0x0000558b3fdd810c in internal_catch (tag=<optimized out>, func=0x558b3fd1c610 <command_loop_2>, arg=0x90) at eval.c:1197
val = <optimized out>
c = 0x558b40bacde0
#19 0x0000558b3fd1e409 in command_loop () at keyboard.c:1111
#20 0x0000558b3ff0d720 in recursive_edit_1.isra.0 () at keyboard.c:720
val = <optimized out>
#21 0x0000558b3fd1e8ec in Frecursive_edit () at keyboard.c:803
buffer = <optimized out>
#22 0x0000558b3fc12bad in main (argc=<optimized out>, argv=0x7ffe61852d48) at emacs.c:2529
stack_bottom_variable = 0x0
no_loadup = false
junk = 0x0
dname_arg = 0x0
ch_to_dir = 0x0
original_pwd = 0x0
dump_mode = <optimized out>
skip_args = 0
temacs = 0x0
attempt_load_pdump = <optimized out>
only_version = false
rlim = {rlim_cur = 10022912, rlim_max = 18446744073709551615}
lc_all = <optimized out>
sockfd = -1
module_assertions = <optimized out>
(gdb)
GNU bug tracking system
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