From: Devon Sean McCullough <Emacs-Hacker2020@jovi.net>
To: 50319@debbugs.gnu.org
Subject: bug#50319: 27.2; crash
Date: Wed, 1 Sep 2021 09:30:57 -0400 [thread overview]
Message-ID: <c64199af-e722-9048-b057-2305288fa326@jovi.net> (raw)
Launch Emacs, attach a debugger, use it routinely for many weeks,
switching between various apps, until it dereferences a bad pointer
upon switching from some other app:
(lldb) process attach --pid 24105
⋮
Executable module set to "/Applications/Emacs.app/Contents/MacOS/Emacs-x86_64-10_14".
Architecture set to: x86_64h-apple-macosx-.
⋮
(lldb) Process 24105 stopped
* thread #1, queue = 'com.apple.main-thread', stop reason = EXC_BAD_ACCESS (code=1, address=0x172505fec)
frame #0: 0x000000010cdcb104 Emacs-x86_64-10_14`redisplay_window + 4244
Emacs-x86_64-10_14`redisplay_window:
-> 0x10cdcb104 <+4244>: movq -0x14(%rbx), %rcx
0x10cdcb108 <+4248>: addq $-0x100, %rbx
0x10cdcb10f <+4255>: testl $0x100000, %ecx ; imm = 0x100000
0x10cdcb115 <+4261>: je 0x10cdcb0a0 ; <+4144>
Target 0: (Emacs-x86_64-10_14) stopped.
(lldb) bt all
* thread #1, queue = 'com.apple.main-thread', stop reason = EXC_BAD_ACCESS (code=1, address=0x172505fec)
* frame #0: 0x000000010cdcb104 Emacs-x86_64-10_14`redisplay_window + 4244
frame #1: 0x000000010cdc9799 Emacs-x86_64-10_14`redisplay_window_1 + 41
frame #2: 0x000000010cec00af Emacs-x86_64-10_14`internal_condition_case_1 + 271
frame #3: 0x000000010cd9f669 Emacs-x86_64-10_14`redisplay_internal + 4073
frame #4: 0x000000010ce3d1a5 Emacs-x86_64-10_14`read_char + 2213
frame #5: 0x000000010ce3ad6a Emacs-x86_64-10_14`read_key_sequence + 1722
frame #6: 0x000000010ce3956c Emacs-x86_64-10_14`command_loop_1 + 1340
frame #7: 0x000000010cebff77 Emacs-x86_64-10_14`internal_condition_case + 263
frame #8: 0x000000010ce496f0 Emacs-x86_64-10_14`command_loop_2 + 48
frame #9: 0x000000010cebf79b Emacs-x86_64-10_14`internal_catch + 267
frame #10: 0x000000010cf7daa5 Emacs-x86_64-10_14`command_loop.cold.1 + 69
frame #11: 0x000000010ce38633 Emacs-x86_64-10_14`command_loop + 131
frame #12: 0x000000010ce38563 Emacs-x86_64-10_14`recursive_edit_1 + 115
frame #13: 0x000000010ce387bb Emacs-x86_64-10_14`Frecursive_edit + 347
frame #14: 0x000000010ce3734c Emacs-x86_64-10_14`main + 7436
frame #15: 0x00007fff727ad3d5 libdyld.dylib`start + 1
frame #16: 0x00007fff727ad3d5 libdyld.dylib`start + 1
thread #2
frame #0: 0x00007fff728e9616 libsystem_kernel.dylib`__select + 10
frame #1: 0x000000010cf46e6c Emacs-x86_64-10_14`-[EmacsApp fd_handler:] + 236
frame #2: 0x00007fff48a789a2 Foundation`__NSThread__start__ + 1194
frame #3: 0x00007fff729a12eb libsystem_pthread.dylib`_pthread_body + 126
frame #4: 0x00007fff729a4249 libsystem_pthread.dylib`_pthread_start + 66
frame #5: 0x00007fff729a040d libsystem_pthread.dylib`thread_start + 13
thread #3, name = 'com.apple.NSEventThread'
frame #0: 0x00007fff728e221a libsystem_kernel.dylib`mach_msg_trap + 10
frame #1: 0x00007fff728e2768 libsystem_kernel.dylib`mach_msg + 60
frame #2: 0x00007fff46819e0e CoreFoundation`__CFRunLoopServiceMachPort + 328
frame #3: 0x00007fff4681937c CoreFoundation`__CFRunLoopRun + 1612
frame #4: 0x00007fff46818ade CoreFoundation`CFRunLoopRunSpecific + 455
frame #5: 0x00007fff43e16bae AppKit`_NSEventThread + 175
frame #6: 0x00007fff729a12eb libsystem_pthread.dylib`_pthread_body + 126
frame #7: 0x00007fff729a4249 libsystem_pthread.dylib`_pthread_start + 66
frame #8: 0x00007fff729a040d libsystem_pthread.dylib`thread_start + 13
thread #23550
frame #0: 0x00007fff728e3bfa libsystem_kernel.dylib`__workq_kernreturn + 10
frame #1: 0x00007fff729a06e6 libsystem_pthread.dylib`_pthread_wqthread + 634
frame #2: 0x00007fff729a03fd libsystem_pthread.dylib`start_wqthread + 13
thread #23551
frame #0: 0x00007fff728e3bfa libsystem_kernel.dylib`__workq_kernreturn + 10
frame #1: 0x00007fff729a06e6 libsystem_pthread.dylib`_pthread_wqthread + 634
frame #2: 0x00007fff729a03fd libsystem_pthread.dylib`start_wqthread + 13
thread #23552
frame #0: 0x00007fff728e3bfa libsystem_kernel.dylib`__workq_kernreturn + 10
frame #1: 0x654d43505853536b
frame #2: 0x00007fff729a03fd libsystem_pthread.dylib`start_wqthread + 13
thread #23553
frame #0: 0x0000000000000000
(lldb)
In GNU Emacs 27.2 (build 1, x86_64-apple-darwin18.7.0, NS appkit-1671.60 Version 10.14.6 (Build 18G95))
of 2021-03-27 built on builder10-14.porkrind.org
Windowing system distributor 'Apple', version 10.3.1671
System Description: Mac OS X 10.14.6
Configured using:
'configure --with-ns '--enable-locallisppath=/Library/Application
Support/Emacs/${version}/site-lisp:/Library/Application
Support/Emacs/site-lisp' --with-modules'
next reply other threads:[~2021-09-01 13:30 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-01 13:30 Devon Sean McCullough [this message]
2021-09-01 14:04 ` bug#50319: 27.2; crash Eli Zaretskii
2021-10-03 9:40 ` Lars Ingebrigtsen
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