From: Doug Davis <ddavis@ddavis.io>
To: Eli Zaretskii <eliz@gnu.org>
Cc: herbert@gojira.at, Pankaj Jangid <pankaj@codeisgreat.org>,
emacs-devel@gnu.org
Subject: Re: [emacs-master] Frequent freezes on macOS
Date: Tue, 19 Jan 2021 12:19:54 -0500 [thread overview]
Message-ID: <m25z3sg7yd.fsf@ddavis.io> (raw)
In-Reply-To: <83zh156imm.fsf@gnu.org> (Eli Zaretskii's message of "Tue, 19 Jan 2021 17:39:29 +0200")
I've been able to reproduce the crash.
Eli Zaretskii <eliz@gnu.org> writes:
> Can you attach a debugger to Emacs when it freezes, and show the
> C-level backtrace?
Here's my novice debugger attempt (apologies if it's not helpful); first
after compiling with -O3 -g3:
ddavis@charm ~/software/repos/emacs (HEAD detached at 8f0ce42d3e) $ lldb src/emacs
(lldb) target create "src/emacs"
Current executable set to '/Users/ddavis/software/repos/emacs/src/emacs' (arm64).
(lldb) run
Process 28189 launched: '/Users/ddavis/software/repos/emacs/src/emacs' (arm64)
2021-01-19 11:30:20.006114-0500 emacs[28189:1400131] fopen failed for data file: errno = 2 (No such file or directory)
2021-01-19 11:30:20.006128-0500 emacs[28189:1400131] Errors found! Invalidating cache...
Process 28189 stopped
* thread #1, queue = 'com.apple.main-thread', stop reason = signal SIGTERM
frame #0: 0x000000018cc708d0 libsystem_kernel.dylib`read + 8
libsystem_kernel.dylib`read:
-> 0x18cc708d0 <+8>: b.lo 0x18cc708f0 ; <+40>
0x18cc708d4 <+12>: pacibsp
0x18cc708d8 <+16>: stp x29, x30, [sp, #-0x10]!
0x18cc708dc <+20>: mov x29, sp
Target 0: (emacs) stopped.
(lldb) bt
Process 28189 exited with status = 0 (0x00000000) Terminated due to signal 9
warning: could not execute support code to read Objective-C class data in the process. This may reduce the quality of type information available.
* thread #1, queue = 'com.apple.main-thread', stop reason = signal SIGTERM
* frame #0: 0x000000018cc708d0 libsystem_kernel.dylib`read + 8
frame #1: 0x00000001000de1c8 emacs`emacs_read [inlined] emacs_intr_read(fd=17, buf=0x000000016fdfbb3f, nbyte=<no summary available>, interruptible=<no summary available>) at sysdep.c:2486:16 [opt]
frame #2: 0x00000001000de1b8 emacs`emacs_read(fd=<no summary available>, buf=<unavailable>, nbyte=<no summary available>) at sysdep.c:2500 [opt]
and after compiling with -O0 -g3:
ddavis@charm ~/software/repos/emacs (HEAD detached at 8f0ce42d3e) $ lldb src/emacs
(lldb) target create "src/emacs"
Current executable set to '/Users/ddavis/software/repos/emacs/src/emacs' (arm64).
(lldb) run
Process 60350 launched: '/Users/ddavis/software/repos/emacs/src/emacs' (arm64)
Process 60350 stopped
* thread #1, queue = 'com.apple.main-thread', stop reason = signal SIGTERM
frame #0: 0x000000018cc708d0 libsystem_kernel.dylib`read + 8
libsystem_kernel.dylib`read:
-> 0x18cc708d0 <+8>: b.lo 0x18cc708f0 ; <+40>
0x18cc708d4 <+12>: pacibsp
0x18cc708d8 <+16>: stp x29, x30, [sp, #-0x10]!
0x18cc708dc <+20>: mov x29, sp
Target 0: (emacs) stopped.
(lldb) thread list
Process 60350 stopped
* thread #1: tid = 0x1764c3, 0x000000018cc708d0 libsystem_kernel.dylib`read + 8, queue = 'com.apple.main-thread', stop reason = signal SIGTERM
thread #4: tid = 0x1764f7, 0x000000018cc77e04 libsystem_kernel.dylib`poll + 8, name = 'gmain'
thread #5: tid = 0x176508, 0x000000018cc7a0e8 libsystem_kernel.dylib`__select + 8
thread #6: tid = 0x176520, 0x000000018cc6fce8 libsystem_kernel.dylib`mach_msg_trap + 8, name = 'com.apple.NSEventThread'
thread #36: tid = 0x178ca1, 0x000000018cc719c4 libsystem_kernel.dylib`__workq_kernreturn + 8
thread #38: tid = 0x1790f4, 0x000000018cc719c4 libsystem_kernel.dylib`__workq_kernreturn + 8
(lldb) thread backtrace all
Process 60350 exited with status = 0 (0x00000000) Terminated due to signal 9
warning: could not execute support code to read Objective-C class data in the process. This may reduce the quality of type information available.
* thread #1, queue = 'com.apple.main-thread', stop reason = signal SIGTERM
* frame #0: 0x000000018cc708d0 libsystem_kernel.dylib`read + 8
frame #1: 0x0000000100170254 emacs`emacs_intr_read(fd=17, buf=<unavailable>, nbyte=<no summary available>, interruptible=<no summary available>) at sysdep.c:2486:16
thread #4, name = 'gmain'
frame #0: 0xffffffffffffffff
thread #5
frame #0: 0xffffffffffffffff
thread #6, name = 'com.apple.NSEventThread'
frame #0: 0xffffffffffffffff
thread #36
frame #0: 0xffffffffffffffff
thread #38
frame #0: 0xffffffffffffffff
next prev parent reply other threads:[~2021-01-19 17:19 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-19 6:44 [emacs-master] Frequent freezes on macOS Pankaj Jangid
2021-01-19 9:28 ` Herbert J. Skuhra
2021-01-19 15:31 ` Pankaj Jangid
2021-01-19 15:39 ` Eli Zaretskii
2021-01-19 17:19 ` Doug Davis [this message]
2021-01-19 18:09 ` Philipp Stephani
2021-01-19 20:27 ` Simon Leinen
2021-01-19 20:41 ` Philipp Stephani
2021-01-20 8:59 ` Pankaj Jangid
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