Re: exited on signal 11 (no core dump - other error)

[Miroslav Lachman]

On 12/07/2024 07:02, Rick Macklem wrote:
On Thu, Jul 11, 2024 at 8:40 PM Zhenlei Huang <z...@freebsd.org> wrote:

Hi

I observed something weird on Release 14.1.

When rebooting my dev machine, I got

---<<BOOT>>---
Copyright (c) 1992-2023 The FreeBSD Project.
Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
         The Regents of the University of California. All rights reserved.
FreeBSD is a registered trademark of The FreeBSD Foundation.
FreeBSD 14.1-RELEASE releng/14.1-n267679-10e31f0946d8 GENERIC amd64
FreeBSD clang version 18.1.5 (https://github.com/llvm/llvm-project.git 
llvmorg-18.1.5-0-g617a15a9eac9)
...

em0: promiscuous mode enabled
em0: promiscuous mode disabled
Waiting (max 60 seconds) for system process `vnlru' to stop... done
Waiting (max 60 seconds) for system process `syncer' to stop...
Syncing disks, vnodes remaining... 0 0 0 0 done
All buffers synced.
pid 50599 (devd), jid 0, uid 0: exited on signal 11 (no core dump - other error)
pid 35393 (getty), jid 0, uid 0: exited on signal 11 (no core dump - other 
error)
pid 36947 (getty), jid 0, uid 0: exited on signal 11 (no core dump - other 
error)
pid 37990 (getty), jid 0, uid 0: exited on signal 11 (no core dump - other 
error)
pid 80885 (sshd), jid 0, uid 1001: exited on signal 11 (no core dump - bad 
address)
pid 79883 (sshd), jid 0, uid 0: exited on signal 11 (no core dump - bad address)
pid 14245 (sshd), jid 0, uid 0: exited on signal 11 (no core dump - bad address)
pid 49213 (ntpd), jid 0, uid 123: exited on signal 11 (no core dump - other 
error)
pid 37382 (getty), jid 0, uid 0: exited on signal 11 (no core dump - other 
error)
pid 35315 (getty), jid 0, uid 0: exited on signal 11 (no core dump - other 
error)
pid 21366 (powerd), jid 0, uid 0: exited on signal 11 (no core dump - other 
error)
pid 35735 (getty), jid 0, uid 0: exited on signal 11 (no core dump - other 
error)
pid 36339 (getty), jid 0, uid 0: exited on signal 11 (no core dump - other 
error)
pid 37346 (getty), jid 0, uid 0: exited on signal 11 (no core dump - other 
error)
Uptime: 4d1h33m9s
ukbd0: detached
uhub0: detached
---<<BOOT>>---

IIUC all processes will get signal to quit on system reboot. But what does the
signal 11 mean ? Is it EDEADLK in sys/sys/errno.h ?
I think signal 11 refers to SIGSEGV (segmentation violation).
However, I have no idea why a bunch of processes would do that during shutdown?


Something similar happens to me, but when logging into KDE Plasma. 
Sometimes it happens that desktop applications that start from a saved 
session (Firefox, Thunderbird, Telegram, Signal...) start loading and 
then everything crashes. The login screen reappears and when I log in 
again, everything crashes again until I restart the machine. The machine 
gets into this state randomly, about once a week.

Jul  5 12:24:52 xxx kernel: pid 1647 (packagekitd), jid 0, uid 0: exited 
on signal 11 (core dumped)
Jul  5 12:25:28 xxx kernel: pid 1897 (kalarm), jid 0, uid 1001: exited 
on signal 6 (core dumped)
Jul  5 12:25:36 xxx kernel: pid 1467 (Xorg), jid 0, uid 0: exited on 
signal 6 (core dumped)
Jul  5 12:25:37 xxx kernel: pid 1772 (signal-desktop), jid 0, uid 1001: 
exited on signal 5 (core dumped)
Jul  5 12:25:39 xxx pulseaudio[1630]: [] core-util.c: Failed to create 
secure directory (/var/run/user/1001/pulse): No such file or directory
Jul  5 12:25:40 xxx kernel: pid 1776 (audacious), jid 0, uid 1001: 
exited on signal 6 (core dumped)
Jul  5 12:25:41 xxx kernel: pid 1915 (drkonqi), jid 0, uid 1001: exited 
on signal 6 (core dumped)
Jul  5 12:25:42 xxx kernel: pid 1914 (kwin_x11), jid 0, uid 1001: exited 
on signal 6 (core dumped)

My system is 13.3-p3 amd64.

Kind regards
Miroslav Lachman