[Bug 294390] devel/gdb: kgdb dies with SIGSEGV
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Date: Fri, 10 Apr 2026 16:16:48 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=294390
Bug ID: 294390
Summary: devel/gdb: kgdb dies with SIGSEGV
Product: Ports & Packages
Version: Latest
Hardware: powerpc
OS: Any
Status: New
Severity: Affects Only Me
Priority: ---
Component: Individual Port(s)
Assignee: pizzamig@freebsd.org
Reporter: ivy@FreeBSD.org
CC: powerpc@FreeBSD.org, ppc@FreeBSD.org
Assignee: pizzamig@freebsd.org
Flags: maintainer-feedback?(pizzamig@freebsd.org)
CC: powerpc@FreeBSD.org
using devel/gdb 15.1_4, on 16.0-CURRENT (commit 82ff1c334b97) on powerpc64 as a
VM under Linux QEMU/KVM, kgdb dies with SIGSEGV trying to debug a kernel dump:
root@ppc64-main:~ # kgdb /boot/kernel/kernel /var/crash/vmcore.0
GNU gdb (GDB) 15.1 [GDB v15.1 for FreeBSD]
Copyright (C) 2024 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
Type "show copying" and "show warranty" for details.
This GDB was configured as "powerpc64-portbld-freebsd16.0".
Type "show configuration" for configuration details.
For bug reporting instructions, please see:
<https://www.gnu.org/software/gdb/bugs/>.
Find the GDB manual and other documentation resources online at:
<http://www.gnu.org/software/gdb/documentation/>.
For help, type "help".
Type "apropos word" to search for commands related to "word"...
Reading symbols from /boot/kernel/kernel...
Reading symbols from /usr/lib/debug//boot/kernel/kernel.debug...
Fatal signal: Segmentation fault
----- Backtrace -----
0x106484af ???
0x107ad913 ???
0x107ae687 ???
0x81247c08b ???
0x81247b2bb ???
---------------------
A fatal error internal to GDB has been detected, further
debugging is not possible. GDB will now terminate.
This is a bug, please report it. For instructions, see:
<https://www.gnu.org/software/gdb/bugs/>.
Segmentation fault (core dumped)
root@ppc64-main:~ #
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