To make the verification more readable I will separate the verification
on Amd and Arm into different comments. As such this is Part 1 of 2 for
the verification on Questing
Questing Verification on Amd
============================
Before upgrading to -proposed
-----------------------------
bryan@crash-questing:~$ uname -a
Linux crash-questing 6.17.0-8-generic #8-Ubuntu SMP PREEMPT_DYNAMIC Fri Nov 14
21:44:46 UTC 2025 x86_64 GNU/Linux
bryan@crash-questing:~$ sudo apt install ubuntu-dbgsym-keyring
bryan@crash-questing:~$ KERNEL_VERSION="6.17.0-8-generic"
bryan@crash-questing:~$ sudo apt install
linux-image-unsigned-${KERNEL_VERSION}-dbgsym
bryan@crash-questing:~$ dpkg -l | egrep
"kexec-tools|kdump-tools|crash|makedumpfile"
ii crash 8.0.6-1ubuntu2
amd64 kernel debugging utility, allowing gdb like syntax
ii kdump-tools 1:1.10.7ubuntu2
amd64 scripts and tools for automating kdump (Linux crash
dumps)
ii kexec-tools 1:2.0.31-1ubuntu2
amd64 tools to support fast kexec reboots
ii makedumpfile 1:1.7.6-1
amd64 VMcore extraction tool
bryan@crash-questing:~$ echo c | sudo tee /proc/sysrq-trigger
bryan@crash-questing:~$ crash
/usr/lib/debug/boot/vmlinux-6.17.0-8-generic
/var/crash/202512171642/dump.202512171642
crash 8.0.6
Copyright (C) 2002-2025 Red Hat, Inc.
Copyright (C) 2004, 2005, 2006, 2010 IBM Corporation
Copyright (C) 1999-2006 Hewlett-Packard Co
Copyright (C) 2005, 2006, 2011, 2012 Fujitsu Limited
Copyright (C) 2006, 2007 VA Linux Systems Japan K.K.
Copyright (C) 2005, 2011, 2020-2024 NEC Corporation
Copyright (C) 1999, 2002, 2007 Silicon Graphics, Inc.
Copyright (C) 1999, 2000, 2001, 2002 Mission Critical Linux, Inc.
Copyright (C) 2015, 2021 VMware, Inc.
This program is free software, covered by the GNU General Public License,
and you are welcome to change it and/or distribute copies of it under
certain conditions. Enter "help copying" to see the conditions.
This program has absolutely no warranty. Enter "help warranty" for details.
GNU gdb (GDB) 10.2
Copyright (C) 2021 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 "x86_64-pc-linux-gnu".
Type "show configuration" for configuration details.
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"...
warning: Section .debug_names in
/usr/lib/debug/boot/vmlinux-6.17.0-8-generic length 121092 does not
match section length 419792, ignoring .debug_names.
please wait... (gathering module symbol data)
# Never loads
Upgrading to -proposed
----------------------
bryan@crash-questing:~$ sudo apt install crash=8.0.6-1ubuntu2.25.10.1
bryan@crash-questing:~$ dpkg -l | egrep
"kexec-tools|kdump-tools|crash|makedumpfile"
ii crash 8.0.6-1ubuntu2.25.10.1
amd64 kernel debugging utility, allowing gdb like syntax
ii kdump-tools 1:1.10.7ubuntu2
amd64 scripts and tools for automating kdump (Linux crash
dumps)
ii kexec-tools 1:2.0.31-1ubuntu2
amd64 tools to support fast kexec reboots
ii makedumpfile 1:1.7.6-1
amd64 VMcore extraction tool
Open the same dump
bryan@crash-questing:~$ crash
/usr/lib/debug/boot/vmlinux-6.17.0-8-generic
/var/crash/202512171642/dump.202512171642
crash 8.0.6
Copyright (C) 2002-2025 Red Hat, Inc.
Copyright (C) 2004, 2005, 2006, 2010 IBM Corporation
Copyright (C) 1999-2006 Hewlett-Packard Co
Copyright (C) 2005, 2006, 2011, 2012 Fujitsu Limited
Copyright (C) 2006, 2007 VA Linux Systems Japan K.K.
Copyright (C) 2005, 2011, 2020-2024 NEC Corporation
Copyright (C) 1999, 2002, 2007 Silicon Graphics, Inc.
Copyright (C) 1999, 2000, 2001, 2002 Mission Critical Linux, Inc.
Copyright (C) 2015, 2021 VMware, Inc.
This program is free software, covered by the GNU General Public License,
and you are welcome to change it and/or distribute copies of it under
certain conditions. Enter "help copying" to see the conditions.
This program has absolutely no warranty. Enter "help warranty" for details.
GNU gdb (GDB) 10.2
Copyright (C) 2021 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 "x86_64-pc-linux-gnu".
Type "show configuration" for configuration details.
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"...
warning: Section .debug_names in
/usr/lib/debug/boot/vmlinux-6.17.0-8-generic length 121092 does not
match section length 419792, ignoring .debug_names.
KERNEL: /usr/lib/debug/boot/vmlinux-6.17.0-8-generic
DUMPFILE: /var/crash/202512171642/dump.202512171642 [PARTIAL DUMP]
CPUS: 1
DATE: Thu Jan 1 00:00:00 UTC 1970
UPTIME: 00:05:07
LOAD AVERAGE: 0.14, 0.19, 0.10
TASKS: 148
NODENAME: crash-questing
RELEASE: 6.17.0-8-generic
VERSION: #8-Ubuntu SMP PREEMPT_DYNAMIC Fri Nov 14 21:44:46 UTC 2025
MACHINE: x86_64 (4291 Mhz)
MEMORY: 3.9 GB
PANIC: "Kernel panic - not syncing: sysrq triggered crash"
PID: 6125
COMMAND: "tee"
TASK: ffff8e8fce550000 [THREAD_INFO: ffff8e8fce550000]
CPU: 0
STATE: TASK_RUNNING (PANIC)
crash> bt
PID: 6125 TASK: ffff8e8fce550000 CPU: 0 COMMAND: "tee"
#0 [ffffd31e80e5fbe8] machine_kexec at ffffffffa5dd32c6
#1 [ffffd31e80e5fc20] __crash_kexec at ffffffffa5f68ae8
#2 [ffffd31e80e5fce8] vpanic at ffffffffa5c14114
#3 [ffffd31e80e5fd78] sysrq_handle_crash at ffffffffa6906f1a
#4 [ffffd31e80e5fd88] __handle_sysrq.cold at ffffffffa5caed0b
...
crash> files
PID: 6125 TASK: ffff8e8fce550000 CPU: 0 COMMAND: "tee"
ROOT: / CWD: /home/bryan
FD FILE DENTRY INODE TYPE PATH
0 ffff8e8fc31519c0 ffff8e8fc94bcd80 ffff8e8fd61c1638 FIFO
1 ffff8e8fc2575600 ffff8e8fc94c7540 ffff8e8fc96858b0 CHR /dev/pts/0
2 ffff8e8fc2575600 ffff8e8fc94c7540 ffff8e8fc96858b0 CHR /dev/pts/0
3 ffff8e8fc0de2180 ffff8e8fc94bc240 ffff8e8fd63bcb48 REG /proc/sysrq-trigger
crash> files
PID: 6125 TASK: ffff8e8fce550000 CPU: 0 COMMAND: "tee"
ROOT: / CWD: /home/bryan
FD FILE DENTRY INODE TYPE PATH
0 ffff8e8fc31519c0 ffff8e8fc94bcd80 ffff8e8fd61c1638 FIFO
1 ffff8e8fc2575600 ffff8e8fc94c7540 ffff8e8fc96858b0 CHR /dev/pts/0
2 ffff8e8fc2575600 ffff8e8fc94c7540 ffff8e8fc96858b0 CHR /dev/pts/0
3 ffff8e8fc0de2180 ffff8e8fc94bc240 ffff8e8fd63bcb48 REG /proc/sysrq-trigger
crash> mount
MOUNT SUPERBLK TYPE DEVNAME DIRNAME
ffff8e8fc02af000 ffff8e8fc0341800 rootfs rootfs /
ffff8e8fc0d76c00 ffff8e8fca819000 sysfs sysfs /sys
ffff8e8fc0d76900 ffff8e8fca81a800 proc proc /proc
...
crash> vm
PID: 6125 TASK: ffff8e8fce550000 CPU: 0 COMMAND: "tee"
MM PGD RSS TOTAL_VM
ffff8e8fc007aa00 ffff8e8fc2da0000 7260k 15676k
VMA START END FLAGS FILE
ffff8e8fc2a1a900 5d663f416000 5d663f50a000 8000071
/usr/lib/cargo/bin/coreutils/tee
ffff8e8fc2a1ae40 5d663f50a000 5d663fa13000 8000075
/usr/lib/cargo/bin/coreutils/tee
ffff8e8fc2a1a480 5d663fa13000 5d663fdb7000 8000071
/usr/lib/cargo/bin/coreutils/tee
ffff8e8fc2a1a600 5d663fdb7000 5d663fe65000 8100071
/usr/lib/cargo/bin/coreutils/tee
...
crash> irq
IRQ IRQ_DESC/_DATA IRQACTION NAME
0 ffff8e8fc0260a00 (unused)
1 ffff8e8fc0260c00 ffff8e8fc01d9600 "i8042"
...
crash> net
NET_DEVICE NAME IP ADDRESS(ES)
ffff8e8fc109c000 lo 127.0.0.1, ::1
ffff8e8fc109f000 enp1s0 192.168.122.173, fe80::5054:ff:fe01:6986
crash> mod
MODULE NAME TEXT_BASE SIZE
OBJECT FILE
ffffffffc0546e40 aesni_intel ffffffffc0600000 94208
(not loaded) [CONFIG_KALLSYMS]
ffffffffc054f040 virtio_dma_buf ffffffffc060e000 12288
(not loaded) [CONFIG_KALLSYMS]
ffffffffc055b740 virtio_gpu ffffffffc060f000 110592
(not loaded) [CONFIG_KALLSYMS]
ffffffffc0553280 virtio_rng ffffffffc061c000 12288
(not loaded) [CONFIG_KALLSYMS]
...
The -proposed crash can open dumps generated by the Questing
makedumpfile on the 6.17 kernel on amd64
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/2125145
Title:
[SRU] Makedumpfile: Errors and Page Exclusions When Opening Kernel
Crashdump Files Generated on the Latest HWE Kernel
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