Tested in dump file form in ppc64el; working.
ppc64el
-------
vm
SERIES=noble
ARCH=ppc64el
DISK=${SERIES}_${ARCH}.qcow2
wget
https://cloud-images.ubuntu.com/$SERIES/current/${SERIES}-server-cloudimg-${ARCH}.img
qemu-img create -F qcow2 -b ${SERIES}-server-cloudimg-${ARCH}.img -f
qcow2 $DISK 8G
sudo apt install -y qemu-system-ppc
qemu-system-ppc64 \
-machine pseries -cpu POWER10 \
\
-smp cpus=2 -m 2048 \
-nodefaults -no-user-config \
-nographic -serial stdio \
\
-drive file=$DISK,if=none,id=drive0 \
-device virtio-blk,drive=drive0 \
\
-drive file=test-cidata.iso,media=cdrom \
\
-netdev user,hostfwd=::22223-:22,id=net0 \
-device virtio-net,netdev=net0
$ ssh ubuntu@127.0.0.1 -p 22223
$ lsb_release -cs
No LSB modules are available.
noble
$ uname -m
ppc64le
$ uname -rv
6.5.0-9-generic #9-Ubuntu SMP Fri Oct 6 20:21:54 UTC 2023
kdump-tools
sudo apt update && sudo apt install -y linux-crashdump # No, Yes
sudo sed 's/crashkernel=[^" ]\+/crashkernel=512M/' -i
/etc/default/grub.d/kdump-tools.cfg
sudo update-grub && sudo reboot
...
$ sudo dmesg | grep 'crashkernel.*RAM'
[ 0.000000] Reserving 512MB of memory at 512MB for crashkernel
(System RAM: 2048MB)
$ sudo kdump-config status
current state : ready to kdump
crashdump
$ echo c | sudo tee /proc/sysrq-trigger
$ find /var/crash
/var/crash
/var/crash/202401082101
/var/crash/202401082101/dmesg.202401082101
/var/crash/202401082101/dump.202401082101
/var/crash/kexec_cmd
/var/crash/kdump_lock
debug symbols
dpkg -l | awk '$2 ~ /linux-image-[0-9.-]+-generic/ { print $2, $3}' \
| while read pkg version; do \
dbgpkg="${pkg}-dbgsym"; \
arch=$(dpkg --print-architecture); \
wget
"https://launchpad.net/ubuntu/+archive/primary/+files/${dbgpkg}_${version}_${arch}.ddeb";;
\
done
ar p linux-image-*-dbgsym_*.ddeb data.tar.xz | tar xJ
--wildcards './usr/lib/debug/boot/vmlinux-*-generic'
crash
sudo add-apt-repository -y ppa:mfo/lp2047861-noble-crash && sudo
apt install -y crash
$ dpkg -s crash | grep Version:
Version: 8.0.4-1ubuntu1
$ crash ./usr/lib/debug/boot/vmlinux-*-generic /var/crash/*/dump.*
...
KERNEL: ./usr/lib/debug/boot/vmlinux-6.6.0-14-generic
DUMPFILE: /var/crash/202401082101/dump.202401082101 [PARTIAL DUMP]
CPUS: 2
DATE: Mon Jan 8 21:00:05 UTC 2024
UPTIME: 00:20:30
LOAD AVERAGE: 0.12, 0.15, 0.39
TASKS: 140
NODENAME: test
RELEASE: 6.6.0-14-generic
VERSION: #14-Ubuntu SMP Thu Nov 30 10:29:25 UTC 2023
MACHINE: ppc64le (1000 Mhz)
MEMORY: 2 GB
PANIC: "Kernel panic - not syncing: sysrq triggered crash"
PID: 1174
COMMAND: "tee"
TASK: c000000047f89900 [THREAD_INFO: c000000047f89900]
CPU: 1
STATE: TASK_RUNNING (PANIC)
crash> bt
PID: 1174 TASK: c000000047f89900 CPU: 1 COMMAND: "tee"
R0: c000000000305af8 R1: c000000047df7890 R2: c000000002162b00
R3: c000000047df78a8 R4: 0000000000000000 R5: 0000000000000000
R6: c000000047df7a58 R7: 0000000000000000 R8: 0000000000000001
R9: c00000000ec87000 R10: 0000000000000000 R11: 0000000000000000
R12: 0000000000000000 R13: c00000007fffee80 R14: 0000000000000000
R15: ffffffffffffdfc4 R16: 0000182cb62e2458 R17: 0000000000000080
R18: 0000008100000000 R19: 00007fffe1a2c5d8 R20: 00007fffe1a2c5a0
R21: 0000000000000000 R22: 0000000000000002 R23: 0000000000000001
R24: c000000003aa0390 R25: 0000000000000000 R26: 0000000000000004
R27: c0000000038a4a20 R28: c000000003cbace0 R29: c000000003cbad20
R30: c000000003d12b00 R31: 0000000000000000
NIP: c000000000303904 MSR: 8000000000009033 OR3: 0000000000000000
CTR: 0000000000000000 LR: c000000000305af8 XER: 0000000020040004
CCR: 0000000024048200 MQ: 0000000000000001 DAR: 0000000000000000
DSISR: 0000000000000000 Syscall Result: 0000000000000000
[NIP : crash_setup_regs+84]
[LR : __crash_kexec+152]
#0 [c000000047df7890] crash_setup_regs at c000000000303904
crash> quit
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to crash in Ubuntu.
https://bugs.launchpad.net/bugs/2047861
Title:
Merge crash 8.0.4-1 into Noble
Status in crash package in Ubuntu:
In Progress
Bug description:
$ rmadison -a source crash | grep noble
crash | 8.0.3+ds1-3ubuntu1 | noble | source
$ rmadison -a source -u debian -s unstable crash
crash | 8.0.4-1 | unstable | source
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/crash/+bug/2047861/+subscriptions
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