The problem doesn't appear again.
** Changed in: linux-meta-hwe-5.4 (Ubuntu)
Status: New => Incomplete
** Changed in: linux-meta-hwe-5.4 (Ubuntu)
Status: Incomplete => Invalid
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https://bugs.launchpad.net/bugs/1952193
Title:
NULL pointer dereference at _mod_memcg_state+0x14/0xb0
Status in linux-meta-hwe-5.4 package in Ubuntu:
Invalid
Bug description:
Hello.
We meet a randomly host kernel panics with same RIP and "BUG: kernel NULL
pointer dereference".
At current time affected kernel versions was from 5.4.0-53 to 5.4.0-87.
For now i have a dmesg log and crash file, but no clue where what to do next.
------------------------------------------------------------------------
Environment:
Distributor ID: Ubuntu
Description: Ubuntu 18.04.6 LTS
Release: 18.04
Codename: bionic
Crash report
KERNEL: usr/lib/debug/boot/vmlinux-5.4.0-84-generic
DUMPFILE: dump.202111240900 [PARTIAL DUMP]
CPUS: 24
DATE: Wed Nov 24 09:00:22 2021
UPTIME: 15 days, 23:17:07
LOAD AVERAGE: 46.41, 37.67, 30.39
TASKS: 3071
NODENAME: cmp20
RELEASE: 5.4.0-84-generic
VERSION: #94~18.04.1-Ubuntu SMP Thu Aug 26 23:17:46 UTC 2021
MACHINE: x86_64 (2299 Mhz)
MEMORY: 255.9 GB
PANIC: "Oops: 0000 [#1] SMP PTI" (check log for details)
PID: 2239917
COMMAND: "CPU 0/KVM"
TASK: ffff9bbd96620000 [THREAD_INFO: ffff9bbd96620000]
CPU: 14
STATE: TASK_RUNNING (PANIC)
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