ubuntu20.04 crash

[susew]

[4845314.925034] Call Trace:
[4845314.925322] shrink_active_list+0xc1/0x4b0
[4845314.925768] ? shrink_inactive_list+0x297/0x3e0
[4845314.926262] shrink_node_memcg+0x28a/0x370
[4845314.926715] ? css_next_descendant_pre+0x54/0x70
[4845314.927230] ? css_next_descendant_pre+0x54/0x70
[4845314.927733] shrink_node+0xbd/0x410
[4845314.928126] balance_pgdat+0x319/0x590
[4845314.928538] kswapd+0x1f8/0x3c0
[4845314.928898] ? wait_woken+0x80/0x80
[4845314.929285] kthread+0x104/0x140
[4845314.929645] ? balance_pgdat+0x590/0x590
[4845314.930078] ? kthread_park+0x90/0x90
[4845314.930484] ret_from_fork+0x22/0x40
---
ProblemType: Bug
AlsaDevices:
 total 0
 crw-rw---- 1 root audio 116, 1 Oct 19 11:18 seq
 crw-rw---- 1 root audio 116, 33 Oct 19 11:18 timer
AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
ApportVersion: 2.20.11-0ubuntu27.18
Architecture: amd64
ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord'
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
CasperMD5CheckResult: skip
DistroRelease: Ubuntu 20.04
InstallationDate: Installed on 2021-06-23 (120 days ago)
InstallationMedia:

IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig'
Lsusb:
 Bus 001 Device 002: ID 0627:0001 Adomax Technology Co., Ltd QEMU USB Tablet
 Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Lsusb-t:
 /: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=uhci_hcd/2p, 12M
     |__ Port 1: Dev 2, If 0, Class=Human Interface Device, Driver=usbhid, 12M
MachineType: Alibaba Cloud Alibaba Cloud ECS
Package: linux (not installed)
PciMultimedia:

ProcEnviron:
 TERM=linux
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcFB: 0 cirrusdrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-77-generic root=UUID=13843fcc-f592-4868-b87f-3784967cd0c4 ro vga=792 console=tty0 console=ttyS0,115200n8 net.ifnames=0 noibrs quiet crashkernel=512M-:192M
ProcVersionSignature: Ubuntu 5.4.0-77.86-generic 5.4.119
RelatedPackageVersions:
 linux-restricted-modules-5.4.0-77-generic N/A
 linux-backports-modules-5.4.0-77-generic N/A
 linux-firmware 1.187.15
RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
Tags: focal
Uname: Linux 5.4.0-77-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: N/A
_MarkForUpload: True
dmi.bios.date: 04/01/2014
dmi.bios.vendor: SeaBIOS
dmi.bios.version: 8c24b4c
dmi.chassis.type: 1
dmi.chassis.vendor: Alibaba Cloud
dmi.chassis.version: pc-i440fx-2.1
dmi.modalias: dmi:bvnSeaBIOS:bvr8c24b4c:bd04/01/2014:svnAlibabaCloud:pnAlibabaCloudECS:pvrpc-i440fx-2.1:cvnAlibabaCloud:ct1:cvrpc-i440fx-2.1:
dmi.product.name: Alibaba Cloud ECS
dmi.product.version: pc-i440fx-2.1
dmi.sys.vendor: Alibaba Cloud

[susew (susew)]

kernel version 5.4.0-77-generic

[Ubuntu Foundations Team Bug Bot (crichton)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. It seems that your bug report is not filed about a specific source package though, rather it is just filed against Ubuntu in general. It is important that bug reports be filed about source packages so that people interested in the package can find the bugs about it. You can find some hints about determining what package your bug might be about at https://wiki.ubuntu.com/Bugs/FindRightPackage. You might also ask for help in the #ubuntu-bugs irc channel on Freenode.

To change the source package that this bug is filed about visit https://bugs.launchpad.net/ubuntu/+bug/1947853/+editstatus and add the package name in the text box next to the word Package.

[This is an automated message. I apologize if it reached you inappropriately; please just reply to this message indicating so.]

[Ubuntu Kernel Bot (ubuntu-kernel-bot)]

This bug is missing log files that will aid in diagnosing the problem. While running an Ubuntu kernel (not a mainline or third-party kernel) please enter the following command in a terminal window:

apport-collect 1947853

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.

[susew (susew)]

apport information

[susew (susew)]

apport information

[susew (susew)]

apport information

[susew (susew)]

apport information

[susew (susew)]

apport information

[susew (susew)]

apport information

[susew (susew)]

apport information

[susew (susew)]

apport information

[susew (susew)]

apport information

[susew (susew)]

apport information

[susew (susew)]

apport information

[susew (susew)]

apport information