KVM-GUEST Workqueue: writeback wb_workfn (flush-8:0)
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux (Ubuntu) |
Confirmed
|
Undecided
|
Unassigned |
Bug Description
OS:
Ubuntu 5.15.0-
VERSION="22.04.2 LTS (Jammy Jellyfish)"
Ubuntu Cloud
Background Disk: rbd
KVM: Proxmox VE
[ 30.444138] loop4: detected capacity change from 0 to 8
[143428.917901] INFO: task kworker/u8:1:2954 blocked for more than 120 seconds.
[143428.919516] Not tainted 5.15.0-73-generic #80-Ubuntu
[143428.920692] "echo 0 > /proc/sys/
[143428.922329] task:kworker/u8:1 state:D stack: 0 pid: 2954 ppid: 2 flags:0x00004000
[143428.922342] Workqueue: writeback wb_workfn (flush-8:0)
[143428.922381] Call Trace:
[143428.922386] <TASK>
[143428.922412] __schedule+
[143428.922439] schedule+0x69/0x110
[143428.922443] io_schedule+
[143428.922446] ? wbt_cleanup_
[143428.922464] rq_qos_
[143428.922473] ? wbt_rqw_
[143428.922476] ? sysv68_
[143428.922480] ? wbt_cleanup_
[143428.922482] wbt_wait+0x9f/0xf0
[143428.922485] __rq_qos_
[143428.922489] blk_mq_
[143428.922496] __submit_
[143428.922503] ? mpage_release_
[143428.922541] submit_
[143428.922545] submit_
[143428.922548] ext4_io_
[143428.922553] ext4_writepages
[143428.922557] ? kvm_sched_
[143428.922573] ? raw_spin_
[143428.922587] ? newidle_
[143428.922595] do_writepages+
[143428.922605] ? mpage_map_
[143428.922609] ? do_writepages+
[143428.922611] ? psi_task_
[143428.922617] ? raw_spin_
[143428.922619] ? finish_
[143428.922623] __writeback_
[143428.922630] writeback_
[143428.922635] __writeback_
[143428.922639] wb_writeback+
[143428.922643] wb_do_writeback
[143428.922647] wb_workfn+
[143428.922649] ? psi_task_
[143428.922651] ? raw_spin_
[143428.922654] ? finish_
[143428.922657] process_
[143428.922662] worker_
[143428.922664] ? process_
[143428.922666] kthread+0x12a/0x150
[143428.922681] ? set_kthread_
[143428.922685] ret_from_
[143428.922697] </TASK>
[1162819.008697] loop4: detected capacity change from 0 to 129936
[1274712.829337] loop5: detected capacity change from 0 to 109072
[1274713.891842] kauditd_printk_skb: 21 callbacks suppressed
---
ProblemType: Bug
AlsaDevices:
total 0
crw-rw---- 1 root audio 116, 1 Jun 5 14:29 seq
crw-rw---- 1 root audio 116, 33 Jun 5 14:29 timer
AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
ApportVersion: 2.20.11-0ubuntu82.5
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:
CRDA: N/A
CasperMD5CheckR
DistroRelease: Ubuntu 22.04
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: QEMU Standard PC (i440FX + PIIX, 1996)
Package: linux (not installed)
PciMultimedia:
ProcEnviron:
TERM=vt220
PATH=(custom, no user)
XDG_RUNTIME_
LANG=C.UTF-8
SHELL=/bin/bash
ProcFB:
ProcKernelCmdLine: BOOT_IMAGE=
ProcVersionSign
RebootRequiredPkgs: Error: path contained symlinks.
RelatedPackageV
linux-
linux-
linux-firmware N/A
RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
Tags: jammy uec-images
Uname: Linux 5.15.0-73-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: N/A
_MarkForUpload: True
dmi.bios.date: 04/01/2014
dmi.bios.release: 0.0
dmi.bios.vendor: SeaBIOS
dmi.bios.version: rel-1.16.
dmi.chassis.type: 1
dmi.chassis.vendor: QEMU
dmi.chassis.
dmi.modalias: dmi:bvnSeaBIOS:
dmi.product.name: Standard PC (i440FX + PIIX, 1996)
dmi.product.
dmi.sys.vendor: QEMU
apport information