Hello step21,
I can replicate your bug with fstrim -a command. Can you please try it (save
your work before)?
In fact, bug reproduces itself in a weekly bases thanks to fstrim systemd
timer. Timer can be disabled with: sudo systemctl disable fstrim.timer command.
In my understanding, fstrim tries to trim cache drive, however it locked
by bcache.
OS: Ubuntu 18.10
Kernel: 4.18.0-12-generic #13-Ubuntu
Can you please confirm?
** Changed in: linux (Ubuntu)
Status: Expired => Incomplete
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https://bugs.launchpad.net/bugs/1793901
Title:
kernel oops in bcache module
Status in linux package in Ubuntu:
Incomplete
Bug description:
This was on an 18.04.1 install running the 4.15-34 generic kernel image,
running from a normal ext4 root device.
I had just a short while before created a new bcache device that was mounted
but to which no data had been written yet. Then without any apparent particular
reason, an apport error popped up to inform of a bcache kernel oops. Crash log
was uploaded but no idea how to link it, so I attach it as well.
Mostly I would like to know how concerned I should be as after a previous,
successful test I wanted to move the whole install to bcache. Ideally, if this
is a bug or similar, it would be nice if it could get fixed.
ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: linux-image-4.15.0-34-generic 4.15.0-34.37
ProcVersionSignature: Ubuntu 4.15.0-34.37-generic 4.15.18
Uname: Linux 4.15.0-34-generic x86_64
NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair nvidia_modeset
nvidia
ApportVersion: 2.20.9-0ubuntu7.3
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Sat Sep 22 18:20:22 2018
HibernationDevice: RESUME=UUID=6bcbe7fa-85b7-4baf-9b69-0558a668bcdd
InstallationDate: Installed on 2014-07-29 (1515 days ago)
InstallationMedia: It
IwConfig:
zthnhe3w6d no wireless extensions.
eth1 no wireless extensions.
lo no wireless extensions.
MachineType: System manufacturer System Product Name
ProcEnviron:
TERM=xterm-256color
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=de_DE.UTF-8
SHELL=/bin/bash
ProcFB: 0 EFI VGA
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.15.0-34-generic
root=UUID=ebbab625-f14e-44ba-84d5-025ed92a5b2a ro quiet splash
RelatedPackageVersions:
linux-restricted-modules-4.15.0-34-generic N/A
linux-backports-modules-4.15.0-34-generic N/A
linux-firmware 1.173.1
RfKill:
0: hci0: Bluetooth
Soft blocked: yes
Hard blocked: no
SourcePackage: linux
UpgradeStatus: Upgraded to bionic on 2018-09-07 (15 days ago)
dmi.bios.date: 10/22/2015
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 0604
dmi.board.asset.tag: Default string
dmi.board.name: H170I-PLUS D3
dmi.board.vendor: ASUSTeK COMPUTER INC.
dmi.board.version: Rev X.0x
dmi.chassis.asset.tag: Default string
dmi.chassis.type: 3
dmi.chassis.vendor: Default string
dmi.chassis.version: Default string
dmi.modalias:
dmi:bvnAmericanMegatrendsInc.:bvr0604:bd10/22/2015:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKCOMPUTERINC.:rnH170I-PLUSD3:rvrRevX.0x:cvnDefaultstring:ct3:cvrDefaultstring:
dmi.product.family: Default string
dmi.product.name: System Product Name
dmi.product.version: System Version
dmi.sys.vendor: System manufacturer
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