bcache is unstable on ppc64el
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux (Ubuntu) |
Confirmed
|
High
|
Unassigned |
Bug Description
Stopping and unregistering bcache caches and backing devices results in losing the bcache superblock on devices rendering bcached devices corrupt or broken.
1. Ubuntu 4.4.0-28.47-generic 4.4.13
2. attaching lspci log
3.
Description: Ubuntu 16.04 LTS
Release: 16.04
4. # apt-cache policy linux-image
linux-image:
Installed: (none)
Candidate: (none)
Version table:
root@rharper-vm1:~# apt-cache policy linux-image-generic
linux-image-
Installed: (none)
Candidate: 4.4.0.28.30
Version table:
4.4.0.28.30 500
500 http://
500 http://
4.4.0.21.22 500
500 http://
5. After creating bcache devices, upon reboot they continue to remain as bcache devices for use
6. Sometimes after reboot either the cache device, or the backing device loses the bcache-super-block rendering them useless to the bcache module (it fails to detect them).
ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: linux-image-
ProcVersionSign
Uname: Linux 4.4.0-28-generic ppc64le
AlsaDevices:
total 0
crw-rw---- 1 root audio 116, 1 Jul 11 21:30 seq
crw-rw---- 1 root audio 116, 33 Jul 11 21:30 timer
AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
ApportVersion: 2.20.1-0ubuntu2.1
Architecture: ppc64el
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
Date: Tue Jul 12 14:20:24 2016
IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig'
Lsusb:
Bus 001 Device 003: ID 0627:0001 Adomax Technology Co., Ltd
Bus 001 Device 002: ID 0627:0001 Adomax Technology Co., Ltd
Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
PciMultimedia:
ProcEnviron:
TERM=screen
PATH=(custom, no user)
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcFB: 0 OFfb vga
ProcKernelCmdLine: BOOT_IMAGE=
ProcLoadAvg: 6.28 4.78 4.12 1/133 4838
ProcLocks:
1: POSIX ADVISORY WRITE 1306 00:11:541 0 EOF
2: FLOCK ADVISORY WRITE 918 00:11:521 0 EOF
3: POSIX ADVISORY WRITE 875 00:11:507 0 EOF
4: POSIX ADVISORY WRITE 870 00:11:123 0 EOF
5: POSIX ADVISORY WRITE 682 00:11:358 0 EOF
ProcSwaps: Filename Type Size Used Priority
ProcVersion: Linux version 4.4.0-28-generic (buildd@
RelatedPackageV
linux-
linux-
linux-firmware N/A
RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
cpu_cores: Number of cores present = 1
cpu_coreson: Number of cores online = 1
cpu_dscr: DSCR is 0
cpu_freq:
min: 3.684 GHz (cpu 0)
max: 3.684 GHz (cpu 0)
avg: 3.684 GHz
cpu_runmode: run-mode=0
cpu_smt: Error: command ['ppc64_cpu', '--smt'] failed with exit code 255: Machine is not SMT capable
Changed in linux (Ubuntu): | |
importance: | Undecided → High |
tags: | added: kernel-da-key |
tags: | added: patch |
This change was made by a bot.