Public bug reported:
I try to delete a disk from a BTRFS in RAID-10 mode. (not on top of RAID-10)
At random time the whole system simply holds in between of this operation. All
the drives are attached to SATA-6/3 ports. Unfortunately there is absolutely
nothing in the log before the crash (kernel.log)
During delete operation the cash memory increases steadily but this might be
normal?! For this I have attached a screenshot.
The crash happened multiple times for two drives now.
I can delete drives from crash to crash, the crash is random, sometime btrfs
frees several hundred GB without problems, so I can delete a drive finally.
If there is anything I can do to help debug this, please let me know and I
start over again.
This is what kernel.log says before the crash.
Nov 10 23:33:29 next kernel: [55671.766021] BTRFS info (device sda2): found 61
extents
Nov 10 23:33:30 next kernel: [55672.510210] BTRFS info (device sda2):
relocating block group 2848171491328 flags 65
Nov 10 23:34:00 next kernel: [55702.661005] BTRFS info (device sda2): found
18331 extents
Nov 10 23:34:09 next kernel: [55712.079897] BTRFS info (device sda2): found
18331 extents
Nov 10 23:34:10 next kernel: [55712.999124] BTRFS info (device sda2):
relocating block group 5085916561408 flags 65
Nov 10 23:34:38 next kernel: [55740.998170] BTRFS info (device sda2): found
9116 extents
Nov 10 23:34:51 next kernel: [55753.269616] BTRFS info (device sda2): found
9116 extents
Nov 10 23:34:51 next kernel: [55753.958786] BTRFS info (device sda2):
relocating block group 4207595749376 flags 65
ProblemType: Bug
DistroRelease: Ubuntu 15.10
Package: btrfs-tools 4.0-2
ProcVersionSignature: Ubuntu 4.2.0-17.21-generic 4.2.3
Uname: Linux 4.2.0-17-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.19.1-0ubuntu4
Architecture: amd64
Date: Thu Nov 12 08:44:43 2015
InstallationDate: Installed on 2012-10-15 (1122 days ago)
InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121014)
SourcePackage: btrfs-tools
UpgradeStatus: Upgraded to wily on 2015-11-02 (9 days ago)
** Affects: btrfs-tools (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug wily
** Attachment added: "memory-day.png"
https://bugs.launchpad.net/bugs/1515510/+attachment/4517400/+files/memory-day.png
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1515510
Title:
btrfs device delete crashes system
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/btrfs-tools/+bug/1515510/+subscriptions
--
ubuntu-bugs mailing list
[email protected]
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
