apport information
** Tags added: apport-collected uec-images xenial
** Description changed:
When running 2 docker containers, one as samba server and another one as
samba client that mounts and umounts a smb share a kernel OOps can be
triggered on multiple kernels.
The kernel message:
unregister_netdevice: waiting for lo to become free. Usage count = 1
shows up, some minutes later the oops and/or warnings happens.
The scripts to trigger the kernel Oops can be found at:
https://github.com/fho/docker-samba-loop
I was able to reproduce kernel Oopses on a clean Ubuntu 16.0.4 installation
with:
- linux-image-4.4.0-93-generic=4.4.0-93.116~14.04.1
- linux-image-4.10.0-32-generic=4.10.0-32.36~16.04.1
- linux-image-4.11.0-14-generic=4.11.0-14.20~16.04.1
In a different scenario were Ubuntu 16.04 servers were running multiple
docker containers with Nginx or small network applications in parallel,
I was also able to reproduce the kernel Oopses also on:
- linux-image-4.10.0-1004-gcp
- linux-image-4.12.10-041210-generic=4.12.10-041210.20170830
I haven't tried again to reproduce it with those kernels on a clean Ubuntu
installation and unfortunately didn't kept the kernel logs.
The "unregister_netdevice: waiting for lo to become free. Usage count =
1" messages are related to
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1711407 which is
handled as separate issue.
According to https://github.com/moby/moby/issues/35068 the crash is fixed by:
https://patchwork.ozlabs.org/patch/801533/
https://patchwork.ozlabs.org/patch/778449/
+ ---
+ AlsaDevices:
+ total 0
+ crw-rw---- 1 root audio 116, 1 Nov 3 09:51 seq
+ crw-rw---- 1 root audio 116, 33 Nov 3 09:51 timer
+ AplayDevices: Error: [Errno 2] No such file or directory
+ ApportVersion: 2.20.1-0ubuntu2.10
+ Architecture: amd64
+ ArecordDevices: Error: [Errno 2] No such file or directory
+ AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq',
'/dev/snd/timer'] failed with exit code 1:
+ CRDA: N/A
+ DistroRelease: Ubuntu 16.04
+ IwConfig: Error: [Errno 2] No such file or directory
+ Lsusb: Error: command ['lsusb'] failed with exit code 1:
+ MachineType: Google Google Compute Engine
+ Package: linux (not installed)
+ PciMultimedia:
+
+ ProcEnviron:
+ TERM=rxvt-unicode-256color
+ PATH=(custom, no user)
+ LANG=en_US.UTF-8
+ SHELL=/bin/bash
+ ProcFB:
+
+ ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.10.0-37-generic
root=UUID=bf9a017a-931d-4191-84bc-b8434dbba527 ro scsi_mod.use_blk_mq=Y
console=ttyS0
+ ProcVersionSignature: Ubuntu 4.10.0-37.41~16.04.1-generic 4.10.17
+ RelatedPackageVersions:
+ linux-restricted-modules-4.10.0-37-generic N/A
+ linux-backports-modules-4.10.0-37-generic N/A
+ linux-firmware N/A
+ RfKill: Error: [Errno 2] No such file or directory
+ Tags: xenial uec-images xenial uec-images
+ Uname: Linux 4.10.0-37-generic x86_64
+ UnreportableReason: The report belongs to a package that is not installed.
+ UpgradeStatus: No upgrade log present (probably fresh install)
+ UserGroups:
+
+ _MarkForUpload: False
+ dmi.bios.date: 01/01/2011
+ dmi.bios.vendor: Google
+ dmi.bios.version: Google
+ dmi.board.asset.tag: A3DDBB61-646B-C60C-3999-1F1D7B7A334A
+ dmi.board.name: Google Compute Engine
+ dmi.board.vendor: Google
+ dmi.chassis.type: 1
+ dmi.chassis.vendor: Google
+ dmi.modalias:
dmi:bvnGoogle:bvrGoogle:bd01/01/2011:svnGoogle:pnGoogleComputeEngine:pvr:rvnGoogle:rnGoogleComputeEngine:rvr:cvnGoogle:ct1:cvr:
+ dmi.product.name: Google Compute Engine
+ dmi.sys.vendor: Google
** Attachment added: "CurrentDmesg.txt"
https://bugs.launchpad.net/bugs/1729637/+attachment/5002896/+files/CurrentDmesg.txt
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https://bugs.launchpad.net/bugs/1729637
Title:
Samba mount/umount in docker container triggers kernel Oops
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