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:
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:
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: netdevice: waiting for lo to become free. Usage count = 1
unregister_
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 4.10.0- 32-generic= 4.10.0- 32.36~16. 04.1 4.11.0- 14-generic= 4.11.0- 14.20~16. 04.1
- linux-image-
- linux-image-
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 4.12.10- 041210- generic= 4.12.10- 041210. 20170830
- linux-image-
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: /patchwork. ozlabs. org/patch/ 801533/ /patchwork. ozlabs. org/patch/ 778449/
https:/
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