Ocasional system freezes

zeitalex · February 21, 2019 at 5:24 AM

From time to time my LE9 freezes, and only disconnecting and reconnectin to power helps to reboot it.

I am running it on RPi3B+

in dmesg I noticed:

[43917.917648] Out of memory: Kill process 700 (kodi.bin) score 416 or sacrifice child

[43917.917744] Killed process 700 (kodi.bin) total-vm:717580kB, anon-rss:318664kB, file-rss:0kB, shmem-rss:0kB

[43918.055664] oom_reaper: reaped process 700 (kodi.bin), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB

[43919.490022] systemd-journald[204]: /dev/kmsg buffer overrun, some messages lost.

[43919.784508] vchiq: 0: ignoring ERROR from callback to service 5004

full dmesg:

http://ix.io/1bdi

tail -n 1000 kodi.old.log | paste

http://ix.io/1bdl

(unfortunately I was not able to paste full kodi.old.log probubly because it is above 16MB)

paste kodi.log

http://ix.io/1bdn

zeitalex · February 21, 2019 at 1:48 PM

Is it a SAMBA Problem?

**Klojum** · February 21, 2019 at 2:09 PM Official Post

Anything is possible. The changeover from SMBv1 to SMBv2 and up hasn't that gone well for a number of Android/Linux users. And if it's Samba only that is causing the freezing, I don't know. I prefer NFS myself.

zeitalex · February 21, 2019 at 4:17 PM

Thanks a lot for your answer. I have 2 RPi computers. Can i make one RPi an NFS-Server? Do I need to use docker for starting nfs-server? I would be very thankful to you if you could point me to tutorial.

beta-tester · February 21, 2019 at 4:53 PM

hi zeitalex,

i have a PXE-Server project that setup the RPi also to a NFS server.

i do the following to export e.g. folder /srv/my-nfs-share as rw = read write...

Code

# install, enable and start nfs-kernel-server
sudo apt install -y nfs-kernel-server;
sudo systemctl enable nfs-kernel-server.service;
sudo systemctl restart nfs-kernel-server.service;

# enable and start port mapping
sudo systemctl enable rpcbind.service;
sudo systemctl restart rpcbind.service;

#edit / add your nfs - export (share)
sudo nano /etc/exports
# for example:
/srv/my-nfs-share  *(rw,async,no_subtree_check,root_squash,mp)

# nfs-export all exports listed in /etc/exports
sudo exportfs -a

Display More

... after a reboot, all in /etc/exports should be nfs-exported automatically.

zeitalex · February 21, 2019 at 5:26 PM

Thanks a lot beta-tester. Probubly I will go this way, this may also solve my other problem: Problems mounting USB HDD after reboot

At the moment there is a LE9 installed on "Server" RPi (i need 2 LE clients).

beta-tester · February 21, 2019 at 6:26 PM

i saw in your other thread that your USB-HDD has NTFS as filesystem...

maybe exportfs will complain about something like missing id or so.

then add ,fsid=<any_unique_id> as last parameter in the bracket of the /etc/exports entry

and if you do not need to write to the HDD via nfs, then i also would suggest zu make the nfs-export as ro = read only.

e.g.:

Code

#/etc/exports
/media/my-first-hdd   *(ro,async,no_subtree_check,root_squash,mp,fsid=1234567890)
/media/my-second-hdd   *(ro,async,no_subtree_check,root_squash,mp,fsid=2345678901)

EDIT: oops, i assumed your server rpi is running raspbian.

zeitalex · February 23, 2019 at 9:37 AM

I tried to use rsync to exclude samba. But LE did freeze anyway.

paste kodi.log

http://ix.io/1box

paste kodi.old.log

http://ix.io/1boz

the kodi.old.log ends up again with:

Code

04:10:47.776 T:1936941728  NOTICE: Samba is idle. Closing the remaining connections
04:11:58.790 T:1936937840   DEBUG: CAnnouncementManager - Announcement: OnScreensaverActivated from xbmc
04:11:58.792 T:1936937840   DEBUG: GOT ANNOUNCEMENT, type: 4, from xbmc, message OnScreensaverActivated
04:11:58.806 T:1936941728   DEBUG: CAddonSettings[screensaver.xbmc.builtin.dim]: loading setting definitions
04:11:58.807 T:1936941728   DEBUG: CAddonSettings[screensaver.xbmc.builtin.dim]: trying to load setting definitions from old format...
04:11:58.808 T:1936941728   DEBUG: ------ Window Init () ------
04:39:05.427 T:1584382832   DEBUG: Thread JobWorker start, auto delete: true
04:39:35.430 T:1584382832   DEBUG: Thread JobWorker 1584382832 terminating (autodelete)
05:09:05.472 T:1584382832   DEBUG: Thread JobWorker start, auto delete: true
05:09:35.473 T:1584382832   DEBUG: Thread JobWorker 1584382832 terminating (autodelete)
05:39:05.489 T:1584382832   DEBUG: Thread JobWorker start, auto delete: true
05:39:35.494 T:1584382832   DEBUG: Thread JobWorker 1584382832 terminating (autodelete)
06:09:05.488 T:1584382832   DEBUG: Thread JobWorker start, auto delete: true
06:09:35.490 T:1584382832   DEBUG: Thread JobWorker 1584382832 terminating (autodelete)
06:56:39.928 T:1592775536   DEBUG: Thread JobWorker start, auto delete: true

Display More

I disabled screen saver, will see if this help.

zeitalex · February 25, 2019 at 9:18 AM

I solved this Problem by introducing additional RPi Server with Raspbian. It also solved Problems mounting USB HDD after reboot