801651 - PandaBoard: untracked pid exit

Status: RESOLVED FIXED

(Firefox OS Graveyard :: General, defect)

Description

[Thomas Zimmermann [:tzimmermann] [:tdz]]

On the PandaBoard, I often see errors in the form of

> init: untracked pid 1360 exited

I haven't figured out what the processes are, but I suspect they are b2g's OOPs. This might also be unrelated to the PandaBoard's environment itself and caused in some higher layer.

Comment 1

[Chris Jones [:cjones] inactive; ni?/f?/r? if you need me]

If the main b2g process exits or crashes before its plugin-container subprocesses, then the subprocesses will be reparented to init.

This can happen during normal shutdown / restart, and it's not unexpected.  If it happens at any other time, it's not expected.

Comment 2

[Thomas Zimmermann [:tzimmermann] [:tdz]]

This problem is caused by the init services network and sut. Sut could be fixed by installing a missing program.

The network service keeps on restarting constantly. A patch that fixes the init script has been pushed to https://github.com/tdz/android-device-panda/tree/bug-801651. Will be reviewed here.

Comment 3

[Thomas Zimmermann [:tzimmermann] [:tdz]]

Attachment: Cleanup network and sut initialization on PandaBoard

Malini,

even after installing sutagent, the network service constantly restarted. I made some changes and clean ups to the init script. Please review.

The Patch is also available at https://github.com/tdz/android-device-panda/commit/ff83f987419daa572e10fde25a4caac9c9da2e18.

--- Commit log ---

On the PandaBoard, the network and sut services were started by unconditionally running shell scripts during boot. The network script was restarted constantly, even though the network was already initialized.
    
This patch cleans up the initialization. The network service has been replaced by an equivalent service to initialize NIC eth0. Once the network is ready, sut gets (re-)started automatically.

Comment 4

[Thomas Zimmermann [:tzimmermann] [:tdz]]

Attachment: Cleanup network and sut initialization on PandaBoard

See my previous comment.

Comment 5

[Malini Das [:mdas] - Away, not checking bugmail]

Comment on attachment 673262 [details] [diff] [review]
Cleanup network and sut initialization on PandaBoard

Review of attachment 673262 [details] [diff] [review]:
-----------------------------------------------------------------

Sorry for the delay, I wanted to make sure this works locally. 

Thanks for doing this! I had a cleanup patch for some similar changes sitting around as a pull request, but I'll just close them since this is much better.

Comment 6

[Thomas Zimmermann [:tzimmermann] [:tdz]]

Thanks for doing the review. Meanwhile I got aware of [1], where the network.sh script seems used for configuring the NICs in very specific ways. I'll wait for the results of this issue before I send the patch upstream. I'll get back to you if I have to rework my changes.

[1] https://bugzilla.mozilla.org/show_bug.cgi?id=797629

Comment 7

[Thomas Zimmermann [:tzimmermann] [:tdz]]

Dave, you'll probably want this patch for your panda. Please have a look at

  https://github.com/mozilla-b2g/android-device-panda/pull/6

and pull it into master. Thanks!

Comment 8

[Dave Hylands [:dhylands]]

I don't seem to have write permission on the android-device-panda.

I've cc'd mwu to either give me permission, or merge it, or tell us why we shouldn't.

Comment 9

[Michael Wu [:mwu]]

It's merged.