Bug 4344

Summary:	BSPs live boot regularly hangs
Product:	[Build System, Metadata & Runtime] OE-Core	Reporter:	Stoicescu Cornel <corneliux.stoicescu>
Component:	deployment	Assignee:	Lucian Musat <georgex.l.musat>
Status:	RESOLVED OBSOLETE	QA Contact:
Severity:	normal
Priority:	Medium	CC:	dvhart, richard.purdie, yp.bsp.watcher, yp.watcher
Version:	1.4
Target Milestone:	1.8
Hardware:	x86
OS:	Multiple
Whiteboard:
OS type for building Yocto:	---	Type of Regression:	---
Verified:		Documentation change:	No (bug/feature does not impact docs)
Bug Depends on:	4103
Bug Blocks:

Description Stoicescu Cornel 2013-04-18 14:46:09 UTC

1) copy a BSP image on a USB stick with dd (ex: core-image-lsb-sdk-jasperforest)
2) live boot from USB

Notice regular hangs on usage. These hangs seem to be I/O related.

Some usual hangs:
-immediately after login prompt, insert incorrect user. Notice a 2-3 minutes system hang
-issue "find / | grep if". Notice system hangs at some point during the search and resumes after a long time
-conduct test cases like:
https://bugzilla.yoctoproject.org/tr_show_case.cgi?case_id=207
https://bugzilla.yoctoproject.org/tr_show_case.cgi?case_id=205

I believe there was a bug/discussion on this in the past and it was blamed on poor USB read/write performance. The USB stick this was tested on has 20 Mb/s write 70 Mb/s read so I believe it has decent performance.

Please note that I had same issues with recent sugarbay sato-sdk images and with n450 in the past(we don't have that BSP for testing here anymore). It seems to be an overall live boot issue.

Comment 1 Darren Hart 2013-04-18 15:31:47 UTC

I've only heard of these kinds of issues with very large live images, like lsb-sdk. I believe it is related to too little RAM. If these continue to be reported we may have to make some sort of explicit test during init.

Comment 2 Stoicescu Cornel 2014-02-17 13:39:57 UTC

This is still an issue on less powerfull platforms like MinnowBoard and AtomPC(tested with genericx86 image).

Comment 3 Darren Hart 2014-02-18 18:46:08 UTC

Also on lsb-sdk?

Comment 4 Stoicescu Cornel 2014-04-01 14:12:51 UTC

Need to test this on lsb this week.

Comment 5 Stoicescu Cornel 2014-04-16 07:56:13 UTC

I tested Minnowboard with a lsb-sdk image and it did not hang at all.

Comment 6 Richard Purdie 2014-11-06 16:27:35 UTC

It seems most boards are working except jasperforest. Assigning to Lucian to help provide more info.

Comment 7 Lucian Musat 2014-12-17 12:20:05 UTC

Had some trouble in the past with the jasperforest but it turns out to be because it is just a little more picky with the USB drives. 
The other images are tested regularly for live boot and there is no issue as far as I know.
I think we can close this, and if there will be problems in the future open another one.

Comment 8 Lucian Musat 2015-04-29 08:27:12 UTC

Closing this.