Instability move 4.1-2.0.x-imx -> 4.9-2.3.x-imx

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Instability move 4.1-2.0.x-imx -> 4.9-2.3.x-imx

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woutervh
Contributor IV

Hello,

On our custom imx6-board, we are moving from kernel branch 4.1-2.0.x-imx to 4.9-2.3.x-imx. Using yocto warrior.

However, we seem to encounter some instability issues. Most of the boots, it's just stuck at starting sshd and generating the rsa-key.

Starting OpenBSD Secure Shell server: sshd
generating ssh RSA host key...

Sometimes followed by:

fec 2188000.ethernet eth0: Link is Up - 100Mbps/Full - flow control off

Sometimes it boots up completely, but can hang in unexpected ways. Doing a simple 'ls' in an ssh-session can make it hang. However, I'd still be able to initiate a few other ssh-sessions untill ssh becomes completely unresponsive. Then the board is still reachable over the network using ping. Also, it's still outputting on the serial port. Maybe on a sidenote, but I don't have a prompt on the serial port? And following output pops up (even after ssh getting stuck):

INIT: Id "mxc0" respawning too fast: disabled for 5 minutes
INIT: Id "mxc0" respawning too fast: disabled for 5 minutes
INIT: Id "mxc0" respawning too fast: disabled for 5 minutes

Also led's are still functional and watchdog is not kicking in, so...

I have this using our custom defconfig, as with the imx_v7_defconfig. Devicetree itself hasn't really changed (besides adding an always-on to a regulator) Also uboot is still the same.

Can somebody give a hint what can be the issue here?

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joanxie
NXP TechSupport
NXP TechSupport

4.9-2.3 isn't official released version, we haven't tested it on the imx6 boards, try to use 4.9.88 or latest version 4.19.35

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woutervh
Contributor IV

4.9.88 corresponds to which branch then?

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joanxie
NXP TechSupport
NXP TechSupport

branch named imx-linux-rocko, if you build, you can use the command as below:

"repo init -u https://source.codeaurora.org/external/imx/imx-manifest -b imx-linux-rocko -
m imx-4.9.88-2.0.0_ga.xml"

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