On Thu, 14 Mar 2019 18:16:32 +0000 Peter Robinson pbrobinson@gmail.com wrote:
Just tested with Kernel 5.0.1-300.fc29.armv7hl, same problem, out of 3 reboots one did not manage to initialise network.
So one of the patches I referenced above, "usb: dwc3: exynos: Fix error handling of clk_prepare_enable" is in 5.0 and just landed in 4.20.16, the other problem is basically summarised in the following post
https://www.spinics.net/lists/linux-usb/msg177861.html
But should be mitigatable with "rd.driver.pre=xhci-plat-hcd "
Sadly not, I boot with rd.driver.pre=ledtrig-heartbeat,xhci-plat-hcd (because I want the 5000M mode).
One thing to note, since my initial testing I've switched from the HK power bricks to HK's ODROID power cable wired to a single 12V/20A bench supply. https://blog.pcfe.net/hugo/posts/2019-03-05-odroid-hc2-ceph-cluster/#notes-o...
While I'm confident in the power setup up to the HK power cable itself and have measured voltage under load up to the power distributors, I have not measured yet on the PCB, my current voltmeter leads are a tad too. The HK power cable seems a wee bit too much on the thin side for my taste.
If you want I can re-test 5.0.1-300.fc29.armv7hl with one of HK's power bricks.
In case you want it, I've dumped the console log at https://blog.pcfe.net/tmp/ once as generated by conserver(8), and once after running through strings(1) as I found the control codes annoying when trying to view in a browser ;-)
Until I lost network connectivity, I triggered the reboots by ssh-ing in.
lines 0020 to 0220 is the shutdown of the first systemctl reboot via ssh lines 0221 to 1348 is the system coming up fine and going down after I triggered again a clean reboot lines 1349 to 2462 same again
At line 2464 the boot where I had no network starts. At line 3174 of that boot I get the first Timeout while waiting for setup device command
At line 3459 I trigger a clean reboot via serial
lines 3487 to 4446 the system boots but again the USB network fails to init.
lines 4464 to end is a boot triggerd via watchdog, not helping either.
As before removing power fixed the issue.
Anything else I can test for you?
pcfe