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slim2k
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Joined: 22 Dec 2017
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PostPosted: Fri Dec 29, 2017 2:59 pm    Post subject: Network problem crashes kernel Reply with quote

Upon running `lxd init` I found I needed some additional kernel options to support network bridging. I don't recall the specific ones, but they were recommended to me in the last step of `lxd init` when I said yes to "Would you like to create a new network bridge?" ..

Now, I can only boot when I unplug my USB Ethernet adapter. The kernel crashes shortly after plugging it in with a long stack trace that exceeds the console's height. I can not access any other tty when that happens. There is no X desktop on here yet..

I'm not sure how to debug this. How best can I proceed from here given that I need both LXC and the USB Network adapter?


.config => https://pastebin.com/i2e1ivdT
/var/log/message => https://pastebin.com/ZFadpCF9
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slim2k
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PostPosted: Fri Dec 29, 2017 4:16 pm    Post subject: Reply with quote

Actually, this is unrelated (shows up even if I don't plug in the usb ethernet)

/var/log/message => https://pastebin.com/ZFadpCF9
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slim2k
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PostPosted: Fri Dec 29, 2017 4:29 pm    Post subject: Reply with quote

This does not appear in /var/log/messages .. this is everything I can see.

Some sort of semaphore page fault. This is a hardened SELinux kernel.

https://steemitimages.com/DQmfKmPdYAwipq8kzDoVRd4CoWpnrMzBUTxTGUsTGkAxoug/IMG_20171229_102110.jpg
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slim2k
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PostPosted: Fri Dec 29, 2017 10:04 pm    Post subject: Reply with quote

This is the USB Ethernet device causing the crash:
> Bus 002 Device 025: ID 0b95:1790 ASIX Electronics Corp. AX88179 Gigabit Ethernet

The brand name is: HooToo

I swapped it out with a simple non-hub ASIX USB Gigabit Ethernet adapter and it did not crash..
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Hu
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PostPosted: Sat Dec 30, 2017 12:05 am    Post subject: Reply with quote

The backtrace is due to a kernel panic. You have hit a kernel bug, likely in code specific to the USB Ethernet dongle. Please try a newer kernel, as 4.12.x is no longer supported upstream.
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