Arch Linux

j@s0n

Member

Registered: 2020-08-15

Posts: 58

Kernel panic or system freeze with Apple Trackpad 2

Over the past month or so, I've been experiencing random lock ups where my machine will not respond. I couldn't even ssh into it. Then more recently, it began kernel panicking on start. I narrowed it down to having my Apple trackpad 2 connected. The kernel will not start with the trackpad connected, and if I connect it after booting, the machine will lock up in under a minute. Without it connected, the machine will start properly and run for days.
Is there a good way to debug this to see what's going on? I added a kernel parameter to scroll the panic output, but didn't find anything useful. I also don't see anything in /var/log that is helpful.

Here is my kernel version history from the pacman log:
2020-08-07T01:45:27+0000] [ALPM] installed linux (5.7.12.arch1-1)
[2020-08-07T01:48:46+0000] [ALPM] reinstalled linux (5.7.12.arch1-1)
[2020-09-11T21:48:30-0700] [ALPM] upgraded linux (5.7.12.arch1-1 -> 5.8.8.arch1-1)
[2020-09-16T22:13:45-0700] [ALPM] upgraded linux (5.8.8.arch1-1 -> 5.8.9.arch2-1)
[2020-10-07T20:20:43-0700] [ALPM] upgraded linux (5.8.9.arch2-1 -> 5.8.13.arch1-1)
[2020-10-17T22:09:20-0700] [ALPM] upgraded linux (5.8.13.arch1-1 -> 5.9.1.arch1-1)

Mid September sounds about right for the beginning of the problem, so I thought it might be related to the 5.8.x kernel. I updated to 5.9.1 today, and it's still happening. I'm tempted to downgrade to the 5.7.12 kernel, or switch to the LTS kernel, but that doesn't really solve the problem, just avoids it.

Khere

Member

From: Italy

Registered: 2020-03-04

Posts: 170

Re: Kernel panic or system freeze with Apple Trackpad 2

Post the output of

journalctl -b 

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Fan of Giorgio Moroder & Mohammad Ammax enemy

j@s0n

Member

Registered: 2020-08-15

Posts: 58

Re: Kernel panic or system freeze with Apple Trackpad 2

Here's the output. I started the system, got the panic, then restarted without the touchpad connected.

https://pastebin.com/9w3cDEyN