https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=267187
Bug ID: 267187
Summary: System freeze on a T490 laptop
Product: Base System
Version: 13.1-RELEASE
Hardware: amd64
OS: Any
Status: New
Severity: Affects Only Me
Priority: ---
Component: kern
Assignee: [email protected]
Reporter: [email protected]
Some time ago I tried to migrate my laptop to FreeBSD. I've managed to install
13.0 and everything seemed to be fine, but then I started having these complete
system freezes. Since I was running X, I wasn't seeing anything on the console.
I didn't had too much time to investigate (and learn!), so I had to abort the
migration.
Today I tried to repeat the experiment with 13.1, on a Lenovo 13.1. The system
freeze happened again while doing the installation:
* I was configuring networking
* iwm(4) scan didn't returned any wireless networks
* plugged an ethernet cable to try to use the em(4) driver...
* the system stopped responding, the laptop started to get hotter and the fans
started
I had to hard-reboot, of course.
My question: I do I debug this? If I had to guess, it it's a network driver
bug, either iwm(4) or em(4), but how can I get more info when this happens? I
plan to try to re-install again without using the iwm(4) driver.
Another detail (probably irrelevant): I'm installing with encrypted
root-on-zfs.
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