Hi, I wanted to provide an update to the mailing list as this bug appears to be getting more interesting.
There's one other confirmed case of a different Thinkpad T400 with this same issue, and kern.smp.disabled=1 allowing it to boot. There's also a completely different piece of hardware, a Jingsha B85M-I which won't boot on 14.2-RELEASE without disabling SMP: https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=284275 (Maybe related, maybe not?) Also, further testing has found that disabling SMP can cause issues with i915_kms and possibly more: https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=286018 Here's the original bug report about the T400 so you don't have to dig too far, if you are curious: https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=285867 Would appreciate any help you can offer. Something must have broken between 14.1 and 14.2 that only manifests on certain hardware. Thank you! -Henrich
