I have noticed since Manjaro KDE 20.1 with Broadcom BCM4313 802.11bgn Wireless Network Adapter, the kernel panics shortly after I connect to a wireless LAN. I’ve been using Manjaro on the same machine for several years on various versions. I have spent some time investigating this today and found that it happens every time from 20.1 KDE onwards, but not 20.0 KDE.
I have never experienced problems with this system for several years, while running 17.1.11 KDE and 18.0 KDE. No hangs or crashes at all.
I’m posting this to bring others’ attention to it more than anything and highlight it. I’m aware that there were other reports of kernel crashes in 2018 for Broadcom BCM4313 under Arch https://bbs.archlinux.org/viewtopic.php?id=258428 and others for a slightly different Broadcom model for Manjaro, also in 2018. Since 20.0 works fine, perhaps it has been resolved but then broken again.
Apologies for not including the panic message - it won’t allow an image to be uploaded, or even a link to it.