> On Jan 24, 2024, at 8:47 AM, void <v...@f-m.fm> wrote: > > Hello, > > Loading vmm either via vmm_load=YES in /boot/loader.conf or > manually via kldload vmm crashes the system to db> prompt > as shown in the link below: > > http://void.f-m.fm.user.fm/Screenshot_20240122_135539.png > > Thing is, access is via a html5 console with no up/down scrolling > or buffer. Nothing can be entered into the db> prompt. There's plenty > more information when it crashes, but the output scrolls off the top. > > The main-n267684 is running a modified GENERIC-NODEBUG > kernel and has debugging turned off in /etc/src.conf > (it has WITHOUT_ASSERT_DEBUG= and WITHOUT_DEBUG_FILES= and > WITH_MALLOC_PRODUCTION=) > > Apart from turning these on again and rebuilding GENERIC, what other things > need to be set to get a usable coredump when this happens?
You may want to configure the dump device before get the coredump. See https://docs.freebsd.org/en/books/developers-handbook/kerneldebug/#kerneldebug-obtain <https://docs.freebsd.org/en/books/developers-handbook/kerneldebug/#kerneldebug-obtain> . > > /var/crash has nothing in it. > > thanks in advance for any assistance > -- > Best regards, Zhenlei
