On 10 September 2014 15:00, Jean-Sébastien Pédron <dumbbell_at_freebsd.org> wrote: > Hello! > > I tried the following FreeBSD snapshot on my Clevo W860CU with UEFI > enabled: > FreeBSD-11.0-CURRENT-amd64-20140903-r270990-memstick.img Thanks for trying it out. > The boot fails early with the following error: > panic: BIOS smap did not include a basemem segment! This panic means the memory map does not include usable memory (for the kernel) with physaddr 0. if (physmap[i] == 0x00000000) { basemem = physmap[i + 1] / 1024; basemem == 0 produces the panic. The requirement for a usable memory range with physaddr 0 doesn't hold for UEFI, and the md startup hasn't yet been reworked to accommodate that. > Here's a video of a verbose boot (the quality is really low, I can try > to redo it if this one doesn't help): > http://www.dumbbell.fr/~dumbbell/FreeBSD-Clevo-W860CU-UEFI-no-basemem-segment.mov Pausing the video immediately after the kernel starts confirms this: the UEFI firmware has RuntimeServicesData at physaddr 0, so not available for kernel use. Do you mind submitting a PR to keep track of this issue?Received on Thu Sep 11 2014 - 12:12:58 UTC
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