On 01/28/2018 10:05, Dimitry Andric wrote: > On 28 Jan 2018, at 15:57, Andre Albsmeier <andre.albsme...@siemens.com> wrote: >> I have a lot of machines running with 4 GB physical RAM and, for >> some reasons, I still have to use a 32 bits OS. >> >> All of them show something between 3 and 3.5 GB of RAM available >> in dmesg but the brand new Supermicro A2SAV really shocked me: >> >> FreeBSD 11.1-STABLE #0: Mon Jan 15 06:57:10 CET 2018 >> ... >> real memory = 4294967296 (4096 MB) >> avail memory = 1939558400 (1849 MB) >> ... >> >> So do people have any ideas how I might get a bit closer to at least >> 3 GB? I assume there are no FreeBSD knobs which might help but hope >> dies last... > > This is a common problem on i386. Most likely some ranges are reserved > for I/O mappings, such as video cards. If you boot with -v, I think the > kernel prints an overview of the physical ram chunks available? I don't > know of any other way to get such an overview.
sysctl machdep.smap on BIOS, machdep.efi_map on UEFI. Eric _______________________________________________ freebsd-stable@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to "freebsd-stable-unsubscr...@freebsd.org"
