On Fri, Apr 25, 2003 at 02:46:26PM -0700, Terry Lambert wrote: > John Baldwin wrote: > > > Yes, figured this out by myself already. I've ended up > > > uncommenting the "hints" line in GENERIC config, everything > > > is OK now, and bzip2(1) also works, modulo the memory > > > restrictions -- only level 1 bzipping works that requires > > > ~250K of memory. > > > > > > John, is there a way to fix btx/loader/whatever so that > > > heap memory is not limited to 640K? > > > > Not really. At least, not easily. We load the kernel up above 1mb, > > but we don't know how much memory lives up above 1mb and we assume > > that there is enough for the kernel and that's it. > > You are limited to what you can access in real mode, without > Gate A20 (16M, at which point the address space wraps). > Shhh, don't tell this anyone! ;-) A20 (21th address line) allows one to access up to ffff:ffff byte, that is (1M + 64K - 16) bytes of memory. Cheers, -- Ruslan Ermilov Sysadmin and DBA, ru_at_sunbay.com Sunbay Software AG, ru_at_FreeBSD.org FreeBSD committer, +380.652.512.251 Simferopol, Ukraine http://www.FreeBSD.org The Power To Serve http://www.oracle.com Enabling The Information Age
This archive was generated by hypermail 2.4.0 : Wed May 19 2021 - 11:37:05 UTC