Upgrade from FreeBSD 7.1/i386 to FreeBSD 7.1/AMD64?
rsmith at xs4all.nl
Mon Feb 23 14:31:19 PST 2009
On Mon, Feb 23, 2009 at 12:59:21PM -0800, Andrew Moran wrote:
> Thank you.
Please don't top post; it destroys the flow of the conversation.
> I have 8 gigs of memory in this system, and I decided go to the ZFS
> route, and am now getting kernel panics about kmem exhaustion. I know
> there are some tweaks I can do to help alleviate these, but I want to
> address all my memory before I increase the kernel memory.
Ah, OK. ZFS seems to work better on (and was written for) 64-bit systems
> I don't need the ports to be 64-bit, but they SHOULD run just fine
> without recompiling, yes?
As long as you don't ever recompile anything. Otherwise the shit will
hit the fan. The base system by default keeps two sets of system
libraries on amd64, 64-bit and 32-bit. (you can compile the system
without the 32-bit libs and kernel stuff if you don't need them; see
src.conf(5) and the COMPAT_IA32 option in the amd64 GENERIC kernel). So
the base system can run both kinds of binaries, as long as they only
depend on the base system libraries. But if you recompile any library
from ports, it will become 64-bit and unusable to 32-bit binaries. Every
program depending on that library will stop working. Just recompile your
ports and save yourself a world of grief in the long run.
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