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Old 5th April 2011
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rocket357 rocket357 is offline
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Default BIGMEM default set to "on" for amd64

In case you haven't been following the tech@ list...BIGMEM is now on by default in the amd64 April 4th snapshot:

Code:
OpenBSD 4.9-current (GENERIC.MP) #865: Mon Apr  4 13:03:14 MDT 2011
    deraadt@amd64.openbsd.org:/usr/src/sys/arch/amd64/compile/GENERIC.MP
real mem = 137428045824 (131061MB)
avail mem = 133755703296 (127559MB)
mainbus0 at root
bios0 at mainbus0: SMBIOS rev. 2.6 @ 0xdf79c000 (103 entries)
bios0: vendor Dell Inc. version "1.1.9" date 05/21/2010
bios0: Dell Inc. PowerEdge R715
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Old 6th April 2011
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For those wondering if these changes to BIGMEM will be available in May when OpenBSD 4.9-release is scheduled to be released, the answer is "no".

This work is being done in -current which will eventually become OpenBSD 5.0-release slated for release in November 2011. The code base for OpenBSD 4.9-release was frozen mid-February 2011.
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Old 6th April 2011
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It's also possible that the change could get reverted at the last moment, before 5.0 is tagged in CVS.

Hopefully that won't happen.
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Old 6th April 2011
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Quote:
Originally Posted by BSDfan666 View Post
It's also possible that the change could get reverted at the last moment, before 5.0 is tagged in CVS.
Very good point.

As mentioned in the discussion cited by rocket357, enabling BIGMEM now is done hoping that the major bugs will be caught during this development cycle. If not, the code will likely remain in 5.0, but in a disabled state. Definitive decisions will be made towards the end of the development period.

For those who would like/want BIGMEM to remain, install -current & report any problems found. Reporting problems is crucial.
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Old 6th April 2011
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Quote:
Originally Posted by BSDfan666 View Post
the change could get reverted at the last moment, before 5.0 is tagged in CVS.
That's an extremely good point, and one that begs for everyone to test BIGMEM on amd64 and turn in as many problem reports (good, solid bug reports) as possible.

Thanks for pointing this out, BSDfan666.
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