KVA space problems?

Dag-Erling Smørgrav des at des.no
Thu May 27 03:33:03 PDT 2004

"lost inferno" <bjohns123 at hotmail.com> writes:
> I posted something to stable about this,  but Im wondering if anyone
> has seen this...  I saw something over here (
> http://gobsd.com/node/view/39 ) that made me really consider my
> options as the 4.x series comes to an end... is anyone else looking
> into this?  Perhaps i would be best off to move over to this DragonFly
> thing and see what it's about.

First of all, you need to realize that GoBSD is a DragonFly advocacy
site.  That doesn't necessarily make it a bad site, but it does mean
it's biased.

Second, the FreeBSD 4 kernel is not reentrant, even on SMP systems, so
as far as I know, the bug described in that article Can't Happen[tm].
I haven't investigated this closely, however, so I may be wrong; but
I'm pretty sure that if there really was a serious problem there, Matt
would have let us know.  He usually does.

Finally, David's claim that we have not "been doing much of anything
over the past few years" is simply untrue; he should take a look at
-CURRENT, which actually "moved away from this memory allocation
method" about a year and a half before DragonFlyBSD got off the

Dag-Erling Smørgrav - des at des.no

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