On 10/19/2011 15:58, Remko Lodder wrote:
Hello Kes,
Thank you for responding to my closure. Sadly the PR list should
contain only
Problem REcords (PR's) so personally I do not think a wish list item
should be
kept open.
Though, we might want to ask Alan whether this is something we can and
will work
at or not. If the latter, well it's a pity but then we won't work on it.
Kes,
Your problem report doesn't include any details on the panic that
occurs. Could you please provide this?
Is this problem occurring with or without the use of PAE? If I presume
that you are not using PAE, then setting KVA_PAGES to 512 makes the
kernel address space 2 GB in size.
Have you ever tried a slightly smaller setting for KVA_PAGES, for
example, 508?
Remko,
I suspect this a bug, specifically, arithmetic overflow is occurring
somewhere because 32-bit arithmetic is being used and the kernel address
space is 2^31 bytes in size.
I would recommend that you reopen this PR, and assign it to me. While
you can certainly shoot yourself in the foot by messing with low-level
configuration, like KVA_PAGES, in this case, I think we may have a bug.
Alan
On Oct 19, 2011, at 8:55 PM, Коньков Евгений wrote:
rFo> Synopsis: [boot] compiling kernel with KVA_PAGES=512 does not
allow system to boot
rFo> State-Changed-From-To: open->closed
rFo> State-Changed-By: remko
rFo> State-Changed-When: Tue Oct 18 18:27:15 UTC 2011
rFo> State-Changed-Why:
rFo> If you fiddle with kernel settings you should be aware of what
you are
rFo> doing. The KVA pages is a problem that popped up before and is
mentioned
rFo> enough. I do not think this is a PR worth, apologies if this offends
rFo> you.
rFo> http://www.freebsd.org/cgi/query-pr.cgi?pr=161721
This is option to make FreeBSD better, so may be some developer in
future see this weakness and implements that.
If it will be closes it will be fogotten
So may be reopen it with very low priority as wish list, not PR
Thank you
--
С уважением,
Коньков mailto:kes-...@yandex.ru
--
/"\ With kind regards,| re...@elvandar.org <mailto:re...@elvandar.org>
\ / Remko Lodder| re...@freebsd.org <mailto:re...@freebsd.org>
X FreeBSD| http://www.evilcoder.org
/ \ The Power to Serve| Quis custodiet ipsos custodes
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