a creative, intelligent
creature, doesn't it? ;)
Pat.
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Patryk ZadarnowskiUniversity of New South Wales
[EMAIL PROTECTED] School of Computer Science and E
be
stripped from freebsd-hackers mail. I believe it is still a very good idea,
and patches tend to be posted as text anyway.
Pat.
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Patryk ZadarnowskiUniversity of New South Wales
[EMAIL PROTECTED
s: they're quiet.
4. get used to the noise.
I have three computers running 24/7 in my bedroom, and after some swapping
of power supplies, the noise is perfectly bearable.
Pat.
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Patryk Z
On Sun, 17 Dec 2000, Tony Finch [EMAIL PROTECTED] wrote:
Patryk Zadarnowski [EMAIL PROTECTED] wrote:
Now that I think of it, there aren't many commercial microkernel
systems out there with the possible exception of QNX and lots of
little embedded toys.
Mac OS X is based on Mach.
Oh
ly another reasonably-well structured kernel. With 300+ system
calls in the nucleus, the NT kernel handles just about everything
except for major GUI tasks.
Pat.
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Patryk ZadarnowskiUniversity of New S
if
I'm wrong.)
Pat.
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Patryk ZadarnowskiUniversity of New South Wales
[EMAIL PROTECTED] School of Computer Science and Engineering
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explain me why such approach is not taken by FreeBSD?
Yes. FreeBSD is based on the BSD monolithic kernel. It's precisely the
``other camp'' to the u-kernel guys (like myself.) Hence the ``BSD''
in its name. ;)
Pat.
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ge doesn't deserve standarising, I don't
know what does.
Pat.
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Patryk ZadarnowskiUniversity of New South Wales
[EMAIL PROTECTED]
I will use it. Currently, if you have a group of ISO
8859-2 users on the system , the ISO 8859-1 people see them as
meaningless junk. I don't even want to think about something like
Arabic.
Pat.
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Patryk Z
/. Hope it's of
some help.
Pat.
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Patryk ZadarnowskiUniversity of New South Wales
[EMAIL PROTECTED] School of Computer Science and Engineering
uncompressed iso images. 99.99% of those who'd
benefit from the compression would never consider downloading them
anyway, and 99.99% of those who are going to use these images will
find .gz a pain.
Pat.
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Patryk Zadarnowski
tion?
Pat.
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Patryk Zadarnowski [EMAIL PROTECTED] University of New South Wales
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To Unsubscribe: send mail to [EMAIL PROTECTED]
with "unsubscribe freebsd-hackers" in the body of the message
On Sun, 20 Feb 2000, Patryk Zadarnowski wrote:
On Sun, Feb 20, 2000 at 12:42:14PM +1100, Patryk Zadarnowski wrote:
One more thing about GPTs (I thought I'll leave that till last. ;)
Jochen Liedtke holds a German patent on them, although he will
probably be fairly easily
:Kevin Elphinstone did a PhD thesis on TLB structures for 64 bit address spaces
:and it turns out that hash tables perform quite poorly. I'd suggest GPTs
:instead, or maybe LPCtrie that Chris Szmajda has been working on here at UNSW.
:Both have the advantage of supporting multiple page sizes
On Sun, Feb 20, 2000 at 01:48:49PM +1100, Patryk Zadarnowski wrote:
It looks like the hardware has to implement GPTs and know how to
walk them. How can FreeBSD use them without hardware support ?
No it doesn't. We've got software GPT implementations for both MIPS64 and
Alpha
You're being just plain silly. It takes about 5 minutes with the
manuals to realize just how little AXP and IA-64 have in common: one
is a classic superscalar out-of-order design, the other is just about
the opposite: a typical explicit-ILP architecture. What makes IA-64
great is the
:...
:and Linux essentially treats hardware page tables as TLBs.
:
:The problem with the above approach is duplication of information between
:Linux page tables and hardware page tables and inefficient use of memory
:for page tables.
:
:I think OSes like FreeBSD which don't have a concept
Just read this article:
http://www.zdnet.com/zdnn/stories/news/0,4586,2440002,00.html
Which leads to my potentially ignorant question: Where is FreeBSD
w/regards to running on the Itanium (or other 64bit chips)?
Considering the fact that Intel released the IA-64 OS info only on the
Patryk Zadarnowski wrote:
FreeBSD when that happens. In the meantime, the only alternative would be to
convince Intel to give someone their IA-64 SimOS, but there's an extermely
slim chance of that happening (from talking to someone on the IA-64 team.)
An alternative to IA-64
Which leads to my potentially ignorant question: Where is FreeBSD
w/regards to running on the Itanium (or other 64bit chips)?
Waiting for somebody at Intel to give us either hardware or simulator
time. Without either of those things, "working on" Itanium support
is a pretty
"I could have had a PA-8600!"? Today, and not at some vague point in the
future?
That sort-of misses the point, as I'm taking a research OS perspective, where
IA-64 is trully unique in terms of versitality and a well thought-through
design (especially when it comes to SASOS support!)
What can one say to that, apart from "I have one right here and it works
just fine" - not something you can say about the IA-64. 8)
I'll just reach down and pat my trusty pair of manufactured-in-1993 Alpha
3000's on their heads... :)
Oh, forgot... It's not new until Intel does
Recently I was tasked to find a way to scale up our MYSQL server, running
MYSQL3.22.15 on FreeBSD3.3. I've been testing a hardware RAID solution,
and found that with 6 disks in a RAID5 configuration, the system was only
perhaps 30% faster than when running on a single disk. [The 6 disks in
Hi,
is there any alternative (non-commercial) C compiler to use, or is gcc the
best?
I have just upgraded my system to -current w/egcs 2.95.2 and I have
several problems with it, especially when using optimizations (-O2 and
such)
ok I know there's the good old gcc 2.7.2.3 but a good
On Wed, 5 Jan 2000, Patryk Zadarnowski wrote:
Hi,
is there any alternative (non-commercial) C compiler to use, or is gcc the
best?
I have just upgraded my system to -current w/egcs 2.95.2 and I have
several problems with it, especially when using optimizations (-O2
In the last episode (Oct 29), Lars Gerhard Kuehl said:
Think about it for a second. How big is a pointer?
The Intel architecture still supports segmented memory,
so the effective maximum pointer size is 48 bit.
The extra 16 bits of the segment don't actually contribute to the
address
On Sat, 25 Sep 1999, Chris Costello wrote:
Aah! No! I tried that with GNOME once and it drove me insane
for about two weeks.
Auto-upgrades on ports would be _very_ _very_ bad, especially
for those using apache from ports!
that's right. i thought about having some kind of
I'm looking at cleaning up a few compile nits and I'm wondering what the
officially approved way of silencing "may not be used" warnings:
int
foo(int flag)
{
int j;
if (flag)
j = 1;
/*
* This noop statement is enough to confuse
I'm looking at cleaning up a few compile nits and I'm wondering what the
officially approved way of silencing may not be used warnings:
int
foo(int flag)
{
int j;
if (flag)
j = 1;
/*
* This noop statement is enough to confuse the
On Fri, Aug 27, 1999 at 08:45:31PM -0400, Sergey Babkin wrote:
Thomas David Rivers wrote:
Microsoft needs a "business quality" version of Windows,
which it claims is Windows/2000. That version of Windows
could benefit from a 64-bit port, if for marketing only; but
I don't
On Fri, Aug 27, 1999 at 08:45:31PM -0400, Sergey Babkin wrote:
Thomas David Rivers wrote:
Microsoft needs a business quality version of Windows,
which it claims is Windows/2000. That version of Windows
could benefit from a 64-bit port, if for marketing only; but
I don't
Does anyone know an inexpensive algorithm (O(1)) to go from an number to
the next (lower or higher) power of two.
1 - 1
2,3 - 2
4,5,6,7 - 4
8,9,10,11,12,13,14,15 - 8
etc.
So %1101 should become either %1 or %1000.
The
Does anyone know an inexpensive algorithm (O(1)) to go from an number to
the next (lower or higher) power of two.
1 - 1
2,3 - 2
4,5,6,7 - 4
8,9,10,11,12,13,14,15 - 8
etc.
So %1101 should become either %1 or %1000.
The
In message pine.bsf.4.10.9908070138180.9444-100...@janus.syracuse.net
Brian F. Feldman writes:
: You can always use off_t with %qd, (int64_t)foo.
But that isn't portbale. %qd is a bsdism. %lld and %llu are the
latest C standards way to say that.
If you're that fixed on portability,
In message [EMAIL PROTECTED] "Brian F.
Feldman" writes:
: You can always use off_t with "%qd", (int64_t)foo.
But that isn't portbale. %qd is a bsdism. %lld and %llu are the
latest C standards way to say that.
If you're that fixed on portability, "%lux%08ulx", (long)foo32,
(long)foo
At 9:52 PM -0700 7/15/99, Matthew Dillon wrote:
: ... How many programmers bother to even *clear* errno before
: making these calls (since some system calls do not set errno
:
: if it already non-zero). Virtually
[EMAIL PROTECTED] (Julian Elischer) writes:
we already use the gs register for SMP now..
what about the fs register?
I vaguely remember that the different segments could be used to achieve
this (%fs points to user space or something)
You can't extend the address space that way,
jul...@whistle.com (Julian Elischer) writes:
we already use the gs register for SMP now..
what about the fs register?
I vaguely remember that the different segments could be used to achieve
this (%fs points to user space or something)
You can't extend the address space that way,
Why not put the kernel in a different address space? IIRC there's no
absolute requirement for the kernel and userland to be in the same
address space, and that way we would have 4 GB for each.
Wouldn't that make system calls that need to share data between kernel
and user spaces hopelessly
we already use the gs register for SMP now..
what about the fs register?
I vaguely remember that the different segments could be used to achieve
this (%fs points to user space or something)
... as I've suggested a few days ago, and was told to shut up with a (rather
irrelevant) reference
I've got some prototype code in place which supports the context
switching part of this. It's pretty simple right now, as I'm trying
to keep changes to a minimum.
What I've done is simply added the dr0-dr3,dr6,dr7 registers to
'struct pcb' in /usr/src/sys/i386/include/pcb.h. In
I know about envp.
What I want to know is the exact position of these variables on the stack.
and if anywhere I can find some data, on the exact compisoition of the
stcak, then it will be very helpful.
references of books and websites wil be most helpful.
Basically, i386 BSD kernels
I wanted t know where the environment strings i bsd were stored after a
program execs another one.
extern char **environ;
At the top of memory. You can access them by the standard (but
undocumented) method:
int main (int argc, char *argv [], char *envp [])
envp is a pointer to the
This is of course correct except for the `undocumented' claim. The
`envp' has been documented as the third argument to main() since the
Pharaons (well, not quite ;). Apparently ATT UNIX even has a
(documented) five-parameter main().
This is news to me. Can you point to the
I know about envp.
What I want to know is the exact position of these variables on the stack.
and if anywhere I can find some data, on the exact compisoition of the
stcak, then it will be very helpful.
references of books and websites wil be most helpful.
Basically, i386 BSD kernels
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