From: thefly [mailto:[EMAIL PROTECTED]
Hello everybody, i'm writing a netgraph module to get some stats about
the network traffic. Actually i have to pass all the data gathered all
in one piece, to the process which asks me for it. The client should
work like this in userland:
int *
From: Ed Maste [mailto:[EMAIL PROTECTED]
A bit offtopic - what traffic generator you use ?
It's an in-house project somewhat similar to Emulab
www.emulab.net. The traffic itself is generated by a
small number of FreeBSD boxes.
It is 'ng_source', which we've contributed back
to the tree.
From: Gary Corcoran [mailto:[EMAIL PROTECTED]
Quick background:
I'm running FreeBSD 4.8-Release and have a new Intel Pro/1000 MT
NIC I want to install. While there is a man page for the em
driver which should be usable, there is no em listed in LINT
or GENERIC. Nor is the source code for
From: Doug Ambrisko [mailto:[EMAIL PROTECTED]
Scott Long writes:
| In reading the code, it appears that it is indeed an ICHx
service and
| not limited to just i8xx chipsets. I have a few issues with how the
| probe and attach are done, and I'm addressing these in a
private mail
| right
From: Doug Ambrisko [mailto:[EMAIL PROTECTED]
Don Bowman writes:
| The Intel ICH3 (and probably all) has the feature it can
| issue an SMI on first count-down to 0, then a hard reset
| on 2nd. What we did was implement an SMM handler (in bios)
| that, when called due to watchdog, issued
From: Garance A Drosihn [mailto:[EMAIL PROTECTED]
At 2:52 PM -0800 3/21/04, Kip Macy wrote:
The heuristics vary from platform to platform - what does
objdump -d show?
Based on what I see from that, the 'ps.o' which has the extra
strcmp is about 40 bytes larger than the one without it. And
From: Garance A Drosihn [mailto:[EMAIL PROTECTED]
At 7:35 PM -0500 3/21/04, Don Bowman wrote:
From: Garance A Drosihn [mailto:[EMAIL PROTECTED]
So maybe this has something to do with how linking is done
for ELF modules. Unfortunately, I need to be concentrating
on something else
From: Mike Silbersack [mailto:[EMAIL PROTECTED]
On Sat, 28 Feb 2004, Don Bowman wrote:
You could use ipfw to limit the damage of a syn flood, e.g.
a keep-state rule with a limit of ~2-5 per source IP, lower the
timeouts, increase the hash buckets in ipfw, etc. This would
use a mask
From: Deepak Jain [mailto:[EMAIL PROTECTED]
As a part of tracking down a performance issue, I tried building a
custom kernel (with just IPFW, DUMMYNET added, NMBCLUSTERS,
commenting
out MATH_EMULATE, INET6, I386, I486). The system is currently
running a
kernel from a similar machine
From: Deepak Jain [mailto:[EMAIL PROTECTED]
Just a guess, but i think you've bumped nmbclusters or nmbufs up
too much (or perhaps maxsockets, maxfds, ...) and have run out of
KVA.
You can tune clusters mbufs in loader.conf without recompiling
kernel. You will want to see what
From: Mike Tancsa [mailto:[EMAIL PROTECTED]
On Sat, 28 Feb 2004 23:17:44 -0500, in sentex.lists.freebsd.hackers
If you want to spend more time in kernel, perhaps change
I might have HZ @ 2500 as well.
Hi,
Just curious as to the reasoning behind that ?
@ high packet rates, you
From: Mike Tancsa [mailto:[EMAIL PROTECTED]
At 08:44 PM 29/02/2004, Don Bowman wrote:
From: Mike Tancsa [mailto:[EMAIL PROTECTED]
On Sat, 28 Feb 2004 23:17:44 -0500, in
sentex.lists.freebsd.hackers
If you want to spend more time in kernel, perhaps change
I might have HZ @ 2500
I have a machine running 4.9. P4 2.8Ghz, 800mhz bus, Intel PRO/1000
ethernet connected to a Cisco, both sides are locked to 1000/FD.
The kernel has HZ=1000, and DEVICE_POLLING, IPFW, DUMMYNET,
etc. After
only a few minutes of run time under an attack ~90,000 pps.
The attack
has been
It was kindly pointed out that I didn't including the symptoms of the
problem:
Without polling on, I get 70+% interrupt load, and I get live lock.
With polling on, I start getting huge amounts of input errors, packet
loss, and general unresponsiveness to the network. The web
server
...
You may need to increase the MAX_RXD inside your em driver
to e.g. 512.
I didn't know if my card had a buffer bigger than the default
256. I can
increase it, but I didn't know how to determine how big a MAX_RXD my
card would support. When the system was under load, it was
From: Romain Kang [mailto:[EMAIL PROTECTED]
Has anyone put together a version of memtest86
(http://www.memtest86.com/)
that can sit in the root directory next to the FreeBSD kernel?
My lab at work has a several racks of 1U boxes, most of which has
a CD-ROM or floppy installed. If we
From: Avleen Vig [mailto:[EMAIL PROTECTED]
Has anyone here used DEVICE_POLLING on an SMP box?
I have one server which does recieve ~130kpps at times on an
interface,
but I cannot enable DEVICE_POLLING because hte system locks up under
load from interrupts.
In this case I'm not sure
From: Avleen Vig [mailto:[EMAIL PROTECTED]
On Thu, Nov 20, 2003 at 12:58:58PM -0500, Don Bowman wrote:
I read Luigi's paper at info.iet.unipi.it/~luigi/polling/
which at the
end implies that DEVICE_POLLING on an SMP box might not make
sense - but
right now for me it would make
From: Luigi Rizzo [mailto:[EMAIL PROTECTED]
On Tue, Oct 07, 2003 at 06:17:04PM -0400,
[EMAIL PROTECTED] wrote:
Hi Luigi, Mark,
Thanks for your replies.
We did some intensive profiling of our application. It does
not seem like
we are depending on clock ticks for any calculations.
From: Wilko Bulte [mailto:[EMAIL PROTECTED]
On Sat, Oct 04, 2003 at 01:04:35PM -0700, Kris Kennaway wrote:
On Sat, Oct 04, 2003 at 03:20:03PM -0400, Richard Coleman wrote:
Kris Kennaway wrote:
On Sat, Oct 04, 2003 at 04:39:03PM +0200, Mikulas Patocka wrote:
I installed FreeBSD 4.9RC1
From: Leo Bicknell [mailto:[EMAIL PROTECTED]
I'm considering options for a new project, and I think I've discovered
what I think is the best idea, but I don't think current software
supports the config. I'd like to get some confirmation, and
comments on
if it would be hard to implement.
From: Josh Brooks [mailto:[EMAIL PROTECTED]
1. What is the workaround for this issue ? Be creative. Not
everyone can
update their userland in a normal fashion - and no, I won't
sit here and
justify that statement. Think embedded systems.
2. Is there really an exploit in the wild ?
From: Mike Silbersack [mailto:[EMAIL PROTECTED]
On Thu, 28 Aug 2003, Don Bowman wrote:
I have machdep.ddb_on_nmi=1.
I can drop into the debugger with the magic
key sequence. However, when i hit the NMI
jumper, i don't always go there. Sometimes
I do.
The system is 4-way SMP [2xHTT
I have machdep.ddb_on_nmi=1.
I can drop into the debugger with the magic
key sequence. However, when i hit the NMI
jumper, i don't always go there. Sometimes
I do.
The system is 4-way SMP [2xHTT xeon processors]
with 4.7.
Any suggestion on where my NMI might be going?
has anyone implemented a handler for the machine
check exception [MCE] on a x86 architecture? e.g. a
xeon? In particular, on an SMP machine. What could
one do if this exception where to occur [its
intended to be fatal].
___
[EMAIL PROTECTED]
From: Don Bowman
I find that if the kernel is in the middle of a printf,
is using a serial console, and a key is pressed, that i
may end up stuck in the siointr. I added a counter to
siointr1() so that if it receives more than 100 characters
in a single interrupt it panics. What I find
I propose this patch, which solves my issue. Comments?
$ cvs diff -U3 sio.c
Index: sio.c
===
RCS file: /usr/cvs/src/sys/isa/Attic/sio.c,v
retrieving revision 1.291.2.33.1000.4
diff -U3 -r1.291.2.33.1000.4 sio.c
--- sio.c 13
I find that if the kernel is in the middle of a printf,
is using a serial console, and a key is pressed, that i
may end up stuck in the siointr. I added a counter to
siointr1() so that if it receives more than 100 characters
in a single interrupt it panics. What I find happens is
that the chip (a
From: Brian Reichert [mailto:[EMAIL PROTECTED]
...
I maintain a local CVS repository of FreeBSD via CVSup.
...
http://www.scriptkiddie.org/freebsd/setting_up_local_repo.html
has the details you need. It entails an env var like:
CVS_LOCAL_BRANCH_NUM=1000
and changing the style of your cvsup.
From: Daorat Kerdlapanan [mailto:[EMAIL PROTECTED]]
I sent HTTP request to IP alias of my host with Multicast MAC address
01:00:5e:01:02:03, but i don't see reply or respone from my
FreeBSD. How can
i do it?
HTTP is a TCP protocol. TCP doesn't support multicast (since there
are replies to
From: Terry Lambert [mailto:[EMAIL PROTECTED]]
Hiten Pandya wrote:
Hehe. I was not being sarcastic. I just acknoledged your
statement. The
reason I asked about committing the patch in the first
place, is because I
thought that the patch had been around on the -net@ list,
and had
From: Terry Lambert [mailto:[EMAIL PROTECTED]]
Don Bowman wrote:
Is there any point to using device polling with the tigon 3
(broadcom 570x etc)? It has a pretty good interrupt reducer in it
by itself.
Just tune the 2 rx and the 2 tx parameters and you get a constant
interrupt rate
In sys/conf/kern.mk, there is a comment about not aligning
the (x86) stack to 16-byte boundaries, and it overrides the
preferred-stack-boundary to 2.
.if ${MACHINE_ARCH} == i386
CFLAGS+=-mno-align-long-strings -mpreferred-stack-boundary=2
.endif
This seems to be contradicted by intel's
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