Hello,
I have a device that sends one byte over the serial line every 10ms.
Using c, I wrote an application that opens the serial port and reads
bytes in an infinite loop. I disabled all blocking (O_NONBLOCK, VMIN=0,
VTIME=0, B115200). My CPU spends ~100% of its time calling read()
[which
I receive data on the serial port (flags O_NONBLOCK, VMIN=0, VTIME=0,
B115200). The time the data shows up is quantized to 5ms. Where does
this 5ms quantization comes from?
Increasing kern.hz to 1 does not reduce this effect.
Thank you,
Chris
Chris Stankevitz wrote:
Q: What is the source of the alternating +/- 5ms bias that comes and
goes every few seconds?
This helps: add these lines to /boot/device.hints and reboot
hint.sio.0.flags=0x20
hint.sio.1.flags=0x20
Chris
___
freebsd
Hello,
Hello, I have two questions:
1. Is it true that I have the choice to run these versions of FreeBSD:
8.0 CURRENT
7.2 RELEASE
7.2 STABLE
7.2 CURRENT
7.1 RELEASE
7.1 STABLE
7.1 CURRENT
7.0 RELEASE
7.0 STABLE
7.0 CURRENT
6.4 RELEASE
6.4 STABLE
6.4 CURRENT
2. For each of the versions
Andrew Gould wrote:
Once you're installed a RELEASE, you can update it to STABLE by
Andrew,
Thank you for your helpful reply. Please tell me if you think I have
the correct understanding:
When I install FreeBSD, I am installing a core operating system version
number (your term). Then I
Chuck,
Thank you for your help. I have two questions:
Chuck Swiger wrote:
Ports are not branched-- there is no STABLE or CURRENT for ports. The
same ports tree can be used on 6.x, 7.x, and 8-CURRENT.
1. With what is the STABLE/CURRENT tag associated?
a) core operating system version number
Chuck Swiger wrote:
If you just want security updates and no other changes, you'd update
against RELENG_7_2 instead.
Here are you referring only to security updates to the core OS and not
applications in ports such as Firefox?
In the BSDs, the baseline or core OS is separate
from installed
Chuck Swiger wrote:
Yes, all of the above. Basically, ports (or packages) install under
/usr/local; everything else under /bin, /usr/bin, etc is part of the
core OS.
Okay, I think I understand now.
Applications on a FreeBSD machine are broken into two categories:
1. Applications installed
Hello,
I once had a problem in linux sometimes connecting to windows file
sharing with CIFS is extremely slow. After too much searching, I
discovered the problem was a buggy kernel device driver for some lame
ethernet card I bought.
Which kernel ethernet device driver works best under
Hello,
I recently stumbled across The FreeBSD GNOME Project webpage which is
filled with detail and great instructions. It is located at
http://www.freebsd.org/gnome/index.html
Q1: Where can I find the FreeBSD page that links to The FreeBSD GNOME
project webpage?
Q2: Where can I find a
The FreeBSD handbook section 4.5.1 describes several methods for
obtaining the ports collection including CVSup, Portsnap, and sysinstall.
Section 4.5.1 also describes how to update the ports collection, but
only for the CVSup and Portsnap methods.
Q1: How do I update the ports collection
I was saddened to find that my ethernet card did not work on my FreeBSD 7.2
machine. The bge driver in the kernel did not support the broadcom 5756ME.
Here is how I got it to work:
1. Set my machine up to compile the kernel (see section 8.5 of manual)
2. Edit
Hello,
I just installed FreeBSD. After I installed it, I was surprised to find only
26M of space on /. I used the auto-defaults during the Disklabel portion of
the install.
[cstankev...@crs-m6300 ~]$ df -h
Filesystem SizeUsed Avail Capacity Mounted on
/dev/ad4s1a496M430M
Please try this:
1. at the prompt type man man to get the man manual page.
2. press CTRL-G to to to the bottom of the document
3. press k to scroll up one line
You'll notice you cannot perform step 3 because man quits back to the prompt
after CTRL-G.
Question: How can I make man not quit back
Hello,
Question: What command should I issue to see what each of my installed x11
fonts looks like?
Thank you,
Chris
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http://lists.freebsd.org/mailman/listinfo/freebsd-questions
To unsubscribe,
Bill Campbell wrote:
The -e and -E options to less control this. You want neither of
these specified if you don't want to have less automatically exit
at end-of-file. The ``-e'' option causes it to exit the second
time it hits eof while ``-E'' exits the first time.
Bill,
Thank you for your
Yuri wrote:
I have a netbook which I would like to install FreeBSD on.
I am going to order a new harddrive. But will this Broadcom card be
supported or I also need to get another miniPCI replacement card?
I got my broadcom 5756ME working by just adding a reference to it in
if_bge.c and
nicholas addei wrote:
please am not able to install gnome on freebsd 7.2,after loging in as root
You need to follow these instructions:
http://www.freebsd.org/gnome/index.html
Chris
___
freebsd-questions@freebsd.org mailing list
Hello,
I recently performed a CPU intensive task with Xorg. When I completed the task
and Xorg no longer was using the CPU, I got this result from top:
===
last pid: 1201; load averages: 0.24, 0.10, 0.09up 0+00:29:42
63 processes: 1 running, 62 sleeping
CPU: 1.0% user, 0.0% nice,
Dan Nelson wrote:
Junior Hacker Project: add an instantaneous-CPU value (calculated by
subtracting successive ki_runtime values) to the list of things top
calculates and toggle it and weighted-CPU when pressing C. The toggling
code is already there; it just toggles between two different
pkg_add -r gnome2
This command fails repeatedly with broken pipe because the FTP connection
breaks. When it dies, I just re-run the command. I'm now on the fifth attempt.
The gnome2 package is a meta package that installs many other packages.
Q1: Is it bad for my FreeBSD system that I keep
My rc.conf file has this entry: gnome_enable=YES
Q: Where on my hard drive can I find the instructions executed to enable
GNOME?
A: /usr/local/etc/rc.d/gnome [bad answer: file does not exist]
Thank you,
Chris
___
From: Dan Nelson dnel...@allantgroup.com
Q: Where on my hard drive can I find the instructions
executed to enable GNOME?
Try:
grep name=.*gnome /usr/local/etc/rc.d/*
Thank you. This command returns nothing, but it got me looking in the right
place.
There are multiple references
From: Rob Farmer rfar...@predatorlabs.net
Q: Where on my hard drive can I find the instructions
executed to enable GNOME?
This enables dbus, avahi, hal, and gdm (assuming that they
are
installed, of course). See the files for those things in
/usr/local/etc/rc.d for the details of what
From: Kevin Kinsey k...@daleco.biz
Q2: Where on my hard drive are the bytes that tell
pkg_add to use
ftp.freebsd.org when downloading packages?
You mean like inode number, which cylinder
No, I am looking for a file name.
Thank you,
Chris
http://lists.freebsd.org/pipermail/freebsd-gnome/2010-June/024394.html
In the above post, a FreeBSD GNOME team member recommends rebuilding and
reinstalling sysutils/polkit, sysutils/policykit, and sysutils/consolekit.
Q: How do I rebuild and reinstall these applications when they were
--- On Wed, 6/30/10, Yuri Pankov yuri.pan...@gmail.com wrote:
/usr/src/usr.sbin/pkg_install/add/main.c
static char * getpackagesite(void)
which constructs URL using ftp.freebsd.org unless
PACKAGESITE and
PACKAGEROOT are defined.
Perfect, thank you!
Chris
Hello,
I setup my system using packages. I have 675 packages installed and 0
ports installed.
Q: Is there a simple way to replace each package with the locally compiled
port?
Ideally the procedure will not ask me any questions and will leave me with 0
installed packages and 675 installed
--- On Thu, 7/1/10, Glen Barber glen.j.bar...@gmail.com wrote:
Once ports or packages are installed,
there is no
differentiation to the system.
Interesting. If this is true, then I can just start upgrading my 'pkg_add'
installed packages using ports and eventually they will all be converted
--- On Thu, 7/1/10, Chris Stankevitz chrisstankev...@yahoo.com wrote:
Q: Is there a simple way to replace each package with the
locally compiled port?
portmaster -f -a
Ideally the procedure will not ask me any questions
Be prepared to answer hundreds of options questions. To take
--- On Thu, 7/1/10, Randal L. Schwartz mer...@stonehenge.com wrote:
Chris Be prepared to answer hundreds of options
questions. To take the default option you must press
TAB, ENTER to each query. Have fun!
I just hit the letter O for OK.
Randal,
Thank you, pressing O is indeed easier than
Installation instructions for GNOME and KDE:
http://www.freebsd.org/gnome/docs/faq2.html#q1
http://freebsd.kde.org/instructions.php
GNOME:
1. cd /usr/ports/x11/gnome2, make install clean
2. Add 'gnome_enable=YES' to rc.conf
KDE:
1. cd /usr/ports/x11/kde4, make install clean
2. [none
--- On Fri, 7/2/10, Polytropon free...@edvax.de wrote:
I think KDE also relies on DBUS and HAL
Ok
and activating the KDE login manager
for X (kdm) requires an entry in /etc/ttys similar to the
one that is suggested for Gnome;
GNOME installation docs suggest adding gnome_enable=YES to
--- On Fri, 7/2/10, Chris Stankevitz chrisstankev...@yahoo.com wrote:
KDE:
1. cd /usr/ports/x11/kde4, make install clean
2. [none listed]
Q: Does KDE installation have a Step 2?
2. Add these lines to ~/.xinitrc:
PATH=/usr/local/kde4/bin:$PATH
export PATH
startkde4
3. Use 'startx
--- On Fri, 7/2/10, Adam Vande More amvandem...@gmail.com wrote:
What you should be doing is following the freebsd handbook,
it's specifically written for these types of issues.
http://www.freebsd.org/doc/en/books/handbook/x11-wm.html
Adam,
Thank you. I started out with the handbook but
http://www.freebsd.org/doc/handbook/network-natd.html
http://lists.freebsd.org/pipermail/freebsd-questions/2011-April/229017.html
Hello,
Handbook section 31.9.3 suggests I should, among other things, add the
line ipdivert_load=YES to /boot/loader.conf when setting up NAT.
The mailing list
Hello,
Handbook section 31.9 describes the setup of NAT.
Section 31.9.3 suggests net.inet.ip.fw.default_to_accept=1 during
the first attempts to setup a firewall and NAT gateway.
Section 31.9.5 suggests I specify a predefined firewall ruleset that
allows anything in with firewall_type=OPEN
On Thu, Oct 10, 2013 at 8:22 PM, Michael Ross g...@ross.cx wrote:
ipfw always has one default rule, standard is
[snip]
Specifing firewall_type=OPEN gives you an additional rule
Michael,
Thank you that is exactly what I am seeing.
Chris
___
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