On Jul 11, 2013, at 4:05 PM, Artem Belevich a...@freebsd.org wrote:
It would probably work for most of the crashes, but will not work in few
interesting classes of failure. Using in-kernel stack implicitly assumes that
your memory allocator still works as both the stack and the interface
Those sound useful. Just out of curiosity, however, since we're on the
topic of kernel dumps: Has anyone even looked into the notion of an
emergency fall-back network stack to enable remote kernel panic (or system
hang) debugging, the way OS X lets you do? I can't tell you the
Are you supposed to be able to use gcc to build userland binaries if you built
world with clang?
I'm on -CURRENT as of a few days ago (using armv6 but i'm not sure if that
matters). If I buildworld with clang, then attempt to compile some userland
binaries with gcc, I'll get missing symbols
Thanks to poudriere making this easy, we're now making public our (unofficial!)
constantly being rebuilt repository of binary packages for old FreeBSD releases
and less popular architectures.
See http://ftpmirror.your.org/pub/FreeBSD-Unofficial-Packages for instructions
on how to use this.
On Jun 4, 2013, at 7:33 PM, Outback Dingo outbackdi...@gmail.com wrote:
On Tue, Jun 4, 2013 at 8:21 PM, Kevin Day toa...@dragondata.com wrote:
If there's anyone out there that would prefer pkgng instead of the old style
packages, we might be able to get those going too. This is primarily
On Apr 8, 2013, at 7:34 PM, Alfred Perlstein bri...@mu.org wrote:
However, until a bunch of embedded folks come forward and state what they are
really willing to sacrifice, then we won't really have anything to go on, and
it will be guessing at what will work for a space that not all of us
On Mar 29, 2013, at 1:06 PM, Michael Wayne freebs...@wayne47.com wrote:
On Thu, Mar 28, 2013 at 07:31:50PM -0700, Freddie Cash wrote:
Every other minor release of FreeBSD is supported for 2 full years, with no
new features added, just security fixes (aka Extended Releases).
And every
On Feb 13, 2013, at 3:53 PM, Joshua Isom jri...@gmail.com wrote:
On 2/12/2013 10:20 AM, Kevin Day wrote:
I'm not sure if this is the right place to post this, so if you know of
anyone who may be interested in this please forward to them. Right now my
company (your.org) does the free
I'm not sure if this is the right place to post this, so if you know of anyone
who may be interested in this please forward to them. Right now my company
(your.org) does the free amd64/i386 VMs for FreeBSD developers.
For an unrelated project, we're trying to build a testbed of many of the
I'm working on a project that uses State Threads (ports/devel/st). For the
unaware, it's a kinda neat library that implements totally userland threads
with setjmp/longjmp, manually creating stacks and moving the stack pointer
around.
It works well, except for one problem, attempting to get a
On Mar 10, 2010, at 5:27 AM, Kostik Belousov wrote:
I think that the idea not to for CLFLUSH in the loop for large regions
is good. We do not extract the L2/L3 cache size now, I suppose that 2MB
estimation is good for most situations.
commit bbac1632d349d68b905df644656ce9a8e4aed094
Thanks
I'm troubleshooting a pretty weird problem with running FreeBSD 8.0 (amd64)
inside VMware ESX/ESXi servers. We've got a wide range of physical servers
running identical copies of VMware and identical FreeBSD virtual machines.
Everything works fine on all of our servers for Windows and Linux
On Mar 9, 2010, at 4:27 PM, John Baldwin wrote:
On Tuesday 09 March 2010 3:40:26 pm Kevin Day wrote:
If I boot up on an Opteron 2218 system, it boots normally. If I boot the
exact same VM moved to a 2352, I get:
acpi0: INTEL 440BX on motherboard
PCIe: Memory Mapped configuration base
Recently I bumped into something very weird. In some CPU heavy workloads,
FreeBSD ran faster inside VMware's ESX hypervisor than it did running natively
on bare metal. Simple pure CPU applications (such as openssl speed) would run
10-30% faster on VMware. This seemed very counterintuitive,
On Mar 6, 2010, at 12:05 AM, Daniel O'Connor wrote:
On Sat, 6 Mar 2010, Kevin Day wrote:
So, it seems that the VMware hypervisor is deactivating cores on the
CPU when idle, but FreeBSD itself isn't. Is anyone working on giving
FreeBSD's idle loop/scheduler the ability to go into deeper sleep
On Apr 28, 2009, at 3:19 PM, Julian Bangert wrote:
Hello,
I am currently trying to work a bit on the remaining missing
feature that NVIDIA requires ( http://wiki.freebsd.org/NvidiaFeatureRequests
or a back post in this ML) - the improved mmap system call.
For now, I am trying to extend
Oh, and everybody is invited to run
$ cd /usr/ports/archivers/lzo2 make
and check for themselves.
I've used lzo2 quite a bit in the past and never saw this, so I
thought I'd try this on a few boxes we have... Output is from make
fetch ; time make
8-core Opteron 2350 2.0ghz, 64GB
On Nov 27, 2008, at 1:44 PM, Dag-Erling Smørgrav wrote:
I wouldn't use a sysinstall script.
Set up a file system (say /nfsroot) on an NFS server in your lab.
Just in case anyone needs a real step-by-step guide to getting a
diskless PXE/NFS boot going, I wrote this up a little while ago.
On Nov 27, 2008, at 2:30 PM, Garrett Cooper wrote:
On Thu, Nov 27, 2008 at 12:03 PM, Kevin Day [EMAIL PROTECTED] wrote:
Just in case anyone needs a real step-by-step guide to getting a
diskless
PXE/NFS boot going, I wrote this up a little while ago.
http://sigsegv.org/wiki
On Nov 20, 2008, at 4:03 AM, Jeremy Chadwick wrote:
This has two problems, but I'm probably missing something:
1) See my original post, re: users of our systems use dmesg to find
out what the status of the system is. By status I don't mean from
the point the kernel finished to now, I
On Apr 12, 2008, at 12:15 AM, Markus Boelter wrote:
Hi!
Is the ipv6 routing to www.FreeBSD.org broken? This traceroute6 is
from a
Comcast cablemodem line in Santa Clara, CA.
traceroute6 to www.freebsd.org (2001:4f8:fff6::21) from
2002:4c67:29ce::216:cbff:fead:95f9, 30 hops max, 12 byte
We installed a 5.3-RELEASE box back in 2004, and it's been running
pretty hard ever since with no crashes, reboots or anything. We're
about to finally take it down to upgrade the OS soon - are there any
stats anyone wants to see before we do? I know in the past there have
been some I
We've got a FreeBSD 5.2.1-RELEASE-p1 server that's been up for 460
days now, with pretty heavy use the whole time (70GB+ per day http
traffic, 140 hits/sec, etc).
Before we give it a reboot to upgrade, does anyone want to see any
counters or stats or anything? I ask because it's
I think I've found a bug in fsck. Some invalid values in cylinder groups
don't get fixed.
From pass5.c:
if (cg-cg_rotor newcg-cg_ndblk)
newcg-cg_rotor = cg-cg_rotor;
else
newcg-cg_rotor = 0;
if
Yes, but the question was how is it preserved? The SSE stuff works the
same as the FPU stuff in that it is switched lazily. See npxsave() and
where it is called. If a process attaches to the fpu, its state is kept
in the fpu the whole time. It is not extracted at context switch time.
So,
A quick peek at swtch.s seems to show that the SSE registers (XMM0-7) aren't
being preserved across context switches. Am I missing somewhere that's doing
this, or are they really not being saved now?
--
Kevin Day
[EMAIL PROTECTED] - [EMAIL PROTECTED]
To Unsubscribe: send mail to [EMAIL
. :)
--
Kevin Day
[EMAIL PROTECTED] - [EMAIL PROTECTED]
To Unsubscribe: send mail to [EMAIL PROTECTED]
with unsubscribe freebsd-hackers in the body of the message
Kevin Day wrote:
Is there a simple way that I can lookup a symbol name(by address) during
runtime?
man dlopen.
I looked at this.. I see how I can dlopen my own executable, and dlsym()
will let me get addresses from symbol names, but how do I do the reverse? I
have an address
In the last episode (Jun 08), Kevin Day said:
Is there a simple way that I can lookup a symbol name(by address)
during runtime?
I know I can exec nm, look up for the address I need, and get local
symbols, but it would be really nice if I could get addresses of
functions in dynamic
In message [EMAIL PROTECTED] Kevin Day writes:
: I tried sending this from my work account, but our new exchange server isn't
: exactly sending mail correctly... Excuse the duplicate post if you see it.
: :)
It sounds like the PCI card that you are trying to read from is
generating
-
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+1YDufmdbiTBK+J8/IIl46sj
=LbQh
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--
Kevin Day
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with unsubscribe
-wise, or something got broken so that it's no
longer thread safe inside sprintf or dtoa.
Can someone cluefull point me in the right direction?
-- Kevin
Forwarded message:
From toasty Wed Jan 24 17:55:36 2001
From: Kevin Day toasty
Message-Id: [EMAIL PROTECTED]
Subject: Re: Field_float
I've got a Compaq Proliant ML530 server that seems to work just fine with
the funky RAID controller and management software. However, the if_sk driver
is giving me a small problem. I've got a SysKonnect dual 1000Mb ethernet
card on one of the PCI busses on the motherboard. The probe gets called,
Ok, I've got a system that seems to spuriously "panic: unknown/reserved
trap". In trying to figure out which exception got triggered, I did a
backtrace...
(kgdb) bt
#0 boot (howto=256) at ../../kern/kern_shutdown.c:303
#1 0xc016a355 in panic (fmt=0xc02c58d9 "unknown/reserved trap") at
Has anyone attempted to create a double buffered version of cp(1)? When
copying from one disk to another, disk activity seems to ping-pong between
the two, rather than keeping both active at the same time.
If I were to fork and do something similar to afio, or maybe even doing
something weird
We're having a problem where very very rarely we get a segfault on exec of
something, and I finally caught it:
# gdb menu
GNU gdb 4.18
Copyright 1998 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you are
welcome to change it and/or
We're having a problem where very very rarely we get a segfault on exec of
something, and I finally caught it:
Here's a better backtrace, sorry. :)
Program received signal SIGSEGV, Segmentation fault.
0x2813862d in vfprintf () from /usr/lib/libc.so.3
(gdb) bt
#0 0x2813862d in vfprintf
We're having a problem where very very rarely we get a segfault on exec of
something, and I finally caught it:
Ack... Ignore this whole thread... The first backtrace looked like
builtin_new was causing this... someone replaced my new/delete in this, and
didn't tell me.
Bad day.
i mean, do the hardware people want their stuff supported or not? that's
the main question
some seem to choose the NOT.
Hmmm. You're saying any one who disagrees with you chooses not to have
their stuff supported; "if you don't agree with me, you must be stupid",
right?
Your
I have an old pen computer that runs msdos. It has a keyboard and a
floppy and I would like to use it to hook up a serial console. Dose
anybody have a recomendation for a terminal program that I can download,
or directions on using kermit to connect to com2.
The two programs I have
I don't have access to a -current machine to try this on, so this only
applies to 3.4.
I have my ulimit set to 8MB for data/etc:
ulimit -a
core file size (blocks) 8192
data seg size (kbytes) 8192
file size (blocks) 8192
max locked memory (kbytes) 4096
max memory size
I've also asked you to undertake the second phase, which is to perform a
binary-search set of kernel builds to pin down the timeframe in which
this change occurred. It's also been suggested that the scheduler
changes made by Bruce Evans may have impacted your system; you might want
to
Leif Neland wrote:
Just configure it correctly. Don't tell it to talk to a serial device
that will be sending it gibberish.
A hack would be to have the loader emit ATE0 to protect itself from
echoing modems.
AFAIK, it would not protect against all modems. I think Winmodems,
I've started a side project that I'm trying to figure out how to scale. The
end result will be a test-based realtime chat (IRC, java, or otherwise) that
will bring very large crowds. You wouldn't believe how many geeks will show
up on IRC for a TV/Movie star even lessor known ones.
I've
Wow, thanks for such a detailed reply. :)
In message [EMAIL PROTECTED], you wrote:
What's the practical number of TCP connections per server?
I've gotten over 8,000 at one time on one FreeBSD box.
Yeah, best case, I've had several thousand myself, but not really doing
anything. :)
In the embedded system I'm working on, I have a need to get detailed hard
drive information in a userland process. Specifically, I need the contents
of all the values in wddrives[].
While I've made it work, I've run into a few difficulties. If someone thinks
this is useful enough, I'll clean it
On 27-Oct-99 Remy Nonnenmacher wrote:
In followup of the FFS thread, I would like to know if there are some
recommendations for running unattended machines. For exemple, avoiding
the 'run fsck manually' (for exemple, when co-locating a machine far
away where it is not possible to
Kevin Day wrote:
I mmap() files in, then copy them to a device. This works great except when
someone tries to change that file during the copy. If the size of the file
shrinks, I'll SIGBUS or SIGSEGV when i try to touch past the new file size.
So, i setup a signal handler
I mmap() files in, then copy them to a device. This works great except when
someone tries to change that file during the copy. If the size of the file
shrinks, I'll SIGBUS or SIGSEGV when i try to touch past the new file size.
So, i setup a signal handler and longjmp into some
Dodge Ram wrote:
Also, is there a list of reasons for a SIGSEGV ?
Only one: "Your program is buggy" :-)
- mark
I've actually got a SIGSEGV/SIGBUS handler in one of my programs that I
needed, and couldn't figure a way around...
I mmap() files in, then copy them to a device.
Hi,
The system in question (3.3-stable) needs to use a large FS (ca. 40GB).
The defaults for such filesystem are ridiculous, given that it will hold
at most couple of hundred big data files. So, my question is:
* should I change the cpg (default 16) to some bigger value?
* is it safe
: Thoughts?
:
: man madvise?
:
:
:Yeah, but MADV_FREE doesn't really do what I need. I have no idea if the
:system actually did free my ram or not. I want to hang on to the data, but
:if more ram is needed, then it can be discarded, but I need to know that it
:did, so that I can
Hi,
I have got a surprising problem with StarOffice 5.1
for Linux on FreeBSD 4.0-current, the latest snapshot.
The CD-ROM installation went fine (after I configured the
Posix real-time thread support and linked the
additional libraries to the Linux compatibility
directory and slightly
Perhaps this is already possible somehow, but...
In working with a graphical based embedded system (non-xwin), I'll typically
mmap the graphic files and bcopy them straight to our hardware blitter. This
works very nicely, since the kernel caches what it can off the disk, but
when more ram is
You can always hotwire the supply; go dig up a pinout for the ATX power
connector and you'll see that if you ground the power-on line the PSU
will come up...
It's not just a ground, the line that brings up the power is a momentary
switch, so a longish (about 1/2 second) pulse
You can always hotwire the supply; go dig up a pinout for the ATX power
connector and you'll see that if you ground the power-on line the PSU
will come up...
It's not just a ground, the line that brings up the power is a momentary
switch, so a longish (about 1/2 second) pulse
can, in good faith, say they could have something workable by
early next week, please contact me privately with your rates. We'll pay a
decent amount to have this done, if it can be done quickly.
Any takers?
Kevin Day
Midway Games
To Unsubscribe: send mail to [EMAIL PROTECTED
can, in good faith, say they could have something workable by
early next week, please contact me privately with your rates. We'll pay a
decent amount to have this done, if it can be done quickly.
Any takers?
Kevin Day
Midway Games
To Unsubscribe: send mail to majord...@freebsd.org
This is under 3.2-STABLE as of a few days ago. Any ideas here?
Yes, use CURRENT :-)
Ok, I'll upgrade tommorow and try again.
ConnectionStatus: DeviceConnected
Current Config Value: 0x01
Device Bus Speed: Full
Device Address: 0x06
Open Pipes: 3
Hey!
Thanx a lot first of all!
Anytime i CAN write something myself - i do. I can go as low as networking code
or pseudodevice driver. But i am at loss when it comes to hardware (and within
my scope of work etc. i doubt i will ever learn this stuff). Thats why i pleaded
for
You don't want to know what a ethernet/parallel/serial/hub thingie looks
like. I don't have one, so anyone that has one, could you send me the
output of the usb_dump utility avaible from
http://www.etla.net/~n_hibma/usb/usb.pl
I had a problem when I tried plugging in my two usb
This is under 3.2-STABLE as of a few days ago. Any ideas here?
Yes, use CURRENT :-)
Ok, I'll upgrade tommorow and try again.
ConnectionStatus: DeviceConnected
Current Config Value: 0x01
Device Bus Speed: Full
Device Address: 0x06
Open Pipes: 3
Hey!
Thanx a lot first of all!
Anytime i CAN write something myself - i do. I can go as low as networking
code
or pseudodevice driver. But i am at loss when it comes to hardware (and
within
my scope of work etc. i doubt i will ever learn this stuff). Thats why i
pleaded
Well, he's partially true.
We're looking at mass buying several thousand PCI modems. The cost for a
non-winmodem model is about 3x the Winmodem style. (You can buy winmodems
very cheap, since everyone is making them now. You can't buy non-winmodem's
cheap because only a few are doing
Well.. i just looked through some archives and also on the
recent traffic in freebsd-questions.
It seems there are great many people that have same problem i do - apparently
our beloved system does not support PCI modems? Now if i am wrong here -
kick me and ignore the rest of the
On Sun, 5 Sep 1999, Kevin Day wrote:
Well.. i just looked through some archives and also on the
recent traffic in freebsd-questions.
It seems there are great many people that have same problem i do - apparently
our beloved system does not support PCI modems? Now if i am
Well.. i just looked through some archives and also on the
recent traffic in freebsd-questions.
It seems there are great many people that have same problem i do - apparently
our beloved system does not support PCI modems? Now if i am wrong here -
kick me and ignore the rest of the
On Sun, 5 Sep 1999, Kevin Day wrote:
Well.. i just looked through some archives and also on the
recent traffic in freebsd-questions.
It seems there are great many people that have same problem i do -
apparently
our beloved system does not support PCI modems? Now if i am
I am trying to compile a sync driver maintenance program on fbsd-stable. I
keep getting compiler errors:
ft1config.o: In function `run_interactive':
ft1config.o(.text+0x565): undefined reference to `initscr'
ft1config.o(.text+0x56a): undefined reference to `cbreak'
I am trying to compile a sync driver maintenance program on fbsd-stable. I
keep getting compiler errors:
ft1config.o: In function `run_interactive':
ft1config.o(.text+0x565): undefined reference to `initscr'
ft1config.o(.text+0x56a): undefined reference to `cbreak'
4. What is the point of the "stty status '^T' at the top of the rc file?
Frankly, that one stumps me too. :) There are still plenty of "We've
always done it that way" items in the various rc files, that may be one of
them.
Without this, you cannot press ^T to see why the rc
4. What is the point of the stty status '^T' at the top of the rc file?
Frankly, that one stumps me too. :) There are still plenty of We've
always done it that way items in the various rc files, that may be one of
them.
Without this, you cannot press ^T to see why the rc script
At 12:29 PM 8/21/99 -0400, Chuck Robey wrote:
Anyone know where the spec might be for how ATX power supplies work
(especially the interface to the motherboard, and their on'off methods?)
Thanks.
ftp://download.intel.com/design/motherbd/atx_201.pdf
See section 4.2
Kevin
To Unsubscribe:
At 12:29 PM 8/21/99 -0400, Chuck Robey wrote:
Anyone know where the spec might be for how ATX power supplies work
(especially the interface to the motherboard, and their on'off methods?)
Thanks.
ftp://download.intel.com/design/motherbd/atx_201.pdf
See section 4.2
Kevin
To Unsubscribe:
An application I use quite often requires me to reverse the lines in the
file to get the desired output.
'tail -r' appears to be very inefficient in it's use of mmap(). It mmap's
the entire file in, which encourages the kernel to swap out the rest of the
system to keep pages of the input file
?
Kevin
[Charset iso-8859-1 unsupported, filtering to ASCII...]
I'd suggest that you use "tac" from GNU textutils.
Charles
-Original Message-----
From: Kevin Day [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, July 28, 1999 3:09 AM
To: [EMAIL PROTECTED]
Subject: Replace/rewrite
:Because of licensing restrictions in our product, we are unable to ship with
:any GNU/GPL'ed tools, so I'm forced to fix 'tail' rather than use tac. (I
:saw tac, and agree that it is faster for this specific use)
:
:Any VM people wanna pipe up and make a suggestion so that I may make up a
An application I use quite often requires me to reverse the lines in the
file to get the desired output.
'tail -r' appears to be very inefficient in it's use of mmap(). It mmap's
the entire file in, which encourages the kernel to swap out the rest of the
system to keep pages of the input file in
?
Kevin
[Charset iso-8859-1 unsupported, filtering to ASCII...]
I'd suggest that you use tac from GNU textutils.
Charles
-Original Message-
From: Kevin Day [mailto:toa...@dragondata.com]
Sent: Wednesday, July 28, 1999 3:09 AM
To: hack...@freebsd.org
Subject: Replace/rewrite
:Because of licensing restrictions in our product, we are unable to ship with
:any GNU/GPL'ed tools, so I'm forced to fix 'tail' rather than use tac. (I
:saw tac, and agree that it is faster for this specific use)
:
:Any VM people wanna pipe up and make a suggestion so that I may make up a
I know the evils associated with using rtprio, but I have a real real-time
application that needs to service data very quickly when it is needed from a
piece of hardware.
This daemon reads from a special device. The driver's read handler puts it
to sleep, and wakes it back up when an interrupt
I know the evils associated with using rtprio, but I have a real real-time
application that needs to service data very quickly when it is needed from a
piece of hardware.
This daemon reads from a special device. The driver's read handler puts it
to sleep, and wakes it back up when an interrupt
: The are dozens of libc routines which call malloc internally and
return
: allocated storage. strdup(), opendir(), fopen(), setvbuf(),
asprintf(),
: and so forth. Dozens. And while we might check some of these for
NULL,
: we don't check them all, and the ones we do
Doug wrote:
John Polstra wrote:
Are you sure? If you simply don't run an identd, the queries will
get an instant connection refused error. That's even faster than
sending back a bogus response.
Many daemons that request ident, and almost all IRC daemons
that I'm aware of
Doug wrote:
John Polstra wrote:
Are you sure? If you simply don't run an identd, the queries will
get an instant connection refused error. That's even faster than
sending back a bogus response.
Many daemons that request ident, and almost all IRC daemons
that I'm aware of
On Sun, 11 Jul 1999 00:49:59 EST, Kevin Day wrote:
However, pidentd is rather buggy of late, and tends to freak out a
lot. If we could have an 'official' identd, I'd like it. :)
I hope you can back that up with more than a desire to see "an official
identd", whatever
On Sun, 11 Jul 1999 00:49:59 EST, Kevin Day wrote:
However, pidentd is rather buggy of late, and tends to freak out a
lot. If we could have an 'official' identd, I'd like it. :)
I hope you can back that up with more than a desire to see an official
identd, whatever that means. Can
Is it worth it to write an identd for FreeBSD? With one sysctl added, it's
trivial to implement. If an identd would be desired, then should I make a
separate one, or rewrite the current inetd's internal identd shim? I
don't see a reason for pidentd when we could have an identd built in by
Is it worth it to write an identd for FreeBSD? With one sysctl added, it's
trivial to implement. If an identd would be desired, then should I make a
separate one, or rewrite the current inetd's internal identd shim? I
don't see a reason for pidentd when we could have an identd built in by
A friend of mine upgraded one of his machines to a duel-cpu
box and upgraded the OS to -STABLE, and he noticed that his
backups were being corrupted. The corruption appears to occur when
he transfers huge gzip'd tar files over a 100BaseTX network:
I believe that the
Perhaps this is the wrong list to post this question, but has there been
any work done on a script (similar to what Slackware Linux uses) that
asks the user questions (Do you want to run SCO binaries, etc) and
configures a kernel conf file for them?
If not, I'll volunteer to write
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