Hello,
I would like to unsubscribe myself from all freebsd mailing lists. I have
sent an unsubscribe to freebsd-hackers-unsubscribe, but did not get any
response to verify. Since the admin is on the mailing list, I would
appreciate if you can delete my name and/or email me the procedure to
follow
If you create a pseudo- device with an mmap() interface -that should do the
job.
regards
-kamal
On 11/23/06, Bharma Ji <[EMAIL PROTECTED]> wrote:
Hi
I am looking for any FreeBSD facility that will allow a userland process
to
pass data to the kernel without doing a copyin or copyout e.g. using
erger <[EMAIL PROTECTED]> wrote:
On Wed, Jul 12, 2006 at 06:33:09PM +0530, Kamal R. Prasad wrote:
> On 7/12/06, Joerg Sonnenberger <[EMAIL PROTECTED]> wrote:
>
> >On Tue, Jul 11, 2006 at 11:37:52PM +0200, Attilio Rao wrote:
> >> Even if I have no proof-of-concepts (so
On 7/12/06, Joerg Sonnenberger <[EMAIL PROTECTED]> wrote:
On Tue, Jul 11, 2006 at 11:37:52PM +0200, Attilio Rao wrote:
> Even if I have no proof-of-concepts (so maybe somebody can show that
> this is not fair), if we have setjmp/longjmp in the kernel we can have
> a correct exception handling me
The block device has a head which is positioned at (platter, cylinder,
sector) etc. before a write or read can be done. The strategy function
chooses the order in which blocks are to be accessed so as to minimize the
positioning required i.e. if we schedule closely located blocks of data for
acce
The link points to a commercial s/w. Is there interest in getting a free
driver for this? Any T40 sensor enabled laptop users run freebsd?
thanks
-kamal
On 6/30/06, Julian Elischer <[EMAIL PROTECTED]> wrote:
Anish Mistry wrote:
>On Friday 30 June 2006 04:49, Kamal R. Pra
Hello,
I installed Freebsd 6.1 on an IBM(now lenovo) Thinkpad T40. The dmesg shows
the following -which probably need some config changes.
acpi0: on motherboard
acpi_ec0: port 0x62, 0x66 on acpi0
acpi_bus_number: can't get _ADR
< same message repeated a number of times>
...
ugen0:
Hello,
I am planning to install freebsd 6.1 on IBM thinkpad (now lenovo) T 40.
Some people have reported issues for the same for freebsd 5.1 (related to
the em driver and possibly atheros). Have these been checked into 6.1 code
base and/or do I need to follow any procedure to get the same instal
On 1/31/06, Bharma Ji <[EMAIL PROTECTED]> wrote:
>
> Hi
> I am trying to explore the option avoiding copyin and copyout when mode
> switches from user to kernel and vice versa. One way to achieve this, as I
> understand, is to make the memory address (which contain the data to be
> copied) non page
On 1/24/06, Pranav Peshwe <[EMAIL PROTECTED]> wrote:
[snip]
> What is the difference between a kernel thread and a normal process
> created using fork ? except the address space sharing with swapper and
more than one kernel thread can be associated with a process and they all
share the same ad
through the 'struct proc' type pointer.
>
> TIA.
>
> Best regards,
> Pranav
>
> On 1/17/06, Kamal R. Prasad <[EMAIL PROTECTED]> wrote:
> >
> >
> >
> > On 1/16/06, Pranav Sawargaonkar < [EMAIL PROTECTED]> wrote:
> > >
> > &g
On 1/16/06, Pranav Sawargaonkar <[EMAIL PROTECTED]> wrote:
>
> Hi
> I want to access pagetable of a perticular process.
> How i should get it?Is it possible to access by using pointer of type
> 'struct proc'?
by accessimg the vmspace for the process.
Also i want to access each page referenced in
you mean, boosting the priority of a reader would be required to avoid
priority inversion, but difficult to implement?
regards
-kamal
On 1/14/06, John Baldwin <[EMAIL PROTECTED]> wrote:
> I think you just kind of punt and do a best effort. Trying to manage a
> list
> of current read lock holder
Priority need not be propagated to readers as they will not block other
readers.
Most likely, you only need to propagate to the writer to avoid priority
inversron.
regards
-kamal
On 1/13/06, prime <[EMAIL PROTECTED]> wrote:
>
> Hi hackers,
> I have a question about how priority propagation wor
uter Science
Engineering Center, ECCR 1B05
430 UCB
Boulder, CO 80303-0430
USA
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[EMAIL PROTE
[EMAIL PROTECTED] On Behalf Of Kamal
R. Prasad
Sent: Thursday, October 06, 2005 8:56 AM
To: freebsd-hackers@freebsd.org
Subject: problems with disk geometry
hello,
Im trying to install FreeBSD 6.0 beta5 on a samsung SP1604N hard
disk of about 160 GB.
The installer complains that it has a p
board is an "American Megatrends Corp" board with a pentium
4 chip on it
they ahve a propreitary bios on it -but its all post 2003 stuff.
Its the same result for fdisk whether you run standalone or from the
installer.
regards
-kamal
-gayn
Kamal R. Prasad
UNIX systems
someone tell me how to get past this problem?
thanks
-kamal
Kamal R. Prasad
UNIX systems consultant
http://www.kamalprasad.com/
[EMAIL PROTECTED]
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On 09-Sep-05, at 5:43 PM, Sergey Babkin wrote:
From: Mike Silbersack <[EMAIL PROTECTED]>
On Fri, 9 Sep 2005, Kamal R. Prasad wrote:
would a port of JFS2 be of interest to freebsd core?
thanks
-kamal
There are many things that would be of interest to FreeBSD users, but
that's
> [snip]
>
I think this is a useful approach for occasional file access, but I think
> the general interest in the more interesting Linux file systems is for
> less than occasional use. I.e., not just migration of data from Linux to
> FreeBSD, but for daily use in production on high performance sy
would a port of JFS2 be of interest to freebsd core?
thanks
-kamal
On 9/9/05, Greg 'groggy' Lehey <[EMAIL PROTECTED]> wrote:
>
> On Thursday, 8 September 2005 at 20:41:49 +0530, Kamal R. Prasad wrote:
> > Hello,
> > Has there been any work on porting JFS2 o
Hello,
Has there been any work on porting JFS2 onto Freebsd?
thanks
-kamal
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On 9/7/05, Pranav Peshwe <[EMAIL PROTECTED]> wrote:
> Hello,
> I am a final year CS student and wish to do a project in the
> FBSD kernel or networking domains.
> I am a part of a project group of four and we have the project as a part
> of syllabus for the final year.
>
> Ideas we could think of
On 9/6/05, Robert Watson <[EMAIL PROTECTED]> wrote:
>
> On Tue, 6 Sep 2005, Kamal R. Prasad wrote:
>
> >> one or more names and none of these names are more correct or
> >> authoritative than any of the others. If a user does 'ln /bin/ls /tmp'
&
>
> [snip]
I did. You just don't get it. A file may be associated with zero,
> one or more names and none of these names are more correct or
> authoritative than any of the others. If a user does 'ln /bin/ls
> /tmp' (assuming /bin and /tmp are on the same filesystem), it may be
> obvious to yo
When you mmap() a device, the d_mmap member is used.
eg:- fd = open("/dev/abc", O_RDWR);
my_addr = mmap(fd,...);
regards
-kamal
On 8/27/05, Hans Petter Selasky <[EMAIL PROTECTED]> wrote:
> Hi,
>
>
>
> I'm working on porting "/sys/fs/devfs" to NetBSD, and I noticed that it
> doesn't call
, devno, generation no) -without
relying on the name cache (on freebsd)?
thanks
-kamal
Kamal R. Prasad
UNIX systems consultant
http://www.kamalprasad.com/
[EMAIL PROTECTED]
In theory, there is no difference between theory and practice. In
e?
> ;)
If they get to developing their own fonts -they might.
regards
-kamal
--------
Kamal R. Prasad
UNIX systems consultant
http://www.kamalprasad.com/
[EMAIL PROTECTED]
In theory, there is no difference
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>
Kamal R. Prasad
UNIX systems consultant
http:/
gt; main(int argc, char *argv[])
> { ...
>
> if (ioctl(fd0, IOCTL_GET_B, Data) == -1)
>err(1, "IOCTL_GET_B");
>
> ...
> }
>
> ---
>
> Here I get EFAULT.
>
> What have I done wrong? How can I do it correctly?
> _
--- Daniel Eischen <[EMAIL PROTECTED]> wrote:
> On Wed, 22 Jun 2005, Peter Edwards wrote:
>
> > On 6/22/05, Kamal R. Prasad <[EMAIL PROTECTED]>
> wrote:
> > >
> > > The child process should be able to call any
> system
> > > calls it like
ild
process. I spose most implementations support that.
regards
-kamal
--------
Kamal R. Prasad
UNIX systems consultant
http://members.fortunecity.com/kamalp
[EMAIL PROTECTED]
In theory, there is no difference between theory and practice. In pr
it takes to make the game playable... (i would say
> some other form of
> *BSD, but it probobly wouldn't hog as much cpu :P)
>
> ~NVX
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ckers
> To unsubscribe, send any mail to
> "[EMAIL PROTECTED]"
>
Kamal R. Prasad
UNIX systems consultant
[EMAIL PROTECTED]
In theory, there is no difference between theory and practice. In practice,
there is:-).
-hackers@freebsd.org mailing list
>
http://lists.freebsd.org/mailman/listinfo/freebsd-hackers
> To unsubscribe, send any mail to
> "[EMAIL PROTECTED]"
>
Kamal R. Prasad
UNIX systems consultant
[EMAI
the segment
register to provide for non-conflicting process
spaces.
thanks
-kamal
------------
Kamal R. Prasad
UNIX systems consultant
[EMAIL PROTECTED]
In theory, there is no difference
before going back to sleep
If every kernel thread were to be treated at par with
a process, we wouldn't need a special algorithm.
regards
-kamal
Kamal R. Prasad
UNIX systems consultant
[EMAIL PROTECTED]
In theory, there is no difference between theory and practice. In practice,
there
) -if
threads were defined within process scope and not
system scope -the scheduling attributes of the process
will apply.
regards
-kamal
Kamal R. Prasad
UNIX sys
--- Julian Elischer <[EMAIL PROTECTED]> wrote:
>
>
> Kamal R. Prasad wrote:
>
> >--- Julian Elischer <[EMAIL PROTECTED]> wrote:
> >
> >
> >
> >>Kamal R. Prasad wrote:
> >>
> >>
> >>
> >>>
--- Julian Elischer <[EMAIL PROTECTED]> wrote:
>
>
> Kamal R. Prasad wrote:
>
> >--- Lucas Holt <[EMAIL PROTECTED]> wrote:
> >
> >
> >
> >>Wouldn't a multi threaded program potentially need
> >>mor
on
> the scheduler. (last
> > time I looked..
> > Let me know if I'm wrong).
> >
depends on whether it is defined to execute in system
scope or not.
regards
-kamal
=
Kamal R. Prasad
UNIX systems consulta
he Linux FUD network.
Talking of Linux, wouldn't it be great if all *BSD's
merged to form a single distribution? I mean, that
will help *bsd to win market share vs Linux -which in
turn will drive more open source developers to the
*bsd fold.
regards
-kamal
=
-------
--- Peter Pentchev <[EMAIL PROTECTED]> wrote:
> On Sun, Feb 06, 2005 at 04:22:41AM -0800, Kamal R.
> Prasad wrote:
> >
> > --- Scott Long <[EMAIL PROTECTED]> wrote:
> >
> > > Ashwin Chandra wrote:
[snip]
> > facility. I don't see anyth
--- Scott Long <[EMAIL PROTECTED]> wrote:
> Ashwin Chandra wrote:
>
> > Does anyone know the correct calls to open a file,
> write to it, and close it, IN *kernel* mode.
> >
> > Ash
>
> There is no common API for doing this, which is
> pretty much on purpose.
> First, you need to ask yours
--- Ryan Sommers <[EMAIL PROTECTED]> wrote:
> [EMAIL PROTECTED] wrote:
>
[snip]
> CPU cares about is
> endlessly executing instructions fed to it and
> delivering
> interrupts/exceptions. What your friend might be
Im not sure to how many types of hw FreeBSD has been
ported, but the POWER4 pro
Is it possible to load the loader on redboot, then
have the loader tftp the kernel over ethernet?
thanks
-kamal
--- Dan Nelson <[EMAIL PROTECTED]> wrote:
> In the last episode (Jan 26), M. Warner Losh said:
> > : I put loader,kernel.gz and mfsroot.gz in an
> ext2(dos) file system
> > : on harddi
bpf is a packet filter -which can be used to snoop on
all packets at the interface at the link level. You
would have to create a socket to do I/O, but the
snooper can mess around with the existing connection.
regards
-kamal
--- DJF <[EMAIL PROTECTED]> wrote:
> Hi everybody,
>
> I've recently be
--- [EMAIL PROTECTED] wrote:
[snip]
>
> Well booting the kernel generally takes little time,
> but if all the
> processes could be restored this would be a step in
> the right direction.
If restoring a previously executing program can
recover some *context*, then it makes sense to
restore. If y
Hello,
Can someone tell me how to resize the freebsd
partition without losing any data? I have a 8GB
freebsd partition and 1/2 GB swap and want to install
another *bsd onto the harddisk.
thanks
-kamal
__
Do you Yahoo!?
Read only the mail you
--- Zera William Holladay <[EMAIL PROTECTED]> wrote:
>
>
[snip]
>
> My understanding is that when a system call is made
> from a user process,
> there is a trap into the kernel, the state of the
> user process is saved
> and the address of the system call is determined by
> a looking up the
>
--- Allan Fields <[EMAIL PROTECTED]> wrote:
> On Wed, Jan 12, 2005 at 01:40:02PM -0800, Brooks
> Davis wrote:
> > On Wed, Jan 12, 2005 at 02:17:38PM -0700,
> Siddharth Aggarwal wrote:
> > >
> > > I am responding to a post back in Oct 2003 when
> the checkpointing feature
> > > was announced for
--- Gerald Heinig <[EMAIL PROTECTED]> wrote:
> Hi Robert,
>
> the benchmark you cited is for uniprocessor systems
> only.
> It says nothing about multiprocessor performance,
> which is what FreeBSD
> is aiming for.
Doesn't the (ULE) scheduler have a switch to ensure
that performance is optimal
--- Jan Engelhardt <[EMAIL PROTECTED]> wrote:
> >> What should I use instead? A semaphore?
>
> >You shouldn't have unrelated kernel threads waiting
> for a user
> >process at all, so this sounds like a design
> problem, regardless
> >of which mutual exclusion primitive you use. (Bear
> in mind
--- Peter Pentchev <[EMAIL PROTECTED]> wrote:
> On Wed, Dec 22, 2004 at 12:01:51AM +, Robert
> Watson wrote:
> >
> > On Mon, 13 Dec 2004, Joe Kelsey wrote:
> >
> > > I have a desire to fix posix semaphores in at
> least 5.3. The current
> > > implementation doesn't actually follow the
> "s
--- Andrey Simonenko <[EMAIL PROTECTED]>
wrote:
> On Wed, Dec 15, 2004 at 08:19:05PM +0530, Ravi
> Krishna wrote:
>
> > My question is why we store the
> p->p_sysent->sv_table
> > for each process. What is the reason for keeping
> this per process?
> > Are there some situations where two process
--- Joe Kelsey <[EMAIL PROTECTED]> wrote:
> On Tue, 2004-12-14 at 08:08 -0800, Kamal R. Prasad
> wrote:
> > --- Joe Kelsey <[EMAIL PROTECTED]> wrote:
> >
> > > I have a desire to fix posix semaphores in at
> least
> > > 5.3. The curre
--- Joe Kelsey <[EMAIL PROTECTED]> wrote:
> I have a desire to fix posix semaphores in at least
> 5.3. The current
> implementation doesn't actually follow the "spirit"
> of the standard,
> even though it technically qualifies in a somewhat
> degraded sense. I
> refer to the fact that the curre
--- Julian Elischer <[EMAIL PROTECTED]> wrote:
>
>
> Kamal R. Prasad wrote:
>
> >
> > My usb device probably doesn't have a dma
> controller, so I don't think
> > the bulk pipe can use any memory allocated by
> bus_dma. [Pl. correct me
&g
John-Mark Gurney wrote:
Kamal R. Prasad wrote this message on Wed, Dec 08, 2004 at 10:45 +0530:
Wilko Bulte wrote:
On Tue, Dec 07, 2004 at 02:19:19PM -0800, John-Mark Gurney wrote..
Kamal R. Prasad wrote this message on Tue, Dec 07, 2004 at 22:21 +0530:
There was a bug in
Wilko Bulte wrote:
On Tue, Dec 07, 2004 at 02:19:19PM -0800, John-Mark Gurney wrote..
Kamal R. Prasad wrote this message on Tue, Dec 07, 2004 at 22:21 +0530:
There was a bug in my interface routine which probably resulted in too
many calls.
Something like *paddr=vtophys(base) instead of
John-Mark Gurney wrote:
Kamal R. Prasad wrote this message on Mon, Dec 06, 2004 at 11:16 +0530:
John-Mark Gurney wrote:
Kamal R. Prasad wrote this message on Sun, Dec 05, 2004 at 00:38 +0530:
I wrote an mmap() interface for a USB device. But when I made a call to
it using mmap(), I
John-Mark Gurney wrote:
Kamal R. Prasad wrote this message on Sun, Dec 05, 2004 at 00:38 +0530:
I wrote an mmap() interface for a USB device. But when I made a call to
it using mmap(), I saw that mmap interface is called 3-4 times. The
calls are being made from within mmap() i.e. sys/vm
Hello,
I wrote an mmap() interface for a USB device. But when I made a call to
it using mmap(), I saw that mmap interface is called 3-4 times. The
calls are being made from within mmap() i.e. sys/vm/vm_mmap.c. Can
someone tell me if there is something like a re-try going on for some
reason?
Fro
Anaconda is also GPLed and also requires a good few changes for most
of it to run under FreeBSD. I haven't made any of these changes, but
we looked into using Anaconda in DragonFly before we started on our
own installer, and it would have just been too much work for the
deadline we had (our 1.
Andre Oppermann wrote:
Sam wrote:
On Thu, 2 Dec 2004, Andre Oppermann wrote:
Scott Long wrote:
5. Clustered FS support. SANs are all the rage these days, and
clustered filesystems that allow data to be distributed across many
storage enpoints and accessed concurrently through the SAN are very
pow
I find X windows to be a bit too compute intensive. Maybe something like
apple's interface would be a good alternative [for those who don't need
X-windows' powerful graphic features].
regards
-kamal
Scott Long wrote:
Jason C. Wells wrote:
--On Wednesday, December 01, 2004 3:02 PM -0700 Scott Lon
Hello,
I am not aware whether this is the right mailing list -so pl. advise
where to send in my request if it isn't. I am running Freebsd 5.2.1
I have sources from CD on my /usr/src -and want to upgrade to Stable 5.3.
I downloaded CVSup and the supfile to get RELENG_5_3. I found that it
does no
Hello,
I am using Freebsd 5.2. I wrote a driver whose ATTACH()/DETACH()
routines are called correctly when the usb device is attached/detached.
But when I do an open()/read()/ioctl()/close() -it calls usbopen(),
usbread(), usbioctl() etc.. instead of calling mydriverread(),
mydriverioctl()...
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