On Tue, 8 Mar 2005, Francesco Oppedisano wrote:
Hi,
i'm trying to estimate the interrupt latency (time between hardware
interrrupt and the start of the ISR) of a linux kernel 2.4.29 and i
used a simple tecnique: inside the do_timer_interrupt i read the 8259
counter to obtain the elapsed time.
By th
Hello mem-map gurus,
If one uses x = __get_dma_pages(GFP_KERNEL, nr), finds the physical
address with b = virt_to_bus(x), then attempts to mmap(,,b,,,) the result
_does_not_fail_, yet the user ends up with memory ...somewhere
that is R/W able and WRONG.
Yet, if the code executes SetPageReserved
When I mount the root file-system and the proc file-system on
an embedded system, I use MS_NOATIME|MS_NODIRTIME for the flags.
No errors are reported and the file-systems are mounted.
However, the (struct stat) st_mtime of the /proc directory
is updated at every access and the st_mtime of any speci
On Wed, 9 Mar 2005, Mukund JB. wrote:
Hi all,
I am running Redhat 9 Linux.
I have problem with compiling the i810fb driver downloaded from
Sourceforge site. I have D/W the i810fb patch
"linux-i810fb-0.0.35.tar.bz2".
When I run the make modules I get the following ERROR
i810_main.c: 643: warning: pa
On Wed, 9 Mar 2005, Andrew Morton wrote:
Russell King <[EMAIL PROTECTED]> wrote:
I'm not convinced about the practicality of converting all static
initialisations to code-based initialisations though
This is the first one I recall seeing. All the other conversions were
replacing
static
On Thu, 10 Mar 2005, Nate Edel wrote:
From: "Arjan van de Ven" <[EMAIL PROTECTED]>
To: "Jason Luo" <[EMAIL PROTECTED]>
A data acquisition card. In DMA mode, the card need 200M contiguous
memory for DMA.
(or want to reserve memory at the boot commandline and then do really
really evil hacks)
Such as
On Sat, 12 Mar 2005, Matthias-Christian Ott wrote:
Hi!
I hope I'm right here. I've the following assembler code:
SECTION .DATA
hello: db 'Hello world!',10
helloLen: equ $-hello
SECTION .TEXT
GLOBAL main
main:
; Write 'Hello world!' to the screen
mov eax,4
On Wed, 23 Mar 2005, Arjan van de Ven wrote:
On Wed, 2005-03-23 at 15:56 -0500, linux-os wrote:
static void start_timer(void)
{
if(!atomic_read(&info->running))
{
atomic_inc(&info->running);
same race.
No such race at all.
here there is one; you use add_timer
On Wed, 23 Mar 2005, sounak chakraborty wrote:
--- linux-os <[EMAIL PROTECTED]> wrote:
On Wed, 23 Mar 2005, Arjan van de Ven wrote:
On Wed, 2005-03-23 at 15:56 -0500, linux-os wrote:
static void start_timer(void)
{
if(!atomic_read(&info->running))
{
atomic_inc(&
Memory gurus,
We have an application where a driver allocates DMA-able memory.
This DMA-able memory is mmap()ed to user-space. To conserve
DMA memory only single pages are obtained using
__get_dma_pages(GFP_KERNEL, 1) (one page at a time). These
pages, that may be scattered all about, are mmap()ed
Isn't it expensive of CPU time to call kfree() even though the
pointer may have already been freed? I suggest that the check
for a NULL before the call is much less expensive than calling
kfree() and doing the check there. The resulting "double check"
is cheap, compared to the call.
On Fri, 25 Mar
On Fri, 25 Mar 2005, Jesper Juhl wrote:
(please keep me on CC)
checking for NULL before calling kfree() is redundant and needlessly
enlarges the kernel image, let's get rid of those checks.
Hardly. ORing a value with itself and jumping on condition is
real cheap compared with pushing a value into t
On Sat, 26 Mar 2005, Arjan van de Ven wrote:
On Fri, 2005-03-25 at 17:29 -0500, linux-os wrote:
Isn't it expensive of CPU time to call kfree() even though the
pointer may have already been freed?
nope
a call instruction is effectively half a cycle or less, the branch
Wrong!
predictor of th
On Sat, 26 Mar 2005, Marcin Dalecki wrote:
On 2005-03-27, at 00:21, linux-os wrote:
Always, always, a call will be more expensive than a branch
on condition. It's impossible to be otherwise. A call requires
that the return address be written to memory (the stack),
using register indirection
On Sun, 27 Mar 2005, Arjan van de Ven wrote:
On Sat, 2005-03-26 at 18:21 -0500, linux-os wrote:
On Sat, 26 Mar 2005, Arjan van de Ven wrote:
On Fri, 2005-03-25 at 17:29 -0500, linux-os wrote:
Isn't it expensive of CPU time to call kfree() even though the
pointer may have already been freed?
n
On Mon, 28 Mar 2005, Steven Rostedt wrote:
On Sun, 2005-03-27 at 21:54 -0400, Horst von Brand wrote:
Wrong. You are free to do whatever you like in the privacy of your home,
but not distribute the result. So you could very well distribute both
pieces, one under GPL, the other not, and leave the lin
I tried your program with several 'val' values including ~0 and
0. The results were the same. In spite of using character pointers
on large negative integers, everything worked. What was the observed
kernel problem?? Perhaps, the kernel's printk() was not as kind
as g++ and you got some strange pri
On Mon, 28 Mar 2005, Steven Rostedt wrote:
On Mon, 2005-03-28 at 19:56 -0500, Kyle Moffett wrote:
On Mar 28, 2005, at 19:21, Steven Rostedt wrote:
So you are saying that a stand alone section of code, that needs
wrappers to work with Linux is a derived work of Linux? If there's
some functionality,
On Tue, 29 Mar 2005, Mateusz Berezecki wrote:
Hello dear list readers,
I've been googling on the topic for a couple of minutes and I got
some question.
If PCI bus mastering means the device gets the control over the
bus and does all
device voodoo is it possible to achieve the same effects without u
On Wed, 30 Mar 2005, Davide Rossetti wrote:
Bouchard, Sebastien wrote:
Hi,
I'm in the process of writing a linux driver and I have a question in
regards to tasklet :
Is it ok to have large delay "udelay(1000);" in the tasklet?
If not, what should I do?
Please send the answer to me personally (I'm n
On Wed, 30 Mar 2005, Linus Torvalds wrote:
[ binutils and libc back in the discussion - I don't know why they got
dropped ]
On Tue, 29 Mar 2005, H. J. Lu wrote:
There is no such an instruction of "movl %ds,(%eax)". The old assembler
accepts it and turns it into "movw %ds,(%eax)".
I disagree. Viole
On Wed, 30 Mar 2005, krishna wrote:
Hi all,
How can one debug kernel before there is no printk mechanism in kernel.
Regards,
Krishna Chaitanya
Write directly to screen memory at 0x000b8000, or write to the
RS-232C UART while polling the TX buf empty bit, or just write
bits that mean something to yo
YI, a real-mode segment is a 16-byte entity, therefore there are
many segment:offset combinations that can get you to 0x000b8000.
On Wednesday 30 March 2005 04:47 pm, linux-os wrote:
On Wed, 30 Mar 2005, krishna wrote:
Hi all,
How can one debug kernel before there is no printk mechanism in kernel.
R
On Wed, 30 Mar 2005, Rik van Riel wrote:
On Tue, 29 Mar 2005, linux-os wrote:
If there is documented proof that those symbols were previously
available and then they were changed to something more restrictive,
I think one would prevail if a complaint were brought in court.
They're still avai
On Wed, 30 Mar 2005, Vicente Feito wrote:
On Wednesday 30 March 2005 06:09 pm, linux-os wrote:
On Wed, 30 Mar 2005, Vicente Feito wrote:
Video memory is at b800:, for humans 0xb800, not at 0x000b8000
Wrong. "real-mode" can use a segment address of b800, that doesn't
work in
On Thu, 31 Mar 2005, Sean wrote:
On Wed, March 30, 2005 2:57 pm, linux-os said:
Yes. And this would show that whomever did that already violated the
intent of the GPL by adding restrictions to use. NotGood(tm).
Dick,
You are so full of shit. There are no additonal restrictions, just the
/var/gdm/:0.Xauth -nolisten tcp vt7
442 4735 4619 15 0 2 8940 - S? 0:02
/usr/bin/gdmgreeter
4 0 4890 1 17 0 2744 1108 wait S? 0:00 login --
root
4 0 5119 1 17 0 2744 1328 wait S? 0:00 login --
linux-os
On Fri, 1 Apr 2005, Evgeniy Polyakov wrote:
Hello, developers.
In order to compete with the new upcoming releases of the
various OSes, and to join all developers efforts into the
one really promising and powerfull direction,
I present you following patch,
which removes absolutely unused in a real w
[PATCH snipped]
Cruel joke. Now 80 percent of the Intel clones won't boot.
Those are the ones that run industry, you know, the stuff that
is necessary to earn money.
Without i386 support, you don't have any embedded systems. You
need to use the garbage Motorola CPUs and the proprietary
operating sy
Tue Jan 11 07:07:40 EST 2005
IBM has announced that it will provide free access to about
500 of its existing software patents to users and groups
working on open source software.
http://www.ibm.com/news/us/
Many of these patents relate to interoperability, communications,
file-export proto
On Mon, 17 Jan 2005, Peter Kruse wrote:
Hello,
thanks for your reply
linux-os wrote:
>
When they 'disappear', use `arp -d hostname` to delete the
entry from the ARP tables. Then see if you can ping it.
It is possible that the destination machine got re-routed
and the new router's
On Tue, 18 Jan 2005, Robert White wrote:
I thought it was not at all unusual to miss a jiffy here or there due
to interrupt
locking/latency; plus jiffies is expressed with respect to the value
of HZ so you
would need to do some deviding in there somewhere.
Makes no difference. The idea is that jiff
On Wed, 19 Jan 2005, Bodo Eggert wrote:
Sam Ravnborg <[EMAIL PROTECTED]> wrote:
1) Unconditionally execute make install assuming vmlinux is up-to-date.
make modules_install run unconditionally, so this is already know
practice
(o) Vote for this.
IMO, a make install should NEVER run the compil
On Wed, 19 Jan 2005, Andrew Morton wrote:
Badari Pulavarty <[EMAIL PROTECTED]> wrote:
I was playing with kexec+kdump and ran into this on 2.6.10-mm1.
I have seen similar behaviour on 2.6.10.
I am using a 4-way P-III machine. I have a module which tries
gets same spinlock twice. When I try to "in
On Tue, 25 Jan 2005, John Richard Moser wrote:
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1
Dmitry Torokhov wrote:
On Tue, 25 Jan 2005 13:37:10 -0500, John Richard Moser
<[EMAIL PROTECTED]> wrote:
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1
Linus Torvalds wrote:
On Tue, 25 Jan 2005, John Richar
On Tue, 25 Jan 2005, Robert Szeleney wrote:
Hi!
This is my first time posting to the Linux kernel mailing-list, and I hope
someone can help me or at least explain following to me.
When a task gets interrupted by a signal, the do_signal() function is called.
Now, when the signal is not handled by
On Fri, 8 Feb 2008, Mark Hounschell wrote:
> linux-os (Dick Johnson) wrote:
>>
>> The correct word should be "invalid," in spite of
>> the fact that the SCSI committee used invalid syntax.
>>
>> Alan is right. There is nothing illegal in the kernel
>
On Wed, 13 Feb 2008, [iso-8859-1] Ilpo Järvinen wrote:
> They're defined later on in the same file with bodies and
> nothingin between needs them.
>
> Signed-off-by: Ilpo Järvinen <[EMAIL PROTECTED]>
> ---
> include/linux/coda_linux.h |3 ---
> 1 files changed, 0 insertions(+), 3 deletions(-)
On Wed, 13 Feb 2008, [iso-8859-1] Ilpo Järvinen wrote:
> On Wed, 13 Feb 2008, linux-os (Dick Johnson) wrote:
>>
>> On Wed, 13 Feb 2008, [iso-8859-1] Ilpo Järvinen wrote:
>>
>>> They're defined later on in the same file with bodies and
>>> nothingin bet
On Thu, 14 Feb 2008, Mika Lawando wrote:
> Jasper Bryant-Greene schrieb:
>> On Thu, 2008-02-14 at 10:30 +0100, rzryyvzy wrote:
>>
>>> /dev/null is often very useful, specially if programs force to save data in
>>> some file. But some programs like to creates different temporary file
>>> names,
The correct word should be "invalid," in spite of
the fact that the SCSI committee used invalid syntax.
Alan is right. There is nothing illegal in the kernel
and if there is, it must be removed as soon as it
is discovered!
On Fri, 8 Feb 2008, James Bottomley wrote:
>
> On Fri, 2008-02-08 at 1
On Mon, 25 Feb 2008, Arvid Brodin wrote:
> I need to write messages > 1023 characters long to the console from a
> module*. printk() is limited to 1023 characters, and splitting the message
> over several printk()'s results in a line break and "Month hh:mm:ss host
> kernel:" being inserted in
On Thu, 21 Jul 2005, Jesper Juhl wrote:
> On 7/21/05, Kyle Moffett <[EMAIL PROTECTED]> wrote:
>> On Jul 20, 2005, at 20:45:21, Paul Jackson wrote:
> [...snip...]
>> *cough* TargetStatistics[TargetID].HostAdapterResetsCompleted *cough*
>>
>> I suspect linus would be willing to accept a few cleanup
On Fri, 22 Jul 2005, Bernd Petrovitsch wrote:
> On Fri, 2005-07-22 at 08:27 -0300, Vinicius wrote:
> [...]
>>I have a server with 2 Pentium 4 HT processors and 32 GB of RAM, this
>> server runs lots of applications that consume lots of memory to. When I stop
>> this applications, the kernel d
On Fri, 22 Jul 2005, vamsi krishna wrote:
> Hello,
>
>>
>> The location of the vsyscall page is different on 32 and 64 bit
>> machines. So 0xe000 is NOT the address you are looking for while
>> dealing with the 64 bit machine. Rather 0xff60 is the
>> correct location (on x86-64).
On Fri, 22 Jul 2005, vamsi krishna wrote:
> Hi,
>
>> It doesn't. The 32-bit machines never show 64 bit words in
>> /proc/NN/maps. They don't "know" how.
>>
>> b7fd6000-b7fd7000 rw-p b7fd6000 00:00 0
>> b7ff5000-b7ff6000 rw-p b7ff5000 00:00 0
>> bffe1000-bfff6000 rw-p bffe1000 00:00 0 [st
On Fri, 5 Aug 2005, Petr Vandrovec wrote:
> Hello Linus,
> can you apply patch below?
>
> Since beginning of July my Opteron box was randomly crashing and being
> rebooted
> by hardware watchdog. Today it finally did it in front of me, and this patch
> will hopefully fix it.
>
> Problem is tha
On Fri, 5 Aug 2005, Petr Vandrovec wrote:
> linux-os (Dick Johnson) wrote:
>> On Fri, 5 Aug 2005, Petr Vandrovec wrote:
>>
>>
>>> Hello Linus,
>>> can you apply patch below?
>>>
>>> Since beginning of July my Opteron box was randomly
On Fri, 5 Aug 2005, Antoine Martin wrote:
>>> [ 4788.218951] Unable to handle kernel NULL pointer dereference at
>>> 0028 RIP:
>>> [ 4788.218959] {inode_has_perm+81}
>>> [ 4788.218971] PGD 2485f067 PUD 0
>>> [ 4788.218975] Oops: [1] PREEMPT
>>> [ 4788.218977] CPU 0
>>> [ 4788.21
On Fri, 5 Aug 2005, Dave Jones wrote:
> On Fri, Aug 05, 2005 at 01:19:40PM -0400, linux-os (Dick Johnson) wrote:
> >
> > > tsdev 8832 0
> >___ This doesen't seem to be a "standard" module. Maybe
> > it doesn't h
On Fri, 5 Aug 2005, Venkatesh Pallipadi wrote:
> On Fri, Aug 05, 2005 at 11:53:29AM -0700, Andrew Morton wrote:
>>
>> That's all pretty sad stuff. I guess for now we can go back to the busy
>> loop. Longer-term it would be nice if we could tune up the HPET driver in
>> some manner so we can avo
On Fri, 5 Aug 2005, Martin Loschwitz wrote:
> Hi folks,
>
> I just ran into the following problem: Having updated my box to 2.6.12.3,
> I tried to start YaST2 and noticed a kernel panic (see below). Some quick
> debugging brought the result that the kernel crashes while some user (not
> even root
On Fri, 5 Aug 2005, Martin Loschwitz wrote:
> On Fri, Aug 05, 2005 at 03:40:26PM -0400, linux-os (Dick Johnson) wrote:
>>
>> On Fri, 5 Aug 2005, Martin Loschwitz wrote:
>>
>>> Hi folks,
>>>
>>> I just ran into the following problem: Having update
On Mon, 8 Aug 2005, Hiroki Kaminaga wrote:
>
> Hi!
>
> I'm looking for *nice* way to get address of loaded module in 2.6.
> I'd like to know the address from driver.
>
> In 2.4, I wrote something like this:
>
> * * *
>
> (in kernel src)
> --- kernel/module.c
> +++ kernel/module.c
>
> struct modul
On Mon, 8 Aug 2005, mhb wrote:
> Hi
>
> I had added an assembly program to the networking
> section of kernel linux 2.2.16 without any problem.
> But when I add it to kerenel 2.4.1 I could build that
> kernel, but I faced with kernel panic error when I
> boot
> system with new builded image. I us
On Mon, 8 Aug 2005, Alejandro Bonilla wrote:
Any idea how much hardware is out there that needs
>> ndiswrapper to work?
>>>
>>> No real idea but an educated guess: too much...
>>>
>>
>> I like the idea of blacklisting anything with a native driver (even a
>> partially working one), but leavi
On Tue, 9 Aug 2005, Jonathan Ellis wrote:
> (Posted a few days ago to c.os.l.networking; no replies there.)
>
> I seem to be running into a limit of 64 queued datagrams. This isn't a
> data buffer size; varying the size of the datagram makes no difference
> in the observed queue size. If more d
On Wed, 10 Aug 2005, sve wrote:
> Hi,
>
> kernel 2.6.12 on 2 way PIII. vmstat shows 0 intr/c due to overflow.
> cat /proc/interrupts shows a lot of rtc
> irq8 interrupts ~100 000 intr/c.
First, there is some bogus RTC driver installed. It has initialized
the interrupt system for LEVEL interr
Hello CRC Wizards,
I am trying to use ../linux-2.6.12/lib/crc_citt in a driver.
Basically, it doesn't return anything that closely resembles
the CCIT-16 CRC. I note that drivers that use it expect it
to return 0xf0b8 if it performs the CRC of something that
has the CRC appended (weird).
Does any
On Wed, 10 Aug 2005 [EMAIL PROTECTED] wrote:
>> Does anybody know what the CRC of a known string is supposed
>> to be? I have documentation that states that the CCITT CRC-16
>> of "123456789" is supposed to be 0xe5cc and "A" is supposed
>> to be 0x9479. The kernel one doesn't do this. In fact, I
On Thu, 11 Aug 2005, raja wrote:
> Hi,
> Is there any way to execute my own __init() instead of default
> __init() while running an executable.
> -
Sure you link your object file with your own instead of using
the default
gcc -c -o myprog.o myprog.c
as -o start.o start.S
On Thu, 11 Aug 2005, Bodo Eggert wrote:
> Ukil a <[EMAIL PROTECTED]> wrote:
>
>> Now I had the doubt that if the the syscall
>> implementation is very large will the scheduling and
>> other interrupts be blocked for the whole time till
>> the process returns from the ISR (because in an ISR by
>>
On Thu, 11 Aug 2005 [EMAIL PROTECTED] wrote:
>>> Using this bit-ordering, and omitting the x^16 term as is
>>> conventional (it's implicit in the implementation), the polynomials
>>> come out as:
>>> CRC-16: 0xa001
>>> CRC-CCITT: 0x8408
>>
>> Huh? That's the problem.
>>
>> X^16 + X^12 + X^5 + X^0
On Thu, 11 Aug 2005, Coywolf Qi Hunt wrote:
> On 8/11/05, Steven Rostedt <[EMAIL PROTECTED]> wrote:
>> On Thu, 2005-08-11 at 10:04 -0400, linux-os (Dick Johnson) wrote:
>>> Every interrupt software, or hardware, results in the branched
>>> procedure being execute
On Thu, 11 Aug 2005, Kyle Moffett wrote:
> On Aug 11, 2005, at 11:19:59, linux-os (Dick Johnson) wrote:
>> On Thu, 11 Aug 2005 [EMAIL PROTECTED] wrote:
>>> You're wrong in two ways:
>>> 1) You've got CRC-16 and CRC-CCITT mixed up, and
>>> 2) You&#
On Thu, 11 Aug 2005, Coywolf Qi Hunt wrote:
> On 8/12/05, Coywolf Qi Hunt <[EMAIL PROTECTED]> wrote:
>> On 8/12/05, Steven Rostedt <[EMAIL PROTECTED]> wrote:
>>> On Thu, 2005-08-11 at 11:51 -0400, Steven Rostedt wrote:
And booted it. The system is up and running, so I really don't thin
On Thu, 11 Aug 2005, Steven Rostedt wrote:
> On Thu, 2005-08-11 at 13:10 -0400, linux-os (Dick Johnson) wrote:
>> On Thu, 11 Aug 2005, Coywolf Qi Hunt wrote:
>
>>>>
>>>
>>> Also glibc support.
>>>
>>> --
>>> Coywolf Qi Hunt
>
On Thu, 11 Aug 2005, Steven Rostedt wrote:
> On Thu, 2005-08-11 at 13:26 -0400, Steven Rostedt wrote:
>
>> 288fb seems to use "int 0x80" and so do all the other system calls that
>> I inspected.
>
> I expect that if I had a Gentoo system that I compiled for my machine,
> this would be different.
On Thu, 11 Aug 2005, Steven Rostedt wrote:
> On Thu, 2005-08-11 at 13:46 -0400, linux-os (Dick Johnson) wrote:
>
>>
>> I was talking about the one who had the glibc support to use
>> the newer system-call entry (who's name can confuse).
>>
>> You are lo
On Sun, 14 Aug 2005, Tomko wrote:
> Hi all,
>
> as topic, do anyone know is there any difference between them ? by the
> way, console should only output but not input , but i could still see
> something when i type " cat /dev/console" in one terminal then type
> something at the tty where i open
On Tue, 16 Aug 2005, vamsi krishna wrote:
> Hello All,
>
> Sorry to interrupt you.
>
> I have been investigating a problem in which there has been a dramatic
> core size (complete program size) of a program running on a IA-64
> machine running kernel version 2.4.21-4.0.1 (A redhat advanced server
On Wed, 17 Aug 2005, Ondrej Zary wrote:
> My machine (Cyrix MII PR300 CPU, PCPartner TXB820DS board with i430TX
> chipset) exhibits a really weird problem:
> When I run a program that uses FPU, it sometimes crashes with "flaoting
> point exception" - for example, when playing MP3 files using any
On Tue, 26 Jul 2005, David Schwartz wrote:
>
>>> Also if they didn't modify the kernel, they don't have to give you
>>> source, they can just refer you to kernel.org.
>>
>> Wrong.
>>
>> http://www.fsf.org/licensing/licenses/gpl-faq.html#DistributeWithS
>> ourceOnInternet
>> [[[I want to distri
On Wed, 27 Jul 2005, Clayton Weaver wrote:
> Is not xor (^) typically compiled to a
> one cycle instruction regardless of
> requested optimization level? (May not
> always have been the case on every
> target architecture for != equality
> tests.)
> Clayton Weaver
> cgweav at fastmail dot fm
>
I
On Thu, 28 Jul 2005, dipankar das wrote:
> Hi,
> core file is not generated when kernel is crashed with
> Sysrq key ?
>
> What could be the reason for this ?
>
> Br,
> Dipankar.
It's not supposed to write any 'core' file. A 'core' file is
a dump of users' virtual memory. It has nothing to do
On Thu, 28 Jul 2005, Michael S. Tsirkin wrote:
>
> 7. Comments
> Don't use C99 // comments.
I don't think this is correct. In fact, I remember a discussion
where // was preferred for new code.
Cheers,
Dick Johnson
Penguin : Linux version 2.6.12 on an i686 machine (5537.79 BogoMips).
Warn
On Fri, 29 Jul 2005, Srinivas G. wrote:
> Dear All,
>
> We have developed a Block Device Driver to handle the flash media
> devices in Linux 2.6.x kernel. It is working fine. We are able to mount
> the SD cards that are formatted on Windows systems, but we unable mount
> the cards that are format
On Fri, 29 Jul 2005 [EMAIL PROTECTED] wrote:
>> OK, I guess when I get some time, I'll start testing all the i386 bitop
>> functions, comparing the asm with the gcc versions. Now could someone
>> explain to me what's wrong with testing hot cache code. Can one
>> instruction retrieve from memory
ala
>
>
>> -Original Message-
>> From: [EMAIL PROTECTED] [mailto:linux-kernel-
>> [EMAIL PROTECTED] On Behalf Of Lennart Sorensen
>> Sent: Friday, July 29, 2005 7:08 PM
>> To: linux-os (Dick Johnson)
>> Cc: Srinivas G.; linux-kernel-Mailing-list
>&
On Fri, 29 Jul 2005, linux-os (Dick Johnson) wrote:
>
>
> camera formatted info
> --
> Disk /dev/tfa0: 448 cylinders, 2 heads, 32 sectors/track
> Units = cylinders of 32768 bytes, blocks of 1024 bytes, counting from 0
>
>Device Boot Start End
ounted file systems
>
> I have gone through the mount.c code in order to understand where I am
> exactly failing.
> mount is failing in guess_fstype_and_mount() in do_mount_syscall after
> issuing the mount sys call.
> I am attaching the source code of mount functionality which ma
On Mon, 1 Aug 2005, Paulo Marques wrote:
> Jan Engelhardt wrote:
>>> So in order to calibrate it you need a readily available source of
>>> constant acceleration, preferably with a known value.
>>>
>>> Hint: -9.8 m/sec^2.
>>
>> Drop it out of the window? :)
>
> No, no. Constant gravity (like havi
On Mon, 1 Aug 2005, Vojtech Pavlik wrote:
> On Mon, Aug 01, 2005 at 08:55:53AM -0400, linux-os (Dick Johnson) wrote:
>
>>> Jan Engelhardt wrote:
>>>>> So in order to calibrate it you need a readily available source of
>>>>> constant acceleration, pr
On Tue, 2 Aug 2005, Folkert van Heusden wrote:
Maybe new desktop systems - but what about the tens of millions of old
systems that don't.
>>>
>>> Does anyone really give a shit about saving power on the desktop anyway?
>>> This is basically a laptop issue.
>>
>> Eh yes, very much.
>
> I
On Tue, 2 Aug 2005, Alejandro Bonilla wrote:
> Hi Guys/Gals,
>
> I watched some commercials and I almost puked when I looked at the
> Microsoft Get the Facts for Linux vs Windows Server stuff.
>
> They have a url which is http://www.microsoft.com/getthefacts
>
> Is this crap any close to re
On Wed, 3 Aug 2005, Steven Rostedt wrote:
> Hi all,
>
> I'm dealing with a problem where I want to know from __do_IRQ in
> kernel/irq/handle.c if the interrupt occurred while the process was in
> user space or kernel space. But the trick here is that it must work on
> all architectures.
>
> Does
On Wed, 3 Aug 2005, Chris Budd wrote:
> I have read
> http://www.tldp.org/HOWTO/Remote-Serial-Console-HOWTO/preparation-setport.html
> and http://www.linux-mips.org/archives/linux-mips/2004-04/msg00134.html
> and other items, but I still have not found the answers to the
> following questions:
>
On Thu, 4 Aug 2005, Andi Kleen wrote:
>
> I noticed that even 64bit architectures have a ridiculously low
> max limit on shared memory segments by default:
>
> #define SHMMAX 0x200 /* max shared seg size (bytes) */
> #define SHMMNI 4096 /* max num of segs
On Thu, 4 Aug 2005, Patrick McFarland wrote:
> On Wednesday 03 August 2005 05:49 pm, Nick Sillik wrote:
>> Michael Krufky wrote:
>>> [EMAIL PROTECTED] wrote:
>>>
>>> The email subject. "Re: **SPAM** [PATCH 3/3] usb gadget driver for
>>> MQ11xx graphics chip" ... Was that an accident, or did m
You are trying to do it backwards. You need to have your driver
use get_dma_pages() to acquire pages suitable for DMA. Your
driver then impliments mmap().
The user-mode application then mmaps() the dma-able pages into
its address-space. FYI, the pages may be from anywhere, some
archs can only DM
On Thu, 4 Aug 2005, Steven Rostedt wrote:
> On Thu, 2005-08-04 at 15:39 +0200, Clemens Koller wrote:
>>> You are trying to do it backwards. You need to have your driver
>>> use get_dma_pages() to acquire pages suitable for DMA. Your
>>> driver then impliments mmap().
>>
>> Okay, I have seen that,
On Wed, 17 Aug 2005, Pavel Machek wrote:
> Hi!
>
>>> Question came up before, albeit with a different phrasing. One
>>> possible approach to benefit from this ability would be to create a
>>> "forget" operation. When a filesystem already knows that some data is
>>> unneeded (after a truncate or
On Thu, 18 Aug 2005, [iso-8859-1] Guillermo López Alejos wrote:
> Hi,
>
> I have a piece of code which uses environment variables. I have been
> told that it is not going to work in kernel space because the concept
> of environment is not applicable inside the kernel.
>
> I belive that, but I nee
On Fri, 19 Aug 2005, Cezary Sliwa wrote:
>
> Just wanted to format a floppy disk with fdformat, no way:
>
> Aug 14 22:28:45 kwant kernel: floppy0: unexpected interrupt
> Aug 14 22:28:45 kwant kernel: floppy0: sensei repl[0]=80
> Aug 14 22:28:49 kwant kernel: floppy0: -- FDC reply errorfloppy0: un
On Sat, 20 Aug 2005, Robert Hancock wrote:
> Howard Chu wrote:
>> I'll note that we removed a number of the yield calls (that were in
>> OpenLDAP 2.2) for the 2.3 release, because I found that they were
>> redundant and causing unnecessary delays. My own test system is running
>> on a Linux 2.6.1
On Tue, 23 Aug 2005, manomugdha biswas wrote:
> Hi,
> I have written a kernel module and I can load (insmod)
> it without any error. But when i run my module it gets
> seg fault at interruptible_sleep_on_timeout();
>
> I have used this function in the following way:
>
> DECLARE_WAIT_QUEUE_HEAD(wq
On Mon, 22 Aug 2005, Robert Hancock wrote:
> linux-os (Dick Johnson) wrote:
>> I reported thet sched_yield() wasn't working (at least as expected)
>> back in March of 2004.
>>
>> for(;;)
>> sched_yield();
>>
>>
On Wed, 24 Aug 2005, moreau francis wrote:
> Hi,
>
> I'm currently trying to write a USB driver for Linux. The device must be
> configured by writing some values into the same register but I want to be
> sure that the writing order is respected by either the compiler and the cpu.
>
> For example,
On Wed, 24 Aug 2005, moreau francis wrote:
>
> --- "linux-os (Dick Johnson)" <[EMAIL PROTECTED]> a écrit :
>
>>
>> On Wed, 24 Aug 2005, moreau francis wrote:
>>
>>> Hi,
>>>
>>> I'm currently trying to write a USB driver f
On Wed, 24 Aug 2005, Oliver Neukum wrote:
> Am Mittwoch, 24. August 2005 20:22 schrieb linux-os (Dick Johnson):
>>> sorry but I'm not sure to understand you...Do you mean that the first write
>>> into reg_a pointer will be completed before the second write because
101 - 200 of 346 matches
Mail list logo
