On 6/6/07, Jens Axboe <[EMAIL PROTECTED]> wrote:
On Wed, Jun 06 2007, Raz Ben-Jehuda(caro) wrote:
> Hello
>
> I am running into some problems with kmap_atomic in my driver.
> My driver copies some pages coming from
> user space to "kernel space kmalloc'ed memory&q
Hello
I am running into some problems with kmap_atomic in my driver.
My driver copies some pages coming from
user space to "kernel space kmalloc'ed memory".
I had this code running from 2.6.5 to 2.6.17 without any problems.
I have upgraded to 2.6.20.xx and this code fails to kmap_atomic.
I am run
Hello Robert.
I have noticed that you are the writer of the hpet driver in linux.
I have been running the test tool provided in
linux/Documenration/hpet.txt on an hp dl380. It runs for few seconds
and then the hpet timer clock stopped interrupting ( I looked at
/proc/interrupts). It happens faste
I have a process who allocates as much as possible of RAM
in 4 G ram 32bit machine. This buffer is never released.
Questions:
1. Is it better allocates with many 1MB buffers or allocate it in with
one a big valloc ?
2. I will be needing to make this memory allocation in many other
machines , s
On 1/9/07, Erez Zadok <[EMAIL PROTECTED]> wrote:
In message <[EMAIL PROTECTED]>, Christoph Hellwig writes:
> On Mon, Jan 08, 2007 at 07:03:35PM -0500, Erez Zadok wrote:
> > However, I must caution that a file system like ecryptfs is very different
> > from Unionfs, the latter being a fan-out file
Hello
I am trying to implement a (soft) real time kthread on a dual cpu
machine. Basic design is very simple, the kthread binds
to cpu 1 sets itself to a high real time priority and never releases this
cpu. Whenever it needs to wait a little I use the assembler pause command.
The operating syste
this is against 2.6.19-git17
hope this correct
raz
On 12/11/06, Jens Axboe <[EMAIL PROTECTED]> wrote:
On Mon, Dec 11 2006, Raz Ben-Jehuda(caro) wrote:
> On 12/11/06, Jens Axboe <[EMAIL PROTECTED]> wrote:
> >On Sun, Dec 10 2006, [EMAIL PROTECTED] wrote:
> >> From:
On 12/5/06, Arjan van de Ven <[EMAIL PROTECTED]> wrote:
On Tue, 2006-12-05 at 18:30 +0200, Raz Ben-Jehuda(caro) wrote:
> hello.
>
> I have a dual cpu AMD machine, I noticed that
> only one timer0 is working in /proc/interrutps.
> setting proc/irq/0/smp_affinity to 3 does
hello.
I have a dual cpu AMD machine, I noticed that
only one timer0 is working in /proc/interrutps.
setting proc/irq/0/smp_affinity to 3 does make
any difference.
setting smp_affinity to 2 does move the inetrrupts.
the above applys with or withour irq_balancer .
thank you
--
Raz
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On 12/4/06, Phillip Susi <[EMAIL PROTECTED]> wrote:
Raz Ben-Jehuda(caro) wrote:
> Who returns EGAIN to whom ? I am not sure i understand what you mean
> here.
If the queue is full then io_sumbit() should return EAGAIN or some other
error to indicate that the queue is full, but
On 12/1/06, Jens Axboe <[EMAIL PROTECTED]> wrote:
On Fri, Dec 01 2006, Raz Ben-Jehuda(caro) wrote:
> Jens suparna hello
>
> I have managed to understand why io_submit is sometimes very slow.
> It is because the device is plugged once too many io's are being sent.
> I ha
Jens suparna hello
I have managed to understand why io_submit is sometimes very slow.
It is because the device is plugged once too many io's are being sent.
I have conducted a simple test with nr_request to default value of 128
and and 256.
and it proved to be correct.
I would truely appreciate
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