Hi...
What is a "Software Interrupt"? I was going thru the LDD 3 and
stumbled upon this. There is an
instance while explaining spin_lock_bh() function that the author
mentions that this only disables the "Software Interrupts"( LDD 3,page
number 119). In the immediately next paragraph, the
Thanks. That explained a lot.
Regards,,
Aravind.
"Dovie'andi se tovya sagain"
-Mat Cauthon (WoT).
-Original Message-
From: Peter Teoh [mailto:[EMAIL PROTECTED]
Sent: Friday, October 26, 2007 6:54 AM
To: Thippeswamy, Aravind
Cc: kernelnewbies@nl.linux.org
Subject
On 10/25/07, Manish Katiyar <[EMAIL PROTECTED]> wrote:
> Hi,
>
> As far as I understand, software interrupts are implemented using the
> "int" instruction. They are normally used to execute system calls
> where the system call generates a software interrupt ie.. "int 0x80h"
> which is handled by th
On 10/25/07, Thippeswamy, Aravind <[EMAIL PROTECTED]> wrote:
>
>
> Hi,
> What is a "Software Interrupt"? I was going thru the LDD 3 and
> stumbled upon this. There is an
> instance while explaining spin_lock_bh() function that the author
Have not got a chance to read what u are referring t
>
> -Original Message-
> From: Tony Mouawad [mailto:[EMAIL PROTECTED]
> Sent: Thursday, October 25, 2007 6:19 PM
> To: Thippeswamy, Aravind
> Cc: kernelnewbies@nl.linux.org
> Subject: Re: What is a "Software Interrupt"?
>
> "Software Interrupts"
"Software Interrupts" within the context of tasklets can also be
called "Deferrable Functions".
Generally how it works is that a device such as your ethernet card
will trigger a "hardware interrupt" saying that there is data
received. You will want to service hardware interrupts as quickly as
pos
Hi,
As far as I understand, software interrupts are implemented using the
"int" instruction. They are normally used to execute system calls
where the system call generates a software interrupt ie.. "int 0x80h"
which is handled by the kernel and thus the program switches from user
mode to kernel mo
ROTECTED]
Sent: Thursday, October 25, 2007 6:19 PM
To: Thippeswamy, Aravind
Cc: kernelnewbies@nl.linux.org
Subject: Re: What is a "Software Interrupt"?
"Software Interrupts" within the context of tasklets can also be
called "Deferrable Functions".
Generally how it
I believe the book was referring to "softirqs", rather than "software
interrupts". The latter, also called "Programmed Exceptions", are indeed
triggered by an int instruction. The former, however, are a
Linux-specific mechanism to handle interrupt bottom-halves, i.e., tasks
that should be perfo
Hi!
On Thursday 25 October 2007, Thippeswamy, Aravind wrote:
> Hi,
> What is a "Software Interrupt"? I was going thru the LDD 3 and
> stumbled upon this. There is an
> instance while explaining spin_lock_bh() function that the author
> mentions that this only disables the "Software Interrup
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