My Concern is towards RT IRQ's;
Does RTLinux provides any Interrupt Levels/Priorities ?
If Yes, then will a high priority Interrupt preempt over
a low priority interrupt before the latter's completion ?
[May be Bottom Half's being queued in this scenario]

Can somebody enlighten more on these ?

- Tom 



-----Original Message-----
From: Dresner, Norman A. [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, March 20, 2002 7:10 PM
To: '[EMAIL PROTECTED]'
Subject: RE: [rtl] Nested Interrupt Handlers ?


Well, Victor or one of his colleagues can answer this question better than I
can, but AFAIK, the answer is a qualified "Yes, but..."

        The largest part of the "BUT" is that it will hold any normal Linux
interrupts until after the last real-time task has ceded control of the CPU
back to its scheduler.  Other than that, I believe -- and it's only a belief
because I've never tried it -- that it is possible to nest RT IRQ's.

        Norm

-----Original Message-----
From: Sudhir S [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, March 20, 2002 1:21 AM
To: [EMAIL PROTECTED]
Subject: [rtl] Nested Interrupt Handlers ?



Does RTLinux allows further interrupts to occur
even when servicing an existing interrupt ?

- Tom

--
Ageing is Inevitable; Maturing is Optional 
-- [rtl] ---
To unsubscribe:
echo "unsubscribe rtl" | mail [EMAIL PROTECTED] OR
echo "unsubscribe rtl <Your_email>" | mail [EMAIL PROTECTED]
--
For more information on Real-Time Linux see:
http://www.rtlinux.org/
-- [rtl] ---
To unsubscribe:
echo "unsubscribe rtl" | mail [EMAIL PROTECTED] OR
echo "unsubscribe rtl <Your_email>" | mail [EMAIL PROTECTED]
--
For more information on Real-Time Linux see:
http://www.rtlinux.org/
-- [rtl] ---
To unsubscribe:
echo "unsubscribe rtl" | mail [EMAIL PROTECTED] OR
echo "unsubscribe rtl <Your_email>" | mail [EMAIL PROTECTED]
--
For more information on Real-Time Linux see:
http://www.rtlinux.org/

Reply via email to