From: zertsekel@gmail.com (Kosta Zertsekel)
To: kernelnewbies@lists.kernelnewbies.org
Subject: About interrupt handler
Date: Fri, 24 Feb 2012 11:19:36 +0200 [thread overview]
Message-ID: <CADxo8WJ4+8mXGPXkZfeKbZORtimDn2DL_N17skB6NVFZXdbmYA@mail.gmail.com> (raw)
In-Reply-To: <CABi1daENZ-3ndF=kic6A3fu8bAmJP20XnpPuVMXLLihWQeJhdg@mail.gmail.com>
>> I'm begin to learn the Kernel and i'm reading <<Linux kernel
>> development>>.It says "This is an important point, always keep in mind that
>> all interrupt handler has interrupted other code(possibly even another
>> interrupt handler on a different line)".What i am not able to understand is
>> how a interrupt handler be interrupted ? DID NOT it uninterrupted?
>
> It depends on the architecture and the interrupt controller being
> used, and the driver code itself.
>
> Normally, when an interrupt fires, that particular interrupt will be
> masked and your own handler won't interrupt itself, but you may very
> well be interrupted by other interrupts.
Can you please point out some code for explanation?
--- KostaZ
next prev parent reply other threads:[~2012-02-24 9:19 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-02-22 15:59 About interrupt handler cheneydeng
2012-02-22 20:50 ` Dave Hylands
2012-02-24 9:19 ` Kosta Zertsekel [this message]
2012-02-24 21:08 ` Dave Hylands
2012-02-24 21:18 ` Dave Hylands
2012-02-26 12:11 ` Kosta Zertsekel
2012-02-26 17:53 ` Dave Hylands
-- strict thread matches above, loose matches on Subject: below --
2012-02-23 10:46 cheneydeng
2012-02-22 15:38 cheneydeng
2012-02-23 10:07 ` Zhengwang Ruan
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