From: Jarek Poplawski <jarkao2@o2.pl>
To: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@elte.hu>, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] genirq: handle_fasteoi_irq vs IRQ_INPROGRESS && IRQ_DISABLED
Date: Tue, 21 Aug 2007 12:35:27 +0200 [thread overview]
Message-ID: <20070821103527.GC1778@ff.dom.local> (raw)
In-Reply-To: <20070821091700.GB1778@ff.dom.local>
On Tue, Aug 21, 2007 at 11:17:00AM +0200, Jarek Poplawski wrote:
>
> Hi,
>
> I've still some doubts about these irq handlers and I hope somebody
> could explain some of these (despite my problems with earlier such
> explanations, sorry...):
>
> 1. According to some well-known Intel's manual (vol.3A page 8-41)
> lapic can interrupt irq handler dispatching higher-priority irq; it
> seems, such an event is possible during handle_IRQ_event, and would
> be treated by "common" handlers with IRQ_INPROGRESS; but:
OOPS!!! Of course, I got this wrong again: this IRQ_INPROGRESS is
for another irq... Sorry!
But, then, it seems such IRQ_INPROGRESS shouldn't be possible at all
with properly working lapic? Or do I miss something...
Jarek P.
next prev parent reply other threads:[~2007-08-21 10:34 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-08-21 9:17 [PATCH] genirq: handle_fasteoi_irq vs IRQ_INPROGRESS && IRQ_DISABLED Jarek Poplawski
2007-08-21 10:35 ` Jarek Poplawski [this message]
2007-08-21 11:21 ` Jarek Poplawski
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20070821103527.GC1778@ff.dom.local \
--to=jarkao2@o2.pl \
--cc=linux-kernel@vger.kernel.org \
--cc=mingo@elte.hu \
--cc=tglx@linutronix.de \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.