From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: Al Niessner <Al.Niessner@jpl.nasa.gov>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: IRQ Disabling
Date: Tue, 26 Apr 2005 13:05:03 +0100 [thread overview]
Message-ID: <1114517101.18330.73.camel@localhost.localdomain> (raw)
In-Reply-To: <1114453001.19173.47.camel@morte.jpl.nasa.gov>
On Llu, 2005-04-25 at 19:16, Al Niessner wrote:
> 1) Write some general handler that resets the IRQ and nothing else and
> install it as the default handler instead of the current one that is
> disabling the IRQ?
>
> 2) Is there critical information in the report from /var/log/messages
> that I am missing or do not recognize that would allow me to locate and
> identify the rouge hardware that is generating the anomalous interrupt?
>
> 3) Some other option that I am totally unaware of?
poll ?
The -ac kernel btw has code that handles unidentified IRQs by trying all
the IRQ handlers that have been registered and in "irqpoll" mode polling
them each timer tick to handle lost IRQs. In the case where the problem
is simply bad plumbing it works rather well for rescuing otherwise
unusable laptops
next prev parent reply other threads:[~2005-04-26 13:09 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-04-25 18:16 IRQ Disabling Al Niessner
2005-04-26 12:05 ` Alan Cox [this message]
[not found] <3Xgvq-2Vn-9@gated-at.bofh.it>
2005-04-26 2:36 ` Robert Hancock
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=1114517101.18330.73.camel@localhost.localdomain \
--to=alan@lxorguk.ukuu.org.uk \
--cc=Al.Niessner@jpl.nasa.gov \
--cc=linux-kernel@vger.kernel.org \
/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.