From: Chuck Ebbert <76306.1226@compuserve.com>
To: Andrew Morton <akpm@digeo.com>
Cc: linux-kernel@vger.kernel.org, johnstul@us.ibm.com
Subject: Re: tg3 - irq #: nobody cared!
Date: Wed, 7 May 2003 07:57:08 -0400 [thread overview]
Message-ID: <200305070759_MC3-1-37C0-ECE3@compuserve.com> (raw)
Andrew Morton wrote:
>>
>> Definitely not the right fix. If the hardware status struct
>> indicates no event is pending, then we return 0 since we
>> didn't "handle" the interrupt.
>
> This is about the fifth report of unhandled interrupts. Against the fifth
> driver which looks to be correct.
>
> So I'd be suspecting the scenario which Alan outlined: the IRQ handler looped
> around, scooped up the interrupt source before the APIC delivered the IRQ.
>
> I'm working on the actual detection code - it tries to filter out the false
> positives.
On thinking about it further, I don't think you will ever be able to write
such code -- whether "interrupt received but no pending work" is an error
or not is a private matter between the driver and its device. All you can
really ask the driver for is "was that interrupt generated by your device?"
next reply other threads:[~2003-05-07 11:47 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-05-07 11:57 Chuck Ebbert [this message]
-- strict thread matches above, loose matches on Subject: below --
2003-05-06 22:03 tg3 - irq #: nobody cared! john stultz
2003-05-07 4:58 ` David S. Miller
2003-05-07 5:08 ` Andrew Morton
2003-05-07 4:03 ` David S. Miller
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=200305070759_MC3-1-37C0-ECE3@compuserve.com \
--to=76306.1226@compuserve.com \
--cc=akpm@digeo.com \
--cc=johnstul@us.ibm.com \
--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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).