From: Jeff Garzik <jeff@garzik.org>
To: Mikael Pettersson <mikpe@it.uu.se>
Cc: alan@redhat.com, linux-ide@vger.kernel.org
Subject: Re: [PATCH 2.6.21-rc2] pata_legacy: fix io/irq mismatch
Date: Tue, 06 Mar 2007 04:05:45 -0500 [thread overview]
Message-ID: <45ED2EE9.1070809@garzik.org> (raw)
In-Reply-To: <200703031957.l23JviQQ005254@harpo.it.uu.se>
Mikael Pettersson wrote:
> pata_legacy fails to detect the disk on my old ISA/VLB 486:
> it starts to probe io=0x1f0 ctr=0x3f6 irq=15, complains
> loudly about IDENTIFYs timing out, and finally fails.
> (Sorry I couldn't capture the kernel's boot messages.)
>
> It turns out that the driver's mapping from io to irq in
> legacy_irq[] is wrong: index 0 for io=0x1f0 has irq=15 but
> should have irq=14, and index 1 for io=0x170 has irq=14 but
> should have irq=15. This is confirmed by a comparison with
> include/asm-i386/ide.h:ide_default_irq().
>
> This patch swaps the first two elements in legacy_irq[],
> which makes pata_legacy work on my 486.
>
> Signed-off-by: Mikael Pettersson <mikpe@it.uu.se>
applied
prev parent reply other threads:[~2007-03-06 9:05 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-03-03 19:57 [PATCH 2.6.21-rc2] pata_legacy: fix io/irq mismatch Mikael Pettersson
2007-03-03 22:59 ` Alan Cox
2007-03-06 9:05 ` Jeff Garzik [this message]
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=45ED2EE9.1070809@garzik.org \
--to=jeff@garzik.org \
--cc=alan@redhat.com \
--cc=linux-ide@vger.kernel.org \
--cc=mikpe@it.uu.se \
/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).