linux-kernel.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Chris Rankin <rankincj@yahoo.com>
To: linux-kernel@vger.kernel.org
Subject: [2.6.23.1] PCI device locking up the computer when its module loads
Date: Mon, 22 Oct 2007 13:43:16 +0100 (BST)	[thread overview]
Message-ID: <511770.44451.qm@web52902.mail.re2.yahoo.com> (raw)

Hi,

I have a Netgear MA301 PLX wireless networking adapter which wants to use the hostap_plx driver in
Linux 2.6.23.1. This very same piece of hardware works fine in an old(!) P120 machine running
2.4.33, but makes the 2.6.23.1 kernel freeze as soon as the pci_enable_device() function is called
in prism2_plx_probe. What seems to happen is that IRQ 5 is signalled (the adapter's IRQ, according
to lspci), but the handler function hasn't been installed yet and so the kernel disables IRQ 5 and
locks up. However, the documentation that I have read implies that calling pci_enable_device()
before requesting the IRQ number to install the handler on is "The Right Thing to do", because
otherwise the IRQ number might change.

I have tried booting with "acpi=off nolapic" to no effect. The kernel is UP with 4K stacks and
PREEMPT.

Can anyone suggest what a suitable fix might be, please? Because I am currently thinking "CLI" and
"STI"!

Cheers,
Chris



      ___________________________________________________________ 
Want ideas for reducing your carbon footprint? Visit Yahoo! For Good  http://uk.promotions.yahoo.com/forgood/environment.html

             reply	other threads:[~2007-10-22 12:43 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-10-22 12:43 Chris Rankin [this message]
2007-10-29  7:36 ` [2.6.23.1] PCI device locking up the computer when its module loads Andrew Morton
2007-10-29 11:29   ` Dan Williams
2007-10-29 11:39     ` Chris Rankin
2007-12-08 18:39     ` Chris Rankin
2007-12-09 19:41     ` [2.6.23.9] hostap_plx locks up PC when reading PCI I/O memory Chris Rankin
2007-12-09 21:33       ` Arjan van de Ven
2007-12-09 22:06         ` Chris Rankin
2007-12-09 22:32           ` Arjan van de Ven
2007-12-10  3:20             ` Chris Rankin
2007-12-10 16:40             ` Chris Rankin
2007-12-09 22:06       ` Stefano Brivio
2007-12-09 22:13         ` Chris Rankin
2007-12-09 23:42           ` Stefano Brivio
2007-12-12  1:11       ` Andrew Morton
2007-12-12  8:56         ` Chris Rankin
2007-12-12 10:03           ` Andrew Morton
2007-12-12 10:22             ` Chris Rankin
2007-12-12 20:45             ` Chris Rankin
2007-12-28  1:39             ` Chris Rankin

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=511770.44451.qm@web52902.mail.re2.yahoo.com \
    --to=rankincj@yahoo.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).