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From: Chris Rankin <rankincj@yahoo.com>
To: Dan Williams <dcbw@redhat.com>,
	Andrew Morton <akpm@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org, linux-wireless@vger.kernel.org
Subject: Re: [2.6.23.1] PCI device locking up the computer when its module loads
Date: Mon, 29 Oct 2007 11:39:05 +0000 (GMT)	[thread overview]
Message-ID: <343473.92638.qm@web52909.mail.re2.yahoo.com> (raw)
In-Reply-To: <1193657365.19938.17.camel@localhost.localdomain>

--- Dan Williams <dcbw@redhat.com> wrote:
> This same sort of problem was just fixed for iwl4965.  The fix for that
> was to disable device interrupts until everything the driver needed
> (including interrupt handler) was set up and ready before re-enabling
> them, I think.  See the thread "iwl4965 detection problem" and the mail
> from Jes Sorensen on 2007-10-26.

The problem with this case is that pci_enable_device() is the very first thing that the driver
calls, but (as I understand it) I have no hope of sending commands to the device until this
function returns. This is a "catch 22" situation from my perspective, because how am I supposed to
know which device interrupt to disable if I can't call pci_enable_device()?

Does the 2.4 kernel survive because IRQs are disabled globally during module_init() or something?

Cheers,
Chris



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  reply	other threads:[~2007-10-29 11:39 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-10-22 12:43 [2.6.23.1] PCI device locking up the computer when its module loads Chris Rankin
2007-10-29  7:36 ` Andrew Morton
2007-10-29 11:29   ` Dan Williams
2007-10-29 11:39     ` Chris Rankin [this message]
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

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