Re: [PATCH] 2.6.0-test4 Don't change BIOS allocated IRQs
From: Andrew de Quincey <hidden>
Date: 2003-09-17 08:08:33
On Wednesday 17 September 2003 02:02, Greg KH wrote:
On Wed, Sep 17, 2003 at 12:11:03AM +0100, Andrew de Quincey wrote:quoted
With the help of Chris Wright testing several failed patches, I've tracked down another ACPI IRQ problem. On many systems, the BIOS pre-allocates IRQs for certain PCI devices, providing a list of alternate possibilities as well. On some systems, changing the IRQ to one of those alternate possibilities works fine. On others however, it really isn't a good idea. As theres no way to tell which systems are good and bad in advance, this patch simply ensures that ACPI does not change an IRQ if the BIOS has pre-allocated it.Nice, the patch below, which Chris told me is from you, fixed my problems too. It is against 2.6.0-test5-bk3 and fixes bug number 1186 in the bugzilla.kernel.org database. Many thanks for this work, I really appreciate it.
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