http://bugzilla.kernel.org/show_bug.cgi?id=2874
------- Comment #59 from [EMAIL PROTECTED] 2007-12-17 22:55 ------- Hi, Sergio The patch in comment #29 can make the system work.But the root problem of this bug can't be fixed by the patch in comment #29. In fact the boot option of acpi_no_irqbalance is equal to the patch in comment #29 and both can make the system work. The problem in the comment #58 is explained from the following two views: a. The LINK device is programmed into default IRQ number by BIOS. When the LINK device driver is loaded, the _DIS method is called to disable the LINK device. When a LINK device is used by some PCI devices, it will be reprogrammed. In case of ACPI irq balance the OS will select the IRQ number according to irq penalty table. Maybe it will caused that the result IRQ number is different with the default IRQ number. If LINK device is hardrouted , the problem appears. If no irq balanced is used, the LINK device will be reprogrammed by the default IRQ number and there will be no problem. If the LINK device is hardrouted, maybe it will be better that no irq balance is used. (In current kernel the IRQ balance is the default mode). b. The source pointed to in comment #58 to has another purpose. If one LINK device is not programmed by BIOS(it means that Link->irq.active is zero) and used by some PCI devices, OS should select a proper IRQ number for this LINK device according to the irq penalty tables. Otherwise there will another problem(some irq is shared by too many PCI devices). So I think that the source code can't be deleted. Thanks. -- Configure bugmail: http://bugzilla.kernel.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug, or are watching someone who is. ------------------------------------------------------------------------- SF.Net email is sponsored by: Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://ad.doubleclick.net/clk;164216239;13503038;w?http://sf.net/marketplace _______________________________________________ acpi-bugzilla mailing list acpi-bugzilla@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/acpi-bugzilla
