Hi Heiner, I was able to resurrect my Sony Vaio GR214EP laptop to test this patch on an Intel 82801CAM (ICH3-M) chipset. And as I suspected, it does not work. I get the following error in the kernel log: [13563.411101] i801_smbus 0000:00:1f.3: SMBus using PCI interrupt [13565.434712] irq 9: nobody cared (try booting with the "irqpoll" option) [13565.434728] Pid: 321, comm: udevd Tainted: G O 3.4.63-2.44-default #1 [13565.434734] Call Trace: [13565.434773] [<c0205349>] try_stack_unwind+0x199/0x1b0 [13565.434793] [<c02041c7>] dump_trace+0x47/0xf0 [13565.434808] [<c02053ab>] show_trace_log_lvl+0x4b/0x60 [13565.434820] [<c02053d8>] show_trace+0x18/0x20 [13565.434837] [<c0682e81>] dump_stack+0x6d/0x72 [13565.434855] [<c02adad1>] __report_bad_irq+0x21/0xc0 [13565.434870] [<c02adef1>] note_interrupt+0x181/0x1d0 [13565.434887] [<c02abe9e>] handle_irq_event_percpu+0x9e/0x1d0 [13565.434901] [<c02abffe>] handle_irq_event+0x2e/0x50 [13565.434915] [<c02ae3e6>] handle_level_irq+0x56/0x90 [13565.434928] [<c0204168>] handle_irq+0x88/0xa0 [13565.434939] handlers: [13565.434949] [<c04bbf6c>] acpi_irq [13565.435027] [<e0baad00>] usb_hcd_irq [13565.435054] [<e0baad00>] usb_hcd_irq [13565.435079] [<e0baad00>] usb_hcd_irq [13565.435193] [<e0d6fb80>] radeon_driver_irq_handler_kms [13565.435206] [<e0af5c60>] yenta_interrupt [13565.435214] [<e0af5c60>] yenta_interrupt [13565.435227] [<e0b514c0>] irq_handler [13565.435238] [<e0aeec90>] snd_intel8x0m_interrupt [13565.435251] [<e0c514a0>] snd_intel8x0_interrupt [13565.435264] [<e0ab4060>] e100_intr [13565.435278] [<e09465d0>] i801_isr [13565.435283] Disabling IRQ #9 [13565.437114] i801_smbus 0000:00:1f.3: Transaction timeout [13565.437125] i801_smbus 0000:00:1f.3: Terminating the current operation [13565.439189] i801_smbus 0000:00:1f.3: Failed terminating the transaction If it matters, and as seen in the list of handlers above, IRQ9 is heavily shared on this laptop (ACPI, USB, graphics, PCMCIA, sound, network and SMBus). -- Jean Delvare SUSE L3 Support
