Hi, I originally reported this bug to the Debian BTS: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=441232 There I was told to talk directly to upstream. I am pasting the original bug report below. The referenced text files can be found at the mentioned BTS URL. Additionally, I have just tried Linux 2.6.23-rc5 and am attaching the corresponding dmesg output. Thanks in advance for any help, Jan With recent kernels my on-board network adapter does not work any more. This is a Marvell Gigabit Ethernet Controller on an Asus P5B-V mainboard. This is the same bug as #428452 reported earlier against linux-image-2.6.21-1-amd64. (Sorry for the duplicate, I didn't know how to extend the old report to newer kernel versions.) In fact, the network adapter hasn't been working since then, i.e. the last working kernel image was 2.6.20-1-amd64 (which I am using now). The following images 2.6.2[12]-[12]-amd64 have all exposed the same problem. The key problem seem to be the following lines in dmesg: ------------------------------------------------------------------------ ACPI: PCI Interrupt 0000:04:04.0[A] -> GSI 19 (level, low) -> IRQ 19 PCI: Unable to reserve mem region #1:4000@ff9f8000 for device 0000:04:04.0 skge 0000:04:04.0: cannot obtain PCI resources ACPI: PCI interrupt for device 0000:04:04.0 disabled skge: probe of 0000:04:04.0 failed with error -16 ------------------------------------------------------------------------ I'm attaching full 'dmesg' output from working (2.6.20-1) and broken (2.6.22-2) kernel versions as well as the output of 'lspci -vvv' on the most recent kernel. If you need any other information or I can try something please let me know.