Hi guys, I've recently updated my machine to Linux kernel 3.5. Ever since then, I experience frequent kernel panics in the I/O system. The output from dmesg shows the following warning, which earlier version of the kernel did not show: ACPI 0x0000000000000b00-0x0000000000000b07 SystemIO conflicts with Region \_SB_.PCI0.SBRG.ASOC.SMRG 1 (20120320/utaddress-251) I've asked Google for help how it might be possible to remedy that issue, but I couldn't find anything, so I'm reporting this problem here, hoping some guru can give me a hint. Attached to this e-mail are: - the output from dmesg, - the output from acpidump, - the contents of my /proc/cpuinfo file, and - the output from lspci -vvv. I'd very much appreciate any help! Please let me know if there is some information missing. Take care, Peter