Jan Kiszka wrote:[ Please keep the CCs intact. ] Benjamin Biegel wrote:Is this in my /boot/config-2.6.28.9 file? Here i see that CONFIG_PCI_MSI=y. Is this something set up when i compile the patched kernel? Or how do I run without the above setting?Reconfigure your kernel (make menuconfig/xconfig/<whatever>config) and rebuild it. Without MSI support, interrupts will fall back to IOAPIC handling which /may/ cause other problems (shared IRQ conflicts between Xenomai and Linux), but let's check this first.Please be sure to enable ACPI, except ACPI_PROCESSOR. Disabling ACPI may be the cause of some issues (I have been beaten again by this issue recently).