Hi I have an OpenBSD 4.9 i386 stable (patched to aug 19 2011) running as virtual in KVM with VTd (PCI passthrough by using pci-stub) for two intel NICs. It's running flawless. The KVM host (fully patched Redhat 6.2) have two extra "Intel PRO/1000 MT (82574L)" that is given out to the OpenBSD virtual host. The OpenBSD virtual host sees and uses the physical nic:s directly. As said, it run flawless....
The working solution dmesg can be seen here.... http://www.incedo.eu/~sjoholmp/misc_internet_links/timer_problem_openbsd/dmes g-4.9i386-stable+patches-to-20110819_running_in_KVM.txt Now... I wanted to upgrade to OpenBSD 5.1. I installed a new virtual OpenBSD 5.1 i386 stable. I patched it to may 8 2012. When I run it, I cannot get any traffic through it and the console says what can be seen here in this png screenshot... http://www.incedo.eu/~sjoholmp/misc_internet_links/timer_problem_openbsd/KVM_ Screenshot_5.1_stable+patches-to-may-8-2012.png It says "em1: watchdog timeout -- resetting" more info... - mpbios is disabled on both OpenBSD installations as the KVM shutdown wont work on the virtual host otherwise... - Uses uniprocessor kernel as I have measured it gives better throughput than MP Any suggestions of where to look for a possible solution would be very much appreciated. Tnx in advance P-O