Almost 7 hours and the uniprocessor case is still chugging along. david
Avi Kivity wrote: > david ahern wrote: >> david ahern wrote: >> >>> Avi Kivity wrote: >>> >>>> - the in-kernel ioapic is buggy and needs the extra kicking the >>>> optimization prevents. Can be checked by re-adding the optimization to >>>> kvm_ioapic_set_irq() (keeping it removed in qemu). If it works, the >>>> problem is in userspace. If it fails, the problem is in the kernel. >>>> >>>> Something like >>>> >>>> static int old_level[16]; >>>> >>>> if (level == old_level[irq]) >>>> return; >>>> old_level[irq] = level; >>>> >>>> >> With the "if (!change) return;" taken out of pci_set_irq() and the above code >> added to kvm_ioapic_set_irq() networking froze. >> > > That points the finger at the kernel ioapic. > > I saw from the /proc/interrupts dump that it's an smp guest. Does it > freeze on uniprocessor as well? Maybe it's bad locking in the kernel. > ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ kvm-devel mailing list kvm-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/kvm-devel
