Hey Stephen, On Mon, May 20, 2013 at 02:24:31PM -0700, Stephen Hemminger wrote: > ioperm() inheritance across threads is different in KVM then when run > on physical hardware. The following program runs on physical hardware > but get SEGV under KVM. > > It appears that the I/O permission bits are not shared between threads > in the same way. Is this specific to SVM or do you see it on VMX too? My first guess would be that the KVM instruction emulator does not check to IO-permissions correctly, but that would affect VMX and SVM. Joerg -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html