On Sat, Jan 09, 2010 at 04:30:11PM -0300, Daniel Bareiro wrote: > On Friday, 08 January 2010 19:35:04 +0900, > Ryota Ozaki wrote: > > > Hi all, > > Hi, Ryota. > > > I've tried CPU hotplug with latest qemu-kvm.git code, > > and got segmentation fault. > > I'm also having this problem but with Linux 2.6.32.2 + qemu-kvm-0.12.1.1 > in the host: > > Jan 9 16:11:11 ubuntu kernel: [758479.480219] qemu-system-x86[29330]: > segfault at 90 ip 00007f5816bf3990 sp 00007fff9258fc88 error 4 in > libpthread-2.7.so[7f5816be8000+16000] > > I've guest with one cpu in which I try to add one more. For this I > execute the following in qemu monitor and here it is where I got > segmentation fault: > > (qemu) cpu_set 1 online > Connection closed by foreign host. > > > I'm not sure if the procedure that I'm following is the correct one. I > tried as much without using additional parameters when boots guest like > using -smp 1,maxcpus=2, but I reach the same result. > > The Kernel of guest has checked the "Support for hot-pluggable CPUs" > option, in case it is necessary. > CPU host-plug is not supported on qemu-kvm-0.12. It shouldn't segfault obviously, but ACPI code that handles CPU host-plug was not ported to SeaBIOS when it replaces BOCH BIOS. -- Gleb. -- 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
