On Sun, Jan 10, 2010 at 3:39 PM, Gleb Natapov <gleb@xxxxxxxxxx> wrote: > 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, I see. Anyway I think we need some workaround to avoid segfault. > but ACPI code that handles CPU host-plug was not ported to > SeaBIOS when it replaces BOCH BIOS. Yeah, I confirmed it during memory hotplug work... So I'd like to know when cpu hotplug comes back? I didn't see it in qemu-0.13 feature requests. ozaki-r > > -- > 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 > -- 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
