I had always gotten strange wedges when hot plugging cpus on Niagara boxes via the hypervisor, and I think the following bug spotted by Paul McKenney finally nails it. Please pull, thanks a lot. The following changes since commit 4d084617fb0d025c42c242362d1f27d337e2d407: Paul E. McKenney (1): sparc64: Prevent sparc64 from invoking irq handlers on offline CPUs are available in the git repository at: master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6.git master David S. Miller (1): sparc64: Disable timer interrupts in fixup_irqs(). arch/sparc64/kernel/irq.c | 2 ++ 1 files changed, 2 insertions(+), 0 deletions(-) -- To unsubscribe from this list: send the line "unsubscribe sparclinux" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html