Messages in this thread | | | Date | Sun, 20 Jul 2008 17:44:56 +0200 | From | Bernhard Walle <> | Subject | Re: linux-next: Tree for July 18: warning at kernel/lockdep.c:2068 trace_hardirqs_on_caller |
| |
* Bernhard Walle <bwalle@suse.de> [2008-07-20 15:03]: > > Because I didn't know that interface. And because I don't see that > interface on my two systems that I just checked. i386 and x86-64. What > do I have to do to enable that interface?
That interface depends on CONFIG_MEMORY_HOTPLUG. But given to that dependency list,
128 config MEMORY_HOTPLUG 129 bool "Allow for memory hot-add" 130 depends on SPARSEMEM || X86_64_ACPI_NUMA 131 depends on HOTPLUG && !HIBERNATION && ARCH_ENABLE_MEMORY_HOTPLUG 132 depends on (IA64 || X86 || PPC64 || SUPERH || S390)
that interface is off on *many* systems (i386, x86_64), so we can't rely on that interface in kexec. I think on POWER it's much more common than on PC architectures.
Bernhard -- Bernhard Walle, SUSE LINUX Products GmbH, Architecture Development
| |