linux-next: Tree for July 18: warning at kernel/lockdep.c:2068 trace_hardirqs_on_caller

Bernhard Walle bwalle at
Mon Jul 21 09:47:33 EDT 2008

* Vivek Goyal [2008-07-21 09:39]:
> But the point is, if /sys/devices/system/memory also represents all
> the physical memory present in the system then it might be not be
> justified to create another similar interface. (Until and unless there
> is something unique about /sys/firmware/memmap).

But I don't see anything like a physical address there:

  -r--r--r-- 1 root root 4096 2008-07-21 15:45 phys_device
  -r--r--r-- 1 root root 4096 2008-07-21 15:45 phys_index
  -rw-r--r-- 1 root root 4096 2008-07-21 15:45 state

(on a PPC64 machine where SUSE kernel has that interface enabled by

Bernhard Walle, SUSE LINUX Products GmbH, Architecture Development

More information about the kexec mailing list