the active tasks in the kernel's per-cpu crash_notes, there is an
initialization-time warning message indicating "could not retrieve
crash_notes". It has been changed to a more meaningful warning
message indicating "cannot retrieve registers for active tasks".
(anderson@redhat.com)
CONFIG_ARM_LPAE. The patch implements the virtual-to-physical
address translation of 64-bit PTEs used by ARM LPAE kernels.
(sdu.liu@huawei.com, weijitao@huawei.com)
cpus offline themselves during a kdump procedure. This causes an
invalid cpu count determination during crash session initialization
from an ARM vmcore. The patch utilizes the cpu count found in the
cpu_active_map if it is greater than the count in the cpu_online_map.
In addition, the maximum NR_CPUS value for the ARM architecture has
been raised from 4 to 32.
(sdu.liu@huawei.com)
