tree 83c6b8a61a1c8a8795504217518300417c49c6a6
parent df4939350b345ebb44937902827aa75b8ad4998c
author Jason Wessel <jason.wessel@windriver.com> 1281018145 -0500
committer Jason Wessel <jason.wessel@windriver.com> 1281018145 -0500

debug_core,kdb: fix crash when arch does not have single step

When an arch such as mips and microblaze does not implement either HW
or software single stepping the debug core should re-enter kdb.  The
kdb code will properly ignore the single step operation.  Attempting
to single step the kernel without software or hardware support causes
unpredictable kernel crashes.

Signed-off-by: Jason Wessel <jason.wessel@windriver.com>