tree e898e20dd046957a1598da24802c1d8630f21146
parent 35f9cd083b350ad4eb3b5f159c7738fa9ddff40a
author Johannes Weiner <jw@emlix.com> 1236180089 +0100
committer Chris Zankel <chris@zankel.net> 1238740737 -0700

xtensa: use correct stack pointer for stack traces

Right now, the xtensa stacktrace code reads the _current_ kernel stack
pointer if nothing is supplied.  With debugging facilities like sysrq
this means that the backtrace of the sysrq-handler is printed instead
of a trace of the given task's stack.

When no stack pointer is specified in show_trace() and show_stack(),
use the stack pointer that comes with the handed in task descriptor to
make stack traces more useful.

Signed-off-by: Johannes Weiner <jw@emlix.com>
Signed-off-by: Chris Zankel <chris@zankel.net>