tree fea73a527507df8c35ba1a2c0542a61dab4349e9
parent 50afc33a90e710c02d9bbf2f3673936365f0e690
author Konstantin Khlebnikov <k.khlebnikov@samsung.com> 1386250210 +0000
committer Catalin Marinas <catalin.marinas@arm.com> 1387474989 +0000

ARM64: check stack pointer in get_wchan

get_wchan() is lockless. Task may wakeup at any time and change its own stack,
thus each next stack frame may be overwritten and filled with random stuff.

Signed-off-by: Konstantin Khlebnikov <k.khlebnikov@samsung.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>