[PATCH 0/4] x86/unwind: add some unwinder warnings

From: Josh Poimboeuf
Date: Wed Oct 26 2016 - 11:42:14 EST


Detect some stack error conditions in the unwinder and warn about them.

These warnings may help with debugging stack corruption issues.

Josh Poimboeuf (4):
x86/unwind: warn on bad frame pointer
x86/unwind: ensure stack grows down
x86/dumpstack: warn on stack recursion
x86/unwind: detect bad stack return address

arch/x86/kernel/dumpstack_32.c | 5 +++-
arch/x86/kernel/dumpstack_64.c | 5 +++-
arch/x86/kernel/unwind_frame.c | 56 +++++++++++++++++++++++++++++++++++++++---
3 files changed, 61 insertions(+), 5 deletions(-)

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2.7.4