diff options
| author | Thomas Gleixner | 2019-04-14 18:00:08 +0200 |
|---|---|---|
| committer | Borislav Petkov | 2019-04-17 15:41:48 +0200 |
| commit | 117ed45485413b1977bfc638c32bf5b01d53c62b (patch) | |
| tree | d50257ffb645531d5f7469dc9ecf2be9f48c0a10 /arch/x86/Kconfig | |
| parent | x86/irq/64: Remap the IRQ stack with guard pages (diff) | |
| download | kernel-qcow2-linux-117ed45485413b1977bfc638c32bf5b01d53c62b.tar.gz kernel-qcow2-linux-117ed45485413b1977bfc638c32bf5b01d53c62b.tar.xz kernel-qcow2-linux-117ed45485413b1977bfc638c32bf5b01d53c62b.zip | |
x86/irq/64: Remove stack overflow debug code
All stack types on x86 64-bit have guard pages now.
So there is no point in executing probabilistic overflow checks as the
guard pages are a accurate and reliable overflow prevention.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Nicolai Stange <nstange@suse.de>
Cc: Sean Christopherson <sean.j.christopherson@intel.com>
Cc: x86-ml <x86@kernel.org>
Link: https://lkml.kernel.org/r/20190414160146.466354762@linutronix.de
Diffstat (limited to 'arch/x86/Kconfig')
| -rw-r--r-- | arch/x86/Kconfig | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 5ad92419be19..fd06614b09a7 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -14,6 +14,7 @@ config X86_32 select ARCH_WANT_IPC_PARSE_VERSION select CLKSRC_I8253 select CLONE_BACKWARDS + select HAVE_DEBUG_STACKOVERFLOW select MODULES_USE_ELF_REL select OLD_SIGACTION @@ -138,7 +139,6 @@ config X86 select HAVE_COPY_THREAD_TLS select HAVE_C_RECORDMCOUNT select HAVE_DEBUG_KMEMLEAK - select HAVE_DEBUG_STACKOVERFLOW select HAVE_DMA_CONTIGUOUS select HAVE_DYNAMIC_FTRACE select HAVE_DYNAMIC_FTRACE_WITH_REGS |