From: "Jason A. Donenfeld" <Jason@zx2c4.com>
To: Arnd Bergmann <arnd@arndb.de>,
Ard Biesheuvel <ard.biesheuvel@linaro.org>,
LKML <linux-kernel@vger.kernel.org>,
Andrew Lutomirski <luto@kernel.org>
Cc: "Jason A. Donenfeld" <Jason@zx2c4.com>
Subject: [PATCH] framewarn: expand KASAN_EXTRA exception to KASAN
Date: Fri, 21 Sep 2018 02:15:13 +0200 [thread overview]
Message-ID: <20180921001513.12504-1-Jason@zx2c4.com> (raw)
It turns out that KASAN in general will bloat stack frames in unexpected
ways, not just KASAN_EXTRA. So, this patch trivially changes that
default to be associated with KASAN instead of KASAN_EXTRA.
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
---
lib/Kconfig.debug | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index 4966c4fbe7f7..39078a080e29 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -222,7 +222,7 @@ config ENABLE_MUST_CHECK
config FRAME_WARN
int "Warn for stack frames larger than (needs gcc 4.4)"
range 0 8192
- default 3072 if KASAN_EXTRA
+ default 3072 if KASAN
default 2048 if GCC_PLUGIN_LATENT_ENTROPY
default 1280 if (!64BIT && PARISC)
default 1024 if (!64BIT && !PARISC)
--
2.19.0
next reply other threads:[~2018-09-21 0:15 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-09-21 0:15 Jason A. Donenfeld [this message]
2018-09-21 1:50 ` [PATCH] framewarn: expand KASAN_EXTRA exception to KASAN Andy Lutomirski
2018-09-21 8:42 ` Dmitry Vyukov
2018-09-21 12:11 ` Andrey Konovalov
2018-09-21 9:25 ` Andrey Ryabinin
2018-09-21 9:45 ` Dmitry Vyukov
2018-09-21 9:55 ` Nathan Chancellor
2018-09-21 17:59 ` Nick Desaulniers
2018-09-21 18:17 ` Nick Desaulniers
2018-09-22 14:56 ` Arnd Bergmann
2018-09-24 8:04 ` Dmitry Vyukov
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