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authorMichael Weiser <michael.weiser@gmx.de>2018-02-01 23:13:38 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2018-02-28 10:19:42 +0100
commit6842a512ad160e15be7985acb9992795f3d11af1 (patch)
treea344a09b0c18a2cb2367cdbd1854b96a4dbf8bd9
parent96e99291728f4e975ef832f14a461720c0f98eeb (diff)
arm64: Disable unhandled signal log messages by default
commit 5ee39a71fd89ab7240c5339d04161c44a8e03269 upstream. aarch64 unhandled signal kernel messages are very verbose, suggesting them to be more of a debugging aid: sigsegv[33]: unhandled level 2 translation fault (11) at 0x00000000, esr 0x92000046, in sigsegv[400000+71000] CPU: 1 PID: 33 Comm: sigsegv Tainted: G W 4.15.0-rc3+ #3 Hardware name: linux,dummy-virt (DT) pstate: 60000000 (nZCv daif -PAN -UAO) pc : 0x4003f4 lr : 0x4006bc sp : 0000fffffe94a060 x29: 0000fffffe94a070 x28: 0000000000000000 x27: 0000000000000000 x26: 0000000000000000 x25: 0000000000000000 x24: 00000000004001b0 x23: 0000000000486ac8 x22: 00000000004001c8 x21: 0000000000000000 x20: 0000000000400be8 x19: 0000000000400b30 x18: 0000000000484728 x17: 000000000865ffc8 x16: 000000000000270f x15: 00000000000000b0 x14: 0000000000000002 x13: 0000000000000001 x12: 0000000000000000 x11: 0000000000000000 x10: 0008000020008008 x9 : 000000000000000f x8 : ffffffffffffffff x7 : 0004000000000000 x6 : ffffffffffffffff x5 : 0000000000000000 x4 : 0000000000000000 x3 : 00000000004003e4 x2 : 0000fffffe94a1e8 x1 : 000000000000000a x0 : 0000000000000000 Disable them by default, so they can be enabled using /proc/sys/debug/exception-trace. Cc: <stable@vger.kernel.org> Signed-off-by: Michael Weiser <michael.weiser@gmx.de> Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--arch/arm64/kernel/traps.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm64/kernel/traps.c b/arch/arm64/kernel/traps.c
index 8043574959d7..4fc0e958770b 100644
--- a/arch/arm64/kernel/traps.c
+++ b/arch/arm64/kernel/traps.c
@@ -56,7 +56,7 @@ static const char *handler[]= {
"Error"
};
-int show_unhandled_signals = 1;
+int show_unhandled_signals = 0;
/*
* Dump out the contents of some kernel memory nicely...