Patch "arm64: Disable unhandled signal log messages by default" has been added to the 4.15-stable tree

This is a note to let you know that I've just added the patch titled

arm64: Disable unhandled signal log messages by default

to the 4.15-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
arm64-disable-unhandled-signal-log-messages-by-default.patch
and it can be found in the queue-4.15 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

From: Michael Weiser <[email protected]>
Date: Thu, 1 Feb 2018 23:13:38 +0100
Subject: arm64: Disable unhandled signal log messages by default

From: Michael Weiser <[email protected]>

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.

---
 arch/arm64/kernel/traps.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

@@ -57,7 +57,7 @@ static const char *handler[]= {
 	"Error"
 };
 
-int show_unhandled_signals = 1;
+int show_unhandled_signals = 0;
 
 static void dump_backtrace_entry(unsigned long where)
 {

Patches currently in stable-queue which might be from [email protected] are

queue-4.15/arm64-remove-unimplemented-syscall-log-message.patch queue-4.15/arm64-disable-unhandled-signal-log-messages-by-default.patch