From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
stable@vger.kernel.org, Michael Weiser <michael.weiser@gmx.de>,
Will Deacon <will.deacon@arm.com>
Subject: [PATCH 3.18 10/13] arm64: Disable unhandled signal log messages by default
Date: Mon, 26 Feb 2018 21:15:38 +0100 [thread overview]
Message-ID: <20180226201527.680787933@linuxfoundation.org> (raw)
In-Reply-To: <20180226201527.242286068@linuxfoundation.org>
3.18-stable review patch. If anyone has any objections, please let me know.
------------------
From: Michael Weiser <michael.weiser@gmx.de>
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>
---
arch/arm64/kernel/traps.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/arch/arm64/kernel/traps.c
+++ b/arch/arm64/kernel/traps.c
@@ -45,7 +45,7 @@ static const char *handler[]= {
"Error"
};
-int show_unhandled_signals = 1;
+int show_unhandled_signals = 0;
/*
* Dump out the contents of some memory nicely...
next prev parent reply other threads:[~2018-02-26 20:15 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-02-26 20:15 [PATCH 3.18 00/13] 3.18.97-stable review Greg Kroah-Hartman
2018-02-26 20:15 ` [PATCH 3.18 01/13] netfilter: drop outermost socket lock in getsockopt() Greg Kroah-Hartman
2018-02-26 20:15 ` [PATCH 3.18 02/13] PCI: keystone: Fix interrupt-controller-node lookup Greg Kroah-Hartman
2018-02-26 20:15 ` [PATCH 3.18 03/13] xtensa: fix high memory/reserved memory collision Greg Kroah-Hartman
2018-02-26 20:15 ` [PATCH 3.18 04/13] scsi: ibmvfc: fix misdefined reserved field in ibmvfc_fcp_rsp_info Greg Kroah-Hartman
2018-02-26 20:15 ` [PATCH 3.18 05/13] cfg80211: fix cfg80211_beacon_dup Greg Kroah-Hartman
2018-02-26 20:15 ` [PATCH 3.18 06/13] iio: buffer: check if a buffer has been set up when poll is called Greg Kroah-Hartman
2018-02-26 20:15 ` [PATCH 3.18 07/13] iio: adis_lib: Initialize trigger before requesting interrupt Greg Kroah-Hartman
2018-02-26 20:15 ` [PATCH 3.18 08/13] x86/oprofile: Fix bogus GCC-8 warning in nmi_setup() Greg Kroah-Hartman
2018-02-26 20:15 ` [PATCH 3.18 09/13] irqchip/gic-v3: Use wmb() instead of smb_wmb() in gic_raise_softirq() Greg Kroah-Hartman
2018-02-26 20:15 ` Greg Kroah-Hartman [this message]
2018-02-26 20:15 ` [PATCH 3.18 11/13] usb: dwc3: gadget: Set maxpacket size for ep0 IN Greg Kroah-Hartman
2018-02-26 20:15 ` [PATCH 3.18 12/13] usb: gadget: f_fs: Process all descriptors during bind Greg Kroah-Hartman
2018-02-26 20:15 ` [PATCH 3.18 13/13] ASN.1: fix out-of-bounds read when parsing indefinite length item Greg Kroah-Hartman
2018-02-27 0:53 ` [PATCH 3.18 00/13] 3.18.97-stable review Shuah Khan
2018-02-27 2:17 ` Harsh Shandilya
2018-02-27 13:10 ` Greg Kroah-Hartman
2018-02-27 4:58 ` kernelci.org bot
2018-02-27 14:53 ` Guenter Roeck
2018-02-27 18:32 ` Greg Kroah-Hartman
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