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 4.9 15/39] arm64: Disable unhandled signal log messages by default
Date: Mon, 26 Feb 2018 21:20:36 +0100 [thread overview]
Message-ID: <20180226201644.357861004@linuxfoundation.org> (raw)
In-Reply-To: <20180226201643.660109883@linuxfoundation.org>
4.9-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
@@ -50,7 +50,7 @@ static const char *handler[]= {
"Error"
};
-int show_unhandled_signals = 1;
+int show_unhandled_signals = 0;
/*
* Dump out the contents of some kernel memory nicely...
next prev parent reply other threads:[~2018-02-26 20:20 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-02-26 20:20 [PATCH 4.9 00/39] 4.9.85-stable review Greg Kroah-Hartman
2018-02-26 20:20 ` [PATCH 4.9 01/39] netfilter: drop outermost socket lock in getsockopt() Greg Kroah-Hartman
2018-02-26 20:20 ` [PATCH 4.9 02/39] xtensa: fix high memory/reserved memory collision Greg Kroah-Hartman
2018-02-26 20:20 ` [PATCH 4.9 03/39] scsi: ibmvfc: fix misdefined reserved field in ibmvfc_fcp_rsp_info Greg Kroah-Hartman
2018-02-26 20:20 ` [PATCH 4.9 04/39] cfg80211: fix cfg80211_beacon_dup Greg Kroah-Hartman
2018-02-26 20:20 ` Greg Kroah-Hartman
2018-02-26 20:20 ` [PATCH 4.9 05/39] X.509: fix BUG_ON() when hash algorithm is unsupported Greg Kroah-Hartman
2018-02-26 20:20 ` [PATCH 4.9 06/39] PKCS#7: fix certificate chain verification Greg Kroah-Hartman
2018-02-26 20:20 ` [PATCH 4.9 07/39] RDMA/uverbs: Protect from command mask overflow Greg Kroah-Hartman
2018-02-26 20:20 ` [PATCH 4.9 08/39] iio: buffer: check if a buffer has been set up when poll is called Greg Kroah-Hartman
2018-02-26 20:20 ` [PATCH 4.9 09/39] iio: adis_lib: Initialize trigger before requesting interrupt Greg Kroah-Hartman
2018-02-26 20:20 ` [PATCH 4.9 10/39] x86/oprofile: Fix bogus GCC-8 warning in nmi_setup() Greg Kroah-Hartman
2018-02-26 20:20 ` [PATCH 4.9 11/39] irqchip/gic-v3: Use wmb() instead of smb_wmb() in gic_raise_softirq() Greg Kroah-Hartman
2018-02-26 20:20 ` [PATCH 4.9 12/39] PCI/cxgb4: Extend T3 PCI quirk to T4+ devices Greg Kroah-Hartman
2018-02-26 20:20 ` [PATCH 4.9 13/39] ohci-hcd: Fix race condition caused by ohci_urb_enqueue() and io_watchdog_func() Greg Kroah-Hartman
2018-02-26 20:20 ` [PATCH 4.9 14/39] usb: ohci: Proper handling of ed_rm_list to handle race condition between usb_kill_urb() and finish_unlinks() Greg Kroah-Hartman
2018-02-26 20:20 ` Greg Kroah-Hartman [this message]
2018-02-26 20:20 ` [PATCH 4.9 16/39] Add delay-init quirk for Corsair K70 RGB keyboards Greg Kroah-Hartman
2018-02-26 20:20 ` [PATCH 4.9 17/39] drm/edid: Add 6 bpc quirk for CPT panel in Asus UX303LA Greg Kroah-Hartman
2018-02-26 20:20 ` [PATCH 4.9 18/39] usb: dwc3: gadget: Set maxpacket size for ep0 IN Greg Kroah-Hartman
2018-02-26 20:20 ` [PATCH 4.9 19/39] usb: ldusb: add PIDs for new CASSY devices supported by this driver Greg Kroah-Hartman
2018-02-26 20:20 ` [PATCH 4.9 20/39] Revert "usb: musb: host: dont start next rx urb if current one failed" Greg Kroah-Hartman
2018-02-26 20:20 ` [PATCH 4.9 21/39] usb: gadget: f_fs: Process all descriptors during bind Greg Kroah-Hartman
2018-02-26 20:20 ` [PATCH 4.9 22/39] usb: renesas_usbhs: missed the "running" flag in usb_dmac with rx path Greg Kroah-Hartman
2018-02-26 20:20 ` [PATCH 4.9 23/39] drm/amdgpu: Add dpm quirk for Jet PRO (v2) Greg Kroah-Hartman
2018-02-26 20:20 ` [PATCH 4.9 24/39] drm/amdgpu: add atpx quirk handling (v2) Greg Kroah-Hartman
2018-02-26 20:20 ` [PATCH 4.9 25/39] drm/amdgpu: Avoid leaking PM domain on driver unbind (v2) Greg Kroah-Hartman
2018-02-26 20:20 ` [PATCH 4.9 26/39] drm/amdgpu: add new device to use atpx quirk Greg Kroah-Hartman
2018-02-26 20:20 ` [PATCH 4.9 27/39] binder: add missing binder_unlock() Greg Kroah-Hartman
2018-02-26 20:20 ` [PATCH 4.9 28/39] X.509: fix NULL dereference when restricting key with unsupported_sig Greg Kroah-Hartman
2018-02-26 20:20 ` [PATCH 4.9 29/39] mm: avoid spurious bad pmd warning messages Greg Kroah-Hartman
2018-02-26 20:20 ` [PATCH 4.9 30/39] fs/dax.c: fix inefficiency in dax_writeback_mapping_range() Greg Kroah-Hartman
2018-02-26 20:20 ` [PATCH 4.9 31/39] libnvdimm: fix integer overflow static analysis warning Greg Kroah-Hartman
2018-02-26 20:20 ` [PATCH 4.9 32/39] device-dax: implement ->split() to catch invalid munmap attempts Greg Kroah-Hartman
2018-02-26 20:20 ` [PATCH 4.9 33/39] mm: introduce get_user_pages_longterm Greg Kroah-Hartman
2018-02-26 20:20 ` [PATCH 4.9 34/39] v4l2: disable filesystem-dax mapping support Greg Kroah-Hartman
2018-02-26 20:20 ` [PATCH 4.9 35/39] IB/core: disable memory registration of filesystem-dax vmas Greg Kroah-Hartman
2018-02-26 20:20 ` [PATCH 4.9 36/39] libnvdimm, dax: fix 1GB-aligned namespaces vs physical misalignment Greg Kroah-Hartman
2018-02-26 20:20 ` [PATCH 4.9 37/39] mm: Fix devm_memremap_pages() collision handling Greg Kroah-Hartman
2018-02-26 20:20 ` [PATCH 4.9 38/39] mm: fail get_vaddr_frames() for filesystem-dax mappings Greg Kroah-Hartman
2018-02-26 20:21 ` [PATCH 4.9 39/39] x86/entry/64: Clear extra registers beyond syscall arguments, to reduce speculation attack surface Greg Kroah-Hartman
2018-02-27 0:57 ` [PATCH 4.9 00/39] 4.9.85-stable review Shuah Khan
2018-02-27 7:12 ` Naresh Kamboju
2018-02-27 14:56 ` Guenter Roeck
2018-02-27 18:34 ` Greg Kroah-Hartman
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