Using a kernel of gentoo-sources 4.10.0 or 4.10.1 with .config autogenerated by "make oldconfig" from a .config of 4.9.x (accepting all defaults) I got frequent messeges in console, particurally while compiling: Message from syslogd@blade at Thu Mar 2 00:39:02 2017 ... blade kernel: [ 98.014503] mce: [Hardware Error]: CPU 1: Machine Check: 0 Bank 128: 0000000088020803 Message from syslogd@blade at Thu Mar 2 00:39:02 2017 ... blade kernel: [ 98.014505] mce: [Hardware Error]: TSC 4d996aa231 Message from syslogd@blade at Thu Mar 2 00:39:02 2017 ... blade kernel: [ 98.014508] mce: [Hardware Error]: CPU 3: Machine Check: 0 Bank 128: 0000000088020803 Message from syslogd@blade at Thu Mar 2 00:39:02 2017 ... blade kernel: [ 98.014509] mce: [Hardware Error]: TSC 4d996ad5d0 Message from syslogd@blade at Thu Mar 2 00:39:02 2017 ... blade kernel: [ 98.014511] mce: [Hardware Error]: PROCESSOR 0:806e9 TIME 1488411542 SOCKET 0 APIC 3 microcode 48 Message from syslogd@blade at Thu Mar 2 00:39:02 2017 ... blade kernel: [ 98.015353] mce: [Hardware Error]: TSC 4d9997dcd8 Message from syslogd@blade at Thu Mar 2 00:39:02 2017 ... blade kernel: [ 98.015352] mce: [Hardware Error]: CPU 3: Machine Check: 0 Bank 128: 0000000088030802 Message from syslogd@blade at Thu Mar 2 00:39:02 2017 ... blade kernel: [ 98.015351] mce: [Hardware Error]: PROCESSOR 0:806e9 TIME 1488411542 SOCKET 0 APIC 2 microcode 48 Message from syslogd@blade at Thu Mar 2 00:39:02 2017 ... blade kernel: [ 98.014507] mce: [Hardware Error]: PROCESSOR 0:806e9 TIME 1488411542 SOCKET 0 APIC 2 microcode 48 Message from syslogd@blade at Thu Mar 2 00:39:02 2017 ... blade kernel: [ 98.015348] mce: [Hardware Error]: TSC 4d9997dcdc Message from syslogd@blade at Thu Mar 2 00:39:02 2017 ... blade kernel: [ 98.015346] mce: [Hardware Error]: CPU 1: Machine Check: 0 Bank 128: 0000000088030802 Message from syslogd@blade at Thu Mar 2 00:39:02 2017 ... blade kernel: [ 98.015354] mce: [Hardware Error]: PROCESSOR 0:806e9 TIME 1488411542 SOCKET 0 APIC 3 microcode 48 with other kernl I've not problems. I read that could be false positive and the do not comprimize my system but they are annoying and moreover they don't leave me sure.
Created attachment 465678 [details] my .config
I have an dell xps 13 9360, this is my emerge --info: Portage 2.3.4 (python 3.4.6-final-0, default/linux/amd64/13.0/desktop/plasma, gcc-5.4.0, glibc-2.24-r1, 4.9.12-gentoo x86_64) ================================================================= System uname: Linux-4.9.12-gentoo-x86_64-Intel-R-_Core-TM-_i7-7500U_CPU_@_2.70GHz-with-gentoo-2.3 KiB Mem: 16288116 total, 1896200 free KiB Swap: 0 total, 0 free Timestamp of repository gentoo: Sun, 05 Mar 2017 00:00:01 +0000 sh bash 4.4_p12 ld GNU ld (Gentoo 2.27 p1.0) 2.27 app-shells/bash: 4.4_p12::gentoo dev-java/java-config: 2.2.0-r3::gentoo dev-lang/perl: 5.24.1-r1::gentoo dev-lang/python: 2.7.13::gentoo, 3.4.6::gentoo dev-util/cmake: 3.7.2::gentoo dev-util/pkgconfig: 0.29.1::gentoo sys-apps/baselayout: 2.3::gentoo sys-apps/openrc: 0.23.2::gentoo sys-apps/sandbox: 2.10-r3::gentoo sys-devel/autoconf: 2.13::gentoo, 2.69-r2::gentoo sys-devel/automake: 1.13.4-r1::gentoo, 1.15-r2::gentoo sys-devel/binutils: 2.27::gentoo sys-devel/gcc: 5.4.0-r3::gentoo sys-devel/gcc-config: 1.8-r1::gentoo sys-devel/libtool: 2.4.6-r3::gentoo sys-devel/make: 4.2.1::gentoo sys-kernel/linux-headers: 4.10::gentoo (virtual/os-headers) sys-libs/glibc: 2.24-r1::gentoo Repositories: gentoo location: /usr/portage sync-type: rsync sync-uri: rsync://rsync.gentoo.org/gentoo-portage priority: -1000 vortex location: /var/lib/layman/vortex masters: gentoo priority: 50 ACCEPT_KEYWORDS="amd64 ~amd64" ACCEPT_LICENSE="*" CBUILD="x86_64-pc-linux-gnu" CFLAGS="-march=native -O2 -pipe" CHOST="x86_64-pc-linux-gnu" CONFIG_PROTECT="/etc /usr/lib64/libreoffice/program/sofficerc /usr/share/config /usr/share/gnupg/qualified.txt /usr/share/themes/oxygen-gtk/gtk-2.0" CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/dconf /etc/env.d /etc/fonts/fonts.conf /etc/gconf /etc/gentoo-release /etc/revdep-rebuild /etc/sandbox.d /etc/terminfo" CXXFLAGS="-march=native -O2 -pipe" DISTDIR="/usr/portage/distfiles" FCFLAGS="-O2 -pipe" FEATURES="assume-digests binpkg-logs config-protect-if-modified distlocks ebuild-locks fixlafiles merge-sync news parallel-fetch preserve-libs protect-owned sandbox sfperms strict unknown-features-warn unmerge-logs unmerge-orphans userfetch userpriv usersandbox usersync xattr" FFLAGS="-O2 -pipe" GENTOO_MIRRORS="http://gd.tuwien.ac.at/opsys/linux/gentoo/ http://mirror.switch.ch/ftp/mirror/gentoo/" LANG="en" LDFLAGS="-Wl,-O1 -Wl,--as-needed" MAKEOPTS="-j5" PKGDIR="/usr/portage/packages" PORTAGE_CONFIGROOT="/" PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --omit-dir-times --compress --force --whole-file --delete --stats --human-readable --timeout=180 --exclude=/distfiles --exclude=/local --exclude=/packages --exclude=/.git" PORTAGE_TMPDIR="/var/tmp" USE="X a52 aac acl acpi alsa amd64 berkdb bindist bluetooth branding bzip2 cairo cdda cdr cli consolekit cracklib crypt cups cxx dbus declarative dri dri3 dts dvd dvdr egl emboss encode exif fam ffmpeg firefox flac fortran gdbm gif glamor gpm gtk iconv icu ipv6 jpeg kde kipi kwallet lcms ldap libnotify mad mng modules mp3 mp4 mpeg multilib ncurses nls nptl ntfs ogg opengl openmp pam pango pcre pdf phonon plasma png policykit ppds pulseaudio python qml qt3support qt4 qt5 readline sdl seccomp semantic-desktop session spell ssl startup-notification svg tcpd tiff truetype udev udisks unicode upower usb uxa vaapi vdpau vorbis widgets wxwidgets x264 xattr xcb xcomposite xinerama xml xscreensaver xv xvid xvmc zlib" ABI_X86="64 32" ALSA_CARDS="snd_hda_intel" APACHE2_MODULES="authn_core authz_core socache_shmcb unixd actions alias auth_basic authn_alias authn_anon authn_dbm authn_default authn_file authz_dbm authz_default authz_groupfile authz_host authz_owner authz_user autoindex cache cgi cgid dav dav_fs dav_lock deflate dir disk_cache env expires ext_filter file_cache filter headers include info log_config logio mem_cache mime mime_magic negotiation rewrite setenvif speling status unique_id userdir usertrack vhost_alias" CALLIGRA_FEATURES="kexi words flow plan sheets stage tables krita karbon braindump author" CAMERAS="*" COLLECTD_PLUGINS="df interface irq load memory rrdtool swap syslog" CPU_FLAGS_X86="aes avx avx2 fma3 mmx mmxext popcnt sse sse2 sse3 ssse3 sse4_1 sse4_2" ELIBC="glibc" GPSD_PROTOCOLS="ashtech aivdm earthmate evermore fv18 garmin garmintxt gpsclock isync itrax mtk3301 nmea ntrip navcom oceanserver oldstyle oncore rtcm104v2 rtcm104v3 sirf skytraq superstar2 timing tsip tripmate tnt ublox ubx" INPUT_DEVICES="keyboard mouse evdev joystick synaptics wacom" KERNEL="linux" L10N="it en it-IT en-GB en-US uk es" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LIBREOFFICE_EXTENSIONS="presenter-console presenter-minimizer" LINGUAS="it en it_IT en_US es" OFFICE_IMPLEMENTATION="libreoffice" PHP_TARGETS="php5-6" PYTHON_SINGLE_TARGET="python2_7" PYTHON_TARGETS="python2_7 python3_4" RUBY_TARGETS="ruby21" SANE_BACKENDS="*" USERLAND="GNU" VIDEO_CARDS="intel i965 i915 vesa v4l v4l2 modesetting fbdev" XTABLES_ADDONS="quota2 psd pknock lscan length2 ipv4options ipset ipp2p iface geoip fuzzy condition tee tarpit sysrq steal rawnat logmark ipmark dhcpmac delude chaos account" Unset: CC, CPPFLAGS, CTARGET, CXX, EMERGE_DEFAULT_OPTS, INSTALL_MASK, LC_ALL, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS, USE_PYTHON
my lspci 00:00.0 Host bridge: Intel Corporation Device 5904 (rev 02) 00:02.0 VGA compatible controller: Intel Corporation Device 5916 (rev 02) 00:04.0 Signal processing controller: Intel Corporation Skylake Processor Thermal Subsystem (rev 02) 00:14.0 USB controller: Intel Corporation Sunrise Point-LP USB 3.0 xHCI Controller (rev 21) 00:14.2 Signal processing controller: Intel Corporation Sunrise Point-LP Thermal subsystem (rev 21) 00:15.0 Signal processing controller: Intel Corporation Sunrise Point-LP Serial IO I2C Controller #0 (rev 21) 00:15.1 Signal processing controller: Intel Corporation Sunrise Point-LP Serial IO I2C Controller #1 (rev 21) 00:16.0 Communication controller: Intel Corporation Sunrise Point-LP CSME HECI #1 (rev 21) 00:1c.0 PCI bridge: Intel Corporation Device 9d10 (rev f1) 00:1c.4 PCI bridge: Intel Corporation Sunrise Point-LP PCI Express Root Port #5 (rev f1) 00:1c.5 PCI bridge: Intel Corporation Sunrise Point-LP PCI Express Root Port #6 (rev f1) 00:1d.0 PCI bridge: Intel Corporation Sunrise Point-LP PCI Express Root Port #9 (rev f1) 00:1f.0 ISA bridge: Intel Corporation Device 9d58 (rev 21) 00:1f.2 Memory controller: Intel Corporation Sunrise Point-LP PMC (rev 21) 00:1f.3 Audio device: Intel Corporation Device 9d71 (rev 21) 00:1f.4 SMBus: Intel Corporation Sunrise Point-LP SMBus (rev 21) 3a:00.0 Network controller: Qualcomm Atheros QCA6174 802.11ac Wireless Network Adapter (rev 32) 3b:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTS525A PCI Express Card Reader (rev 01) 3c:00.0 Non-Volatile memory controller: Toshiba America Info Systems Device 0115 (rev 01)
lsusb Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 004: ID 0c45:670c Microdia Bus 001 Device 003: ID 04f3:20d0 Elan Microelectronics Corp. Bus 001 Device 002: ID 0cf3:e300 Qualcomm Atheros Communications Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
lshw blade l description: Laptop product: XPS 13 9360 (075B) vendor: Dell Inc. serial: D7NZ9G2 width: 4294967295 bits capabilities: smbios-3.0 dmi-3.0 vsyscall32 configuration: boot=normal chassis=laptop family=XPS sku=075B uuid=44454C4C-3700-104E-805A-C4C04F394732 *-core description: Motherboard product: 0839Y6 vendor: Dell Inc. physical id: 0 version: A00 serial: /D7NZ9G2/CN129636AG022C/ *-firmware description: BIOS vendor: Dell Inc. physical id: 0 version: 1.3.2 date: 01/18/2017 size: 64KiB capacity: 15MiB capabilities: pci pnp upgrade shadowing cdboot bootselect edd int13floppynec int13floppy1200 int13floppy720 int13floppy2880 int5printscreen int9keyboard int14serial int17printer acpi usb smartbattery biosbootspecification netboot uefi *-memory description: System Memory physical id: 38 slot: System board or motherboard size: 16GiB *-bank:0 description: Row of chips Synchronous 1867 MHz (0,5 ns) product: H9CCNNNCLTMLAR-NUD vendor: SK Hynix physical id: 0 serial: 00000000 slot: System Board Memory size: 8GiB width: 64 bits clock: 1867MHz (0.5ns) *-bank:1 description: Row of chips Synchronous 1867 MHz (0,5 ns) product: H9CCNNNCLTMLAR-NUD vendor: SK Hynix physical id: 1 serial: 00000000 slot: System Board Memory size: 8GiB width: 64 bits clock: 1867MHz (0.5ns) *-cache:0 description: L1 cache physical id: 3c slot: L1 Cache size: 128KiB capacity: 128KiB capabilities: synchronous internal write-back unified *-cache:1 description: L2 cache physical id: 3d slot: L2 Cache size: 512KiB capacity: 512KiB capabilities: synchronous internal write-back unified *-cache:2 description: L3 cache physical id: 3e slot: L3 Cache size: 4MiB capacity: 4MiB capabilities: synchronous internal write-back unified *-cpu description: CPU product: Core i7 (To Be Filled By O.E.M.) vendor: Intel Corp. physical id: 3f bus info: cpu@0 version: Intel(R) Core(TM) i7-7500U CPU @ 2.70GHz serial: To Be Filled By O.E.M. slot: U3E1 size: 2701MHz capacity: 2701MHz width: 64 bits clock: 100MHz capabilities: x86-64 fpu fpu_exception wp vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx pdpe1gb rdtscp constant_tsc art arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc aperfmperf eagerfpu pni pclmulqdq dtes64 monitor ds_cpl vmx est tm2 ssse3 sdbg fma cx16 xtpr pdcm pcid sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand lahf_lm abm 3dnowprefetch epb intel_pt tpr_shadow vnmi flexpriority ept vpid fsgsbase tsc_adjust bmi1 avx2 smep bmi2 erms invpcid mpx rdseed adx smap clflushopt xsaveopt xsavec xgetbv1 xsaves dtherm ida arat pln pts hwp hwp_notify hwp_act_window hwp_epp cpufreq configuration: cores=2 enabledcores=2 threads=4 *-pci description: Host bridge product: Intel Corporation vendor: Intel Corporation physical id: 100 bus info: pci@0000:00:00.0 version: 02 width: 32 bits clock: 33MHz *-display description: VGA compatible controller product: Intel Corporation vendor: Intel Corporation physical id: 2 bus info: pci@0000:00:02.0 version: 02 width: 64 bits clock: 33MHz capabilities: pciexpress msi pm vga_controller bus_master cap_list rom configuration: driver=i915 latency=0 resources: irq:278 memory:db000000-dbffffff memory:90000000-9fffffff ioport:f000(size=64) memory:c0000-dffff *-generic:0 description: Signal processing controller product: Skylake Processor Thermal Subsystem vendor: Intel Corporation physical id: 4 bus info: pci@0000:00:04.0 version: 02 width: 64 bits clock: 33MHz capabilities: msi pm cap_list configuration: driver=proc_thermal latency=0 resources: irq:16 memory:dc420000-dc427fff *-usb description: USB controller product: Sunrise Point-LP USB 3.0 xHCI Controller vendor: Intel Corporation physical id: 14 bus info: pci@0000:00:14.0 version: 21 width: 64 bits clock: 33MHz capabilities: pm msi xhci bus_master cap_list configuration: driver=xhci_hcd latency=0 resources: irq:277 memory:dc410000-dc41ffff *-usbhost:0 product: xHCI Host Controller vendor: Linux 4.9.12-gentoo xhci-hcd physical id: 0 bus info: usb@1 logical name: usb1 version: 4.09 capabilities: usb-2.00 configuration: driver=hub slots=12 speed=480Mbit/s *-usb:0 description: Bluetooth wireless interface vendor: Qualcomm Atheros Communications physical id: 3 bus info: usb@1:3 version: 0.01 capabilities: bluetooth usb-2.01 configuration: driver=btusb maxpower=100mA speed=12Mbit/s *-usb:1 description: Human interface device product: Touchscreen vendor: ELAN physical id: 4 bus info: usb@1:4 version: 11.12 capabilities: usb-2.00 configuration: driver=usbhid maxpower=100mA speed=12Mbit/s *-usb:2 description: Video product: Integrated_Webcam_HD vendor: CN09GTFM72487695B051A01 physical id: 5 bus info: usb@1:5 version: 56.26 capabilities: usb-2.01 configuration: driver=uvcvideo maxpower=500mA speed=480Mbit/s *-usbhost:1 product: xHCI Host Controller vendor: Linux 4.9.12-gentoo xhci-hcd physical id: 1 bus info: usb@2 logical name: usb2 version: 4.09 capabilities: usb-3.00 configuration: driver=hub slots=6 speed=5000Mbit/s *-generic:1 UNCLAIMED description: Signal processing controller product: Sunrise Point-LP Thermal subsystem vendor: Intel Corporation physical id: 14.2 bus info: pci@0000:00:14.2 version: 21 width: 64 bits clock: 33MHz capabilities: pm msi cap_list configuration: latency=0 resources: memory:dc434000-dc434fff *-generic:2 description: Signal processing controller product: Sunrise Point-LP Serial IO I2C Controller #0 vendor: Intel Corporation physical id: 15 bus info: pci@0000:00:15.0 version: 21 width: 64 bits clock: 33MHz capabilities: pm bus_master cap_list configuration: driver=intel-lpss latency=0 resources: irq:16 memory:dc433000-dc433fff *-generic:3 description: Signal processing controller product: Sunrise Point-LP Serial IO I2C Controller #1 vendor: Intel Corporation physical id: 15.1 bus info: pci@0000:00:15.1 version: 21 width: 64 bits clock: 33MHz capabilities: pm bus_master cap_list configuration: driver=intel-lpss latency=0 resources: irq:17 memory:dc432000-dc432fff *-communication UNCLAIMED description: Communication controller product: Sunrise Point-LP CSME HECI #1 vendor: Intel Corporation physical id: 16 bus info: pci@0000:00:16.0 version: 21 width: 64 bits clock: 33MHz capabilities: pm msi cap_list configuration: latency=0 resources: memory:dc431000-dc431fff *-pci:0 description: PCI bridge product: Intel Corporation vendor: Intel Corporation physical id: 1c bus info: pci@0000:00:1c.0 version: f1 width: 32 bits clock: 33MHz capabilities: pci pciexpress msi pm normal_decode bus_master cap_list configuration: driver=pcieport resources: irq:16 ioport:2000(size=4096) memory:c4000000-da0fffff ioport:a0000000(size=570425344) *-pci:1 description: PCI bridge product: Sunrise Point-LP PCI Express Root Port #5 vendor: Intel Corporation physical id: 1c.4 bus info: pci@0000:00:1c.4 version: f1 width: 32 bits clock: 33MHz capabilities: pci pciexpress msi pm normal_decode bus_master cap_list configuration: driver=pcieport resources: irq:16 memory:dc000000-dc1fffff *-network description: Wireless interface product: QCA6174 802.11ac Wireless Network Adapter vendor: Qualcomm Atheros physical id: 0 bus info: pci@0000:3a:00.0 logical name: wlp58s0 version: 32 serial: 9c:b6:d0:16:e5:41 width: 64 bits clock: 33MHz capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless configuration: broadcast=yes driver=ath10k_pci driverversion=4.9.12-gentoo firmware=WLAN.RM.2.0-00180-QCARMSWPZ-1 ip=192.168.168.179 latency=0 link=yes multicast=yes wireless=IEEE 802.11 resources: irq:279 memory:dc000000-dc1fffff *-pci:2 description: PCI bridge product: Sunrise Point-LP PCI Express Root Port #6 vendor: Intel Corporation physical id: 1c.5 bus info: pci@0000:00:1c.5 version: f1 width: 32 bits clock: 33MHz capabilities: pci pciexpress msi pm normal_decode bus_master cap_list configuration: driver=pcieport resources: irq:17 memory:dc300000-dc3fffff *-generic description: Unassigned class product: RTS525A PCI Express Card Reader vendor: Realtek Semiconductor Co., Ltd. physical id: 0 bus info: pci@0000:3b:00.0 version: 01 width: 32 bits clock: 33MHz capabilities: pm msi pciexpress bus_master cap_list configuration: driver=rtsx_pci latency=0 resources: irq:120 memory:dc300000-dc300fff *-pci:3 description: PCI bridge product: Sunrise Point-LP PCI Express Root Port #9 vendor: Intel Corporation physical id: 1d bus info: pci@0000:00:1d.0 version: f1 width: 32 bits clock: 33MHz capabilities: pci pciexpress msi pm normal_decode bus_master cap_list configuration: driver=pcieport resources: irq:16 memory:dc200000-dc2fffff *-storage description: Non-Volatile memory controller product: Toshiba America Info Systems vendor: Toshiba America Info Systems physical id: 0 bus info: pci@0000:3c:00.0 version: 01 width: 64 bits clock: 33MHz capabilities: storage pm msi pciexpress msix nvm_express bus_master cap_list configuration: driver=nvme latency=0 resources: irq:16 memory:dc200000-dc203fff *-isa description: ISA bridge product: Intel Corporation vendor: Intel Corporation physical id: 1f bus info: pci@0000:00:1f.0 version: 21 width: 32 bits clock: 33MHz capabilities: isa bus_master configuration: latency=0 *-memory UNCLAIMED description: Memory controller product: Sunrise Point-LP PMC vendor: Intel Corporation physical id: 1f.2 bus info: pci@0000:00:1f.2 version: 21 width: 32 bits clock: 33MHz (30.3ns) configuration: latency=0 resources: memory:dc42c000-dc42ffff *-multimedia description: Audio device product: Intel Corporation vendor: Intel Corporation physical id: 1f.3 bus info: pci@0000:00:1f.3 version: 21 width: 64 bits clock: 33MHz capabilities: pm msi bus_master cap_list configuration: driver=snd_hda_intel latency=32 resources: irq:280 memory:dc428000-dc42bfff memory:dc400000-dc40ffff *-serial description: SMBus product: Sunrise Point-LP SMBus vendor: Intel Corporation physical id: 1f.4 bus info: pci@0000:00:1f.4 version: 21 width: 64 bits clock: 33MHz configuration: driver=i801_smbus latency=0 resources: irq:16 memory:dc430000-dc4300ff ioport:f040(size=32) *-battery product: DELL TP1GT61 vendor: SMP physical id: 1 version: 10/12/2016 serial: 0628 slot: Sys. Battery Bay capacity: 59990mWh configuration: voltage=7,6V
Several web pages where someone talks about this problem: http://en.community.dell.com/techcenter/os-applications/f/4613/t/19997490 http://unix.stackexchange.com/questions/324237/understanding-machine-check-exceptions-mce https://lists.gt.net/linux/kernel/2596660
An interesting analysis: https://bugs.archlinux.org/task/53112
I've made several tests. I've found that unchecking the "Intel MCE features" in the kernel config: Processor type and feature [*] Machine Check / overheating reporting │ │ │ │ [ ] Intel MCE features │ │ │ │ [ ] AMD MCE features leaving "Machine Chek ..." CHECKED, it seems not to give false positive any more. Probably because it doesn't analyse the values, so it is a bad workaround. But that messages were very annoying. I cannot argue why with kernel 4.9.x with the "Intel MCE feature" checked it didn't give any error message.
Can you emerge mcelog and then run it after you get some of these messages. This is related to thermal sensors.
Ok, I recompile 4.10.5 with the option "Intel MCE" and than reboot and do the test you ask. I'll let you know asap.
Here the ouput of mcelog command after an error: Hardware event. This is not a software error. MCE 0 CPU 1 THERMAL EVENT TSC 7eb5ae0b479 TIME 1490646380 Mon Mar 27 22:26:20 2017 Processor 1 heated above trip temperature. Throttling enabled. Please check your system cooling. Performance will be impacted STATUS 8802080b MCGSTATUS 0 MCGCAP c08 APICID 2 SOCKETID 0 CPUID Vendor Intel Family 6 Model 142 Hardware event. This is not a software error. MCE 1 CPU 3 THERMAL EVENT TSC 7eb5ae0f73e TIME 1490646380 Mon Mar 27 22:26:20 2017 Processor 3 heated above trip temperature. Throttling enabled. Please check your system cooling. Performance will be impacted STATUS 8802080b MCGSTATUS 0 MCGCAP c08 APICID 3 SOCKETID 0 CPUID Vendor Intel Family 6 Model 142 Hardware event. This is not a software error. MCE 2 CPU 3 THERMAL EVENT TSC 7eb5b0d4904 TIME 1490646380 Mon Mar 27 22:26:20 2017 Processor 3 below trip temperature. Throttling disabled mcelog: Too many trigger children running already STATUS 8803080a MCGSTATUS 0 MCGCAP c08 APICID 3 SOCKETID 0 CPUID Vendor Intel Family 6 Model 142 Hardware event. This is not a software error. MCE 3 CPU 1 THERMAL EVENT TSC 7eb5b0d4be0 TIME 1490646380 Mon Mar 27 22:26:20 2017 Processor 1 below trip temperature. Throttling disabled mcelog: Too many trigger children running already STATUS 8803080a MCGSTATUS 0 MCGCAP c08 APICID 2 SOCKETID 0 CPUID Vendor Intel Family 6 Model 142 <27>Mar 27 22:26:46 mcelog: CPU 3 on socket 0 received unknown error <27>Mar 27 22:26:46 mcelog: CPU 1 on socket 0 received unknown error <27>Mar 27 22:26:46 mcelog: Location: CPU 1 on socket 0 <27>Mar 27 22:26:46 mcelog: Location: CPU 3 on socket 0
this is the error appeared in notification area: Message from syslogd@blade at Mon Mar 27 22:26:20 2017 ... Message from syslogd@blade at Mon Mar 27 22:26:20 2017 ... bladeblade kernel: [ 2983.221866] mce: [Hardware Error]: CPU 1: Machine Check: 0 Bank 128: 000000008802080bkernel: [ 2983.221867] mce: [Hardware Error]: TSC 7eb5ae0b479 Message from syslogd@blade at Mon Mar 27 22:26:20 2017 ... blade kernel: [ 2983.221869] mce: [Hardware Error]: PROCESSOR 0:806e9 TIME 1490646380 SOCKET 0 APIC 2 microcode 48 Message from syslogd@blade at Mon Mar 27 22:26:20 2017 ... blade kernel: [ 2983.221873] mce: [Hardware Error]: TSC 7eb5ae0f73e Message from syslogd@blade at Mon Mar 27 22:26:20 2017 ... blade kernel: [ 2983.221871] mce: [Hardware Error]: CPU 3: Machine Check: 0 Bank 128: 000000008802080b Message from syslogd@blade at Mon Mar 27 22:26:20 2017 ... blade kernel: [ 2983.223131] mce: [Hardware Error]: PROCESSOR 0:806e9 TIME 1490646380 SOCKET 0 APIC 3 microcode 48 Message from syslogd@blade at Mon Mar 27 22:26:20 2017 ... Message from syslogd@blade at Mon Mar 27 22:26:20 2017 ... blade Message from syslogd@blade at Mon Mar 27 22:26:20 2017 ... blade bladekernel: [ 2983.223129] mce: [Hardware Error]: TSC 7eb5b0d4904 kernel: [ 2983.221877] mce: [Hardware Error]: PROCESSOR 0:806e9 TIME 1490646380 SOCKET 0 APIC 3 microcode 48 kernel: [ 2983.223126] mce: [Hardware Error]: CPU 3: Machine Check: 0 Bank 128: 000000008803080a Message from syslogd@blade at Mon Mar 27 22:26:20 2017 ... blade kernel: [ 2983.223132] mce: [Hardware Error]: CPU 1: Machine Check: 0 Bank 128: 000000008803080a Message from syslogd@blade at Mon Mar 27 22:26:20 2017 ... blade kernel: [ 2983.223135] mce: [Hardware Error]: PROCESSOR 0:806e9 TIME 1490646380 SOCKET 0 APIC 2 microcode 48 Message from syslogd@blade at Mon Mar 27 22:26:20 2017 ... blade kernel: [ 2983.223133] mce: [Hardware Error]: TSC 7eb5b0d4be0
So it looks like valid error messages are corresponding to the thermal events.
I don't think so. If you were right: 1) The same thing would be happened also with kernel <4.10, instead it happens just with 4.10.x kernels. 2) This problem affects a lot of notebook suddenly after the 4.10 kernels It is likely a software problem (false positive). Of course, beeing a bug, the kernel thinks to be right.
Problem is still there in kernel 4.10.6 even though less frequent.
I also suffer the same with an Inspiron 15 7000 Gaming/065C71, BIOS 01.00.05 03/01/2017. With kernel 4.9 all is ok, but with 4.11.x I see this: [ 0.049025] mce: [Hardware Error]: CPU 0: Machine Check: 0 Bank 6: ee0000000040110a [ 0.049129] mce: [Hardware Error]: TSC 0 ADDR fef1ffc0 MISC 7880010086 [ 0.049194] mce: [Hardware Error]: PROCESSOR 0:906e9 TIME 1495615917 SOCKET 0 APIC 0 microcode 42 [ 0.049260] mce: [Hardware Error]: CPU 0: Machine Check: 0 Bank 7: ee0000000040110a [ 0.049322] mce: [Hardware Error]: TSC 0 ADDR fef1ce40 MISC 47880010086 [ 0.049385] mce: [Hardware Error]: PROCESSOR 0:906e9 TIME 1495615917 SOCKET 0 APIC 0 microcode 42 [ 0.049450] mce: [Hardware Error]: CPU 0: Machine Check: 0 Bank 8: ee0000000040110a [ 0.049513] mce: [Hardware Error]: TSC 0 ADDR fef1ff40 MISC 7880010086 [ 0.049574] mce: [Hardware Error]: PROCESSOR 0:906e9 TIME 1495615917 SOCKET 0 APIC 0 microcode 42 [ 0.049640] mce: [Hardware Error]: CPU 0: Machine Check: 0 Bank 9: ee0000000040110a [ 0.049703] mce: [Hardware Error]: TSC 0 ADDR fef1ff00 MISC 3880010086 [ 0.049765] mce: [Hardware Error]: PROCESSOR 0:906e9 TIME 1495615917 SOCKET 0 APIC 0 microcode 42 It looks the same as: https://bugs.archlinux.org/task/53112 https://unix.stackexchange.com/questions/324237/understanding-machine-check-exceptions-mce http://www.pclinuxos.com/forum/index.php?topic=141432.0 https://lists.gt.net/linux/kernel/2596660
And another reference at Dell side: http://en.community.dell.com/support-forums/software-os/f/3525/t/20012273
(In reply to Pacho Ramos from comment #17) > And another reference at Dell side: > http://en.community.dell.com/support-forums/software-os/f/3525/t/20012273 But even enabling that both options I get the same messages
(In reply to Pacho Ramos from comment #17) > And another reference at Dell side: > http://en.community.dell.com/support-forums/software-os/f/3525/t/20012273 I've compiled Kernel putting on yes: CONFIG_INTEL_PMC_CORE CONFIG_INTEL_PCH_THERMAL then I activate: Processor type and features [*] Machine Check / overheating reporting │ │ │ │ [*] Support for deprecated /dev/mcelog character device │ │ │ │ [*] Intel MCE features │ │ │ │ [ ] AMD MCE features │ │ │ │ < > Machine check injector support │ And I didn't get that annoying messages any more For me who opened this bug, I can considered it closed. Please tell me if this solution is good for everyone. Let me know. Silvio
It doesn't change anything on my case (kernel 4.12.10)
(In reply to Pacho Ramos from comment #20) > It doesn't change anything on my case (kernel 4.12.10) I had kernel 4.12.9. I put my .config in the next message
Created attachment 491130 [details] .config kernel 4.2.19 (gentoo.sources) whith this settings I do not get any error messages anymore
could you do a diff of your old 4.12.9 config file and the 4.12.9 new config file ?
