From mboxrd@z Thu Jan 1 00:00:00 1970 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S965229AbeALVaU (ORCPT + 1 other); Fri, 12 Jan 2018 16:30:20 -0500 Received: from mail-ot0-f175.google.com ([74.125.82.175]:43383 "EHLO mail-ot0-f175.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S965156AbeALVaR (ORCPT ); Fri, 12 Jan 2018 16:30:17 -0500 X-Google-Smtp-Source: ACJfBour4hU2qhs2G2BulMP/wY9llSP/TFjXufur8IDjAyvtwrWJKziOVB7wSSQhCRpXZTc9+qIw/w== Subject: Re: Yet another KPTI regression with 4.14.x series in a VM To: Thomas Gleixner Cc: X86 ML , Linux Kernel Mailing List , stable@vger.kernel.org References: From: Laura Abbott Message-ID: <9eb15489-da09-7a4c-0700-7b6eb99e6f7b@redhat.com> Date: Fri, 12 Jan 2018 13:30:13 -0800 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.5.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Return-Path: On 01/12/2018 10:51 AM, Thomas Gleixner wrote: > On Fri, 12 Jan 2018, Laura Abbott wrote: >> Fedora got a bug report on 4.14.11 of a panic when booting a >> Fedora guest in a CentOS 6 VM, not reproducible with nopti. >> The issue is still present as of 4.14.13 as well. The only >> report is a panic screenshot >> https://bugzilla.redhat.com/show_bug.cgi?id=1532458 >> >> I've lost track of all the fixes that have been flying around, >> is this a new issue or has a fix not yet made it to stable? > > Hmm. Looks kinda familiar, but that has been fixed I think even before > 4.4.11. Could you please ask the reported to provide a full console log via > the VM "serial console" ? > > Thanks, > > tglx > [ 0.000000] Linux version 4.14.13-300.fc27.x86_64 (mockbuild@bkernel01.phx2.fedoraproject.org) (gcc version 7.2.1 20170915 (Red Hat 7.2.1-2) (GCC)) #1 SMP Thu Jan 11 04:00:01 UTC 2018 [ 0.000000] Command line: BOOT_IMAGE=/vmlinuz-4.14.13-300.fc27.x86_64 root=/dev/mapper/fedora-root ro rd.lvm.lv=fedora/root rd.lvm.lv=fedora/swap rhgb LANG=en_US.UTF-8 console=tty0 console=ttyS0 [ 0.000000] Disabled fast string operations [ 0.000000] x86/fpu: x87 FPU will use FXSAVE [ 0.000000] e820: BIOS-provided physical RAM map: [ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009dbff] usable [ 0.000000] BIOS-e820: [mem 0x000000000009dc00-0x000000000009ffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved [ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x000000007fffcfff] usable [ 0.000000] BIOS-e820: [mem 0x000000007fffd000-0x000000007fffffff] reserved [ 0.000000] BIOS-e820: [mem 0x00000000fffbc000-0x00000000ffffffff] reserved [ 0.000000] NX (Execute Disable) protection: active [ 0.000000] random: fast init done [ 0.000000] SMBIOS 2.4 present. [ 0.000000] DMI: Red Hat KVM, BIOS 0.5.1 01/01/2007 [ 0.000000] Hypervisor detected: KVM [ 0.000000] tsc: Using PIT calibration value [ 0.000000] e820: last_pfn = 0x7fffd max_arch_pfn = 0x400000000 [ 0.000000] x86/PAT: PAT MSR is 0, disabled. [ 0.000000] x86/PAT: Configuration [0-7]: WB WT UC- UC WB WT UC- UC [ 0.000000] found SMP MP-table at [mem 0x000fda30-0x000fda3f] mapped at [ffffffffff200a30] [ 0.000000] RAMDISK: [mem 0x356e3000-0x36b69fff] [ 0.000000] ACPI: Early table checksum verification disabled [ 0.000000] ACPI: RSDP 0x00000000000FD9E0 000014 (v00 BOCHS ) [ 0.000000] ACPI: RSDT 0x000000007FFFD5D0 000034 (v01 BOCHS BXPCRSDT 00000001 BXPC 00000001) [ 0.000000] ACPI: FACP 0x000000007FFFFE20 000074 (v01 BOCHS BXPCFACP 00000001 BXPC 00000001) [ 0.000000] ACPI: DSDT 0x000000007FFFD910 0024A2 (v01 BXPC BXDSDT 00000001 INTL 20090123) [ 0.000000] ACPI: FACS 0x000000007FFFFDC0 000040 [ 0.000000] ACPI: SSDT 0x000000007FFFD810 0000FF (v01 BOCHS BXPCSSDT 00000001 BXPC 00000001) [ 0.000000] ACPI: APIC 0x000000007FFFD720 000080 (v01 BOCHS BXPCAPIC 00000001 BXPC 00000001) [ 0.000000] ACPI: SSDT 0x000000007FFFD610 00010F (v01 BXPC BXSSDTPC 00000001 INTL 20090123) [ 0.000000] No NUMA configuration found [ 0.000000] Faking a node at [mem 0x0000000000000000-0x000000007fffcfff] [ 0.000000] NODE_DATA(0) allocated [mem 0x7ffd2000-0x7fffcfff] [ 0.000000] kvm-clock: Using msrs 4b564d01 and 4b564d00 [ 0.000000] kvm-clock: cpu 0, msr 0:7ffc2001, primary cpu clock [ 0.000000] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.000000] Zone ranges: [ 0.000000] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.000000] DMA32 [mem 0x0000000001000000-0x000000007fffcfff] [ 0.000000] Normal empty [ 0.000000] Device empty [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x0000000000001000-0x000000000009cfff] [ 0.000000] node 0: [mem 0x0000000000100000-0x000000007fffcfff] [ 0.000000] Initmem setup node 0 [mem 0x0000000000001000-0x000000007fffcfff] [ 0.000000] ACPI: PM-Timer IO Port: 0xb008 [ 0.000000] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 0.000000] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 0.000000] Using ACPI (MADT) for SMP configuration information [ 0.000000] smpboot: Allowing 2 CPUs, 0 hotplug CPUs [ 0.000000] PM: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.000000] PM: Registered nosave memory: [mem 0x0009d000-0x0009dfff] [ 0.000000] PM: Registered nosave memory: [mem 0x0009e000-0x0009ffff] [ 0.000000] PM: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 0.000000] PM: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 0.000000] e820: [mem 0x80000000-0xfffbbfff] available for PCI devices [ 0.000000] Booting paravirtualized kernel on KVM [ 0.000000] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 1910969940391419 ns [ 0.000000] setup_percpu: NR_CPUS:1024 nr_cpumask_bits:2 nr_cpu_ids:2 nr_node_ids:1 [ 0.000000] percpu: Embedded 44 pages/cpu @ffff891f7fc00000 s139672 r8192 d32360 u1048576 [ 0.000000] kvm-stealtime: cpu 0, msr 7fc16240 [ 0.000000] Built 1 zonelists, mobility grouping on. Total pages: 515972 [ 0.000000] Policy zone: DMA32 [ 0.000000] Kernel command line: BOOT_IMAGE=/vmlinuz-4.14.13-300.fc27.x86_64 root=/dev/mapper/fedora-root ro rd.lvm.lv=fedora/root rd.lvm.lv=fedora/swap rhgb LANG=en_US.UTF-8 console=tty0 console=ttyS0 [ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes) [ 0.000000] Memory: 2018548K/2096740K available (12300K kernel code, 1546K rwdata, 3728K rodata, 2108K init, 1364K bss, 78192K reserved, 0K cma-reserved) [ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=1 [ 0.000000] Kernel/User page tables isolation: enabled [ 0.000000] ftrace: allocating 35499 entries in 139 pages [ 0.001000] Hierarchical RCU implementation. [ 0.001000] RCU restricting CPUs from NR_CPUS=1024 to nr_cpu_ids=2. [ 0.001000] Tasks RCU enabled. [ 0.001000] RCU: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=2 [ 0.001000] NR_IRQS: 65792, nr_irqs: 440, preallocated irqs: 16 [ 0.001000] Offload RCU callbacks from CPUs: . [ 0.001000] Console: colour VGA+ 80x25 [ 0.001000] console [tty0] enabled [ 0.001000] console [ttyS0] enabled [ 0.001029] tsc: Detected 3192.954 MHz processor [ 0.003140] Calibrating delay loop (skipped) preset value.. 6385.90 BogoMIPS (lpj=3192954) [ 0.005015] pid_max: default: 32768 minimum: 301 [ 0.007065] ACPI: Core revision 20170728 [ 0.012257] ACPI: 3 ACPI AML tables successfully acquired and loaded [ 0.014182] Security Framework initialized [ 0.016033] Yama: becoming mindful. [ 0.018023] SELinux: Initializing. [ 0.027871] Dentry cache hash table entries: 262144 (order: 9, 2097152 bytes) [ 0.033417] Inode-cache hash table entries: 131072 (order: 8, 1048576 bytes) [ 0.035181] Mount-cache hash table entries: 4096 (order: 3, 32768 bytes) [ 0.037117] Mountpoint-cache hash table entries: 4096 (order: 3, 32768 bytes) [ 0.040551] Disabled fast string operations [ 0.042121] mce: CPU supports 10 MCE banks [ 0.044238] Last level iTLB entries: 4KB 0, 2MB 0, 4MB 0 [ 0.046011] Last level dTLB entries: 4KB 0, 2MB 0, 4MB 0, 1GB 0 [ 0.048013] Spectre V2 mitigation: Vulnerable: Minimal generic ASM retpoline [ 0.051181] Freeing SMP alternatives memory: 36K [ 0.056600] smpboot: Max logical packages: 2 [ 0.062819] ..TIMER: vector=0x30 apic1=0 pin1=2 apic2=-1 pin2=-1 [ 0.063000] smpboot: CPU0: Intel Common KVM processor (family: 0xf, model: 0x6, stepping: 0x1) [ 0.065264] Performance Events: unsupported Netburst CPU model 6 no PMU driver, software events only. [ 0.067283] Hierarchical SRCU implementation. [ 0.071996] NMI watchdog: Perf event create on CPU 0 failed with -2 [ 0.073011] NMI watchdog: Perf NMI watchdog permanently disabled [ 0.075272] smp: Bringing up secondary CPUs ... [ 0.078795] x86: Booting SMP configuration: [ 0.079021] .... node #0, CPUs: #1 [ 0.001000] kvm-clock: cpu 1, msr 0:7ffc2041, secondary cpu clock [ 0.001000] Disabled fast string operations [ 0.111083] kvm-stealtime: cpu 1, msr 7fd16240 [ 0.117019] smp: Brought up 1 node, 2 CPUs [ 0.118023] smpboot: Total of 2 processors activated (12771.81 BogoMIPS) [ 0.125008] devtmpfs: initialized [ 0.127172] x86/mm: Memory block size: 128MB [ 0.130505] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 1911260446275000 ns [ 0.132028] futex hash table entries: 512 (order: 3, 32768 bytes) [ 0.134409] pinctrl core: initialized pinctrl subsystem [ 0.137427] RTC time: 21:17:11, date: 01/12/18 [ 0.139903] NET: Registered protocol family 16 [ 0.143042] cpuidle: using governor menu [ 0.147760] ACPI: bus type PCI registered [ 0.149005] acpiphp: ACPI Hot Plug PCI Controller Driver version: 0.5 [ 0.152346] PCI: Using configuration type 1 for base access [ 0.159292] HugeTLB registered 2.00 MiB page size, pre-allocated 0 pages [ 0.163359] ACPI: Added _OSI(Module Device) [ 0.165008] ACPI: Added _OSI(Processor Device) [ 0.166017] ACPI: Added _OSI(3.0 _SCP Extensions) [ 0.168006] ACPI: Added _OSI(Processor Aggregator Device) [ 0.175536] ACPI: Interpreter enabled [ 0.177039] ACPI: (supports S0 S5) [ 0.179008] ACPI: Using IOAPIC for interrupt routing [ 0.180064] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug [ 0.183000] ACPI: Enabled 16 GPEs in block 00 to 0F [ 0.193781] ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-ff]) [ 0.194025] acpi PNP0A03:00: _OSC: OS supports [ASPM ClockPM Segments MSI] [ 0.195023] acpi PNP0A03:00: _OSC failed (AE_NOT_FOUND); disabling ASPM [ 0.196033] acpi PNP0A03:00: fail to add MMCONFIG information, can't access extended PCI configuration space under this bridge. [ 0.199739] acpiphp: Slot [1] registered [ 0.200107] acpiphp: Slot [2] registered [ 0.201078] acpiphp: Slot [3] registered [ 0.202073] acpiphp: Slot [4] registered [ 0.204013] acpiphp: Slot [5] registered [ 0.205076] acpiphp: Slot [6] registered [ 0.206100] acpiphp: Slot [7] registered [ 0.207071] acpiphp: Slot [8] registered [ 0.208091] acpiphp: Slot [9] registered [ 0.210017] acpiphp: Slot [10] registered [ 0.212048] acpiphp: Slot [11] registered [ 0.213108] acpiphp: Slot [12] registered [ 0.214000] acpiphp: Slot [13] registered [ 0.214088] acpiphp: Slot [14] registered [ 0.215092] acpiphp: Slot [15] registered [ 0.216079] acpiphp: Slot [16] registered [ 0.218037] acpiphp: Slot [17] registered [ 0.219080] acpiphp: Slot [18] registered [ 0.221066] acpiphp: Slot [19] registered [ 0.222077] acpiphp: Slot [20] registered [ 0.223073] acpiphp: Slot [21] registered [ 0.224076] acpiphp: Slot [22] registered [ 0.226014] acpiphp: Slot [23] registered [ 0.227086] acpiphp: Slot [24] registered [ 0.229032] acpiphp: Slot [25] registered [ 0.231030] acpiphp: Slot [26] registered [ 0.232128] acpiphp: Slot [27] registered [ 0.233076] acpiphp: Slot [28] registered [ 0.235139] acpiphp: Slot [29] registered [ 0.236089] acpiphp: Slot [30] registered [ 0.237071] acpiphp: Slot [31] registered [ 0.239000] PCI host bridge to bus 0000:00 [ 0.239013] pci_bus 0000:00: root bus resource [io 0x0000-0x0cf7 window] [ 0.240028] pci_bus 0000:00: root bus resource [io 0x0d00-0xffff window] [ 0.242032] pci_bus 0000:00: root bus resource [mem 0x000a0000-0x000bffff window] [ 0.244010] pci_bus 0000:00: root bus resource [mem 0xe0000000-0xfebfffff window] [ 0.245011] pci_bus 0000:00: root bus resource [bus 00-ff] [ 0.253711] pci 0000:00:01.1: legacy IDE quirk: reg 0x10: [io 0x01f0-0x01f7] [ 0.254015] pci 0000:00:01.1: legacy IDE quirk: reg 0x14: [io 0x03f6] [ 0.255019] pci 0000:00:01.1: legacy IDE quirk: reg 0x18: [io 0x0170-0x0177] [ 0.256014] pci 0000:00:01.1: legacy IDE quirk: reg 0x1c: [io 0x0376] [ 0.262301] pci 0000:00:01.3: quirk: [io 0xb000-0xb03f] claimed by PIIX4 ACPI [ 0.263059] pci 0000:00:01.3: quirk: [io 0xb100-0xb10f] claimed by PIIX4 SMB [ 0.326959] ACPI: PCI Interrupt Link [LNKA] (IRQs 5 *10 11) [ 0.328155] ACPI: PCI Interrupt Link [LNKB] (IRQs 5 *10 11) [ 0.330160] ACPI: PCI Interrupt Link [LNKC] (IRQs 5 10 *11) [ 0.332163] ACPI: PCI Interrupt Link [LNKD] (IRQs 5 10 *11) [ 0.334046] ACPI: PCI Interrupt Link [LNKS] (IRQs *9) [ 0.339070] pci 0000:00:02.0: vgaarb: setting as boot VGA device [ 0.340000] pci 0000:00:02.0: vgaarb: VGA device added: decodes=io+mem,owns=io+mem,locks=none [ 0.340020] pci 0000:00:02.0: vgaarb: bridge control possible [ 0.341006] vgaarb: loaded [ 0.345077] SCSI subsystem initialized [ 0.348291] ACPI: bus type USB registered [ 0.350196] usbcore: registered new interface driver usbfs [ 0.352048] usbcore: registered new interface driver hub [ 0.355022] usbcore: registered new device driver usb [ 0.358186] EDAC MC: Ver: 3.0.0 [ 0.362305] PCI: Using ACPI for IRQ routing [ 0.367116] NetLabel: Initializing [ 0.368008] NetLabel: domain hash size = 128 [ 0.369010] NetLabel: protocols = UNLABELED CIPSOv4 CALIPSO [ 0.371093] NetLabel: unlabeled traffic allowed by default [ 0.374249] clocksource: Switched to clocksource kvm-clock [ 0.441047] VFS: Disk quotas dquot_6.6.0 [ 0.446519] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes) [ 0.454161] pnp: PnP ACPI init [ 0.460204] pnp: PnP ACPI: found 5 devices [ 0.487183] clocksource: acpi_pm: mask: 0xffffff max_cycles: 0xffffff, max_idle_ns: 2085701024 ns [ 0.500887] NET: Registered protocol family 2 [ 0.512619] TCP established hash table entries: 16384 (order: 5, 131072 bytes) [ 0.524218] TCP bind hash table entries: 16384 (order: 6, 262144 bytes) [ 0.532472] TCP: Hash tables configured (established 16384 bind 16384) [ 0.540296] UDP hash table entries: 1024 (order: 3, 32768 bytes) [ 0.552314] UDP-Lite hash table entries: 1024 (order: 3, 32768 bytes) [ 0.561106] NET: Registered protocol family 1 [ 0.567117] pci 0000:00:00.0: Limiting direct PCI/PCI transfers [ 0.574096] pci 0000:00:01.0: PIIX3: Enabling Passive Release [ 0.586198] pci 0000:00:01.0: Activating ISA DMA hang workarounds [ 0.593935] pci 0000:00:02.0: Video device with shadowed ROM at [mem 0x000c0000-0x000dffff] [ 0.606572] ACPI: PCI Interrupt Link [LNKD] enabled at IRQ 11 [ 0.622820] Unpacking initramfs... [ 2.335287] Freeing initrd memory: 21020K [ 2.344531] audit: initializing netlink subsys (disabled) [ 2.351390] audit: type=2000 audit(1515791833.710:1): state=initialized audit_enabled=0 res=1 [ 2.352623] Initialise system trusted keyrings [ 2.352714] Key type blacklist registered [ 2.353238] workingset: timestamp_bits=36 max_order=19 bucket_order=0 [ 2.359953] zbud: loaded [ 2.910025] PANIC: double fault, error_code: 0x0 [ 2.910025] CPU: 1 PID: 56 Comm: modprobe Not tainted 4.14.13-300.fc27.x86_64 #1 [ 2.910025] Hardware name: Red Hat KVM, BIOS 0.5.1 01/01/2007 [ 2.910025] task: ffff891f78dc3c00 task.stack: ffffa6eac0594000 [ 2.910025] RIP: 0010:vprintk_default+0x5/0x30 [ 2.910025] RSP: 0000:fffffe000002e000 EFLAGS: 00010046 [ 2.910025] RAX: 0000000000000000 RBX: fffffe000002e118 RCX: 0000000000000001 [ 2.910025] RDX: 0000000000000000 RSI: fffffe000002e018 RDI: ffffffffbe0715a0 [ 2.910025] RBP: fffffe000002e008 R08: ffffffffbe0bb565 R09: ffffffffbe07159b [ 2.910025] R10: fffffe000002e080 R11: 0000000000000000 R12: ffffffffbe070fdd [ 2.910025] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 2.910025] FS: 0000000000000000(0000) GS:ffff891f7fd00000(0000) knlGS:0000000000000000 [ 2.910025] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 2.910025] CR2: fffffe000002dff8 CR3: 0000000078da6000 CR4: 00000000000006e0 [ 2.910025] Call Trace: [ 2.910025] [ 2.910025] ? vprintk_func+0x27/0x60 [ 2.910025] printk+0x52/0x6e [ 2.910025] __die+0x6b/0xe0 [ 2.910025] die+0x2f/0x50 [ 2.910025] do_general_protection+0x149/0x160 [ 2.910025] general_protection+0x2c/0x60 [ 2.910025] RIP: 0010:swapgs_restore_regs_and_return_to_usermode+0x6f/0x80 [ 2.910025] RSP: 0000:fffffe000002e1c8 EFLAGS: 00000006 [ 2.910025] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 2.910025] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000078da7800 [ 2.910025] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 2.910025] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 2.910025] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 2.910025] [ 2.910025] Code: eb 01 e8 ef 9c 7a 00 e8 1a 23 06 00 e8 b5 19 06 00 83 fb ff 75 e4 8b 5d c8 e9 d2 fc ff ff 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 <55> 49 89 f8 49 89 f1 31 c9 31 d2 be ff ff ff ff 48 89 e5 31 ff [ 2.910025] Kernel panic - not syncing: Machine halted. [ 2.910025] Kernel Offset: 0x3c000000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff) [ 2.910025] ---[ end Kernel panic - not syncing: Machine halted. Configs and other patches are at https://git.kernel.org/pub/scm/linux/kernel/git/jwboyer/fedora.git/log/?h=f27 Note that we did bring in the retpoline patches for 4.14.13 but the report and panic was the same as with 4.14.11. Thanks, Laura