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Re: [Xen-devel] [BUG] Xen 4.3.0 and Linux 3.12.9/3.13.5 dom0 crash: "Fatal exception in interrupt"



On Sat, Mar 15, 2014 at 10:01:06PM +0200, edwin wrote:
> Hi,
> 

Hello,

> I was testing a small application using OpenMirage [1] on Xen, and dom0 
> crashed.
> This reproduces everytime in both of these situations:
>  * Xen 4.3.0 amd64 on bare metal + Linux 3.13.5 amd64 as dom0
>

First obvious test would be to update Xen to a more recent version..
So Xen 4.3.2, or Xen 4.4.0, and see if that helps. Both have a lot of bugfixes 
since 4.3.0.


>  * Linux 3.14-rc5 as host, Xen 4.3.0 amd64 nested on KVM + Linux 3.12.5 i686 
> as dom0
> 
> Steps to reproduce:
>  * boot Xen, dom0 (I used Xen 4.3.0, and Debian jessie on an amd64 host)
>  * start network1.xl, note the IP it receives via DHCP: xm create -c 
> network1.xl
>  * start network2.xl, note the IP it receives via DHCP: xm create -c 
> network2.xl
>  * run: "echo -n <IP1> | nc <IP2> 8000" on dom0 to start the application and 
> trigger the panic, in the attached logs this command was:
> echo -n 192.168.122.180 | nc 192.168.122.181 8000
> 
> 
> [   87.779435] vif vif-2-0 vif2.0: Cross page boundary, txp->offset: b68, 
> size: 1460
> [   87.780570] vif vif-2-0 vif2.0: fatal error; disabling device
> [   87.781403] BUG: scheduling while atomic: swapper/0/0/0x00000100
> [   87.782417] bad: scheduling from the idle thread!
> [...]
> [   87.848080] BUG: unable to handle kernel NULL pointer dereference at   
> (null)
> 

Although this hints that there's a bug in the dom0 kernel.
Did you try the latest 3.10.x kernel as dom0? 

-- Pasi


> Note: this crash seems to be similar to 
> https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=701744#88, but that bug is 
> marked as fixed (not clear if they fixed
> the domU kernel to not trigger the crash, or also fixed dom0).
> 
> The mir-network.xen application listens on port 9 and discards all data, and 
> listens on port 8000
> for an IP address, connects to it and sends 1024 MB of data, and measures the 
> time it takes.
> It is possible that this application has a bug, so I'll open a ticket on 
> OpenMirage's issue tracker as well, but it shouldn't be able to trigger a 
> kernel panic in dom0.
> 
> You can find the info requested in [2], taken prior to the crash here:
>  * http://www.etorok.net/xendom0bug/xen-on-metal.tar.gz
>  * http://www.etorok.net/xendom0bug/xen-nested-on-kvm.tar.gz
>  * the actual openmirage domU (uni)kernel: 
> http://www.etorok.net/xendom0bug/mir-network.xen
>  * the .xl files: http://www.etorok.net/xendom0bug/network1.xl 
> http://www.etorok.net/xendom0bug/network2.xl
>  * the source code for mir-network.xen (based on mirage-skeleton/network): 
> http://www.etorok.net/xendom0bug/network.tar.gz
> 
> I tried to get a crash-dump from the Xen serial console, but it was not 
> responsive after dom0 crashed (tried ctrl-a 3 times, or booting with 
> conswitch=ax, or pressing
> ctrl-a 3 times before the crash, without success: serial console was not 
> responsive after Xen printed the message about the dom0 crash).
> Let me know if you need additional info.
> 
> [1] http://openmirage.org
> [2] http://wiki.xenproject.org/wiki/Reporting_Bugs_against_Xen
> 
> Here is the output on the (virtual) serial port when running Xen nested 
> inside KVM:
> (XEN) Xen version 4.3.0 (Debian 4.3.0-3+b1) (buildd-babin@xxxxxxxxxxxxxxxxx) 
> (gcc (Debian 4.8.2-7) 4.8.2) debug=n Wed Dec  4 07:58:40 UTC 2013
> (XEN) Bootloader: GRUB 2.00-22
> (XEN) Command line: placeholder dom0_max_vcpus=1 dom0_vcpus_pin loglvl=all 
> guest_loglvl=all com1=115200,8n1 console=com1,vga noreboot
> (XEN) Video information:
> (XEN)  VGA is text mode 80x25, font 8x16
> (XEN) Disc information:
> (XEN)  Found 1 MBR signatures
> (XEN)  Found 1 EDD information structures
> (XEN) Xen-e820 RAM map:
> (XEN)  0000000000000000 - 000000000009fc00 (usable)
> (XEN)  000000000009fc00 - 00000000000a0000 (reserved)
> (XEN)  00000000000f0000 - 0000000000100000 (reserved)
> (XEN)  0000000000100000 - 00000000dfffe000 (usable)
> (XEN)  00000000dfffe000 - 00000000e0000000 (reserved)
> (XEN)  00000000feffc000 - 00000000ff000000 (reserved)
> (XEN)  00000000fffc0000 - 0000000100000000 (reserved)
> (XEN)  0000000100000000 - 0000000120000000 (usable)
> (XEN) ACPI: RSDP 000F1830, 0014 (r0 BOCHS )
> (XEN) ACPI: RSDT DFFFFCE0, 0034 (r1 BOCHS  BXPCRSDT        1 BXPC        1)
> (XEN) ACPI: FACP DFFFF177, 0074 (r1 BOCHS  BXPCFACP        1 BXPC        1)
> (XEN) ACPI: DSDT DFFFE040, 1137 (r1   BXPC   BXDSDT        1 INTL 20130823)
> (XEN) ACPI: FACS DFFFE000, 0040
> (XEN) ACPI: SSDT DFFFF1EB, 0A1D (r1 BOCHS  BXPCSSDT        1 BXPC        1)
> (XEN) ACPI: APIC DFFFFC08, 00A0 (r1 BOCHS  BXPCAPIC        1 BXPC        1)
> (XEN) ACPI: HPET DFFFFCA8, 0038 (r1 BOCHS  BXPCHPET        1 BXPC        1)
> (XEN) System RAM: 4095MB (4193908kB)
> (XEN) No NUMA configuration found
> (XEN) Faking a node at 0000000000000000-0000000120000000
> (XEN) Domain heap initialised
> (XEN) found SMP MP-table at 000f1a90
> (XEN) DMI 2.4 present.
> (XEN) Using APIC driver default
> (XEN) ACPI: PM-Timer IO Port: 0xb008
> (XEN) ACPI: SLEEP INFO: pm1x_cnt[b004,0], pm1x_evt[b000,0]
> (XEN) ACPI:             wakeup_vec[dfffe00c], vec_size[20]
> (XEN) ACPI: Local APIC address 0xfee00000
> (XEN) ACPI: LAPIC (acpi_id[0x00] lapic_id[0x00] enabled)
> (XEN) Processor #0 5:2 APIC version 20
> (XEN) ACPI: LAPIC (acpi_id[0x01] lapic_id[0x01] enabled)
> (XEN) Processor #1 5:2 APIC version 20
> (XEN) ACPI: LAPIC (acpi_id[0x02] lapic_id[0x02] enabled)
> (XEN) Processor #2 5:2 APIC version 20
> (XEN) ACPI: LAPIC (acpi_id[0x03] lapic_id[0x03] enabled)
> (XEN) Processor #3 5:2 APIC version 20
> (XEN) ACPI: LAPIC (acpi_id[0x04] lapic_id[0x04] enabled)
> (XEN) Processor #4 5:2 APIC version 20
> (XEN) ACPI: LAPIC (acpi_id[0x05] lapic_id[0x05] enabled)
> (XEN) Processor #5 5:2 APIC version 20
> (XEN) ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1])
> (XEN) ACPI: IOAPIC (id[0x00] address[0xfec00000] gsi_base[0])
> (XEN) IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23
> (XEN) ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl)
> (XEN) ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level)
> (XEN) ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level)
> (XEN) ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level)
> (XEN) ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level)
> (XEN) ACPI: IRQ0 used by override.
> (XEN) ACPI: IRQ2 used by override.
> (XEN) ACPI: IRQ5 used by override.
> (XEN) ACPI: IRQ9 used by override.
> (XEN) ACPI: IRQ10 used by override.
> (XEN) ACPI: IRQ11 used by override.
> (XEN) Enabling APIC mode:  Flat.  Using 1 I/O APICs
> (XEN) ACPI: HPET id: 0x8086a201 base: 0xfed00000
> (XEN) ERST table was not found
> (XEN) Using ACPI (MADT) for SMP configuration information
> (XEN) SMP: Allowing 6 CPUs (0 hotplug CPUs)
> (XEN) IRQ limits: 24 GSI, 1144 MSI/MSI-X
> (XEN) Using scheduler: SMP Credit Scheduler (credit)
> (XEN) Detected 4013.732 MHz processor.
> (XEN) Initing memory sharing.
> (XEN) traps.c:3061: GPF (0000): ffff82c4c019e813 -> ffff82c4c0218f17
> (XEN) xstate_init: using cntxt_size: 0x340 and states: 0x7
> (XEN) AMD Fam15h machine check reporting enabled
> (XEN) AMD-Vi: IOMMU not found!
> (XEN) I/O virtualisation disabled
> (XEN) ENABLING IO-APIC IRQs
> (XEN)  -> Using new ACK method
> (XEN) ..TIMER: vector=0xF0 apic1=0 pin1=2 apic2=-1 pin2=-1
> (XEN) Platform timer is 100.000MHz HPET
> (XEN) Allocated console ring of 64 KiB.
> (XEN) HVM: ASIDs enabled.
> (XEN) SVM: Supported advanced features:
> (XEN)  - none
> (XEN) HVM: SVM enabled
> (XEN) HVM: Hardware Assisted Paging (HAP) not detected
> (XEN) traps.c:3061: GPF (0000): ffff82c4c019e813 -> ffff82c4c0218f17
> (XEN) microcode: CPU1 collect_cpu_info: patch_id=0x1000065
> (XEN) traps.c:3061: GPF (0000): ffff82c4c019e813 -> ffff82c4c0218f17
> (XEN) microcode: CPU2 collect_cpu_info: patch_id=0x1000065
> (XEN) traps.c:3061: GPF (0000): ffff82c4c019e813 -> ffff82c4c0218f17
> (XEN) microcode: CPU3 collect_cpu_info: patch_id=0x1000065
> (XEN) traps.c:3061: GPF (0000): ffff82c4c019e813 -> ffff82c4c0218f17
> (XEN) microcode: CPU4 collect_cpu_info: patch_id=0x1000065
> (XEN) traps.c:3061: GPF (0000): ffff82c4c019e813 -> ffff82c4c0218f17
> (XEN) Brought up 6 CPUs
> (XEN) microcode: CPU5 collect_cpu_info: patch_id=0x1000065
> (XEN) ACPI sleep modes: S3
> (XEN) mcheck_poll: Machine check polling timer started.
> (XEN) *** LOADING DOMAIN 0 ***
> (XEN)  Xen  kernel: 64-bit, lsb, compat32
> (XEN)  Dom0 kernel: 32-bit, PAE, lsb, paddr 0x1000000 -> 0x1920000
> (XEN) PHYSICAL MEMORY ARRANGEMENT:
> (XEN)  Dom0 alloc.:   0000000114000000->0000000118000000 (978076 pages to be 
> allocated)
> (XEN)  Init. ramdisk: 000000011e0af000->000000011ffff200
> (XEN) VIRTUAL MEMORY ARRANGEMENT:
> (XEN)  Loaded kernel: 00000000c1000000->00000000c1920000
> (XEN)  Init. ramdisk: 00000000c1920000->00000000c3870200
> (XEN)  Phys-Mach map: 00000000c3871000->00000000c3c43fb4
> (XEN)  Start info:    00000000c3c44000->00000000c3c444b4
> (XEN)  Page tables:   00000000c3c45000->00000000c3c6a000
> (XEN)  Boot stack:    00000000c3c6a000->00000000c3c6b000
> (XEN)  TOTAL:         00000000c0000000->00000000c4000000
> (XEN)  ENTRY ADDRESS: 00000000c15a524c
> (XEN) Dom0 has maximum 1 VCPUs
> (XEN) Scrubbing Free RAM: .done.
> (XEN) Initial low memory virq threshold set at 0x4000 pages.
> (XEN) Std. Loglevel: All
> (XEN) Guest Loglevel: All
> (XEN) Xen is relinquishing VGA console.
> (XEN) *** Serial input -> DOM0 (type 'CTRL-a' three times to switch input to 
> Xen)
> (XEN) Freed 260kB init memory.
> mapping kernel into physical memory
> about to get started...
> [    0.000000] Reserving virtual address space above 0xff800000
> [    0.000000] Initializing cgroup subsys cpuset
> [    0.000000] Initializing cgroup subsys cpu
> [    0.000000] Initializing cgroup subsys cpuacct
> [    0.000000] Linux version 3.12-1-686-pae (debian-kernel@xxxxxxxxxxxxxxxx) 
> (gcc version 4.8.2 (Debian 4.8.2-14) ) #1 SMP Debian 3.12.9-1 (2014-02-01)
> [    0.000000] Freeing 9f-100 pfn range: 97 pages freed
> [    0.000000] Freeing dfffe-f4bed pfn range: 84975 pages freed
> [    0.000000] Released 85072 pages of unused memory
> [    0.000000] Set 131171 page(s) to 1-1 mapping
> [    0.000000] Populating 100000-114c50 pfn range: 85072 pages added
> [    0.000000] e820: BIOS-provided physical RAM map:
> [    0.000000] Xen: [mem 0x0000000000000000-0x000000000009efff] usable
> [    0.000000] Xen: [mem 0x000000000009fc00-0x00000000000fffff] reserved
> [    0.000000] Xen: [mem 0x0000000000100000-0x00000000dfffdfff] usable
> [    0.000000] Xen: [mem 0x00000000dfffe000-0x00000000dfffffff] reserved
> [    0.000000] Xen: [mem 0x00000000fee00000-0x00000000fee00fff] reserved
> [    0.000000] Xen: [mem 0x00000000feffc000-0x00000000feffffff] reserved
> [    0.000000] Xen: [mem 0x00000000fffc0000-0x00000000ffffffff] reserved
> [    0.000000] Xen: [mem 0x0000000100000000-0x000000011fffffff] usable
> [    0.000000] bootconsole [xenboot0] enabled
> (XEN) traps.c:3061: GPF (0000): ffff82c4c0186a91 -> ffff82c4c0218daa
> (XEN) traps.c:3061: GPF (0000): ffff82c4c0186a91 -> ffff82c4c0218daa
> [    0.050389] Failed to access perfctr msr (MSR c0010001 is ffffffffffffffff)
> (XEN) PCI add device 0000:00:00.0
> (XEN) PCI add device 0000:00:01.0
> (XEN) PCI add device 0000:00:01.1
> (XEN) PCI add device 0000:00:01.2
> (XEN) PCI add device 0000:00:01.3
> (XEN) PCI add device 0000:00:02.0
> (XEN) PCI add device 0000:00:03.0
> (XEN) PCI add device 0000:00:04.0
> (XEN) PCI add device 0000:00:05.0
> [    0.113256] acpi LNXCPU:00: Invalid PBLK length [0]
> Loading, please wait...
> INIT: version 2.88 booting
> [info] Using makefile-style concurrent boot in runlevel S.
> [ ok ] Starting the hotplug events dispatcher: udevd.
> [ ok ] Synthesizing the initial hotplug events...done.
> [....] Waiting for /dev to be fully populated...[    4.957171] Error: Driver 
> 'pcspkr' is already registered, aborting...
> done.
> [ ok ] Setting preliminary keymap...done.
> [ ok ] Setting up LVM Volume Groups...done.
> [ ok ] Activating swap...done.
> [....] Checking root file system...fsck from util-linux 2.20.1
> /dev/sda1: clean, 37968/244320 files, 334908/976384 blocks
> done.
> [ ok ] Activating lvm and md swap...done.
> [....] Checking file systems...fsck from util-linux 2.20.1
> done.
> [info] Loading kernel module loop.
> [ ok ] Cleaning up temporary files... /tmp.
> [ ok ] Mounting local filesystems...done.
> [ ok ] Activating swapfile swap...done.
> [ ok ] Cleaning up temporary files....
> [ ok ] Setting kernel variables ...done.
> [....] Configuring network interfaces...
> Waiting for a max of 0 seconds for eth0 to become available.
> 
> Waiting for xenbr0 to get ready (MAXWAIT is 2 seconds).
> Internet Systems Consortium DHCP Client 4.2.4
> Copyright 2004-2012 Internet Systems Consortium.
> All rights reserved.
> For info, please visit https://www.isc.org/software/dhcp/
> 
> Listening on LPF/xenbr0/52:54:00:01:1e:19
> Sending on   LPF/xenbr0/52:54:00:01:1e:19
> Sending on   Socket/fallback
> DHCPREQUEST on xenbr0 to 255.255.255.255 port 67
> DHCPACK from 192.168.122.1
> bound to 192.168.122.33 -- renewal in 1721 seconds.
> ifup: interface xenbr0 already configured
> done.
> [ ok ] Cleaning up temporary files....
> [info] Setting console screen modes.
> setterm: cannot (un)set powersave mode: Inappropriate ioctl for device
> [ ok 0][14;30][....] Setting up console font and keymap...done.
> [ ok ] Setting up X socket directories... /tmp/.X11-unix /tmp/.ICE-unix.
> INIT: Entering runlevel: 2
> [info] Using makefile-style concurrent boot in runlevel 2.
> [ ok ] Starting enhanced syslogd: rsyslogd.
> [ ok ] Starting system message bus: dbus.
> [ ok ] Starting periodic command scheduler: cron.
> [ ok ] Starting ACPI services....
> [ ok ] Starting OpenBSD Secure Shell server: sshd.
> [ ok ] Starting Xen daemons: xenfs xenstored xenconsoled xend.
> [   87.779435] vif vif-2-0 vif2.0: Cross page boundary, txp->offset: b68, 
> size: 1460
> [   87.780570] vif vif-2-0 vif2.0: fatal error; disabling device
> [   87.781403] BUG: scheduling while atomic: swapper/0/0/0x00000100
> [   87.782417] bad: scheduling from the idle thread!
> [   87.783736] BUG: scheduling while atomic: swapper/0/0/0x00000100
> [   87.784744] bad: scheduling from the idle thread!
> [   87.786713] BUG: scheduling while atomic: swapper/0/0/0x00000100
> [   87.787746] bad: scheduling from the idle thread!
> [   87.789042] BUG: scheduling while atomic: swapper/0/0/0x00000100
> [   87.790041] bad: scheduling from the idle thread!
> [   87.790822] BUG: scheduling while atomic: swapper/0/0/0x00000100
> [   87.791808] bad: scheduling from the idle thread!
> [   87.793570] BUG: scheduling while atomic: swapper/0/0/0x00000100
> [   87.794583] bad: scheduling from the idle thread!
> [   87.795360] BUG: scheduling while atomic: swapper/0/0/0x00000100
> [   87.796350] bad: scheduling from the idle thread!
> [   87.798834] BUG: scheduling while atomic: swapper/0/0/0x00000100
> [   87.799850] bad: scheduling from the idle thread!
> [   87.801134] BUG: scheduling while atomic: swapper/0/0/0x00000100
> [   87.802129] bad: scheduling from the idle thread!
> [   87.802909] BUG: scheduling while atomic: swapper/0/0/0x00000100
> [   87.803888] bad: scheduling from the idle thread!
> [   87.805593] BUG: scheduling while atomic: swapper/0/0/0x00000100
> [   87.806611] bad: scheduling from the idle thread!
> [   87.807389] BUG: scheduling while atomic: swapper/0/0/0x00000100
> [   87.808405] bad: scheduling from the idle thread!
> [   87.810829] BUG: scheduling while atomic: swapper/0/0/0x00000100
> [   87.811837] bad: scheduling from the idle thread!
> [   87.813114] BUG: scheduling while atomic: swapper/0/0/0x00000100
> [   87.814113] bad: scheduling from the idle thread!
> [   87.814893] BUG: scheduling while atomic: swapper/0/0/0x00000100
> [   87.815870] bad: scheduling from the idle thread!
> [   87.817605] BUG: scheduling while atomic: swapper/0/0/0x00000100
> [   87.818625] bad: scheduling from the idle thread!
> [   87.819408] BUG: scheduling while atomic: swapper/0/0/0x00000100
> [   87.820401] bad: scheduling from the idle thread!
> [   87.822853] BUG: scheduling while atomic: swapper/0/0/0x00000100
> [   87.823850] bad: scheduling from the idle thread!
> [   87.825104] BUG: scheduling while atomic: swapper/0/0/0x00000100
> [   87.826114] bad: scheduling from the idle thread!
> [   87.826901] BUG: scheduling while atomic: swapper/0/0/0x00000100
> [   87.827906] bad: scheduling from the idle thread!
> [   87.829645] BUG: scheduling while atomic: swapper/0/0/0x00000100
> [   87.830668] bad: scheduling from the idle thread!
> [   87.831445] BUG: scheduling while atomic: swapper/0/0/0x00000100
> [   87.832439] bad: scheduling from the idle thread!
> [   87.834840] BUG: scheduling while atomic: swapper/0/0/0x00000100
> [   87.835852] bad: scheduling from the idle thread!
> [   87.837120] BUG: scheduling while atomic: swapper/0/0/0x00000100
> [   87.838139] bad: scheduling from the idle thread!
> [   87.838918] BUG: scheduling while atomic: swapper/0/0/0x00000100
> [   87.839879] bad: scheduling from the idle thread!
> [   87.841588] BUG: scheduling while atomic: swapper/0/0/0x00000100
> [   87.842587] bad: scheduling from the idle thread!
> [   87.843346] BUG: scheduling while atomic: swapper/0/0/0x00000100
> [   87.844310] bad: scheduling from the idle thread!
> [   87.848080] BUG: unable to handle kernel NULL pointer dereference at   
> (null)
> [   87.849123] IP: [<  (null)>]   (null)
> [   87.849675] *pdpt = 000000000359e027 *pde = 0000000000000000 
> [   87.850535] Oops: 0010 [#1] SMP 
> [   87.851030] Modules linked in: xt_physdev iptable_filter ip_tables 
> x_tables xen_netback fuse btrfs raid6_pq xor ufs qnx4 hfsplus hfs minix ntfs 
> vfat msdos fat jfs xfs libcrc32c xen_gntdev xen_evtchn xenfs xen_privcmd 
> bridge stp llc loop crc32_pclmul crc32c_intel aesni_intel snd_pcm 
> snd_page_alloc aes_i586 snd_timer xts lrw gf128mul ablk_helper cryptd snd 
> soundcore joydev evdev pcspkr psmouse virtio_balloon serio_raw parport_pc 
> parport ttm drm_kms_helper processor thermal_sys drm button i2c_piix4 
> i2c_core ext4 crc16 mbcache jbd2 dm_mod sd_mod sg sr_mod crc_t10dif 
> crct10dif_common cdrom ata_generic hid_generic usbhid hid floppy ata_piix 
> uhci_hcd ehci_hcd virtio_pci virtio_ring virtio sym53c8xx scsi_transport_spi 
> e1000 usbcore usb_common libata scsi_mod
> [   87.852063] CPU: 0 PID: 1616 Comm: rs:main Q:Reg Tainted: G        W    
> 3.12-1-686-pae #1 Debian 3.12.9-1
> [   87.852063] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
> [   87.852063] task: c342d240 ti: f040a000 task.ti: c3574000
> [   87.852063] EIP: 0061:[<00000000>] EFLAGS: 00010046 CPU: 0
> [   87.852063] EIP is at 0x0
> [   87.852063] EAX: f719c400 EBX: f719c400 ECX: 00000005 EDX: c1554980
> [   87.852063] ESI: c14142e0 EDI: 00000014 EBP: 35b76000 ESP: f040bf0c
> [   87.852063]  DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0069
> [   87.852063] CR0: 8005003b CR2: 00000000 CR3: 0375e000 CR4: 00040660
> [   87.852063] Stack:
> [   87.852063]  c1073930 f041f300 f719cf00 c1554980 f719c400 c1554cc2 
> c10745f4 c1554980
> [   87.852063]  f719c400 c107601b c15502c2 c1626400 c1626400 000000d1 
> f040bd4c 00000200
> [   87.852063]  c1057320 c1057354 00000000 de1f0570 b47aa8c0 b57aa8c0 
> c5480900 00060014
> [   87.852063] Call Trace:
> [   87.852063]  [<c1073930>] ? enqueue_task+0x20/0x80
> [   87.852063]  [<c10745f4>] ? ttwu_do_activate.constprop.89+0x24/0x50
> [   87.852063]  [<c107601b>] ? try_to_wake_up+0x11b/0x210
> [   87.852063]  [<c1057320>] ? ftrace_raw_output_tick_stop+0x60/0x60
> [   87.852063]  [<c1057354>] ? call_timer_fn+0x24/0xe0
> [   87.852063]  [<c1057320>] ? ftrace_raw_output_tick_stop+0x60/0x60
> [   87.852063]  [<c1057ff7>] ? run_timer_softirq+0x177/0x210
> [   87.852063]  [<c1057320>] ? ftrace_raw_output_tick_stop+0x60/0x60
> [   87.852063]  [<c10519c6>] ? __do_softirq+0xb6/0x1d0
> [   87.852063]  [<c1051910>] ? send_remote_softirq+0x40/0x40
> [   87.852063]  <IRQ> 
> [   87.852063]  [<c1051c15>] ? irq_exit+0x85/0x90
> [   87.852063]  [<c12a647d>] ? xen_evtchn_do_upcall+0x1d/0x30
> [   87.852063]  [<c14083c7>] ? xen_do_upcall+0x7/0xc
> [   87.852063] Code:  Bad EIP value.
> [   87.852063] EIP: [<00000000>] 0x0 SS:ESP 0069:f040bf0c
> [   87.852063] CR2: 0000000000000000
> [   87.852063] ---[ end trace 73de18eceba1c235 ]---
> [   87.852063] Kernel panic - not syncing: Fatal exception in interrupt
> (XEN) Domain 0 crashed: 'noreboot' set - not rebooting.
> 
> Best regards,
> --Edwin
> 
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@xxxxxxxxxxxxx
> http://lists.xen.org/xen-devel

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