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[Xen-devel] [xen-4.10-testing test] 128607: regressions - FAIL

flight 128607 xen-4.10-testing real [real]

Regressions :-(

Tests which did not succeed and are blocking,
including tests which could not be run:
 build-arm64-xsm               6 xen-build                fail REGR. vs. 128108
 build-arm64                   6 xen-build                fail REGR. vs. 128108
 build-armhf                   6 xen-build                fail REGR. vs. 128108

Tests which are failing intermittently (not blocking):
 test-amd64-i386-xl-qemuu-ovmf-amd64 15 guest-saverestore.2 fail pass in 128524
 test-amd64-amd64-xl-qemut-debianhvm-amd64-xsm 15 guest-saverestore.2 fail pass 
in 128524
 test-amd64-amd64-xl-qemuu-ws16-amd64 15 guest-saverestore.2 fail pass in 128524

Tests which did not succeed, but are not blocking:
 test-arm64-arm64-xl-credit1   1 build-check(1)               blocked  n/a
 test-armhf-armhf-xl-rtds      1 build-check(1)               blocked  n/a
 test-armhf-armhf-xl-credit2   1 build-check(1)               blocked  n/a
 build-armhf-libvirt           1 build-check(1)               blocked  n/a
 test-arm64-arm64-xl-xsm       1 build-check(1)               blocked  n/a
 test-armhf-armhf-libvirt-raw  1 build-check(1)               blocked  n/a
 test-arm64-arm64-xl-credit2   1 build-check(1)               blocked  n/a
 test-armhf-armhf-xl-arndale   1 build-check(1)               blocked  n/a
 test-arm64-arm64-xl           1 build-check(1)               blocked  n/a
 test-arm64-arm64-libvirt-xsm  1 build-check(1)               blocked  n/a
 test-armhf-armhf-xl           1 build-check(1)               blocked  n/a
 test-armhf-armhf-xl-vhd       1 build-check(1)               blocked  n/a
 test-armhf-armhf-xl-cubietruck  1 build-check(1)               blocked  n/a
 test-armhf-armhf-libvirt      1 build-check(1)               blocked  n/a
 build-arm64-libvirt           1 build-check(1)               blocked  n/a
 test-armhf-armhf-xl-credit1   1 build-check(1)               blocked  n/a
 test-armhf-armhf-xl-multivcpu  1 build-check(1)               blocked  n/a
 test-amd64-amd64-xl-qemuu-ws16-amd64 17 guest-stop   fail in 128524 never pass
 test-amd64-amd64-xl-qemuu-dmrestrict-amd64-dmrestrict 10 debian-hvm-install 
fail never pass
 test-amd64-i386-xl-qemuu-dmrestrict-amd64-dmrestrict 10 debian-hvm-install 
fail never pass
 test-amd64-amd64-libvirt-xsm 13 migrate-support-check        fail   never pass
 test-amd64-i386-libvirt      13 migrate-support-check        fail   never pass
 test-amd64-i386-libvirt-xsm  13 migrate-support-check        fail   never pass
 test-amd64-amd64-libvirt     13 migrate-support-check        fail   never pass
 test-amd64-amd64-libvirt-qemuu-debianhvm-amd64-xsm 11 migrate-support-check 
fail never pass
 test-amd64-i386-libvirt-qemuu-debianhvm-amd64-xsm 11 migrate-support-check 
fail never pass
 test-amd64-amd64-libvirt-vhd 12 migrate-support-check        fail   never pass
 test-amd64-amd64-qemuu-nested-amd 17 debian-hvm-install/l1/l2  fail never pass
 test-amd64-amd64-xl-qemuu-win7-amd64 17 guest-stop             fail never pass
 test-amd64-amd64-xl-qemut-win7-amd64 17 guest-stop             fail never pass
 test-amd64-i386-xl-qemut-win7-amd64 17 guest-stop              fail never pass
 test-amd64-i386-xl-qemuu-win7-amd64 17 guest-stop              fail never pass
 test-amd64-i386-xl-qemut-ws16-amd64 17 guest-stop              fail never pass
 test-amd64-amd64-xl-qemut-ws16-amd64 17 guest-stop             fail never pass
 test-amd64-i386-xl-qemuu-ws16-amd64 17 guest-stop              fail never pass
 test-amd64-amd64-xl-qemut-win10-i386 10 windows-install        fail never pass
 test-amd64-amd64-xl-qemuu-win10-i386 10 windows-install        fail never pass
 test-amd64-i386-xl-qemut-win10-i386 10 windows-install         fail never pass
 test-amd64-i386-xl-qemuu-win10-i386 10 windows-install         fail never pass

version targeted for testing:
 xen                  788948bebcecca69bfac47e5514f2dc351dabad9
baseline version:
 xen                  0c1d5b68e27da167a51c2ea828636c14ff5c017b

Last test of basis   128108  2018-09-26 15:03:39 Z   15 days
Failing since        128505  2018-10-08 13:07:50 Z    3 days    3 attempts
Testing same since   128524  2018-10-09 11:05:45 Z    2 days    2 attempts

People who touched revisions under test:
  Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
  Daniel Kiper <daniel.kiper@xxxxxxxxxx>
  Dario Faggioli <dfaggioli@xxxxxxxx>
  Ian Jackson <ian.jackson@xxxxxxxxxxxxx>
  Jan Beulich <jbeulich@xxxxxxxx>
  Paul Durrant <paul.durrant@xxxxxxxxxx>
  Roger Pau Monné <roger.pau@xxxxxxxxxx>
  Ross Lagerwall <ross.lagerwall@xxxxxxxxxx>
  Wei Liu <wei.liu2@xxxxxxxxxx>

 build-amd64-xsm                                              pass    
 build-arm64-xsm                                              fail    
 build-i386-xsm                                               pass    
 build-amd64-xtf                                              pass    
 build-amd64                                                  pass    
 build-arm64                                                  fail    
 build-armhf                                                  fail    
 build-i386                                                   pass    
 build-amd64-libvirt                                          pass    
 build-arm64-libvirt                                          blocked 
 build-armhf-libvirt                                          blocked 
 build-i386-libvirt                                           pass    
 build-amd64-prev                                             pass    
 build-i386-prev                                              pass    
 build-amd64-pvops                                            pass    
 build-arm64-pvops                                            pass    
 build-armhf-pvops                                            pass    
 build-i386-pvops                                             pass    
 build-amd64-rumprun                                          pass    
 build-i386-rumprun                                           pass    
 test-xtf-amd64-amd64-1                                       pass    
 test-xtf-amd64-amd64-2                                       pass    
 test-xtf-amd64-amd64-3                                       pass    
 test-xtf-amd64-amd64-4                                       pass    
 test-xtf-amd64-amd64-5                                       pass    
 test-amd64-amd64-xl                                          pass    
 test-arm64-arm64-xl                                          blocked 
 test-armhf-armhf-xl                                          blocked 
 test-amd64-i386-xl                                           pass    
 test-amd64-amd64-xl-qemut-debianhvm-amd64-xsm                fail    
 test-amd64-i386-xl-qemut-debianhvm-amd64-xsm                 pass    
 test-amd64-amd64-libvirt-qemuu-debianhvm-amd64-xsm           pass    
 test-amd64-i386-libvirt-qemuu-debianhvm-amd64-xsm            pass    
 test-amd64-amd64-xl-qemuu-debianhvm-amd64-xsm                pass    
 test-amd64-i386-xl-qemuu-debianhvm-amd64-xsm                 pass    
 test-amd64-amd64-xl-qemut-stubdom-debianhvm-amd64-xsm        pass    
 test-amd64-i386-xl-qemut-stubdom-debianhvm-amd64-xsm         pass    
 test-amd64-amd64-libvirt-xsm                                 pass    
 test-arm64-arm64-libvirt-xsm                                 blocked 
 test-amd64-i386-libvirt-xsm                                  pass    
 test-amd64-amd64-xl-xsm                                      pass    
 test-arm64-arm64-xl-xsm                                      blocked 
 test-amd64-i386-xl-xsm                                       pass    
 test-amd64-amd64-qemuu-nested-amd                            fail    
 test-amd64-amd64-xl-pvhv2-amd                                pass    
 test-amd64-i386-qemut-rhel6hvm-amd                           pass    
 test-amd64-i386-qemuu-rhel6hvm-amd                           pass    
 test-amd64-amd64-xl-qemut-debianhvm-amd64                    pass    
 test-amd64-i386-xl-qemut-debianhvm-amd64                     pass    
 test-amd64-amd64-xl-qemuu-debianhvm-amd64                    pass    
 test-amd64-i386-xl-qemuu-debianhvm-amd64                     pass    
 test-amd64-i386-freebsd10-amd64                              pass    
 test-amd64-amd64-xl-qemuu-ovmf-amd64                         pass    
 test-amd64-i386-xl-qemuu-ovmf-amd64                          fail    
 test-amd64-amd64-rumprun-amd64                               pass    
 test-amd64-amd64-xl-qemut-win7-amd64                         fail    
 test-amd64-i386-xl-qemut-win7-amd64                          fail    
 test-amd64-amd64-xl-qemuu-win7-amd64                         fail    
 test-amd64-i386-xl-qemuu-win7-amd64                          fail    
 test-amd64-amd64-xl-qemut-ws16-amd64                         fail    
 test-amd64-i386-xl-qemut-ws16-amd64                          fail    
 test-amd64-amd64-xl-qemuu-ws16-amd64                         fail    
 test-amd64-i386-xl-qemuu-ws16-amd64                          fail    
 test-armhf-armhf-xl-arndale                                  blocked 
 test-amd64-amd64-xl-credit1                                  pass    
 test-arm64-arm64-xl-credit1                                  blocked 
 test-armhf-armhf-xl-credit1                                  blocked 
 test-amd64-amd64-xl-credit2                                  pass    
 test-arm64-arm64-xl-credit2                                  blocked 
 test-armhf-armhf-xl-credit2                                  blocked 
 test-armhf-armhf-xl-cubietruck                               blocked 
 test-amd64-amd64-xl-qemuu-dmrestrict-amd64-dmrestrict        fail    
 test-amd64-i386-xl-qemuu-dmrestrict-amd64-dmrestrict         fail    
 test-amd64-i386-freebsd10-i386                               pass    
 test-amd64-i386-rumprun-i386                                 pass    
 test-amd64-amd64-xl-qemut-win10-i386                         fail    
 test-amd64-i386-xl-qemut-win10-i386                          fail    
 test-amd64-amd64-xl-qemuu-win10-i386                         fail    
 test-amd64-i386-xl-qemuu-win10-i386                          fail    
 test-amd64-amd64-qemuu-nested-intel                          pass    
 test-amd64-amd64-xl-pvhv2-intel                              pass    
 test-amd64-i386-qemut-rhel6hvm-intel                         pass    
 test-amd64-i386-qemuu-rhel6hvm-intel                         pass    
 test-amd64-amd64-libvirt                                     pass    
 test-armhf-armhf-libvirt                                     blocked 
 test-amd64-i386-libvirt                                      pass    
 test-amd64-amd64-migrupgrade                                 pass    
 test-amd64-i386-migrupgrade                                  pass    
 test-amd64-amd64-xl-multivcpu                                pass    
 test-armhf-armhf-xl-multivcpu                                blocked 
 test-amd64-amd64-pair                                        pass    
 test-amd64-i386-pair                                         pass    
 test-amd64-amd64-libvirt-pair                                pass    
 test-amd64-i386-libvirt-pair                                 pass    
 test-amd64-amd64-amd64-pvgrub                                pass    
 test-amd64-amd64-i386-pvgrub                                 pass    
 test-amd64-amd64-pygrub                                      pass    
 test-amd64-amd64-xl-qcow2                                    pass    
 test-armhf-armhf-libvirt-raw                                 blocked 
 test-amd64-i386-xl-raw                                       pass    
 test-amd64-amd64-xl-rtds                                     pass    
 test-armhf-armhf-xl-rtds                                     blocked 
 test-amd64-amd64-xl-qemuu-debianhvm-amd64-shadow             pass    
 test-amd64-i386-xl-qemuu-debianhvm-amd64-shadow              pass    
 test-amd64-amd64-xl-shadow                                   pass    
 test-amd64-i386-xl-shadow                                    pass    
 test-amd64-amd64-libvirt-vhd                                 pass    
 test-armhf-armhf-xl-vhd                                      blocked 

sg-report-flight on osstest.test-lab.xenproject.org
logs: /home/logs/logs
images: /home/logs/images

Logs, config files, etc. are available at

Explanation of these reports, and of osstest in general, is at

Test harness code can be found at

Not pushing.

commit 788948bebcecca69bfac47e5514f2dc351dabad9
Author: Wei Liu <wei.liu2@xxxxxxxxxx>
Date:   Mon Aug 20 09:38:18 2018 +0100

    tools/tests: fix an xs-test.c issue
    The ret variable can be used uninitialised when iters is 0. Initialise
    ret at the beginning to fix this issue.
    Reported-by: Steven Haigh <netwiz@xxxxxxxxx>
    Signed-off-by: Wei Liu <wei.liu2@xxxxxxxxxx>
    Acked-by: Ian Jackson <ian.jackson@xxxxxxxxxxxxx>
    (cherry picked from commit 3a2b8525b883baa87fe89b3da58f5c09fa599b99)
    (cherry picked from commit 33664f9a05401fac8f2c0be0bb7ee8a1851e4dcf)

commit 61dc0159b69bd3eec109188386c8b13fbdfed7b2
Author: Daniel Kiper <daniel.kiper@xxxxxxxxxx>
Date:   Mon Oct 8 14:40:21 2018 +0200

    x86/boot: Allocate one extra module slot for Xen image placement
    Commit 9589927 (x86/mb2: avoid Xen image when looking for
    module/crashkernel position) fixed relocation issues for
    Multiboot2 protocol. Unfortunately it missed to allocate
    module slot for Xen image placement in early boot path.
    So, let's fix it right now.
    Reported-by: Wei Liu <wei.liu2@xxxxxxxxxx>
    Signed-off-by: Daniel Kiper <daniel.kiper@xxxxxxxxxx>
    Acked-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
    master commit: 4c5f9dbebc0bd2afee1ecd936c74ffe65756950f
    master date: 2018-09-27 11:17:47 +0100

commit d86c9aeae6cb753e931e00f7ee020d73df9070c0
Author: Dario Faggioli <dfaggioli@xxxxxxxx>
Date:   Mon Oct 8 14:39:46 2018 +0200

    xen: sched/Credit2: fix bug when moving CPUs between two Credit2 cpupools
    Whether or not a CPU is assigned to a runqueue (and, if yes, to which
    one) within a Credit2 scheduler instance must be both a per-cpu and
    per-scheduler instance one.
    In fact, when we move a CPU between cpupools, we first setup its per-cpu
    data in the new pool, and then cleanup its per-cpu data from the old
    pool. In Credit2, when there currently is no per-scheduler, per-cpu
    data (as the cpu-to-runqueue map is stored on a per-cpu basis only),
    this means that the cleanup of the old per-cpu data can mess with the
    new per-cpu data, leading to crashes like this:
    Basically, when csched2_deinit_pdata() is called for CPU 13, for fully
    removing the CPU from Pool-0, per_cpu(13,runq_map) already contain the
    id of the runqueue to which the CPU has been assigned in the scheduler
    of Pool-1, which means wrong runqueue manipulations happen in Pool-0's
    scheduler. Furthermore, at the end of such call, that same runq_map is
    updated with -1, which is what causes the BUG_ON in csched2_schedule(),
    on CPU 13, to trigger.
    So, instead of reverting a2c4e5ab59d "xen: credit2: make the cpu to
    runqueue map per-cpu" (as we don't want to go back to having the huge
    array in struct csched2_private) add a per-cpu scheduler specific data
    structure, like, for instance, Credit1 has already. That (for now) only
    contains one field: the id of the runqueue the CPU is assigned to.
    Signed-off-by: Dario Faggioli <dfaggioli@xxxxxxxx>
    Reviewed-by: Juergen Gross <jgross@xxxxxxxx>
    Reviewed-by: George Dunlap <george.dunlap@xxxxxxxxxx>
    master commit: 6e395f477fb854f11de83a951a070d3aacb6dc59
    master date: 2018-09-18 16:50:44 +0100

commit 45197905fc5c2151960dfe6f039a5a2e14f0b4aa
Author: Paul Durrant <paul.durrant@xxxxxxxxxx>
Date:   Mon Oct 8 14:39:10 2018 +0200

    x86/hvm/emulate: make sure rep I/O emulation does not cross GFN boundaries
    When emulating a rep I/O operation it is possible that the ioreq will
    describe a single operation that spans multiple GFNs. This is fine as long
    as all those GFNs fall within an MMIO region covered by a single device
    model, but unfortunately the higher levels of the emulation code do not
    guarantee that. This is something that should almost certainly be fixed,
    but in the meantime this patch makes sure that MMIO is truncated at GFN
    boundaries and hence the appropriate device model is re-evaluated for each
    target GFN.
    NOTE: This patch does not deal with the case of a single MMIO operation
          spanning a GFN boundary. That is more complex to deal with and is
          deferred to a subsequent patch.
    Signed-off-by: Paul Durrant <paul.durrant@xxxxxxxxxx>
    Convert calculations to be 32-bit only.
    Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
    master commit: 7626edeaca972e3e823535dcc44338f6b2f0b21f
    master date: 2018-08-16 09:27:30 +0200

commit 54838353189600af183ef09829276162f4b5e7f9
Author: Jan Beulich <jbeulich@xxxxxxxx>
Date:   Mon Oct 8 14:38:34 2018 +0200

    x86/cpuidle: don't init stats lock more than once
    Osstest flight 122363, having hit an NMI watchdog timeout, shows CPU1 at
    Xen call trace:
       [<ffff82d08023d3f4>] _spin_lock+0x30/0x57
       [<ffff82d0802d9346>] update_last_cx_stat+0x29/0x42
       [<ffff82d0802d96f3>] cpu_idle.c#acpi_processor_idle+0x2ff/0x596
       [<ffff82d080276713>] domain.c#idle_loop+0xa8/0xc3
    and CPU0 at
    Xen call trace:
       [<ffff82d08023d173>] on_selected_cpus+0xb7/0xde
       [<ffff82d0802dbe22>] powernow.c#powernow_cpufreq_target+0x110/0x1cb
       [<ffff82d080257973>] __cpufreq_driver_target+0x43/0xa6
       [<ffff82d080256b0d>] cpufreq_governor_dbs+0x324/0x37a
       [<ffff82d080257bf2>] __cpufreq_set_policy+0xfa/0x19d
       [<ffff82d080256044>] cpufreq_add_cpu+0x3a1/0x5df
       [<ffff82d0802dbab4>] cpufreq_cpu_init+0x17/0x1a
       [<ffff82d0802567a8>] set_px_pminfo+0x2b6/0x2f7
       [<ffff82d08029f1bf>] do_platform_op+0xe75/0x1977
       [<ffff82d0803712c5>] pv_hypercall+0x1f4/0x440
       [<ffff82d0803784a5>] lstar_enter+0x115/0x120
    That is, Dom0's ACPI processor driver is in the process of uploading Px
    and Cx data. Looking at the ticket lock state in CPU1's registers, it is
    waiting for ticket 0x0000 to have its turn, while the supposed current
    owner's ticket is 0x0001, which is an invalid state (and neither of the
    other two CPUs holds the lock anyway). Hence I can only conclude that
    cpuidle_init_cpu(1) ran on CPU 0 while some other CPU held the lock (the
    unlock then put the lock in the state that CPU1 is observing).
    Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
    Acked-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
    master commit: 2f64a251fa10dd4d62f84967e3dafa709f5e96ab
    master date: 2018-04-27 14:35:35 +0200

commit 518726dc1dd1a11668c841f4d6ea47beca18119a
Author: Roger Pau Monné <roger.pau@xxxxxxxxxx>
Date:   Mon Oct 8 14:37:25 2018 +0200

    x86/efi: split compiler vs linker support
    So that an ELF binary with support for EFI services will be built when
    the compiler supports the MS ABI, regardless of the linker support for
    Signed-off-by: Roger Pau Monné <roger.pau@xxxxxxxxxx>
    Reviewed-by: Jan Beulich <jbeulich@xxxxxxxx>
    Reviewed-by: Daniel Kiper <daniel.kiper@xxxxxxxxxx>
    Tested-by: Daniel Kiper <daniel.kiper@xxxxxxxxxx>
    master commit: 93249f7fc17c1f3a2aa8bf9ea055aa326e93a4ae
    master date: 2018-07-31 10:25:06 +0200

commit d091a49f89e979ca4ca7dc583c1f8ef7d1312a48
Author: Roger Pau Monné <roger.pau@xxxxxxxxxx>
Date:   Mon Oct 8 14:36:38 2018 +0200

    x86/efi: move the logic to detect PE build support
    So that it can be used by other components apart from the efi specific
    code. By moving the detection code creating a dummy efi/disabled file
    can be avoided.
    This is required so that the conditional used to define the efi symbol
    in the linker script can be removed and instead the definition of the
    efi symbol can be guarded using the preprocessor.
    The motivation behind this change is to be able to build Xen using lld
    (the LLVM linker), that at least on version 6.0.0 doesn't work
    properly with a DEFINED being used in a conditional expression:
    ld    -melf_x86_64_fbsd  -T xen.lds -N prelink.o --build-id=sha1 \
        /root/src/xen/xen/common/symbols-dummy.o -o 
    ld: error: xen.lds:233: symbol not found: efi
    Signed-off-by: Roger Pau Monné <roger.pau@xxxxxxxxxx>
    Reviewed-by: Jan Beulich <jbeulich@xxxxxxxx>
    Tested-by: Daniel Kiper <daniel.kiper@xxxxxxxxxx>
    master commit: 18cd4997d26b9df95dda87503e41c823279a07a0
    master date: 2018-07-31 10:24:22 +0200

commit 923af25a470ccb8fd4e4562d85012a79b5e632a7
Author: Ross Lagerwall <ross.lagerwall@xxxxxxxxxx>
Date:   Mon Oct 8 14:35:20 2018 +0200

    x86/shutdown: use ACPI reboot method for Dell PowerEdge R540
    When EFI booting the Dell PowerEdge R540 it consistently wanders into
    the weeds and gets an invalid opcode in the EFI ResetSystem call. This
    is the same bug which affects the PowerEdge R740 so fix it in the same
    way: quirk this hardware to use the ACPI reboot method instead.
    BIOS Information
        Vendor: Dell Inc.
        Version: 1.3.7
        Release Date: 02/09/2018
    System Information
        Manufacturer: Dell Inc.
        Product Name: PowerEdge R540
    Signed-off-by: Ross Lagerwall <ross.lagerwall@xxxxxxxxxx>
    Acked-by: Jan Beulich <jbeulich@xxxxxxxx>
    master commit: 328ca55b7bd47e1324b75cce2a6c461308ecf93d
    master date: 2018-06-28 09:29:13 +0200

commit 5ba0bb072aa7274be1fdd43f581b895dc78e60e1
Author: Ross Lagerwall <ross.lagerwall@xxxxxxxxxx>
Date:   Mon Oct 8 14:33:56 2018 +0200

    x86/shutdown: use ACPI reboot method for Dell PowerEdge R740
    When EFI booting the Dell PowerEdge R740, it consistently wanders into the
    weeds and gets an invalid opcode in the EFI ResetSystem call.
    Quirk this hardware to use the ACPI reboot method instead.
    Example stack trace:
    ----[ Xen-4.11-unstable  x86_64  debug=n   Not tainted ]----
    CPU:    0
    RIP:    e008:[<0000000000000017>] 0000000000000017
    RFLAGS: 0000000000010202   CONTEXT: hypervisor
    rax: 0000000066eb2ff0   rbx: ffff83005f627c20   rcx: 000000006c54e100
    rdx: 0000000000000000   rsi: 0000000000000065   rdi: 000000107355f000
    rbp: ffff83005f627c70   rsp: ffff83005f627b48   r8:  ffff83005f627b90
    r9:  0000000000000000   r10: ffff83005f627c88   r11: 0000000000000000
    r12: 0000000000000000   r13: 0000000000000cf9   r14: 0000000000000065
    r15: ffff830000000000   cr0: 0000000080050033   cr4: 00000000003526e0
    cr3: 000000107355f000   cr2: ffffc90000cff000
    fsb: 0000000000000000   gsb: ffff88019f600000   gss: 0000000000000000
    ds: 0000   es: 0000   fs: 0000   gs: 0000   ss: e010   cs: e008
    Xen code around <0000000000000017> (0000000000000017):
     f0 d8 dd 00 f0 54 ff 00 <f0> 50 dd 00 f0 d8 dd 00 f0 a5 fe 00 f0 87 e9 00
    Xen stack trace from rsp=ffff83005f627b48:
       ffff83005f627b50 ffffffffffffffda 000000006c547aaa ffff82d000000001
       ffff83005f627bec 000000107355f000 000000006c546fb8 ffff83107ffe3240
       0000000000000000 0000000000000000 8000000000000002 0000000000000000
       000000006c546b95 000000006c54c700 ffff83005f627bdc ffff83005f627be8
       000000005f616000 ffff83005f627c20 0000000000000000 0000000000000cf9
       ffff820080350001 000000000000000b ffff82d080351eda 0000000000000000
       0000000000000000 0000000000000000 0000000000000000 000000005f616000
       0000000000000000 ffff82d08095ff60 ffff82d08095ff60 000000f100000000
       ffff82d080296097 000000000000e008 0000000000000000 ffff83005f627c88
       0000000000000000 00000000fffffffe ffff82d0802959d2 ffff82d0802959d2
       000000008095f300 000000005f627c9c 00000000000000f8 0000000000000000
       00000000000000f8 ffff82d080932c00 0000000000000000 ffff82d08095f7c8
       ffff82d080932c00 0000000000000000 0000000000000000 ffff82d080295a9b
       ffff83005f627d98 ffff82d0802361f3 ffff82d080932c00 0000000080000000
       ffff83005f627d98 ffff82d080279a19 ffff82d08095f02c ffff82d080000000
       0000000000000000 00000000000000fb 0000000000000000 00000071484e54f6
       ffff831073542098 ffff82d08093ac78 ffff831072befd30 0000000000000000
       0000000000000000 0000000000000000 0000000000000000 0000000000000000
       0000000000000000 ffff82d08034f185 ffff82d080949460 0000000000000000
       ffff82d08095f270 0000000000000008 ffff83107357ae20 0000007146ce4bd3
    Xen call trace:
       [<0000000000000017>] 0000000000000017
       [<ffff82d080351eda>] efi_reset_system+0x5a/0x90
       [<ffff82d080296097>] smp_send_stop+0x97/0xa0
       [<ffff82d0802959d2>] machine_restart+0x212/0x2d0
       [<ffff82d0802959d2>] machine_restart+0x212/0x2d0
       [<ffff82d080295a9b>] shutdown.c#__machine_restart+0xb/0x10
       [<ffff82d0802361f3>] smp_call_function_interrupt+0x53/0x80
       [<ffff82d080279a19>] do_IRQ+0x259/0x660
       [<ffff82d08034f185>] common_interrupt+0x85/0x90
       [<ffff82d0802c6152>] mwait-idle.c#mwait_idle+0x242/0x390
       [<ffff82d08026b446>] domain.c#idle_loop+0x86/0xc0
    Panic on CPU 0:
    FATAL TRAP: vector = 6 (invalid opcode)
    dmidecode info:
    BIOS Information:
        Vendor: Dell Inc.
        Version: 1.2.11
        Release Date: 10/19/2017
        BIOS Revision: 1.2
    System Information:
        Manufacturer: Dell Inc.
        Product Name: PowerEdge R740
    Signed-off-by: Ross Lagerwall <ross.lagerwall@xxxxxxxxxx>
    Acked-by: Jan Beulich <jbeulich@xxxxxxxx>
    master commit: f97f774b5aa6b471d1fed1c451c89ec7457dadf2
    master date: 2018-01-24 18:01:00 +0100

commit 173c33800649ade708ad369cf34f3af338490f1c
Author: Jan Beulich <jbeulich@xxxxxxxx>
Date:   Mon Oct 8 14:32:16 2018 +0200

    update Xen version to 4.10.3-pre
(qemu changes not included)

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