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[xen-4.6-testing test] 124785: regressions - FAIL



flight 124785 xen-4.6-testing real [real]
http://logs.test-lab.xenproject.org/osstest/logs/124785/

Regressions :-(

Tests which did not succeed and are blocking,
including tests which could not be run:
 test-amd64-amd64-xl-qemuu-debianhvm-amd64 13 guest-saverestore fail REGR. vs. 
124551

Tests which did not succeed, but are not blocking:
 test-xtf-amd64-amd64-3      50 xtf/test-hvm64-lbr-tsx-vmentry fail like 124292
 test-xtf-amd64-amd64-5      50 xtf/test-hvm64-lbr-tsx-vmentry fail like 124469
 test-amd64-i386-libvirt-pair 22 guest-migrate/src_host/dst_host fail like 
124551
 test-amd64-amd64-libvirt-pair 22 guest-migrate/src_host/dst_host fail like 
124551
 test-amd64-i386-xl-qemuu-win7-amd64 17 guest-stop             fail like 124551
 test-armhf-armhf-libvirt-xsm 14 saverestore-support-check    fail  like 124551
 test-amd64-amd64-xl-qemut-win7-amd64 17 guest-stop            fail like 124551
 test-amd64-amd64-xl-qemuu-win7-amd64 17 guest-stop            fail like 124551
 test-armhf-armhf-libvirt-raw 13 saverestore-support-check    fail  like 124551
 test-amd64-i386-xl-qemut-win7-amd64 17 guest-stop             fail like 124551
 test-armhf-armhf-libvirt     14 saverestore-support-check    fail  like 124551
 test-armhf-armhf-xl-rtds     16 guest-start/debian.repeat    fail  like 124551
 test-amd64-i386-xl-qemut-ws16-amd64 17 guest-stop             fail like 124551
 test-xtf-amd64-amd64-2       37 xtf/test-hvm32pae-memop-seg  fail   never pass
 test-xtf-amd64-amd64-2       52 xtf/test-hvm64-memop-seg     fail   never pass
 test-xtf-amd64-amd64-2       77 xtf/test-pv32pae-xsa-194     fail   never pass
 test-xtf-amd64-amd64-4       37 xtf/test-hvm32pae-memop-seg  fail   never pass
 test-xtf-amd64-amd64-1       37 xtf/test-hvm32pae-memop-seg  fail   never pass
 test-xtf-amd64-amd64-4       52 xtf/test-hvm64-memop-seg     fail   never pass
 test-xtf-amd64-amd64-1       52 xtf/test-hvm64-memop-seg     fail   never pass
 test-xtf-amd64-amd64-4       77 xtf/test-pv32pae-xsa-194     fail   never pass
 test-xtf-amd64-amd64-1       77 xtf/test-pv32pae-xsa-194     fail   never pass
 test-xtf-amd64-amd64-3       37 xtf/test-hvm32pae-memop-seg  fail   never pass
 test-xtf-amd64-amd64-5       37 xtf/test-hvm32pae-memop-seg  fail   never pass
 test-xtf-amd64-amd64-3       52 xtf/test-hvm64-memop-seg     fail   never pass
 test-amd64-i386-libvirt-xsm  13 migrate-support-check        fail   never pass
 test-xtf-amd64-amd64-5       52 xtf/test-hvm64-memop-seg     fail   never pass
 test-xtf-amd64-amd64-3       77 xtf/test-pv32pae-xsa-194     fail   never pass
 test-xtf-amd64-amd64-5       77 xtf/test-pv32pae-xsa-194     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-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-qemuu-nested-amd 17 debian-hvm-install/l1/l2  fail never pass
 test-amd64-amd64-libvirt-vhd 12 migrate-support-check        fail   never pass
 test-armhf-armhf-xl-xsm      13 migrate-support-check        fail   never pass
 test-armhf-armhf-xl-xsm      14 saverestore-support-check    fail   never pass
 test-armhf-armhf-xl          13 migrate-support-check        fail   never pass
 test-armhf-armhf-xl          14 saverestore-support-check    fail   never pass
 test-armhf-armhf-xl-multivcpu 13 migrate-support-check        fail  never pass
 test-armhf-armhf-xl-multivcpu 14 saverestore-support-check    fail  never pass
 test-armhf-armhf-libvirt-xsm 13 migrate-support-check        fail   never pass
 test-armhf-armhf-xl-cubietruck 13 migrate-support-check        fail never pass
 test-armhf-armhf-xl-cubietruck 14 saverestore-support-check    fail never pass
 test-armhf-armhf-libvirt-raw 12 migrate-support-check        fail   never pass
 test-armhf-armhf-libvirt     13 migrate-support-check        fail   never pass
 test-armhf-armhf-xl-arndale  13 migrate-support-check        fail   never pass
 test-armhf-armhf-xl-arndale  14 saverestore-support-check    fail   never pass
 test-armhf-armhf-xl-credit2  13 migrate-support-check        fail   never pass
 test-armhf-armhf-xl-credit2  14 saverestore-support-check    fail   never pass
 test-amd64-amd64-xl-qemuu-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-ws16-amd64 17 guest-stop             fail never pass
 test-armhf-armhf-xl-rtds     13 migrate-support-check        fail   never pass
 test-armhf-armhf-xl-rtds     14 saverestore-support-check    fail   never pass
 test-armhf-armhf-xl-vhd      12 migrate-support-check        fail   never pass
 test-armhf-armhf-xl-vhd      13 saverestore-support-check    fail   never pass
 test-amd64-i386-xl-qemut-win10-i386 10 windows-install         fail never pass
 test-amd64-amd64-xl-qemut-win10-i386 10 windows-install        fail never pass
 test-amd64-i386-xl-qemuu-win10-i386 10 windows-install         fail never pass
 test-amd64-amd64-xl-qemuu-win10-i386 10 windows-install        fail never pass

version targeted for testing:
 xen                  598a375f5230d91ac88e76a9f4b4dde4a62a4c5b
baseline version:
 xen                  542f711567a3f1891cb75187eeaf5cce3f7d6893

Last test of basis   124551  2018-06-21 20:59:18 Z    7 days
Testing same since   124785  2018-06-28 10:36:07 Z    0 days    1 attempts

------------------------------------------------------------
People who touched revisions under test:
  Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
  Jan Beulich <jbeulich@xxxxxxxx>
  Juergen Gross <jgross@xxxxxxxx>

jobs:
 build-amd64-xsm                                              pass    
 build-armhf-xsm                                              pass    
 build-i386-xsm                                               pass    
 build-amd64-xtf                                              pass    
 build-amd64                                                  pass    
 build-armhf                                                  pass    
 build-i386                                                   pass    
 build-amd64-libvirt                                          pass    
 build-armhf-libvirt                                          pass    
 build-i386-libvirt                                           pass    
 build-amd64-prev                                             pass    
 build-i386-prev                                              pass    
 build-amd64-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-armhf-armhf-xl                                          pass    
 test-amd64-i386-xl                                           pass    
 test-amd64-amd64-xl-qemut-debianhvm-amd64-xsm                pass    
 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-armhf-armhf-libvirt-xsm                                 pass    
 test-amd64-i386-libvirt-xsm                                  pass    
 test-amd64-amd64-xl-xsm                                      pass    
 test-armhf-armhf-xl-xsm                                      pass    
 test-amd64-i386-xl-xsm                                       pass    
 test-amd64-amd64-qemuu-nested-amd                            fail    
 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                    fail    
 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                          pass    
 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                                  pass    
 test-amd64-amd64-xl-credit2                                  pass    
 test-armhf-armhf-xl-credit2                                  pass    
 test-armhf-armhf-xl-cubietruck                               pass    
 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-i386-qemut-rhel6hvm-intel                         pass    
 test-amd64-i386-qemuu-rhel6hvm-intel                         pass    
 test-amd64-amd64-libvirt                                     pass    
 test-armhf-armhf-libvirt                                     pass    
 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                                pass    
 test-amd64-amd64-pair                                        pass    
 test-amd64-i386-pair                                         pass    
 test-amd64-amd64-libvirt-pair                                fail    
 test-amd64-i386-libvirt-pair                                 fail    
 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                                 pass    
 test-amd64-i386-xl-raw                                       pass    
 test-amd64-amd64-xl-rtds                                     pass    
 test-armhf-armhf-xl-rtds                                     fail    
 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                                      pass    


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

Logs, config files, etc. are available at
    http://logs.test-lab.xenproject.org/osstest/logs

Explanation of these reports, and of osstest in general, is at
    http://xenbits.xen.org/gitweb/?p=osstest.git;a=blob;f=README.email;hb=master
    http://xenbits.xen.org/gitweb/?p=osstest.git;a=blob;f=README;hb=master

Test harness code can be found at
    http://xenbits.xen.org/gitweb?p=osstest.git;a=summary


Not pushing.

------------------------------------------------------------
commit 598a375f5230d91ac88e76a9f4b4dde4a62a4c5b
Author: Jan Beulich <jbeulich@xxxxxxxx>
Date:   Thu Jun 28 12:28:21 2018 +0200

    x86/HVM: don't cause #NM to be raised in Xen
    
    The changes for XSA-267 did not touch management of CR0.TS for HVM
    guests. In fully eager mode this bit should never be set when
    respective vCPU-s are active, or else hvmemul_get_fpu() might leave it
    wrongly set, leading to #NM in hypervisor context.
    
    {svm,vmx}_enter() and {svm,vmx}_fpu_dirty_intercept() become unreachable
    this way. Explicit {svm,vmx}_fpu_leave() invocations need to be guarded
    now.
    
    With no CR0.TS management necessary in fully eager mode, there's also no
    need anymore to intercept #NM.
    
    Reported-by: Charles Arnold <carnold@xxxxxxxx>
    Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
    Reviewed-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>

commit b7b7c4df2d251b1feba217939ea0b618094a48c2
Author: Jan Beulich <jbeulich@xxxxxxxx>
Date:   Thu Jun 28 12:27:56 2018 +0200

    x86/EFI: further correct FPU state handling around runtime calls
    
    We must not leave a vCPU with CR0.TS clear when it is not in fully eager
    mode and has not touched non-lazy state. Instead of adding a 3rd
    invocation of stts() to vcpu_restore_fpu_eager(), consolidate all of
    them into a single one done at the end of the function.
    
    Rename the function at the same time to better reflect its purpose, as
    the patches touches all of its occurences anyway.
    
    The new function parameter is not really well named, but
    "need_stts_if_not_fully_eager" seemed excessive to me.
    
    Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
    Reviewed-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
    Reviewed-by: Paul Durrant <paul.durrant@xxxxxxxxxx>

commit ba7d0117ab535280e2b6821aa6d323053ac6b266
Author: Jan Beulich <jbeulich@xxxxxxxx>
Date:   Thu Jun 28 12:27:34 2018 +0200

    x86/EFI: fix FPU state handling around runtime calls
    
    There are two issues.  First, the nonlazy xstates were never restored
    after returning from the runtime call.
    
    Secondly, with the fully_eager_fpu mitigation for XSA-267 / LazyFPU, the
    unilateral stts() is no longer correct, and hits an assertion later when
    a lazy state restore tries to occur for a fully eager vcpu.
    
    Fix both of these issues by calling vcpu_restore_fpu_eager().  As EFI
    runtime services can be used in the idle context, the idle assertion
    needs to move until after the fully_eager_fpu check.
    
    Introduce a "curr" local variable and replace other uses of "current"
    at the same time.
    
    Reported-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
    Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
    Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
    Tested-by: Juergen Gross <jgross@xxxxxxxx>

commit a54480404a72e2b6c28b41a654d9bd7551e77fe6
Author: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
Date:   Thu Jun 28 12:26:54 2018 +0200

    x86: Refine checks in #DB handler for faulting conditions
    
    One of the fix for XSA-260 (c/s 75d6828bc2 "x86/traps: Fix handling of #DB
    exceptions in hypervisor context") added some safety checks to help avoid
    livelocks of #DB faults.
    
    While a General Detect #DB exception does have fault semantics, hardware
    clears %dr7.gd on entry to the handler, meaning that it is actually safe to
    return to.  Furthermore, %dr6.gd is guest controlled and sticky (never 
cleared
    by hardware).  A malicious PV guest can therefore trigger the fatal_trap() 
and
    crash Xen.
    
    Instruction breakpoints are more tricky.  The breakpoint match bits in %dr6
    are not sticky, but the Intel manual warns that they may be set for
    non-enabled breakpoints, so add a breakpoint enabled check.
    
    Beyond that, because of the restriction on the linear addresses PV guests 
can
    set, and the fault (rather than trap) nature of instruction breakpoints
    (i.e. can't be deferred by a MovSS shadow), there should be no way to
    encounter an instruction breakpoint in Xen context.  However, for extra
    robustness, deal with this situation by clearing the breakpoint 
configuration,
    rather than crashing.
    
    This is XSA-265
    
    Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
    Reviewed-by: Jan Beulich <jbeulich@xxxxxxxx>

commit 2642b56ea54917c43ac03cb95b53f7dadf5c2ad6
Author: Jan Beulich <jbeulich@xxxxxxxx>
Date:   Thu Jun 28 12:26:25 2018 +0200

    x86/mm: don't bypass preemption checks
    
    While unlikely, it is not impossible for a multi-vCPU guest to leverage
    bypasses of preemption checks to drive Xen into an unbounded loop.
    
    This is XSA-264.
    
    Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
    Reviewed-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>

commit 03938ba0131520df0b05d9d4e5d8bb1cff526f73
Author: Jan Beulich <jbeulich@xxxxxxxx>
Date:   Thu Jun 28 12:25:43 2018 +0200

    x86: correct default_xen_spec_ctrl calculation
    
    Even with opt_msr_sc_{pv,hvm} both false we should set up the variable
    as usual, to ensure proper one-time setup during boot and CPU bringup.
    This then also brings the code in line with the comment immediately
    ahead of the printk() being modified saying "irrespective of guests".
    
    Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
    Reviewed-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
    master commit: d6239f64713df819278bf048446d3187c6ac4734
    master date: 2018-05-29 12:38:52 +0200
(qemu changes not included)

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