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[xen-4.11-testing test] 156262: regressions - FAIL



flight 156262 xen-4.11-testing real [real]
flight 156275 xen-4.11-testing real-retest [real]
http://logs.test-lab.xenproject.org/osstest/logs/156262/
http://logs.test-lab.xenproject.org/osstest/logs/156275/

Regressions :-(

Tests which did not succeed and are blocking,
including tests which could not be run:
 test-amd64-amd64-xl-qemuu-debianhvm-amd64-shadow 18 guest-localmigrate/x10 
fail REGR. vs. 156034

Tests which did not succeed, but are not blocking:
 test-amd64-amd64-xl-qemuu-dmrestrict-amd64-dmrestrict 12 debian-hvm-install 
fail like 156034
 test-amd64-i386-xl-qemuu-dmrestrict-amd64-dmrestrict 12 debian-hvm-install 
fail like 156034
 test-armhf-armhf-libvirt     16 saverestore-support-check    fail  like 156034
 test-amd64-i386-xl-qemuu-win7-amd64 19 guest-stop             fail like 156034
 test-amd64-amd64-xl-qemuu-win7-amd64 19 guest-stop            fail like 156034
 test-amd64-amd64-xl-qemuu-ws16-amd64 19 guest-stop            fail like 156034
 test-amd64-i386-xl-qemuu-ws16-amd64 19 guest-stop             fail like 156034
 test-amd64-amd64-qemuu-nested-amd 20 debian-hvm-install/l1/l2 fail like 156034
 test-amd64-amd64-xl-qemut-win7-amd64 19 guest-stop            fail like 156034
 test-amd64-i386-xl-qemut-win7-amd64 19 guest-stop             fail like 156034
 test-armhf-armhf-libvirt-raw 15 saverestore-support-check    fail  like 156034
 test-amd64-amd64-xl-qemut-ws16-amd64 19 guest-stop            fail like 156034
 test-amd64-i386-xl-qemut-ws16-amd64 19 guest-stop             fail like 156034
 test-amd64-i386-libvirt-xsm  15 migrate-support-check        fail   never pass
 test-armhf-armhf-xl-multivcpu 15 migrate-support-check        fail  never pass
 test-armhf-armhf-xl-multivcpu 16 saverestore-support-check    fail  never pass
 test-amd64-amd64-libvirt-xsm 15 migrate-support-check        fail   never pass
 test-amd64-i386-xl-pvshim    14 guest-start                  fail   never pass
 test-arm64-arm64-xl          15 migrate-support-check        fail   never pass
 test-arm64-arm64-xl          16 saverestore-support-check    fail   never pass
 test-arm64-arm64-xl-seattle  15 migrate-support-check        fail   never pass
 test-arm64-arm64-xl-seattle  16 saverestore-support-check    fail   never pass
 test-arm64-arm64-libvirt-xsm 15 migrate-support-check        fail   never pass
 test-arm64-arm64-libvirt-xsm 16 saverestore-support-check    fail   never pass
 test-amd64-amd64-libvirt     15 migrate-support-check        fail   never pass
 test-amd64-i386-libvirt      15 migrate-support-check        fail   never pass
 test-amd64-i386-libvirt-qemuu-debianhvm-amd64-xsm 13 migrate-support-check 
fail never pass
 test-arm64-arm64-xl-credit2  15 migrate-support-check        fail   never pass
 test-arm64-arm64-xl-credit2  16 saverestore-support-check    fail   never pass
 test-arm64-arm64-xl-credit1  15 migrate-support-check        fail   never pass
 test-arm64-arm64-xl-credit1  16 saverestore-support-check    fail   never pass
 test-arm64-arm64-xl-thunderx 15 migrate-support-check        fail   never pass
 test-arm64-arm64-xl-thunderx 16 saverestore-support-check    fail   never pass
 test-arm64-arm64-xl-xsm      15 migrate-support-check        fail   never pass
 test-arm64-arm64-xl-xsm      16 saverestore-support-check    fail   never pass
 test-armhf-armhf-xl-arndale  15 migrate-support-check        fail   never pass
 test-armhf-armhf-xl-arndale  16 saverestore-support-check    fail   never pass
 test-armhf-armhf-xl-credit1  15 migrate-support-check        fail   never pass
 test-armhf-armhf-xl-credit1  16 saverestore-support-check    fail   never pass
 test-armhf-armhf-libvirt     15 migrate-support-check        fail   never pass
 test-amd64-amd64-libvirt-qemuu-debianhvm-amd64-xsm 13 migrate-support-check 
fail never pass
 test-armhf-armhf-xl-rtds     15 migrate-support-check        fail   never pass
 test-armhf-armhf-xl-rtds     16 saverestore-support-check    fail   never pass
 test-armhf-armhf-xl-credit2  15 migrate-support-check        fail   never pass
 test-armhf-armhf-xl-credit2  16 saverestore-support-check    fail   never pass
 test-amd64-amd64-libvirt-vhd 14 migrate-support-check        fail   never pass
 test-armhf-armhf-xl          15 migrate-support-check        fail   never pass
 test-armhf-armhf-xl          16 saverestore-support-check    fail   never pass
 test-armhf-armhf-xl-cubietruck 15 migrate-support-check        fail never pass
 test-armhf-armhf-xl-cubietruck 16 saverestore-support-check    fail never pass
 test-armhf-armhf-xl-vhd      14 migrate-support-check        fail   never pass
 test-armhf-armhf-xl-vhd      15 saverestore-support-check    fail   never pass
 test-armhf-armhf-libvirt-raw 14 migrate-support-check        fail   never pass

version targeted for testing:
 xen                  e274c8bdc12eb596e55233040e8b49da27150f31
baseline version:
 xen                  63199dfd3a0418f1677c6ccd7fe05b123af4610a

Last test of basis   156034  2020-10-20 13:35:54 Z    7 days
Testing same since   156262  2020-10-27 18:36:52 Z    0 days    1 attempts

------------------------------------------------------------
People who touched revisions under test:
  Andrew Cooper <andrew.cooper3@xxxxxxxxxx>

jobs:
 build-amd64-xsm                                              pass    
 build-arm64-xsm                                              pass    
 build-i386-xsm                                               pass    
 build-amd64-xtf                                              pass    
 build-amd64                                                  pass    
 build-arm64                                                  pass    
 build-armhf                                                  pass    
 build-i386                                                   pass    
 build-amd64-libvirt                                          pass    
 build-arm64-libvirt                                          pass    
 build-armhf-libvirt                                          pass    
 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    
 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                                          pass    
 test-armhf-armhf-xl                                          pass    
 test-amd64-i386-xl                                           pass    
 test-amd64-amd64-libvirt-qemuu-debianhvm-amd64-xsm           pass    
 test-amd64-i386-libvirt-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-xl-qemut-debianhvm-i386-xsm                 pass    
 test-amd64-i386-xl-qemut-debianhvm-i386-xsm                  pass    
 test-amd64-amd64-xl-qemuu-debianhvm-i386-xsm                 pass    
 test-amd64-i386-xl-qemuu-debianhvm-i386-xsm                  pass    
 test-amd64-amd64-libvirt-xsm                                 pass    
 test-arm64-arm64-libvirt-xsm                                 pass    
 test-amd64-i386-libvirt-xsm                                  pass    
 test-amd64-amd64-xl-xsm                                      pass    
 test-arm64-arm64-xl-xsm                                      pass    
 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-qemuu-freebsd11-amd64                       pass    
 test-amd64-amd64-qemuu-freebsd12-amd64                       pass    
 test-amd64-amd64-xl-qemuu-ovmf-amd64                         pass    
 test-amd64-i386-xl-qemuu-ovmf-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-credit1                                  pass    
 test-arm64-arm64-xl-credit1                                  pass    
 test-armhf-armhf-xl-credit1                                  pass    
 test-amd64-amd64-xl-credit2                                  pass    
 test-arm64-arm64-xl-credit2                                  pass    
 test-armhf-armhf-xl-credit2                                  pass    
 test-armhf-armhf-xl-cubietruck                               pass    
 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-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                                     pass    
 test-amd64-i386-libvirt                                      pass    
 test-amd64-amd64-livepatch                                   pass    
 test-amd64-i386-livepatch                                    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                                pass    
 test-amd64-i386-libvirt-pair                                 pass    
 test-amd64-amd64-amd64-pvgrub                                pass    
 test-amd64-amd64-i386-pvgrub                                 pass    
 test-amd64-amd64-xl-pvshim                                   pass    
 test-amd64-i386-xl-pvshim                                    fail    
 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                                     pass    
 test-arm64-arm64-xl-seattle                                  pass    
 test-amd64-amd64-xl-qemuu-debianhvm-amd64-shadow             fail    
 test-amd64-i386-xl-qemuu-debianhvm-amd64-shadow              pass    
 test-amd64-amd64-xl-shadow                                   pass    
 test-amd64-i386-xl-shadow                                    pass    
 test-arm64-arm64-xl-thunderx                                 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 e274c8bdc12eb596e55233040e8b49da27150f31
Author: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
Date:   Mon Oct 19 15:51:22 2020 +0100

    x86/pv: Flush TLB in response to paging structure changes
    
    With MMU_UPDATE, a PV guest can make changes to higher level pagetables.  
This
    is safe from Xen's point of view (as the update only affects guest 
mappings),
    and the guest is required to flush (if necessary) after making updates.
    
    However, Xen's use of linear pagetables (UPDATE_VA_MAPPING, GNTTABOP_map,
    writeable pagetables, etc.) is an implementation detail outside of the
    API/ABI.
    
    Changes in the paging structure require invalidations in the linear 
pagetable
    range for subsequent accesses into the linear pagetables to access non-stale
    mappings.  Xen must provide suitable flushing to prevent intermixed guest
    actions from accidentally accessing/modifying the wrong pagetable.
    
    For all L2 and higher modifications, flush the TLB.  PV guests cannot create
    L2 or higher entries with the Global bit set, so no mappings established in
    the linear range can be global.  (This could in principle be an order 39 
flush
    starting at LINEAR_PT_VIRT_START, but no such mechanism exists in practice.)
    
    Express the necessary flushes as a set of booleans which accumulate across 
the
    operation.  Comment the flushing logic extensively.
    
    This is XSA-286.
    
    Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
    Reviewed-by: Jan Beulich <jbeulich@xxxxxxxx>
    (cherry picked from commit 16a20963b3209788f2c0d3a3eebb7d92f03f5883)

commit 1d021db3c8712d25e25f078833baa160c90f260f
Author: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
Date:   Thu Oct 22 11:28:58 2020 +0100

    x86/pv: Drop FLUSH_TLB_GLOBAL in do_mmu_update() for XPTI
    
    c/s 9d1d31ad9498 "x86: slightly reduce Meltdown band-aid overhead" removed 
the
    use of Global TLB flushes on the Xen entry path, but added a 
FLUSH_TLB_GLOBAL
    to the L4 path in do_mmu_update().
    
    However, this was unnecessary.
    
    It is the guests responsibility to perform appropriate TLB flushing if the 
L4
    modification altered an established mapping in a flush-relevant way.  In 
this
    case, an MMUEXT_OP hypercall will follow.  The case which Xen needs to cover
    is when new mappings are created, and the resync on the exit-to-guest path
    covers this correctly.
    
    There is a corner case with multiple vCPUs in hypercalls at the same time,
    which 9d1d31ad9498 changed, and this patch changes back to its original XPTI
    behaviour.
    
    Architecturally, established TLB entries can continue to be used until the
    broadcast flush has completed.  Therefore, even with concurrent hypercalls,
    the guest cannot depend on older mappings not being used until an MMUEXT_OP
    hypercall completes.  Xen's implementation of guest-initiated flushes will
    take correct effect on top of an in-progress hypercall, picking up new 
mapping
    setting before the other vCPU's MMUEXT_OP completes.
    
    Note: The correctness of this change is not impacted by whether XPTI uses
    global mappings or not.  Correctness there depends on the behaviour of Xen 
on
    the entry/exit paths when switching two/from the XPTI "shadow" pagetables.
    
    This is (not really) XSA-286 (but necessary to simplify the logic).
    
    Fixes: 9d1d31ad9498 ("x86: slightly reduce Meltdown band-aid overhead")
    Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
    Reviewed-by: Jan Beulich <jbeulich@xxxxxxxx>
    (cherry picked from commit 055e1c3a3d95b1e753148369fbc4ba48782dd602)
(qemu changes not included)



 


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