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[Xen-devel] [libvirt test] 122494: regressions - FAIL



flight 122494 libvirt real [real]
http://logs.test-lab.xenproject.org/osstest/logs/122494/

Regressions :-(

Tests which did not succeed and are blocking,
including tests which could not be run:
 test-armhf-armhf-libvirt-raw 16 guest-start.2            fail REGR. vs. 122455

Tests which did not succeed, but are not blocking:
 test-armhf-armhf-libvirt     14 saverestore-support-check    fail  like 122455
 test-armhf-armhf-libvirt-xsm 14 saverestore-support-check    fail  like 122455
 test-armhf-armhf-libvirt-raw 13 saverestore-support-check    fail  like 122455
 test-amd64-amd64-libvirt     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-xsm 13 migrate-support-check        fail   never pass
 test-arm64-arm64-libvirt-xsm 13 migrate-support-check        fail   never pass
 test-arm64-arm64-libvirt-xsm 14 saverestore-support-check    fail   never pass
 test-amd64-i386-libvirt-qemuu-debianhvm-amd64-xsm 11 migrate-support-check 
fail never pass
 test-amd64-amd64-libvirt-qemuu-debianhvm-amd64-xsm 11 migrate-support-check 
fail never pass
 test-arm64-arm64-libvirt-qcow2 12 migrate-support-check        fail never pass
 test-arm64-arm64-libvirt-qcow2 13 saverestore-support-check    fail never pass
 test-amd64-amd64-libvirt-vhd 12 migrate-support-check        fail   never pass
 test-armhf-armhf-libvirt     13 migrate-support-check        fail   never pass
 test-armhf-armhf-libvirt-xsm 13 migrate-support-check        fail   never pass
 test-armhf-armhf-libvirt-raw 12 migrate-support-check        fail   never pass
 test-arm64-arm64-libvirt     13 migrate-support-check        fail   never pass
 test-arm64-arm64-libvirt     14 saverestore-support-check    fail   never pass

version targeted for testing:
 libvirt              ce5aebeacd10a1c15cb3ee46a59c8b5ff235589e
baseline version:
 libvirt              f94e5b215720c91c60219f1694783a603f0b619c

Last test of basis   122455  2018-04-26 18:27:32 Z    3 days
Testing same since   122494  2018-04-28 10:26:55 Z    1 days    1 attempts

------------------------------------------------------------
People who touched revisions under test:
  Christian Ehrhardt <christian.ehrhardt@xxxxxxxxxxxxx>
  Daniel P. Berrangé <berrange@xxxxxxxxxx>
  Laine Stump <laine@xxxxxxxxx>
  Peter Krempa <pkrempa@xxxxxxxxxx>

jobs:
 build-amd64-xsm                                              pass    
 build-arm64-xsm                                              pass    
 build-armhf-xsm                                              pass    
 build-i386-xsm                                               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-pvops                                            pass    
 build-arm64-pvops                                            pass    
 build-armhf-pvops                                            pass    
 build-i386-pvops                                             pass    
 test-amd64-amd64-libvirt-qemuu-debianhvm-amd64-xsm           pass    
 test-amd64-i386-libvirt-qemuu-debianhvm-amd64-xsm            pass    
 test-amd64-amd64-libvirt-xsm                                 pass    
 test-arm64-arm64-libvirt-xsm                                 pass    
 test-armhf-armhf-libvirt-xsm                                 pass    
 test-amd64-i386-libvirt-xsm                                  pass    
 test-amd64-amd64-libvirt                                     pass    
 test-arm64-arm64-libvirt                                     pass    
 test-armhf-armhf-libvirt                                     pass    
 test-amd64-i386-libvirt                                      pass    
 test-amd64-amd64-libvirt-pair                                pass    
 test-amd64-i386-libvirt-pair                                 pass    
 test-arm64-arm64-libvirt-qcow2                               pass    
 test-armhf-armhf-libvirt-raw                                 fail    
 test-amd64-amd64-libvirt-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 ce5aebeacd10a1c15cb3ee46a59c8b5ff235589e
Author: Laine Stump <laine@xxxxxxxxx>
Date:   Wed Apr 25 17:12:03 2018 -0400

    nwfilter: increase pcap buffer size to be compatible with TPACKET_V3
    
    When an nwfilter rule sets the parameter CTRL_IP_LEARNING to "dhcp",
    this turns on the "dhcpsnoop" thread, which uses libpcap to monitor
    traffic on the domain's tap device and extract the IP address from the
    DHCP response.
    
    If libpcap on the host is built with HAVE_TPACKET3 defined (to enable
    support for TPACKET_V3), the dhcpsnoop code's initialization of the
    libpcap socket would fail with the following error:
    
      virNWFilterSnoopDHCPOpen:1134 : internal error: pcap_setfilter: can't 
remove kernel filter: Bad file descriptor
    
    It turns out that this was because TPACKET_V3 requires a larger buffer
    size than libvirt was setting (we were setting it to 128k). Changing
    the buffer size to 256k eliminates the error, and the dhcpsnoop thread
    once again works properly.
    
    A fuller explanation of why TPACKET_V3 requires such a large buffer,
    for future git spelunkers:
    
    libpcap calls setsockopt(... SOL_PACKET, PACKET_RX_RING...) to setup a
    ring buffer for receiving packets; two of the attributes sent to this
    API are called tp_frame_size, and tp_frame_nr. If libpcap was built
    with HAVE_TPACKET3 defined, tp_trame_size is set to MAXIMUM_SNAPLEN
    (defined in libpcap sources as 262144) and tp_frame_nr is set to:
    
     [the buffer size we set, i.e. PCAP_BUFFERSIZE i.e. 262144] / tp_frame_size.
    
    So if PCAP_BUFFERSIZE < MAXIMUM_SNAPLEN, then tp_frame_nr (the number
    of frames in the ring buffer) is 0, which is nonsensical. This same
    value is later used as a multiplier to determine the size for a call
    to malloc() (which would also fail).
    
    (NB: if HAVE_TPACKET3 is *not* defined, then tp_frame_size is set to
    the snaplen set by the user (in our case 576) plus a small amount to
    account for ethernet headers, so 256k is far more than adequate)
    
    Since the TPACKET_V3 code in libpcap actually reads multiple packets
    into each frame, it's not a problem to have only a single frame
    (especially when we are monitoring such infrequent traffic), so it's
    okay to set this relatively small buffer size (in comparison to the
    default, which is 2MB), which is important since every guest using
    dhcp snooping in a nwfilter rule will hold 2 of these buffers for the
    entire life of the guest.
    
    Thanks to Christian Ehrhardt for discovering that buffer size was the
    problem (this was not at all obvious from the error that was logged!)
    
    Resolves: https://bugzilla.redhat.com/1547237
    Fixes: https://bugs.launchpad.net/libvirt/+bug/1758037
    
    Signed-off-by: Laine Stump <laine@xxxxxxxxx>
    Reviewed-by: Christian Ehrhardt <christian.ehrhardt@xxxxxxxxxxxxx> (V1)
    Reviewed-by: John Ferlan <jferlan@xxxxxxxxxx>
    Tested-by: Christian Ehrhardt <christian.ehrhardt@xxxxxxxxxxxxx>

commit 6dd3679603f6ce1bae1e1b365731aacf427911a0
Author: Daniel P. Berrangé <berrange@xxxxxxxxxx>
Date:   Fri Apr 27 16:27:26 2018 +0100

    Revert "news: Update the news file with the log filter wildcard improvement"
    
    This reverts commit 209d4d6f42a01829c68ef54b042a0c53ef0b22d3.
    
    The wildcard feature has been temporarily removed pending re-impl.
    
    Signed-off-by: Daniel P. Berrangé <berrange@xxxxxxxxxx>

commit d32c0f9afe437afc93062722c927b259acf36e0f
Author: Daniel P. Berrangé <berrange@xxxxxxxxxx>
Date:   Fri Apr 20 12:57:33 2018 +0100

    Revert "util: virlog: Introduce wildcard to log filters"
    
    This reverts commit 8daa593b0741452a78daea76075254ae7d3c6ab6.
    
    There are two undesirable aspects to the impl
    
      - Only a bare wildcard is permitted
      - The wildcard match is not performed in the order listed
    
    Reviewed-by: John Ferlan <jferlan@xxxxxxxxxx>
    Signed-off-by: Daniel P. Berrangé <berrange@xxxxxxxxxx>

commit 96fc9fc5096b9d699c46bfd0baecab68c2138066
Author: Peter Krempa <pkrempa@xxxxxxxxxx>
Date:   Fri Apr 27 13:17:17 2018 +0200

    qemu: migration: Set the 'set' boolean in qemuMigrationParamsSetString
    
    The code setting TLS parameters verifies that TLS is supported by
    looking at the dump of parameters which will be reset after migration,
    but sets the parameters in the list of new parameters. As
    qemuMigrationParamsSetString did not set the 'set' property, the TLS
    parameters would not be used.
    
    This is a regression after the series refactoring migration parameters
    and it resulted into TLS not being used even when requested.
    
    Signed-off-by: Peter Krempa <pkrempa@xxxxxxxxxx>

commit d49c6e462367ab5747b394246f1a8a6fc38d5ced
Author: Peter Krempa <pkrempa@xxxxxxxxxx>
Date:   Fri Apr 27 12:59:00 2018 +0200

    qemu: migration: Move and unexport qemuMigrationParamsSetString
    
    The function is not used outside of the src/qemu/qemu_migration_params.c
    file so unexport it.
    
    Signed-off-by: Peter Krempa <pkrempa@xxxxxxxxxx>

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