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[Xen-devel] [xen-4.4-testing test] 25333: regressions - FAIL



flight 25333 xen-4.4-testing real [real]
http://www.chiark.greenend.org.uk/~xensrcts/logs/25333/

Regressions :-(

Tests which did not succeed and are blocking,
including tests which could not be run:
 build-i386-xend               4 xen-build        fail in 25330 REGR. vs. 25266

Tests which are failing intermittently (not blocking):
 test-amd64-amd64-xl          14 guest-localmigrate.2        fail pass in 25330

Regressions which are regarded as allowable (not blocking):
 build-amd64-oldkern           4 xen-build                 fail REGR. vs. 25266
 build-i386-oldkern            4 xen-build                 fail REGR. vs. 25266

Tests which did not succeed, but are not blocking:
 test-amd64-amd64-xl-pcipt-intel  9 guest-start                 fail never pass
 test-armhf-armhf-xl          10 migrate-support-check        fail   never pass
 test-amd64-i386-xl-winxpsp3-vcpus1 14 guest-stop               fail never pass
 test-amd64-amd64-xl-winxpsp3 14 guest-stop                   fail   never pass
 test-amd64-amd64-xl-win7-amd64 14 guest-stop                   fail never pass
 test-amd64-i386-xl-win7-amd64 14 guest-stop                   fail  never pass
 test-amd64-i386-xl-qemuu-winxpsp3-vcpus1 14 guest-stop         fail never pass
 test-amd64-i386-xl-qemuu-win7-amd64 14 guest-stop              fail never pass
 test-amd64-i386-xend-qemut-winxpsp3 17 leak-check/check        fail never pass
 test-amd64-amd64-xl-qemut-win7-amd64 14 guest-stop             fail never pass
 test-amd64-i386-xl-qemut-winxpsp3-vcpus1 14 guest-stop         fail never pass
 test-amd64-i386-xend-winxpsp3 17 leak-check/check             fail  never pass
 test-amd64-amd64-xl-qemuu-win7-amd64 14 guest-stop             fail never pass
 test-amd64-amd64-xl-qemut-winxpsp3 14 guest-stop               fail never pass
 test-amd64-i386-xl-qemut-win7-amd64 14 guest-stop              fail never pass
 test-amd64-amd64-xl-qemuu-winxpsp3 14 guest-stop               fail never pass
 test-amd64-i386-pv            1 xen-build-check(1)        blocked in 25330 n/a
 test-amd64-i386-xend-qemut-winxpsp3  1 xen-build-check(1) blocked in 25330 n/a
 test-amd64-i386-xend-winxpsp3  1 xen-build-check(1)       blocked in 25330 n/a

version targeted for testing:
 xen                  5be1e95318147855713709094e6847e3104ae910
baseline version:
 xen                  29f130cfd9aca7ee12deddbbc0217f39d55bec60

------------------------------------------------------------
People who touched revisions under test:
  Ian Campbell <Ian.Campbell@xxxxxxxxxx>
  Ian Jackson <Ian.Jackson@xxxxxxxxxxxxx>
------------------------------------------------------------

jobs:
 build-amd64-xend                                             pass    
 build-i386-xend                                              pass    
 build-amd64                                                  pass    
 build-armhf                                                  pass    
 build-i386                                                   pass    
 build-amd64-oldkern                                          fail    
 build-i386-oldkern                                           fail    
 build-amd64-pvops                                            pass    
 build-armhf-pvops                                            pass    
 build-i386-pvops                                             pass    
 test-amd64-amd64-xl                                          fail    
 test-armhf-armhf-xl                                          pass    
 test-amd64-i386-xl                                           pass    
 test-amd64-i386-rhel6hvm-amd                                 pass    
 test-amd64-i386-qemut-rhel6hvm-amd                           pass    
 test-amd64-i386-qemuu-rhel6hvm-amd                           pass    
 test-amd64-i386-freebsd10-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-win7-amd64                               fail    
 test-amd64-i386-xl-win7-amd64                                fail    
 test-amd64-i386-xl-credit2                                   pass    
 test-amd64-i386-freebsd10-i386                               pass    
 test-amd64-amd64-xl-pcipt-intel                              fail    
 test-amd64-i386-rhel6hvm-intel                               pass    
 test-amd64-i386-qemut-rhel6hvm-intel                         pass    
 test-amd64-i386-qemuu-rhel6hvm-intel                         pass    
 test-amd64-i386-xl-multivcpu                                 pass    
 test-amd64-amd64-pair                                        pass    
 test-amd64-i386-pair                                         pass    
 test-amd64-amd64-xl-sedf-pin                                 pass    
 test-amd64-amd64-pv                                          pass    
 test-amd64-i386-pv                                           pass    
 test-amd64-amd64-xl-sedf                                     pass    
 test-amd64-i386-xl-qemut-winxpsp3-vcpus1                     fail    
 test-amd64-i386-xl-qemuu-winxpsp3-vcpus1                     fail    
 test-amd64-i386-xl-winxpsp3-vcpus1                           fail    
 test-amd64-i386-xend-qemut-winxpsp3                          fail    
 test-amd64-amd64-xl-qemut-winxpsp3                           fail    
 test-amd64-amd64-xl-qemuu-winxpsp3                           fail    
 test-amd64-i386-xend-winxpsp3                                fail    
 test-amd64-amd64-xl-winxpsp3                                 fail    


------------------------------------------------------------
sg-report-flight on woking.cam.xci-test.com
logs: /home/xc_osstest/logs
images: /home/xc_osstest/images

Logs, config files, etc. are available at
    http://www.chiark.greenend.org.uk/~xensrcts/logs

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


Not pushing.

------------------------------------------------------------
commit 5be1e95318147855713709094e6847e3104ae910
Author: Ian Jackson <ian.jackson@xxxxxxxxxxxxx>
Date:   Mon Feb 24 12:57:53 2014 +0000

    libxl: Fix libxl_postfork_child_noexec deadlock etc.
    
    libxl_postfork_child_noexec would nestedly reaquire the non-recursive
    "no_forking" mutex: atfork_lock uses it, as does sigchld_user_remove.
    The result on Linux is that the process always deadlocks before
    returning from this function.
    
    This is used by xl's console child.  So, the ultimate effect is that
    xl with pygrub does not manage to connect to the pygrub console.
    This behaviour was reported by Michael Young in Xen 4.4.0 RC5.
    
    Also, the use of sigchld_user_remove in libxl_postfork_child_noexec is
    not correct with SIGCHLD sharing.  libxl_postfork_child_noexec is
    documented to suffice if called only on one ctx.  So deregistering the
    ctx it's called on is not sufficient.  Instead, we need a new approach
    which discards the whole sigchld_user list and unconditionally removes
    our SIGCHLD handler if we had one.
    
    Prompted by this, clarify the semantics of
    libxl_postfork_child_noexec.  Specifically, expand on the meaning of
    "quickly" by explaining what operations are not permitted; and
    document the fact that the function doesn't reclaim the resources in
    the ctxs.
    
    And add a comment in libxl_postfork_child_noexec explaining the
    internal concurrency situation.
    
    This is an important bugfix.  IMO the bug is a blocker for Xen 4.4.
    
    Signed-off-by: Ian Jackson <Ian.Jackson@xxxxxxxxxxxxx>
    Reported-by: M A Young <m.a.young@xxxxxxxxxxxx>
    CC: Ian Campbell <Ian.Campbell@xxxxxxxxxx>
    CC: George Dunlap <george.dunlap@xxxxxxxxxxxxx>
    Acked-by: Ian Campbell <Ian.Campbell@xxxxxxxxxx>
    Release-acked-by: George Dunlap <george.dunlap@xxxxxxxxxxxxx>
(qemu changes not included)

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