[Xen-devel] [xen-unstable-coverity test] 101343: regressions - ALL FAIL

[osstest service owner <osstest-admin@xxxxxxxxxxxxxx>]

flight 101343 xen-unstable-coverity real [real]
http://logs.test-lab.xenproject.org/osstest/logs/101343/

Regressions :-(

Tests which did not succeed and are blocking,
including tests which could not be run:
 coverity-amd64                6 coverity-upload          fail REGR. vs. 101279

version targeted for testing:
 xen                  84c1e7d8017c773c41d6e8b79384f37a67be1479
baseline version:
 xen                  b7dd797c7fe4cd849018f78f6c7b9eb3d33b89d8

Last test of basis   101279  2016-10-05 09:19:19 Z    4 days
Testing same since   101343  2016-10-09 09:18:41 Z    0 days    1 attempts

------------------------------------------------------------
People who touched revisions under test:
  Jan Beulich <jbeulich@xxxxxxxx>
  Lan Tianyu <tianyu.lan@xxxxxxxxx>
  Razvan Cojocaru <rcojocaru@xxxxxxxxxxxxxxx>

jobs:
 coverity-amd64                                               fail    


------------------------------------------------------------
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 84c1e7d8017c773c41d6e8b79384f37a67be1479
Author: Razvan Cojocaru <rcojocaru@xxxxxxxxxxxxxxx>
Date:   Fri Oct 7 11:35:58 2016 +0200

    x86/hvm: remove emulation context setting from hvmemul_cmpxchg()
    
    hvmemul_cmpxchg() sets the read emulation context in p_new instead
    of p_old, which is inconsistent (and wrong). Since p_old is
    unused in any case and cmpxchg() semantics would be altered even
    if it wasn't, remove the emulation context setting code.
    
    Suggested-by: Jan Beulich <jbeulich@xxxxxxxx>
    Signed-off-by: Razvan Cojocaru <rcojocaru@xxxxxxxxxxxxxxx>

commit ed7e33747da83ce805c00cd457e71075e34f0854
Author: Lan Tianyu <tianyu.lan@xxxxxxxxx>
Date:   Fri Oct 7 11:35:26 2016 +0200

    timer: process softirq during dumping timer info
    
    Dumping timer info may run for a long time on the huge machine with
    a lot of physical cpus. To avoid triggering NMI watchdog, add
    process_pending_softirqs() in the loop of dumping timer info.
    
    Signed-off-by: Lan Tianyu <tianyu.lan@xxxxxxxxx>
    Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>

commit 9f5eff08a6a6f58645fb48382c843973674042c9
Author: Jan Beulich <jbeulich@xxxxxxxx>
Date:   Wed Oct 5 14:20:10 2016 +0200

    x86emul: check for FPU availability
    
    We can't exclude someone wanting to hide the FPU from guests.
    
    Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
    Reviewed-by: Andrew Cooper <andrew.cooper@xxxxxxxxxx>

commit beeeaa920049c88af035b3dee8e20926d9d426f8
Author: Jan Beulich <jbeulich@xxxxxxxx>
Date:   Wed Oct 5 14:19:43 2016 +0200

    x86emul: deliver correct math exceptions
    
    #MF only applies to x87 instructions. SSE and AVX ones need #XM to be
    raised instead, unless CR4.OSXMMEXCPT is clear, in which case #UD needs
    to result. (But note that this is only a latent issue - we don't
    emulate any instructions so far which could result in #XM.)
    
    Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
    Reviewed-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>

commit cab9638a42457d2ab360c60ec419cdef4c75ca54
Author: Jan Beulich <jbeulich@xxxxxxxx>
Date:   Wed Oct 5 14:18:42 2016 +0200

    x86emul: honor guest CR4.OSFXSR and CR4.OSXSAVE
    
    These checks belong into the emulator instead of hvmemul_get_fpu().
    
    The CR0.PE/EFLAGS.VM ones can actually just be ASSERT()ed, as decoding
    should make it impossible to get into get_fpu() with them in the wrong
    state.
    
    Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
    Reviewed-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
(qemu changes not included)

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