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[xen-unstable-smoke test] 162626: regressions - FAIL



flight 162626 xen-unstable-smoke real [real]
flight 162628 xen-unstable-smoke real-retest [real]
http://logs.test-lab.xenproject.org/osstest/logs/162626/
http://logs.test-lab.xenproject.org/osstest/logs/162628/

Regressions :-(

Tests which did not succeed and are blocking,
including tests which could not be run:
 test-armhf-armhf-xl 18 guest-start/debian.repeat fail in 162618 REGR. vs. 
162574

Tests which are failing intermittently (not blocking):
 test-armhf-armhf-xl          14 guest-start                fail pass in 162618

Tests which did not succeed, but are not blocking:
 test-armhf-armhf-xl         15 migrate-support-check fail in 162618 never pass
 test-armhf-armhf-xl     16 saverestore-support-check fail in 162618 never pass
 test-amd64-amd64-libvirt     15 migrate-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

version targeted for testing:
 xen                  2bb17a45b1814b0b6aa4646eff58e16f876281fd
baseline version:
 xen                  3e09045991cde360432bc7437103f8f8a6699359

Last test of basis   162574  2021-06-09 14:00:34 Z    1 days
Failing since        162584  2021-06-10 00:00:27 Z    1 days    7 attempts
Testing same since   162607  2021-06-10 15:00:30 Z    0 days    3 attempts

------------------------------------------------------------
People who touched revisions under test:
  Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
  Edgar E. Iglesias <edgar.iglesias@xxxxxxxxxx>
  Jan Beulich <jbeulich@xxxxxxxx>
  Stefano Stabellini <sstabellini@xxxxxxxxxx>
  Stefano Stabellini <stefano.stabellini@xxxxxxxxxx>

jobs:
 build-arm64-xsm                                              pass    
 build-amd64                                                  pass    
 build-armhf                                                  pass    
 build-amd64-libvirt                                          pass    
 test-armhf-armhf-xl                                          fail    
 test-arm64-arm64-xl-xsm                                      pass    
 test-amd64-amd64-xl-qemuu-debianhvm-amd64                    pass    
 test-amd64-amd64-libvirt                                     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 2bb17a45b1814b0b6aa4646eff58e16f876281fd
Author: Jan Beulich <jbeulich@xxxxxxxx>
Date:   Thu Jun 10 16:56:24 2021 +0200

    x86: please Clang in arch_set_info_guest()
    
    Clang 10 reports
    
    domain.c:1328:10: error: variable 'cr3_mfn' is used uninitialized whenever 
'if' condition is false [-Werror,-Wsometimes-uninitialized]
        if ( !compat )
             ^~~~~~~
    domain.c:1334:34: note: uninitialized use occurs here
        cr3_page = get_page_from_mfn(cr3_mfn, d);
                                     ^~~~~~~
    domain.c:1328:5: note: remove the 'if' if its condition is always true
        if ( !compat )
        ^~~~~~~~~~~~~~
    domain.c:1042:18: note: initialize the variable 'cr3_mfn' to silence this 
warning
        mfn_t cr3_mfn;
                     ^
                      = 0
    domain.c:1189:14: error: variable 'fail' is used uninitialized whenever 
'if' condition is false [-Werror,-Wsometimes-uninitialized]
            if ( !compat )
                 ^~~~~~~
    domain.c:1211:9: note: uninitialized use occurs here
            fail |= v->arch.pv.gdt_ents != c(gdt_ents);
            ^~~~
    domain.c:1189:9: note: remove the 'if' if its condition is always true
            if ( !compat )
            ^~~~~~~~~~~~~~
    domain.c:1187:18: note: initialize the variable 'fail' to silence this 
warning
            bool fail;
                     ^
                      = false
    
    despite this being a build with -O2 in effect, and despite "compat"
    being constant "false" when CONFIG_COMPAT (and hence CONFIG_PV32) is not
    defined, as it gets set at the top of the function from the result of
    is_pv_32bit_domain().
    
    Re-arrange the two "offending" if()s such that when COMPAT=n the
    respective variables will be seen as unconditionally initialized. The
    original aim was to have the !compat cases first, though.
    
    Reported-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
    Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
    Acked-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>

commit dfcffb128be46a3e413eaa941744536fe53c94b6
Author: Stefano Stabellini <sstabellini@xxxxxxxxxx>
Date:   Wed Jun 9 10:37:59 2021 -0700

    xen/arm32: SPSR_hyp/SPSR
    
    SPSR_hyp is not meant to be accessed from Hyp mode (EL2); accesses
    trigger UNPREDICTABLE behaviour. Xen should read/write SPSR instead.
    See: ARM DDI 0487D.b page G8-5993.
    
    This fixes booting Xen/arm32 on QEMU.
    
    Signed-off-by: Stefano Stabellini <stefano.stabellini@xxxxxxxxxx>
    Reviewed-by: Julien Grall <jgrall@xxxxxxxxxx>
    Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xxxxxxxxxx>
    Tested-by: Edgar E. Iglesias <edgar.iglesias@xxxxxxxxxx>
(qemu changes not included)



 


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