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[Xen-devel] [xen-unstable-smoke test] 122350: trouble: queued/running



flight 122350 xen-unstable-smoke running [real]
http://logs.test-lab.xenproject.org/osstest/logs/122350/

Failures and problems with tests :-(

Tests which did not succeed and are blocking,
including tests which could not be run:
 test-amd64-amd64-libvirt        <none executed>              queued
 test-amd64-amd64-xl-qemuu-debianhvm-i386    <none executed>             queued
 test-armhf-armhf-xl             <none executed>              queued
 build-amd64-libvirt             <none executed>              queued
 test-arm64-arm64-xl-xsm         <none executed>              queued
 build-amd64                   4 host-install(4)              running
 build-arm64-xsm               4 host-install(4)              running
 build-arm64-xsm               3 syslog-server                running
 build-amd64                   3 syslog-server                running
 build-armhf                   4 host-install(4)              running
 build-armhf                   3 syslog-server                running

version targeted for testing:
 xen                  1232378bd2fef45f613db049b33852fdf84d7ddf
baseline version:
 xen                  a6aa678fa380e9369cc44701a181142322b3a4b0

Last test of basis   122331  2018-04-16 13:10:31 Z    4 days
Testing same since                          (not found)         0 attempts

------------------------------------------------------------
People who touched revisions under test:
  Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
  George Dunlap <george.dunlap@xxxxxxxxxx>
  Ian Jackson <Ian.Jackson@xxxxxxxxxxxxx>
  Jan Beulich <jbeulich@xxxxxxxx>
  Roger Pau Monne <roger.pau@xxxxxxxxxx>
  Roger Pau Monné <roger.pau@xxxxxxxxxx>
  Wei Liu <wei.liu2@xxxxxxxxxx>

jobs:
 build-arm64-xsm                                              running 
 build-amd64                                                  running 
 build-armhf                                                  running 
 build-amd64-libvirt                                          queued  
 test-armhf-armhf-xl                                          queued  
 test-arm64-arm64-xl-xsm                                      queued  
 test-amd64-amd64-xl-qemuu-debianhvm-i386                     queued  
 test-amd64-amd64-libvirt                                     queued  


------------------------------------------------------------
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

broken-job test-amd64-amd64-libvirt queued
broken-job test-amd64-amd64-xl-qemuu-debianhvm-i386 queued
broken-job test-armhf-armhf-xl queued
broken-job build-amd64-libvirt queued
broken-job test-arm64-arm64-xl-xsm queued

Not pushing.

------------------------------------------------------------
commit 1232378bd2fef45f613db049b33852fdf84d7ddf
Author: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
Date:   Tue Apr 17 12:48:01 2018 +0000

    x86/spec_ctrl: Updates to retpoline-safety decision making
    
    All of this is as recommended by the Intel whitepaper:
    
    
https://software.intel.com/sites/default/files/managed/1d/46/Retpoline-A-Branch-Target-Injection-Mitigation.pdf
    
    The 'RSB Alternative' bit in MSR_ARCH_CAPABILITIES may be set by a 
hypervisor
    to indicate that the virtual machine may migrate to a processor which isn't
    retpoline-safe.  Introduce a shortened name (to reduce code volume), treat 
it
    as authorative in retpoline_safe(), and print its value along with the other
    ARCH_CAPS bits.
    
    The exact processor models which do have RSB semantics which fall back to 
BTB
    predictions are enumerated, and include Kabylake and Coffeelake.  Leave a
    printk() in the default case to help identify cases which aren't covered.
    
    The exact microcode versions from Broadwell RSB-safety are taken from the
    referenced microcode update file (adjusting for the known-bad microcode
    versions).  Despite the exact wording of the text, it is only Broadwell
    processors which need a microcode check.
    
    In practice, this means that all Broadwell hardware with up-to-date 
microcode
    will use retpoline in preference to IBRS, which will be a performance
    improvement for desktop and server systems which would previously always opt
    for IBRS over retpoline.
    
    Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
    Reviewed-by: Jan Beulich <jbeulich@xxxxxxxx>
    Release-acked-by: Juergen Gross <jgross@xxxxxxxx>

commit af7e907c33e7a8d81448e3fd2ce7939e24b200f8
Author: Roger Pau Monne <roger.pau@xxxxxxxxxx>
Date:   Tue Apr 17 14:03:41 2018 +0100

    libs/gnttab: fix FreeBSD gntdev interface
    
    Current interface to the gntdev in FreeBSD is wrong, and mostly worked
    out of luck before the PTI FreeBSD fixes, when kernel and user-space
    where sharing the same page tables.
    
    On FreeBSD ioctls have the size of the passed struct encoded in the ioctl
    number, because the generic ioctl handler in the OS takes care of
    copying the data from user-space to kernel space, and then calls the
    device specific ioctl handler. Thus using ioctl structs with variable
    sizes is not possible.
    
    The fix is to turn the array of structs at the end of
    ioctl_gntdev_alloc_gref and ioctl_gntdev_map_grant_ref into pointers,
    that can be properly accessed from the kernel gntdev driver using the
    copyin/copyout functions. Note that this is exactly how it's done for
    the privcmd driver.
    
    Signed-off-by: Roger Pau Monné <roger.pau@xxxxxxxxxx>
    Release-acked-by: Juergen Gross <jgross@xxxxxxxx>
    Acked-by: Wei Liu <wei.liu2@xxxxxxxxxx>

commit ef3ab46493f650b7e5cca2b2578a99ca0cbff195
Author: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
Date:   Tue Apr 17 18:43:49 2018 +0100

    x86: Use spec_ctrl_{enter,exit}_idle() in the S3/S5 path
    
    The main purpose of this patch is to avoid opencoding the recovery logic at
    the end, but also has the positive side effect of relaxing the SPEC_CTRL
    mitigations when working to shut the final CPU down.
    
    Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
    Reviewed-by: Jan Beulich <jbeulich@xxxxxxxx>
    Release-acked-by: Juergen Gross <jgross@xxxxxxxx>

commit a996273d1fc10d14598985703227bfa35a91f681
Author: Jan Beulich <jbeulich@xxxxxxxx>
Date:   Wed Apr 18 11:16:37 2018 +0200

    x86/msr: further correct the emulation behaviour of MSR_PRED_CMD
    
    Following commit a6aa678fa3 ("x86/msr: Correct the emulation behaviour
    of MSR_PRED_CMD") we may end up writing the low bit with the wrong
    value. While it's unlikely for a guest to want to write zero there, we
    should still permit (this without incurring the overhead of an actual
    barrier). Correcting this right away will also help whenever further
    bits in the MSR might become defined.
    
    Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
    Acked-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
    Release-acked-by: Juergen Gross <jgross@xxxxxxxx>

commit c081d2a0a68f6e574d8803e2781cade365ccd351
Merge: 0d37f90d61 a50238afa9
Author: Ian Jackson <ian.jackson@xxxxxxxxxxxxx>
Date:   Tue Apr 17 18:28:11 2018 +0100

    Merge remote-tracking branch 'origin/staging' into staging

commit 0d37f90d613e4b314fdebf7bc9017875aaec6935
Author: Ian Jackson <ian.jackson@xxxxxxxxxxxxx>
Date:   Tue Apr 17 17:22:49 2018 +0100

    README, Xen/Makefile: Xen 4.11 is -RC now
    
    Signed-off-by: Ian Jackson <Ian.Jackson@xxxxxxxxxxxxx>

commit b1282fe325cb99f33e092c589952b2569ca9cf54
Author: Ian Jackson <ian.jackson@xxxxxxxxxxxxx>
Date:   Tue Apr 17 17:19:33 2018 +0100

    Config.mk: Switch external trees to fixed tags for Xen 4.11.0-rc1
    
    The minios tag `xen-4.11.0-rc1' was mistakenly made on the wrong
    revision.  So we have burned that tag and use xen-4.11.0-rc1.1
    instead.
    
    Signed-off-by: Ian Jackson <Ian.Jackson@xxxxxxxxxxxxx>

commit bdfdf244f55ff11e8c4c607fff6815cb672cbdc1
Author: Ian Jackson <ian.jackson@xxxxxxxxxxxxx>
Date:   Tue Apr 17 17:53:01 2018 +0100

    mktarball: For qemu upstream, use their scripts/archive-source.sh
    
    qemu upstream uses git submodules.  git archive does not work with git
    submodules (and could not work properly with them, because this is one
    of the many things it is inherently impossible to do correctly with
    git submodules).
    
    qemu upstream have worked around this by providing a rather scary
    shell script which attempts to do roughly the right thing.  It's close
    enough that we can use it with only minor precautions.
    
    Unfortunately this does mean that `mktarball' now executes the qemu
    source code it was using, rather than merely shuffling it about, as it
    did previously.  I think this is a less bad ill than copying (and,
    effectively, forking) the scary script.
    
    CC: Wei Liu <wei.liu2@xxxxxxxxxx>
    CC: George Dunlap <george.dunlap@xxxxxxxxxxxxx>
    CC: Juergen Gross <jgross@xxxxxxxx>
    Signed-off-by: Ian Jackson <Ian.Jackson@xxxxxxxxxxxxx>
    Acked-by: George Dunlap <george.dunlap@xxxxxxxxxx>

commit a50238afa99c27f2aa4eb4e8060f3b81e8ed0d78
Author: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
Date:   Fri Mar 23 20:26:34 2018 +0000

    x86/traps: Misc non-functional improvements to set_debugreg()
    
     * Change 'int i' to being unsigned, and move it into its most narrow scope.
     * Fold the access_ok() checks for %dr{0..3}.  This halves the compiled size
       of the function.
     * Additional newlines in appropriate places.
    
    Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
    Reviewed-by: Jan Beulich <jbeulich@xxxxxxxx>
    Release-acked-by: Juergen Gross <jgross@xxxxxxxx>

commit f539ae27061c6811fd5e80e0755bf0514e22b977
Author: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
Date:   Fri Mar 23 20:26:34 2018 +0000

    x86/pv: Introduce and use x86emul_write_dr()
    
    set_debugreg() has several bugs:
    
     * %dr4/5 should function correctly as aliases of %dr6/7 when CR4.DE is 
clear.
     * Attempting to set the upper 32 bits of %dr6/7 should fail with #GP[0]
       rather than be silently corrected and complete.
     * For emulation, the #UD and #GP[0] cases need properly distinguishing.  
Use
       -ENODEV for #UD cases, leaving -EINVAL (bad bits) and -EPERM (not 
allowed to
       use that valid bit) as before for hypercall callers.
     * A write which clears %dr7.L/G leaves the IO shadow intact, meaning that
       subsequent reads of %dr7 will see stale IO watchpoint configuration.
    
    Implement x86emul_write_dr() as a thin wrapper around set_debugreg().
    
    Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
    Reviewed-by: Jan Beulich <jbeulich@xxxxxxxx>
    Release-acked-by: Juergen Gross <jgross@xxxxxxxx>

commit 881f8dc4314809293efc6f66f9af49734994bf0e
Author: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
Date:   Fri Mar 23 20:13:50 2018 +0000

    x86/pv: Introduce and use x86emul_read_dr()
    
    do_get_debugreg() has several bugs:
    
     * The %cr4.de condition is inverted.  %dr4/5 should be accessible only when
       %cr4.de is disabled.
     * When %cr4.de is disabled, emulation should yield #UD rather than complete
       with zero.
     * Using -EINVAL for errors is a broken ABI, as it overlaps with valid 
values
       near the top of the address space.
    
    Introduce a common x86emul_read_dr() handler (as we will eventually want to
    add HVM support) which separates its success/failure indication from the 
data
    value, and have do_get_debugreg() call into the handler.
    
    The ABI of do_get_debugreg() remains broken, but switches from -EINVAL to
    -ENODEV for compatibility with the changes in the following patch.
    
    Take the opportunity to add a missing local variable block to x86_emulate.c
    
    Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
    Acked-by: Jan Beulich <jbeulich@xxxxxxxx>
    Release-acked-by: Juergen Gross <jgross@xxxxxxxx>
(qemu changes not included)

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