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[Xen-devel] [qemu-mainline bisection] complete build-amd64



branch xen-unstable
xenbranch xen-unstable
job build-amd64
testid xen-build

Tree: qemu git://xenbits.xen.org/qemu-xen-traditional.git
Tree: qemuu git://git.qemu.org/qemu.git
Tree: xen git://xenbits.xen.org/xen.git

*** Found and reproduced problem changeset ***

  Bug is in tree:  qemuu git://git.qemu.org/qemu.git
  Bug introduced:  52e94ea5de3ed9d7ddf1b0e5fc6ff7c2807ae711
  Bug not present: fe491fa85c4634453b340b18046aae2eaf8147db
  Last fail repro: http://logs.test-lab.xenproject.org/osstest/logs/108017/


  commit 52e94ea5de3ed9d7ddf1b0e5fc6ff7c2807ae711
  Merge: fe491fa 28b99f4
  Author: Peter Maydell <peter.maydell@xxxxxxxxxx>
  Date:   Wed Apr 26 10:22:31 2017 +0100
  
      Merge remote-tracking branch 
'remotes/sstabellini/tags/xen-20170421-v2-tag' into staging
      
      Xen 2017/04/21 + fix
      
      # gpg: Signature made Tue 25 Apr 2017 19:10:37 BST
      # gpg:                using RSA key 0x894F8F4870E1AE90
      # gpg: Good signature from "Stefano Stabellini 
<stefano.stabellini@xxxxxxxxxxxxx>"
      # gpg:                 aka "Stefano Stabellini <sstabellini@xxxxxxxxxx>"
      # Primary key fingerprint: D04E 33AB A51F 67BA 07D3  0AEA 894F 8F48 70E1 
AE90
      
      * remotes/sstabellini/tags/xen-20170421-v2-tag: (21 commits)
        move xen-mapcache.c to hw/i386/xen/
        move xen-hvm.c to hw/i386/xen/
        move xen-common.c to hw/xen/
        add xen-9p-backend to MAINTAINERS under Xen
        xen/9pfs: build and register Xen 9pfs backend
        xen/9pfs: send responses back to the frontend
        xen/9pfs: implement in/out_iov_from_pdu and vmarshal/vunmarshal
        xen/9pfs: receive requests from the frontend
        xen/9pfs: connect to the frontend
        xen/9pfs: introduce Xen 9pfs backend
        9p: introduce a type for the 9p header
        xen: import ring.h from xen
        configure: use pkg-config for obtaining xen version
        xen: additionally restrict xenforeignmemory operations
        xen: use libxendevice model to restrict operations
        xen: use 5 digit xen versions
        xen: use libxendevicemodel when available
        configure: detect presence of libxendevicemodel
        xen: create wrappers for all other uses of xc_hvm_XXX() functions
        xen: rename xen_modified_memory() to xen_hvm_modified_memory()
        ...
      
      Signed-off-by: Peter Maydell <peter.maydell@xxxxxxxxxx>
  
  commit 28b99f473bda682385da944b0404aedbe11ea0dc
  Author: Anthony Xu <anthony.xu@xxxxxxxxx>
  Date:   Wed Apr 5 16:21:31 2017 -0700
  
      move xen-mapcache.c to hw/i386/xen/
      
      move xen-mapcache.c to hw/i386/xen/
      
      Signed-off -by: Anthony Xu <anthony.xu@xxxxxxxxx>
      Reviewed-by: Stefano Stabellini <sstabellini@xxxxxxxxxx>
  
  commit 93d43e7e11ad43f7aa1e648319385ecf289b1884
  Author: Anthony Xu <anthony.xu@xxxxxxxxx>
  Date:   Wed Apr 5 16:21:30 2017 -0700
  
      move xen-hvm.c to hw/i386/xen/
      
      move xen-hvm.c to hw/i386/xen/
      
      Signed-off -by: Anthony Xu <anthony.xu@xxxxxxxxx>
      Reviewed-by: Stefano Stabellini <sstabellini@xxxxxxxxxx>
  
  commit 56e2cd24527867ac65aa86fc1820e5b700ccfa03
  Author: Anthony Xu <anthony.xu@xxxxxxxxx>
  Date:   Wed Apr 5 16:21:29 2017 -0700
  
      move xen-common.c to hw/xen/
      
      move xen-common.c to hw/xen/
      
      Signed-off -by: Anthony Xu <anthony.xu@xxxxxxxxx>
      Reviewed-by: Stefano Stabellini <sstabellini@xxxxxxxxxx>
  
  commit d6a3f64ad3e8136758bc71e47f860974204c7a12
  Author: Stefano Stabellini <sstabellini@xxxxxxxxxx>
  Date:   Wed Mar 22 10:18:09 2017 -0700
  
      add xen-9p-backend to MAINTAINERS under Xen
      
      Signed-off-by: Stefano Stabellini <sstabellini@xxxxxxxxxx>
      Signed-off-by: Stefano Stabellini <stefano@xxxxxxxxxxx>
      Reviewed-by: Greg Kurz <groug@xxxxxxxx>
      CC: groug@xxxxxxxx
      CC: anthony.perard@xxxxxxxxxx
  
  commit e737b6d5c3d69bde91c8cc554a8ce6d20e14feaa
  Author: Stefano Stabellini <sstabellini@xxxxxxxxxx>
  Date:   Wed Mar 22 10:17:09 2017 -0700
  
      xen/9pfs: build and register Xen 9pfs backend
      
      Signed-off-by: Stefano Stabellini <stefano@xxxxxxxxxxx>
      Reviewed-by: Greg Kurz <groug@xxxxxxxx>
      CC: anthony.perard@xxxxxxxxxx
      CC: jgross@xxxxxxxx
      CC: Aneesh Kumar K.V <aneesh.kumar@xxxxxxxxxxxxxxxxxx>
      CC: Greg Kurz <groug@xxxxxxxx>
  
  commit 4476e09e34d4257d2bfbdb70d106a154f42c928b
  Author: Stefano Stabellini <sstabellini@xxxxxxxxxx>
  Date:   Wed Mar 22 10:16:09 2017 -0700
  
      xen/9pfs: send responses back to the frontend
      
      Once a request is completed, xen_9pfs_push_and_notify gets called. In
      xen_9pfs_push_and_notify, update the indexes (data has already been
      copied to the sg by the common code) and send a notification to the
      frontend.
      
      Schedule the bottom-half to check if we already have any other requests
      pending.
      
      Signed-off-by: Stefano Stabellini <stefano@xxxxxxxxxxx>
      CC: anthony.perard@xxxxxxxxxx
      CC: jgross@xxxxxxxx
      CC: Aneesh Kumar K.V <aneesh.kumar@xxxxxxxxxxxxxxxxxx>
      CC: Greg Kurz <groug@xxxxxxxx>
  
  commit 40a2389207fb1a7ee179a9eba1b2fe9a5584bbc3
  Author: Stefano Stabellini <sstabellini@xxxxxxxxxx>
  Date:   Wed Mar 22 10:16:06 2017 -0700
  
      xen/9pfs: implement in/out_iov_from_pdu and vmarshal/vunmarshal
      
      Implement xen_9pfs_init_in/out_iov_from_pdu and
      xen_9pfs_pdu_vmarshal/vunmarshall by creating new sg pointing to the
      data on the ring.
      
      This is safe as we only handle one request per ring at any given time.
      
      Signed-off-by: Stefano Stabellini <stefano@xxxxxxxxxxx>
      CC: anthony.perard@xxxxxxxxxx
      CC: jgross@xxxxxxxx
      CC: Aneesh Kumar K.V <aneesh.kumar@xxxxxxxxxxxxxxxxxx>
      CC: Greg Kurz <groug@xxxxxxxx>
  
  commit 47b70fb1e4b619c9d6de74776a6c7c8e5c7719ee
  Author: Stefano Stabellini <sstabellini@xxxxxxxxxx>
  Date:   Wed Mar 22 10:16:03 2017 -0700
  
      xen/9pfs: receive requests from the frontend
      
      Upon receiving an event channel notification from the frontend, schedule
      the bottom half. From the bottom half, read one request from the ring,
      create a pdu and call pdu_submit to handle it.
      
      For now, only handle one request per ring at a time.
      
      Signed-off-by: Stefano Stabellini <stefano@xxxxxxxxxxx>
      CC: anthony.perard@xxxxxxxxxx
      CC: jgross@xxxxxxxx
      CC: Aneesh Kumar K.V <aneesh.kumar@xxxxxxxxxxxxxxxxxx>
      CC: Greg Kurz <groug@xxxxxxxx>
  
  commit f23ef34a5dec56103e1348a622a6adf7c87c821f
  Author: Stefano Stabellini <sstabellini@xxxxxxxxxx>
  Date:   Wed Mar 22 10:15:59 2017 -0700
  
      xen/9pfs: connect to the frontend
      
      Write the limits of the backend to xenstore. Connect to the frontend.
      Upon connection, allocate the rings according to the protocol
      specification.
      
      Initialize a QEMUBH to schedule work upon receiving an event channel
      notification from the frontend.
      
      Signed-off-by: Stefano Stabellini <stefano@xxxxxxxxxxx>
      CC: anthony.perard@xxxxxxxxxx
      CC: jgross@xxxxxxxx
      CC: Aneesh Kumar K.V <aneesh.kumar@xxxxxxxxxxxxxxxxxx>
      CC: Greg Kurz <groug@xxxxxxxx>
  
  commit b37eeb020123d16a2ba10b16b9923088f727b005
  Author: Stefano Stabellini <sstabellini@xxxxxxxxxx>
  Date:   Tue Mar 21 13:51:34 2017 -0700
  
      xen/9pfs: introduce Xen 9pfs backend
      
      Introduce the Xen 9pfs backend: add struct XenDevOps to register as a
      Xen backend and add struct V9fsTransport to register as v9fs transport.
      
      All functions are empty stubs for now.
      
      Signed-off-by: Stefano Stabellini <stefano@xxxxxxxxxxx>
      Reviewed-by: Greg Kurz <groug@xxxxxxxx>
      CC: anthony.perard@xxxxxxxxxx
      CC: jgross@xxxxxxxx
      CC: Aneesh Kumar K.V <aneesh.kumar@xxxxxxxxxxxxxxxxxx>
      CC: Greg Kurz <groug@xxxxxxxx>
  
  commit c9fb47e7d028b7c76655625880eb30666619f636
  Author: Stefano Stabellini <sstabellini@xxxxxxxxxx>
  Date:   Tue Mar 21 13:51:34 2017 -0700
  
      9p: introduce a type for the 9p header
      
      Use the new type in virtio-9p-device.
      
      Signed-off-by: Stefano Stabellini <stefano@xxxxxxxxxxx>
      Reviewed-by: Greg Kurz <groug@xxxxxxxx>
      Reviewed-by: Philippe Mathieu-Daudé <f4bug@xxxxxxxxx>
      CC: anthony.perard@xxxxxxxxxx
      CC: jgross@xxxxxxxx
      CC: Aneesh Kumar K.V <aneesh.kumar@xxxxxxxxxxxxxxxxxx>
      CC: Greg Kurz <groug@xxxxxxxx>
  
  commit f65eadb6394340ccf7d23533c7844b6e21c056e9
  Author: Stefano Stabellini <sstabellini@xxxxxxxxxx>
  Date:   Tue Mar 21 13:51:25 2017 -0700
  
      xen: import ring.h from xen
      
      Do not use the ring.h header installed on the system. Instead, import
      the header into the QEMU codebase. This avoids problems when QEMU is
      built against a Xen version too old to provide all the ring macros.
      
      Signed-off-by: Stefano Stabellini <stefano@xxxxxxxxxxx>
      Reviewed-by: Greg Kurz <groug@xxxxxxxx>
      CC: anthony.perard@xxxxxxxxxx
      CC: jgross@xxxxxxxx
  
  commit c1cdd9d5beb052b072c1f57ea634e3c52e9dc17b
  Author: Juergen Gross <jgross@xxxxxxxx>
  Date:   Mon Mar 27 09:42:45 2017 +0200
  
      configure: use pkg-config for obtaining xen version
      
      Instead of trying to guess the Xen version to use by compiling various
      test programs first just ask the system via pkg-config. Only if it
      can't return the version fall back to the test program scheme.
      
      If configure is being called with dedicated flags for the Xen libraries
      use those instead of the pkg-config output. This will avoid breaking
      an in-tree Xen build of an old Xen version while a new Xen version is
      installed on the build machine: pkg-config would pick up the installed
      Xen config files as the Xen tree wouldn't contain any of them.
      
      Signed-off-by: Juergen Gross <jgross@xxxxxxxx>
      Signed-off-by: Stefano Stabellini <sstabellini@xxxxxxxxxx>
      Tested-by: Paul Durrant <paul.durrant@xxxxxxxxxx>
      Reviewed-by: Stefano Stabellini <sstabellini@xxxxxxxxxx>
  
  commit 14d015b6fcd0b94a1e0983f82fab3e144143a314
  Author: Paul Durrant <paul.durrant@xxxxxxxxxx>
  Date:   Tue Mar 28 16:54:55 2017 +0100
  
      xen: additionally restrict xenforeignmemory operations
      
      Commit f0f272baf3a7 "xen: use libxendevice model to restrict operations"
      added a command-line option (-xen-domid-restrict) to limit operations
      using the libxendevicemodel API to a specified domid. The commit also
      noted that the restriction would be extended to cover operations issued
      via other xen libraries by subsequent patches.
      
      My recent Xen patch [1] added a call to the xenforeignmemory API to allow
      it to be restricted. This patch now makes use of that new call when the
      -xen-domid-restrict option is passed.
      
      [1] http://xenbits.xen.org/gitweb/?p=xen.git;a=commit;h=5823d6eb
      
      Signed-off-by: Paul Durrant <paul.durrant@xxxxxxxxxx>
      Signed-off-by: Stefano Stabellini <sstabellini@xxxxxxxxxx>
      Reviewed-by: Stefano Stabellini <sstabellini@xxxxxxxxxx>
  
  commit 1c599472b02783ee80691bfdaa465af9fbf25c8a
  Author: Paul Durrant <paul.durrant@xxxxxxxxxx>
  Date:   Wed Mar 22 09:39:15 2017 +0000
  
      xen: use libxendevice model to restrict operations
      
      This patch adds a command-line option (-xen-domid-restrict) which will
      use the new libxendevicemodel API to restrict devicemodel [1] operations
      to the specified domid. (Such operations are not applicable to the xenpv
      machine type).
      
      This patch also adds a tracepoint to allow successful enabling of the
      restriction to be monitored.
      
      [1] I.e. operations issued by libxendevicemodel. Operation issued by other
          xen libraries (e.g. libxenforeignmemory) are currently still 
unrestricted
          but this will be rectified by subsequent patches.
      
      Signed-off-by: Paul Durrant <paul.durrant@xxxxxxxxxx>
      Reviewed-by: Stefano Stabellini <sstabellini@xxxxxxxxxx>
  
  commit f1167ee684279bffabe7bb3ab23eff87577fe427
  Author: Juergen Gross <jgross@xxxxxxxx>
  Date:   Thu Mar 16 15:19:52 2017 +0100
  
      xen: use 5 digit xen versions
      
      Today qemu is using e.g. the value 480 for Xen version 4.8.0. As some
      Xen version tests are using ">" relations this scheme will lead to
      problems when Xen version 4.10.0 is being reached.
      
      Instead of the 3 digit schem use a 5 digit scheme (e.g. 40800 for
      version 4.8.0).
      
      Signed-off-by: Juergen Gross <jgross@xxxxxxxx>
      Signed-off-by: Stefano Stabellini <sstabellini@xxxxxxxxxx>
      Reviewed-by: Stefano Stabellini <sstabellini@xxxxxxxxxx>
  
  commit d655f34e6d6a68f64e885fa85295e0c7a31ce846
  Author: Paul Durrant <paul.durrant@xxxxxxxxxx>
  Date:   Tue Mar 7 10:55:34 2017 +0000
  
      xen: use libxendevicemodel when available
      
      This patch modifies the wrapper functions in xen_common.h to use the
      new xendevicemodel interface if it is available along with compatibility
      code to use the old libxenctrl interface if it is not.
      
      Signed-off-by: Paul Durrant <paul.durrant@xxxxxxxxxx>
      Signed-off-by: Stefano Stabellini <sstabellini@xxxxxxxxxx>
      Reviewed-by: Anthony Perard <anthony.perard@xxxxxxxxxx>
      Reviewed-by: Stefano Stabellini <sstabellini@xxxxxxxxxx>
  
  commit da8090ccb7735aed5a46ce27dfbe8486cfce61f5
  Author: Paul Durrant <paul.durrant@xxxxxxxxxx>
  Date:   Tue Mar 7 10:55:33 2017 +0000
  
      configure: detect presence of libxendevicemodel
      
      This patch adds code in configure to set CONFIG_XEN_CTRL_INTERFACE_VERSION
      to a new value of 490 if libxendevicemodel is present in the build
      environment.
      
      Signed-off-by: Paul Durrant <paul.durrant@xxxxxxxxxx>
      Signed-off-by: Stefano Stabellini <sstabellini@xxxxxxxxxx>
      Reviewed-by: Anthony Perard <anthony.perard@xxxxxxxxxx>
      Reviewed-by: Stefano Stabellini <sstabellini@xxxxxxxxxx>
  
  commit 8f25e7544150abd4bfd4ef35fe152c049b5ea5e7
  Author: Paul Durrant <paul.durrant@xxxxxxxxxx>
  Date:   Tue Mar 7 10:55:32 2017 +0000
  
      xen: create wrappers for all other uses of xc_hvm_XXX() functions
      
      This patch creates inline wrapper functions in xen_common.h for all open
      coded calls to xc_hvm_XXX() functions outside of xen_common.h so that use
      of xen_xc can be made implicit. This again is in preparation for the move
      to using libxendevicemodel.
      
      Signed-off-by: Paul Durrant <paul.durrant@xxxxxxxxxx>
      Reviewed-by: Anthony Perard <anthony.perard@xxxxxxxxxx>
      Reviewed-by: Stefano Stabellini <sstabellini@xxxxxxxxxx>
  
  commit 5100afb5f59906f63490c050d2eee578b9ba2b3d
  Author: Paul Durrant <paul.durrant@xxxxxxxxxx>
  Date:   Tue Mar 7 10:55:31 2017 +0000
  
      xen: rename xen_modified_memory() to xen_hvm_modified_memory()
      
      This patch is a purely cosmetic change that avoids a name collision in
      a subsequent patch.
      
      Signed-off-by: Paul Durrant <paul.durrant@xxxxxxxxxx>
      Reviewed-by: Anthony Perard <anthony.perard@xxxxxxxxxx>
      Reviewed-by: Stefano Stabellini <sstabellini@xxxxxxxxxx>
  
  commit 260cabed718c4d3137553a4a98de268b0fb166b7
  Author: Paul Durrant <paul.durrant@xxxxxxxxxx>
  Date:   Tue Mar 7 10:55:30 2017 +0000
  
      xen: make use of xen_xc implicit in xen_common.h inlines
      
      Doing this will make the transition to using the new libxendevicemodel
      interface less intrusive on the callers of these functions, since using
      the new library will require a change of handle.
      
      NOTE: The patch also moves the 'externs' for xen_xc and xen_fmem from
            xen_backend.h to xen_common.h, and the declarations from
            xen_backend.c to xen-common.c, which is where they belong.
      
      Signed-off-by: Paul Durrant <paul.durrant@xxxxxxxxxx>
      Reviewed-by: Anthony Perard <anthony.perard@xxxxxxxxxx>
      Reviewed-by: Stefano Stabellini <sstabellini@xxxxxxxxxx>


For bisection revision-tuple graph see:
   
http://logs.test-lab.xenproject.org/osstest/results/bisect/qemu-mainline/build-amd64.xen-build.html
Revision IDs in each graph node refer, respectively, to the Trees above.

----------------------------------------
Running cs-bisection-step 
--graph-out=/home/logs/results/bisect/qemu-mainline/build-amd64.xen-build 
--summary-out=tmp/108017.bisection-summary --basis-template=107636 
--blessings=real,real-bisect qemu-mainline build-amd64 xen-build
Searching for failure / basis pass:
 107986 fail [host=chardonnay1] / 107644 [host=godello1] 107636 [host=godello0] 
107610 [host=godello1] 107598 [host=godello0] 107580 [host=pinot0] 107572 
[host=godello1] 107557 [host=godello1] 107542 [host=godello1] 107531 
[host=godello0] 107501 ok.
Failure / basis pass flights: 107986 / 107501
(tree with no url: minios)
(tree with no url: ovmf)
(tree with no url: seabios)
Tree: qemu git://xenbits.xen.org/qemu-xen-traditional.git
Tree: qemuu git://git.qemu.org/qemu.git
Tree: xen git://xenbits.xen.org/xen.git
Latest 8051789e982499050680a26febeada7467e18a8d 
81b2d5ceb0cfb4cdc2163492e3169ed714b0cda9 
0a5370ee1f9808fbb16bb03d7f349921cf73a2d4
Basis pass 8051789e982499050680a26febeada7467e18a8d 
9c6b899f7a46893ab3b671e341a2234e9c0c060e 
e412c03be25dee8202a440b973561afd8ab6d868
Generating revisions with ./adhoc-revtuple-generator  
git://xenbits.xen.org/qemu-xen-traditional.git#8051789e982499050680a26febeada7467e18a8d-8051789e982499050680a26febeada7467e18a8d
 
git://git.qemu.org/qemu.git#9c6b899f7a46893ab3b671e341a2234e9c0c060e-81b2d5ceb0cfb4cdc2163492e3169ed714b0cda9
 
git://xenbits.xen.org/xen.git#e412c03be25dee8202a440b973561afd8ab6d868-0a5370ee1f9808fbb16bb03d7f349921cf73a2d4
Loaded 18450 nodes in revision graph
Searching for test results:
 107501 pass 8051789e982499050680a26febeada7467e18a8d 
9c6b899f7a46893ab3b671e341a2234e9c0c060e 
e412c03be25dee8202a440b973561afd8ab6d868
 107531 [host=godello0]
 107542 [host=godello1]
 107557 [host=godello1]
 107572 [host=godello1]
 107598 [host=godello0]
 107609 [host=godello1]
 107611 [host=pinot0]
 107580 [host=pinot0]
 107610 [host=godello1]
 107636 [host=godello0]
 107698 [host=godello0]
 107644 [host=godello1]
 107687 [host=godello0]
 107736 fail irrelevant
 107777 fail irrelevant
 107758 fail irrelevant
 107788 fail irrelevant
 107808 fail irrelevant
 107841 fail irrelevant
 107826 fail irrelevant
 107884 fail irrelevant
 107911 fail 8051789e982499050680a26febeada7467e18a8d 
81b2d5ceb0cfb4cdc2163492e3169ed714b0cda9 
0a5370ee1f9808fbb16bb03d7f349921cf73a2d4
 108003 pass 8051789e982499050680a26febeada7467e18a8d 
fe491fa85c4634453b340b18046aae2eaf8147db 
a9404c0e530554078300d7f2a1c9858f3407c7ae
 107936 fail 8051789e982499050680a26febeada7467e18a8d 
81b2d5ceb0cfb4cdc2163492e3169ed714b0cda9 
0a5370ee1f9808fbb16bb03d7f349921cf73a2d4
 107982 fail 8051789e982499050680a26febeada7467e18a8d 
81b2d5ceb0cfb4cdc2163492e3169ed714b0cda9 
0a5370ee1f9808fbb16bb03d7f349921cf73a2d4
 107996 pass 8051789e982499050680a26febeada7467e18a8d 
af7ec403b213544667cbc275926fa23b54e0cb02 
68e9e96953f7aad1bb3b2a1c15c26bbd94897346
 107997 pass 8051789e982499050680a26febeada7467e18a8d 
07ed50a2bb66a4d5ab2d7e54a5dfc4b618cccacc 
68e9e96953f7aad1bb3b2a1c15c26bbd94897346
 108007 pass 8051789e982499050680a26febeada7467e18a8d 
fe491fa85c4634453b340b18046aae2eaf8147db 
9182835740ac37cf5295b15eb47058f39fc14c8f
 107984 fail 8051789e982499050680a26febeada7467e18a8d 
78f86a2b7c6b5c490a612729816473485d7ac570 
cd91ab08eaa23409440ef6b4f5ad6e651b629c3b
 107998 pass 8051789e982499050680a26febeada7467e18a8d 
32c7e0ab755745e961f1772e95cac381cc68769d 
07abf27c0fcb53f1bdba58ef1748af36a6f5cb6c
 107987 pass 8051789e982499050680a26febeada7467e18a8d 
71cd4dace9abf51469cfbf6db622124993955f78 
8829d12ac0f9e3f7b01f276cd966c5a39497da92
 107989 pass 8051789e982499050680a26febeada7467e18a8d 
4ba967ad7454c08d7e01b047d34d0c3d98f2a10d 
8829d12ac0f9e3f7b01f276cd966c5a39497da92
 108008 pass 8051789e982499050680a26febeada7467e18a8d 
fe491fa85c4634453b340b18046aae2eaf8147db 
144aec4140515c53bb1676df71a469f3e285c557
 108013 fail 8051789e982499050680a26febeada7467e18a8d 
52e94ea5de3ed9d7ddf1b0e5fc6ff7c2807ae711 
cd91ab08eaa23409440ef6b4f5ad6e651b629c3b
 108001 fail 8051789e982499050680a26febeada7467e18a8d 
52e94ea5de3ed9d7ddf1b0e5fc6ff7c2807ae711 
cd91ab08eaa23409440ef6b4f5ad6e651b629c3b
 107978 pass 8051789e982499050680a26febeada7467e18a8d 
9c6b899f7a46893ab3b671e341a2234e9c0c060e 
e412c03be25dee8202a440b973561afd8ab6d868
 108009 pass 8051789e982499050680a26febeada7467e18a8d 
fe491fa85c4634453b340b18046aae2eaf8147db 
cd91ab08eaa23409440ef6b4f5ad6e651b629c3b
 107991 pass 8051789e982499050680a26febeada7467e18a8d 
eab1e53cacfb1d877317d5e7b416ddb43858d92e 
99704f26360ee8d4f85081c6c50ce64f47961f6d
 107993 pass 8051789e982499050680a26febeada7467e18a8d 
9eb2575e6c2cb902db88eb5539c66d32a30a94cf 
99704f26360ee8d4f85081c6c50ce64f47961f6d
 108002 pass 8051789e982499050680a26febeada7467e18a8d 
0fc8aec7de64f2bf83a274a2a38b938ce03425d2 
8829d12ac0f9e3f7b01f276cd966c5a39497da92
 107994 pass 8051789e982499050680a26febeada7467e18a8d 
2cf9953beebd194a432ebd567399807d9b1f6a4d 
8829d12ac0f9e3f7b01f276cd966c5a39497da92
 108010 fail 8051789e982499050680a26febeada7467e18a8d 
52e94ea5de3ed9d7ddf1b0e5fc6ff7c2807ae711 
cd91ab08eaa23409440ef6b4f5ad6e651b629c3b
 107995 pass 8051789e982499050680a26febeada7467e18a8d 
b4c963fa82ff5c0d7a991acb7e72e33f12eed1d4 
68e9e96953f7aad1bb3b2a1c15c26bbd94897346
 108016 pass 8051789e982499050680a26febeada7467e18a8d 
fe491fa85c4634453b340b18046aae2eaf8147db 
cd91ab08eaa23409440ef6b4f5ad6e651b629c3b
 107986 fail 8051789e982499050680a26febeada7467e18a8d 
81b2d5ceb0cfb4cdc2163492e3169ed714b0cda9 
0a5370ee1f9808fbb16bb03d7f349921cf73a2d4
 108011 pass 8051789e982499050680a26febeada7467e18a8d 
fe491fa85c4634453b340b18046aae2eaf8147db 
cd91ab08eaa23409440ef6b4f5ad6e651b629c3b
 108017 fail 8051789e982499050680a26febeada7467e18a8d 
52e94ea5de3ed9d7ddf1b0e5fc6ff7c2807ae711 
cd91ab08eaa23409440ef6b4f5ad6e651b629c3b
Searching for interesting versions
 Result found: flight 107501 (pass), for basis pass
 Result found: flight 107911 (fail), for basis failure
 Repro found: flight 107978 (pass), for basis pass
 Repro found: flight 107982 (fail), for basis failure
 0 revisions at 8051789e982499050680a26febeada7467e18a8d 
fe491fa85c4634453b340b18046aae2eaf8147db 
cd91ab08eaa23409440ef6b4f5ad6e651b629c3b
No revisions left to test, checking graph state.
 Result found: flight 108009 (pass), for last pass
 Result found: flight 108010 (fail), for first failure
 Repro found: flight 108011 (pass), for last pass
 Repro found: flight 108013 (fail), for first failure
 Repro found: flight 108016 (pass), for last pass
 Repro found: flight 108017 (fail), for first failure

*** Found and reproduced problem changeset ***

  Bug is in tree:  qemuu git://git.qemu.org/qemu.git
  Bug introduced:  52e94ea5de3ed9d7ddf1b0e5fc6ff7c2807ae711
  Bug not present: fe491fa85c4634453b340b18046aae2eaf8147db
  Last fail repro: http://logs.test-lab.xenproject.org/osstest/logs/108017/


  commit 52e94ea5de3ed9d7ddf1b0e5fc6ff7c2807ae711
  Merge: fe491fa 28b99f4
  Author: Peter Maydell <peter.maydell@xxxxxxxxxx>
  Date:   Wed Apr 26 10:22:31 2017 +0100
  
      Merge remote-tracking branch 
'remotes/sstabellini/tags/xen-20170421-v2-tag' into staging
      
      Xen 2017/04/21 + fix
      
      # gpg: Signature made Tue 25 Apr 2017 19:10:37 BST
      # gpg:                using RSA key 0x894F8F4870E1AE90
      # gpg: Good signature from "Stefano Stabellini 
<stefano.stabellini@xxxxxxxxxxxxx>"
      # gpg:                 aka "Stefano Stabellini <sstabellini@xxxxxxxxxx>"
      # Primary key fingerprint: D04E 33AB A51F 67BA 07D3  0AEA 894F 8F48 70E1 
AE90
      
      * remotes/sstabellini/tags/xen-20170421-v2-tag: (21 commits)
        move xen-mapcache.c to hw/i386/xen/
        move xen-hvm.c to hw/i386/xen/
        move xen-common.c to hw/xen/
        add xen-9p-backend to MAINTAINERS under Xen
        xen/9pfs: build and register Xen 9pfs backend
        xen/9pfs: send responses back to the frontend
        xen/9pfs: implement in/out_iov_from_pdu and vmarshal/vunmarshal
        xen/9pfs: receive requests from the frontend
        xen/9pfs: connect to the frontend
        xen/9pfs: introduce Xen 9pfs backend
        9p: introduce a type for the 9p header
        xen: import ring.h from xen
        configure: use pkg-config for obtaining xen version
        xen: additionally restrict xenforeignmemory operations
        xen: use libxendevice model to restrict operations
        xen: use 5 digit xen versions
        xen: use libxendevicemodel when available
        configure: detect presence of libxendevicemodel
        xen: create wrappers for all other uses of xc_hvm_XXX() functions
        xen: rename xen_modified_memory() to xen_hvm_modified_memory()
        ...
      
      Signed-off-by: Peter Maydell <peter.maydell@xxxxxxxxxx>
  
  commit 28b99f473bda682385da944b0404aedbe11ea0dc
  Author: Anthony Xu <anthony.xu@xxxxxxxxx>
  Date:   Wed Apr 5 16:21:31 2017 -0700
  
      move xen-mapcache.c to hw/i386/xen/
      
      move xen-mapcache.c to hw/i386/xen/
      
      Signed-off -by: Anthony Xu <anthony.xu@xxxxxxxxx>
      Reviewed-by: Stefano Stabellini <sstabellini@xxxxxxxxxx>
  
  commit 93d43e7e11ad43f7aa1e648319385ecf289b1884
  Author: Anthony Xu <anthony.xu@xxxxxxxxx>
  Date:   Wed Apr 5 16:21:30 2017 -0700
  
      move xen-hvm.c to hw/i386/xen/
      
      move xen-hvm.c to hw/i386/xen/
      
      Signed-off -by: Anthony Xu <anthony.xu@xxxxxxxxx>
      Reviewed-by: Stefano Stabellini <sstabellini@xxxxxxxxxx>
  
  commit 56e2cd24527867ac65aa86fc1820e5b700ccfa03
  Author: Anthony Xu <anthony.xu@xxxxxxxxx>
  Date:   Wed Apr 5 16:21:29 2017 -0700
  
      move xen-common.c to hw/xen/
      
      move xen-common.c to hw/xen/
      
      Signed-off -by: Anthony Xu <anthony.xu@xxxxxxxxx>
      Reviewed-by: Stefano Stabellini <sstabellini@xxxxxxxxxx>
  
  commit d6a3f64ad3e8136758bc71e47f860974204c7a12
  Author: Stefano Stabellini <sstabellini@xxxxxxxxxx>
  Date:   Wed Mar 22 10:18:09 2017 -0700
  
      add xen-9p-backend to MAINTAINERS under Xen
      
      Signed-off-by: Stefano Stabellini <sstabellini@xxxxxxxxxx>
      Signed-off-by: Stefano Stabellini <stefano@xxxxxxxxxxx>
      Reviewed-by: Greg Kurz <groug@xxxxxxxx>
      CC: groug@xxxxxxxx
      CC: anthony.perard@xxxxxxxxxx
  
  commit e737b6d5c3d69bde91c8cc554a8ce6d20e14feaa
  Author: Stefano Stabellini <sstabellini@xxxxxxxxxx>
  Date:   Wed Mar 22 10:17:09 2017 -0700
  
      xen/9pfs: build and register Xen 9pfs backend
      
      Signed-off-by: Stefano Stabellini <stefano@xxxxxxxxxxx>
      Reviewed-by: Greg Kurz <groug@xxxxxxxx>
      CC: anthony.perard@xxxxxxxxxx
      CC: jgross@xxxxxxxx
      CC: Aneesh Kumar K.V <aneesh.kumar@xxxxxxxxxxxxxxxxxx>
      CC: Greg Kurz <groug@xxxxxxxx>
  
  commit 4476e09e34d4257d2bfbdb70d106a154f42c928b
  Author: Stefano Stabellini <sstabellini@xxxxxxxxxx>
  Date:   Wed Mar 22 10:16:09 2017 -0700
  
      xen/9pfs: send responses back to the frontend
      
      Once a request is completed, xen_9pfs_push_and_notify gets called. In
      xen_9pfs_push_and_notify, update the indexes (data has already been
      copied to the sg by the common code) and send a notification to the
      frontend.
      
      Schedule the bottom-half to check if we already have any other requests
      pending.
      
      Signed-off-by: Stefano Stabellini <stefano@xxxxxxxxxxx>
      CC: anthony.perard@xxxxxxxxxx
      CC: jgross@xxxxxxxx
      CC: Aneesh Kumar K.V <aneesh.kumar@xxxxxxxxxxxxxxxxxx>
      CC: Greg Kurz <groug@xxxxxxxx>
  
  commit 40a2389207fb1a7ee179a9eba1b2fe9a5584bbc3
  Author: Stefano Stabellini <sstabellini@xxxxxxxxxx>
  Date:   Wed Mar 22 10:16:06 2017 -0700
  
      xen/9pfs: implement in/out_iov_from_pdu and vmarshal/vunmarshal
      
      Implement xen_9pfs_init_in/out_iov_from_pdu and
      xen_9pfs_pdu_vmarshal/vunmarshall by creating new sg pointing to the
      data on the ring.
      
      This is safe as we only handle one request per ring at any given time.
      
      Signed-off-by: Stefano Stabellini <stefano@xxxxxxxxxxx>
      CC: anthony.perard@xxxxxxxxxx
      CC: jgross@xxxxxxxx
      CC: Aneesh Kumar K.V <aneesh.kumar@xxxxxxxxxxxxxxxxxx>
      CC: Greg Kurz <groug@xxxxxxxx>
  
  commit 47b70fb1e4b619c9d6de74776a6c7c8e5c7719ee
  Author: Stefano Stabellini <sstabellini@xxxxxxxxxx>
  Date:   Wed Mar 22 10:16:03 2017 -0700
  
      xen/9pfs: receive requests from the frontend
      
      Upon receiving an event channel notification from the frontend, schedule
      the bottom half. From the bottom half, read one request from the ring,
      create a pdu and call pdu_submit to handle it.
      
      For now, only handle one request per ring at a time.
      
      Signed-off-by: Stefano Stabellini <stefano@xxxxxxxxxxx>
      CC: anthony.perard@xxxxxxxxxx
      CC: jgross@xxxxxxxx
      CC: Aneesh Kumar K.V <aneesh.kumar@xxxxxxxxxxxxxxxxxx>
      CC: Greg Kurz <groug@xxxxxxxx>
  
  commit f23ef34a5dec56103e1348a622a6adf7c87c821f
  Author: Stefano Stabellini <sstabellini@xxxxxxxxxx>
  Date:   Wed Mar 22 10:15:59 2017 -0700
  
      xen/9pfs: connect to the frontend
      
      Write the limits of the backend to xenstore. Connect to the frontend.
      Upon connection, allocate the rings according to the protocol
      specification.
      
      Initialize a QEMUBH to schedule work upon receiving an event channel
      notification from the frontend.
      
      Signed-off-by: Stefano Stabellini <stefano@xxxxxxxxxxx>
      CC: anthony.perard@xxxxxxxxxx
      CC: jgross@xxxxxxxx
      CC: Aneesh Kumar K.V <aneesh.kumar@xxxxxxxxxxxxxxxxxx>
      CC: Greg Kurz <groug@xxxxxxxx>
  
  commit b37eeb020123d16a2ba10b16b9923088f727b005
  Author: Stefano Stabellini <sstabellini@xxxxxxxxxx>
  Date:   Tue Mar 21 13:51:34 2017 -0700
  
      xen/9pfs: introduce Xen 9pfs backend
      
      Introduce the Xen 9pfs backend: add struct XenDevOps to register as a
      Xen backend and add struct V9fsTransport to register as v9fs transport.
      
      All functions are empty stubs for now.
      
      Signed-off-by: Stefano Stabellini <stefano@xxxxxxxxxxx>
      Reviewed-by: Greg Kurz <groug@xxxxxxxx>
      CC: anthony.perard@xxxxxxxxxx
      CC: jgross@xxxxxxxx
      CC: Aneesh Kumar K.V <aneesh.kumar@xxxxxxxxxxxxxxxxxx>
      CC: Greg Kurz <groug@xxxxxxxx>
  
  commit c9fb47e7d028b7c76655625880eb30666619f636
  Author: Stefano Stabellini <sstabellini@xxxxxxxxxx>
  Date:   Tue Mar 21 13:51:34 2017 -0700
  
      9p: introduce a type for the 9p header
      
      Use the new type in virtio-9p-device.
      
      Signed-off-by: Stefano Stabellini <stefano@xxxxxxxxxxx>
      Reviewed-by: Greg Kurz <groug@xxxxxxxx>
      Reviewed-by: Philippe Mathieu-Daudé <f4bug@xxxxxxxxx>
      CC: anthony.perard@xxxxxxxxxx
      CC: jgross@xxxxxxxx
      CC: Aneesh Kumar K.V <aneesh.kumar@xxxxxxxxxxxxxxxxxx>
      CC: Greg Kurz <groug@xxxxxxxx>
  
  commit f65eadb6394340ccf7d23533c7844b6e21c056e9
  Author: Stefano Stabellini <sstabellini@xxxxxxxxxx>
  Date:   Tue Mar 21 13:51:25 2017 -0700
  
      xen: import ring.h from xen
      
      Do not use the ring.h header installed on the system. Instead, import
      the header into the QEMU codebase. This avoids problems when QEMU is
      built against a Xen version too old to provide all the ring macros.
      
      Signed-off-by: Stefano Stabellini <stefano@xxxxxxxxxxx>
      Reviewed-by: Greg Kurz <groug@xxxxxxxx>
      CC: anthony.perard@xxxxxxxxxx
      CC: jgross@xxxxxxxx
  
  commit c1cdd9d5beb052b072c1f57ea634e3c52e9dc17b
  Author: Juergen Gross <jgross@xxxxxxxx>
  Date:   Mon Mar 27 09:42:45 2017 +0200
  
      configure: use pkg-config for obtaining xen version
      
      Instead of trying to guess the Xen version to use by compiling various
      test programs first just ask the system via pkg-config. Only if it
      can't return the version fall back to the test program scheme.
      
      If configure is being called with dedicated flags for the Xen libraries
      use those instead of the pkg-config output. This will avoid breaking
      an in-tree Xen build of an old Xen version while a new Xen version is
      installed on the build machine: pkg-config would pick up the installed
      Xen config files as the Xen tree wouldn't contain any of them.
      
      Signed-off-by: Juergen Gross <jgross@xxxxxxxx>
      Signed-off-by: Stefano Stabellini <sstabellini@xxxxxxxxxx>
      Tested-by: Paul Durrant <paul.durrant@xxxxxxxxxx>
      Reviewed-by: Stefano Stabellini <sstabellini@xxxxxxxxxx>
  
  commit 14d015b6fcd0b94a1e0983f82fab3e144143a314
  Author: Paul Durrant <paul.durrant@xxxxxxxxxx>
  Date:   Tue Mar 28 16:54:55 2017 +0100
  
      xen: additionally restrict xenforeignmemory operations
      
      Commit f0f272baf3a7 "xen: use libxendevice model to restrict operations"
      added a command-line option (-xen-domid-restrict) to limit operations
      using the libxendevicemodel API to a specified domid. The commit also
      noted that the restriction would be extended to cover operations issued
      via other xen libraries by subsequent patches.
      
      My recent Xen patch [1] added a call to the xenforeignmemory API to allow
      it to be restricted. This patch now makes use of that new call when the
      -xen-domid-restrict option is passed.
      
      [1] http://xenbits.xen.org/gitweb/?p=xen.git;a=commit;h=5823d6eb
      
      Signed-off-by: Paul Durrant <paul.durrant@xxxxxxxxxx>
      Signed-off-by: Stefano Stabellini <sstabellini@xxxxxxxxxx>
      Reviewed-by: Stefano Stabellini <sstabellini@xxxxxxxxxx>
  
  commit 1c599472b02783ee80691bfdaa465af9fbf25c8a
  Author: Paul Durrant <paul.durrant@xxxxxxxxxx>
  Date:   Wed Mar 22 09:39:15 2017 +0000
  
      xen: use libxendevice model to restrict operations
      
      This patch adds a command-line option (-xen-domid-restrict) which will
      use the new libxendevicemodel API to restrict devicemodel [1] operations
      to the specified domid. (Such operations are not applicable to the xenpv
      machine type).
      
      This patch also adds a tracepoint to allow successful enabling of the
      restriction to be monitored.
      
      [1] I.e. operations issued by libxendevicemodel. Operation issued by other
          xen libraries (e.g. libxenforeignmemory) are currently still 
unrestricted
          but this will be rectified by subsequent patches.
      
      Signed-off-by: Paul Durrant <paul.durrant@xxxxxxxxxx>
      Reviewed-by: Stefano Stabellini <sstabellini@xxxxxxxxxx>
  
  commit f1167ee684279bffabe7bb3ab23eff87577fe427
  Author: Juergen Gross <jgross@xxxxxxxx>
  Date:   Thu Mar 16 15:19:52 2017 +0100
  
      xen: use 5 digit xen versions
      
      Today qemu is using e.g. the value 480 for Xen version 4.8.0. As some
      Xen version tests are using ">" relations this scheme will lead to
      problems when Xen version 4.10.0 is being reached.
      
      Instead of the 3 digit schem use a 5 digit scheme (e.g. 40800 for
      version 4.8.0).
      
      Signed-off-by: Juergen Gross <jgross@xxxxxxxx>
      Signed-off-by: Stefano Stabellini <sstabellini@xxxxxxxxxx>
      Reviewed-by: Stefano Stabellini <sstabellini@xxxxxxxxxx>
  
  commit d655f34e6d6a68f64e885fa85295e0c7a31ce846
  Author: Paul Durrant <paul.durrant@xxxxxxxxxx>
  Date:   Tue Mar 7 10:55:34 2017 +0000
  
      xen: use libxendevicemodel when available
      
      This patch modifies the wrapper functions in xen_common.h to use the
      new xendevicemodel interface if it is available along with compatibility
      code to use the old libxenctrl interface if it is not.
      
      Signed-off-by: Paul Durrant <paul.durrant@xxxxxxxxxx>
      Signed-off-by: Stefano Stabellini <sstabellini@xxxxxxxxxx>
      Reviewed-by: Anthony Perard <anthony.perard@xxxxxxxxxx>
      Reviewed-by: Stefano Stabellini <sstabellini@xxxxxxxxxx>
  
  commit da8090ccb7735aed5a46ce27dfbe8486cfce61f5
  Author: Paul Durrant <paul.durrant@xxxxxxxxxx>
  Date:   Tue Mar 7 10:55:33 2017 +0000
  
      configure: detect presence of libxendevicemodel
      
      This patch adds code in configure to set CONFIG_XEN_CTRL_INTERFACE_VERSION
      to a new value of 490 if libxendevicemodel is present in the build
      environment.
      
      Signed-off-by: Paul Durrant <paul.durrant@xxxxxxxxxx>
      Signed-off-by: Stefano Stabellini <sstabellini@xxxxxxxxxx>
      Reviewed-by: Anthony Perard <anthony.perard@xxxxxxxxxx>
      Reviewed-by: Stefano Stabellini <sstabellini@xxxxxxxxxx>
  
  commit 8f25e7544150abd4bfd4ef35fe152c049b5ea5e7
  Author: Paul Durrant <paul.durrant@xxxxxxxxxx>
  Date:   Tue Mar 7 10:55:32 2017 +0000
  
      xen: create wrappers for all other uses of xc_hvm_XXX() functions
      
      This patch creates inline wrapper functions in xen_common.h for all open
      coded calls to xc_hvm_XXX() functions outside of xen_common.h so that use
      of xen_xc can be made implicit. This again is in preparation for the move
      to using libxendevicemodel.
      
      Signed-off-by: Paul Durrant <paul.durrant@xxxxxxxxxx>
      Reviewed-by: Anthony Perard <anthony.perard@xxxxxxxxxx>
      Reviewed-by: Stefano Stabellini <sstabellini@xxxxxxxxxx>
  
  commit 5100afb5f59906f63490c050d2eee578b9ba2b3d
  Author: Paul Durrant <paul.durrant@xxxxxxxxxx>
  Date:   Tue Mar 7 10:55:31 2017 +0000
  
      xen: rename xen_modified_memory() to xen_hvm_modified_memory()
      
      This patch is a purely cosmetic change that avoids a name collision in
      a subsequent patch.
      
      Signed-off-by: Paul Durrant <paul.durrant@xxxxxxxxxx>
      Reviewed-by: Anthony Perard <anthony.perard@xxxxxxxxxx>
      Reviewed-by: Stefano Stabellini <sstabellini@xxxxxxxxxx>
  
  commit 260cabed718c4d3137553a4a98de268b0fb166b7
  Author: Paul Durrant <paul.durrant@xxxxxxxxxx>
  Date:   Tue Mar 7 10:55:30 2017 +0000
  
      xen: make use of xen_xc implicit in xen_common.h inlines
      
      Doing this will make the transition to using the new libxendevicemodel
      interface less intrusive on the callers of these functions, since using
      the new library will require a change of handle.
      
      NOTE: The patch also moves the 'externs' for xen_xc and xen_fmem from
            xen_backend.h to xen_common.h, and the declarations from
            xen_backend.c to xen-common.c, which is where they belong.
      
      Signed-off-by: Paul Durrant <paul.durrant@xxxxxxxxxx>
      Reviewed-by: Anthony Perard <anthony.perard@xxxxxxxxxx>
      Reviewed-by: Stefano Stabellini <sstabellini@xxxxxxxxxx>

Revision graph left in 
/home/logs/results/bisect/qemu-mainline/build-amd64.xen-build.{dot,ps,png,html,svg}.
----------------------------------------
108017: tolerable ALL FAIL

flight 108017 qemu-mainline real-bisect [real]
http://logs.test-lab.xenproject.org/osstest/logs/108017/

Failures :-/ but no regressions.

Tests which did not succeed,
including tests which could not be run:
 build-amd64                   5 xen-build               fail baseline untested


jobs:
 build-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


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