[Xen-devel] [xen-unstable bisection] complete build-i386-oldkern

[xen.org <ian.jackson@xxxxxxxxxxxxx>]

branch xen-unstable
xen branch xen-unstable
job build-i386-oldkern
test xen-build

Tree: http://hg.uk.xensource.com/linux-2.6.18-xen.hg
Tree: http://hg.uk.xensource.com/xen-unstable.hg

*** Found and reproduced problem changeset ***

  Bug is in tree:  http://hg.uk.xensource.com/xen-unstable.hg
  Bug introduced:  62bf12040b0f
  Bug not present: 8420b82c22c2


  changeset:   22452:62bf12040b0f
  user:        Keir Fraser <keir@xxxxxxx>
  date:        Wed Dec 01 20:10:27 2010 +0000
  
      x86: fix IRQ migration when using directed EOI (broken with c/s 20465)
      
      In directed-EOI mode, there is no chance to do the migration in
      mask_and_ack_level_ioapic_irq(), as the remote IRR bit can't possibly
      be clear after issuing the EOI to the LAPIC. Consequently, there's no
      point to even try. Instead, migration must be done in
      end_level_ioapic_irq(), and it requires masking the interrupt source
      prior to issuing the EOI to the IO-APIC.
      
      Signed-off-by: Jan Beulich <jbeulich@xxxxxxxxxx>


For bisection revision-tuple graph see:
   
http://www.chiark.greenend.org.uk/~xensrcts/results/bisect.xen-unstable.build-i386-oldkern.xen-build.html
Revision IDs in each graph node refer, respectively, to the Trees above.

----------------------------------------
Found failure, as expected, in flight 2940
Host specification list: host=gall-mite
Searching for basis pass: 2856.
(tree in basispass but not in latest: 
git://mariner.uk.xensource.com/qemu-xen-unstable.git)
Tree: http://hg.uk.xensource.com/linux-2.6.18-xen.hg
Tree: http://hg.uk.xensource.com/xen-unstable.hg
Latest dc1d2d3da95f c443d0215854
Basis pass dc1d2d3da95f aba70e59a90d
Generating revisions with ./adhoc-revtuple-generator  
http://hg.uk.xensource.com/linux-2.6.18-xen.hg#dc1d2d3da95f-dc1d2d3da95f 
http://hg.uk.xensource.com/xen-unstable.hg#aba70e59a90d-c443d0215854
pulling from http://hg.uk.xensource.com/linux-2.6.18-xen.hg
searching for changes
no changes found
pulling from http://hg.uk.xensource.com/xen-unstable.hg
searching for changes
no changes found
pulling from http://hg.uk.xensource.com/linux-2.6.18-xen.hg
searching for changes
no changes found
pulling from http://hg.uk.xensource.com/xen-unstable.hg
searching for changes
no changes found
Loaded 2003 nodes in revision graph
Searching for test results:
 2869 pass dc1d2d3da95f d281061e6ec0
 2853 pass dc1d2d3da95f aba70e59a90d
 2885 pass dc1d2d3da95f 8420b82c22c2
 2930 fail dc1d2d3da95f c443d0215854
 2895 pass dc1d2d3da95f 8420b82c22c2
 2854 pass dc1d2d3da95f aba70e59a90d
 2938 fail dc1d2d3da95f c443d0215854
 2940 fail dc1d2d3da95f c443d0215854
 2855 pass dc1d2d3da95f aba70e59a90d
 2942 fail dc1d2d3da95f ddb6c9c6ebb9
 2943 fail dc1d2d3da95f c443d0215854
 2849 pass dc1d2d3da95f aba70e59a90d
 2856 pass dc1d2d3da95f aba70e59a90d
 2944 fail dc1d2d3da95f 62bf12040b0f
 2946 fail dc1d2d3da95f 62bf12040b0f
 2861 pass dc1d2d3da95f 3afb5ecbf69f
 2926 fail dc1d2d3da95f c443d0215854
Searching for interesting versions
 0 revisions at dc1d2d3da95f 8420b82c22c2
No revisions left to test, checking graph state.

*** Found and reproduced problem changeset ***

  Bug is in tree:  http://hg.uk.xensource.com/xen-unstable.hg
  Bug introduced:  62bf12040b0f
  Bug not present: 8420b82c22c2


  changeset:   22452:62bf12040b0f
  user:        Keir Fraser <keir@xxxxxxx>
  date:        Wed Dec 01 20:10:27 2010 +0000
  
      x86: fix IRQ migration when using directed EOI (broken with c/s 20465)
      
      In directed-EOI mode, there is no chance to do the migration in
      mask_and_ack_level_ioapic_irq(), as the remote IRR bit can't possibly
      be clear after issuing the EOI to the LAPIC. Consequently, there's no
      point to even try. Instead, migration must be done in
      end_level_ioapic_irq(), and it requires masking the interrupt source
      prior to issuing the EOI to the IO-APIC.
      
      Signed-off-by: Jan Beulich <jbeulich@xxxxxxxxxx>

Revision graph left in 
/home/xc_osstest/results/bisect.xen-unstable.build-i386-oldkern.xen-build.{dot,ps,png,html}.
----------------------------------------
2946: ALL FAIL

flight 2946 xen-unstable real-bisect [real]
http://www.chiark.greenend.org.uk/~xensrcts/logs/2946/

tests which did not succeed:
 build-i386-oldkern            4 xen-build                    fail

version targeted for testing:
baseline version:

jobs:
 build-i386-oldkern           fail     

-------------------------------------------------------------------------------
build-i386-oldkern:
 1 hosts-allocate               pass     
 2 host-install(2)              pass     
 3 host-build-prep              pass     
 4 xen-build                    fail     
 linux           1056:dc1d2d3da95f
 xen             22452:62bf12040b0f

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


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