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[xen-unstable bisection] complete test-amd64-i386-xl-shadow



branch xen-unstable
xenbranch xen-unstable
job test-amd64-i386-xl-shadow
testid xen-boot

Tree: linux git://xenbits.xen.org/linux-pvops.git
Tree: linuxfirmware git://xenbits.xen.org/osstest/linux-firmware.git
Tree: qemu git://xenbits.xen.org/qemu-xen-traditional.git
Tree: qemuu git://xenbits.xen.org/qemu-xen.git
Tree: xen git://xenbits.xen.org/xen.git

*** Found and reproduced problem changeset ***

  Bug is in tree:  xen git://xenbits.xen.org/xen.git
  Bug introduced:  4dc1815991420b809ce18dddfdf9c0af48944204
  Bug not present: 2d824791504f4119f04f95bafffec2e37d319c25
  Last fail repro: http://logs.test-lab.xenproject.org/osstest/logs/159579/


  commit 4dc1815991420b809ce18dddfdf9c0af48944204
  Author: Jan Beulich <jbeulich@xxxxxxxx>
  Date:   Fri Feb 19 17:19:56 2021 +0100
  
      x86/PV: harden guest memory accesses against speculative abuse
      
      Inspired by
      
https://lore.kernel.org/lkml/f12e7d3cecf41b2c29734ea45a393be21d4a8058.1597848273.git.jpoimboe@xxxxxxxxxx/
      and prior work in that area of x86 Linux, suppress speculation with
      guest specified pointer values by suitably masking the addresses to
      non-canonical space in case they fall into Xen's virtual address range.
      
      Introduce a new Kconfig control.
      
      Note that it is necessary in such code to avoid using "m" kind operands:
      If we didn't, there would be no guarantee that the register passed to
      guest_access_mask_ptr is also the (base) one used for the memory access.
      
      As a minor unrelated change in get_unsafe_asm() the unnecessary "itype"
      parameter gets dropped and the XOR on the fixup path gets changed to be
      a 32-bit one in all cases: This way we avoid pointless REX.W or operand
      size overrides, or writes to partial registers.
      
      Requested-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
      Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
      Reviewed-by: Roger Pau Monné <roger.pau@xxxxxxxxxx>
      Release-Acked-by: Ian Jackson <iwj@xxxxxxxxxxxxxx>


For bisection revision-tuple graph see:
   
http://logs.test-lab.xenproject.org/osstest/results/bisect/xen-unstable/test-amd64-i386-xl-shadow.xen-boot.html
Revision IDs in each graph node refer, respectively, to the Trees above.

----------------------------------------
Running cs-bisection-step 
--graph-out=/home/logs/results/bisect/xen-unstable/test-amd64-i386-xl-shadow.xen-boot
 --summary-out=tmp/159579.bisection-summary --basis-template=159475 
--blessings=real,real-bisect,real-retry xen-unstable test-amd64-i386-xl-shadow 
xen-boot
Searching for failure / basis pass:
 159559 fail [host=huxelrebe1] / 159475 [host=chardonnay1] 159453 
[host=elbling0] 159424 [host=albana1] 159396 [host=fiano1] 159362 [host=fiano0] 
159335 [host=albana0] 159315 [host=pinot1] 159202 [host=chardonnay0] 159134 
[host=elbling1] 159036 [host=chardonnay1] 159013 ok.
Failure / basis pass flights: 159559 / 159013
(tree with no url: minios)
(tree with no url: ovmf)
(tree with no url: seabios)
Tree: linux git://xenbits.xen.org/linux-pvops.git
Tree: linuxfirmware git://xenbits.xen.org/osstest/linux-firmware.git
Tree: qemu git://xenbits.xen.org/qemu-xen-traditional.git
Tree: qemuu git://xenbits.xen.org/qemu-xen.git
Tree: xen git://xenbits.xen.org/xen.git
Latest c3038e718a19fc596f7b1baba0f83d5146dc7784 
c530a75c1e6a472b0eb9558310b518f0dfcd8860 
3d273dd05e51e5a1ffba3d98c7437ee84e8f8764 
7ea428895af2840d85c524f0bd11a38aac308308 
f894c3d8e705fea9cb3244fa61684bfd8bdd1b2a
Basis pass c3038e718a19fc596f7b1baba0f83d5146dc7784 
c530a75c1e6a472b0eb9558310b518f0dfcd8860 
3d273dd05e51e5a1ffba3d98c7437ee84e8f8764 
7ea428895af2840d85c524f0bd11a38aac308308 
d203dbd69f1a02577dd6fe571d72beb980c548a6
Generating revisions with ./adhoc-revtuple-generator  
git://xenbits.xen.org/linux-pvops.git#c3038e718a19fc596f7b1baba0f83d5146dc7784-c3038e718a19fc596f7b1baba0f83d5146dc7784
 
git://xenbits.xen.org/osstest/linux-firmware.git#c530a75c1e6a472b0eb9558310b518f0dfcd8860-c530a75c1e6a472b0eb9558310b518f0dfcd8860
 
git://xenbits.xen.org/qemu-xen-traditional.git#3d273dd05e51e5a1ffba3d98c7437ee84e8f8764-3d273dd05e51e5a1ffba3d98c7437ee84e8f8764
 git://xenbits.xen.org/qemu-xen.git#7ea428895af2840d85c524f0bd11a38\
 aac308308-7ea428895af2840d85c524f0bd11a38aac308308 
git://xenbits.xen.org/xen.git#d203dbd69f1a02577dd6fe571d72beb980c548a6-f894c3d8e705fea9cb3244fa61684bfd8bdd1b2a
Loaded 5001 nodes in revision graph
Searching for test results:
 159013 pass c3038e718a19fc596f7b1baba0f83d5146dc7784 
c530a75c1e6a472b0eb9558310b518f0dfcd8860 
3d273dd05e51e5a1ffba3d98c7437ee84e8f8764 
7ea428895af2840d85c524f0bd11a38aac308308 
d203dbd69f1a02577dd6fe571d72beb980c548a6
 159036 [host=chardonnay1]
 159134 [host=elbling1]
 159202 [host=chardonnay0]
 159315 [host=pinot1]
 159335 [host=albana0]
 159362 [host=fiano0]
 159396 [host=fiano1]
 159424 [host=albana1]
 159453 [host=elbling0]
 159475 [host=chardonnay1]
 159487 fail c3038e718a19fc596f7b1baba0f83d5146dc7784 
c530a75c1e6a472b0eb9558310b518f0dfcd8860 
3d273dd05e51e5a1ffba3d98c7437ee84e8f8764 
7ea428895af2840d85c524f0bd11a38aac308308 
87a067fd8f4d4f7c6be02c3d38145115ac542017
 159491 fail c3038e718a19fc596f7b1baba0f83d5146dc7784 
c530a75c1e6a472b0eb9558310b518f0dfcd8860 
3d273dd05e51e5a1ffba3d98c7437ee84e8f8764 
7ea428895af2840d85c524f0bd11a38aac308308 
87a067fd8f4d4f7c6be02c3d38145115ac542017
 159508 fail c3038e718a19fc596f7b1baba0f83d5146dc7784 
c530a75c1e6a472b0eb9558310b518f0dfcd8860 
3d273dd05e51e5a1ffba3d98c7437ee84e8f8764 
7ea428895af2840d85c524f0bd11a38aac308308 
87a067fd8f4d4f7c6be02c3d38145115ac542017
 159526 fail c3038e718a19fc596f7b1baba0f83d5146dc7784 
c530a75c1e6a472b0eb9558310b518f0dfcd8860 
3d273dd05e51e5a1ffba3d98c7437ee84e8f8764 
7ea428895af2840d85c524f0bd11a38aac308308 
87a067fd8f4d4f7c6be02c3d38145115ac542017
 159540 fail c3038e718a19fc596f7b1baba0f83d5146dc7784 
c530a75c1e6a472b0eb9558310b518f0dfcd8860 
3d273dd05e51e5a1ffba3d98c7437ee84e8f8764 
7ea428895af2840d85c524f0bd11a38aac308308 
87a067fd8f4d4f7c6be02c3d38145115ac542017
 159561 pass c3038e718a19fc596f7b1baba0f83d5146dc7784 
c530a75c1e6a472b0eb9558310b518f0dfcd8860 
3d273dd05e51e5a1ffba3d98c7437ee84e8f8764 
7ea428895af2840d85c524f0bd11a38aac308308 
d203dbd69f1a02577dd6fe571d72beb980c548a6
 159564 fail c3038e718a19fc596f7b1baba0f83d5146dc7784 
c530a75c1e6a472b0eb9558310b518f0dfcd8860 
3d273dd05e51e5a1ffba3d98c7437ee84e8f8764 
7ea428895af2840d85c524f0bd11a38aac308308 
87a067fd8f4d4f7c6be02c3d38145115ac542017
 159565 pass c3038e718a19fc596f7b1baba0f83d5146dc7784 
c530a75c1e6a472b0eb9558310b518f0dfcd8860 
3d273dd05e51e5a1ffba3d98c7437ee84e8f8764 
7ea428895af2840d85c524f0bd11a38aac308308 
687121f8a0e7c1ea1c4fa3d056637e5819342f14
 159567 pass c3038e718a19fc596f7b1baba0f83d5146dc7784 
c530a75c1e6a472b0eb9558310b518f0dfcd8860 
3d273dd05e51e5a1ffba3d98c7437ee84e8f8764 
7ea428895af2840d85c524f0bd11a38aac308308 
b4159d2de0153eb8ce6aced1978e1917c07cf39d
 159568 fail c3038e718a19fc596f7b1baba0f83d5146dc7784 
c530a75c1e6a472b0eb9558310b518f0dfcd8860 
3d273dd05e51e5a1ffba3d98c7437ee84e8f8764 
7ea428895af2840d85c524f0bd11a38aac308308 
f954a1bf5f74ad6edce361d1bf1a29137ff374e8
 159569 pass c3038e718a19fc596f7b1baba0f83d5146dc7784 
c530a75c1e6a472b0eb9558310b518f0dfcd8860 
3d273dd05e51e5a1ffba3d98c7437ee84e8f8764 
7ea428895af2840d85c524f0bd11a38aac308308 
e8185c5f01c68f7d29d23a4a91bc1be1ff2cc1ca
 159571 pass c3038e718a19fc596f7b1baba0f83d5146dc7784 
c530a75c1e6a472b0eb9558310b518f0dfcd8860 
3d273dd05e51e5a1ffba3d98c7437ee84e8f8764 
7ea428895af2840d85c524f0bd11a38aac308308 
6a1d72d3739e330caf728ea07d656d7bf568824b
 159572 pass c3038e718a19fc596f7b1baba0f83d5146dc7784 
c530a75c1e6a472b0eb9558310b518f0dfcd8860 
3d273dd05e51e5a1ffba3d98c7437ee84e8f8764 
7ea428895af2840d85c524f0bd11a38aac308308 
2d824791504f4119f04f95bafffec2e37d319c25
 159573 fail c3038e718a19fc596f7b1baba0f83d5146dc7784 
c530a75c1e6a472b0eb9558310b518f0dfcd8860 
3d273dd05e51e5a1ffba3d98c7437ee84e8f8764 
7ea428895af2840d85c524f0bd11a38aac308308 
4dc1815991420b809ce18dddfdf9c0af48944204
 159574 pass c3038e718a19fc596f7b1baba0f83d5146dc7784 
c530a75c1e6a472b0eb9558310b518f0dfcd8860 
3d273dd05e51e5a1ffba3d98c7437ee84e8f8764 
7ea428895af2840d85c524f0bd11a38aac308308 
2d824791504f4119f04f95bafffec2e37d319c25
 159559 fail c3038e718a19fc596f7b1baba0f83d5146dc7784 
c530a75c1e6a472b0eb9558310b518f0dfcd8860 
3d273dd05e51e5a1ffba3d98c7437ee84e8f8764 
7ea428895af2840d85c524f0bd11a38aac308308 
f894c3d8e705fea9cb3244fa61684bfd8bdd1b2a
 159575 fail c3038e718a19fc596f7b1baba0f83d5146dc7784 
c530a75c1e6a472b0eb9558310b518f0dfcd8860 
3d273dd05e51e5a1ffba3d98c7437ee84e8f8764 
7ea428895af2840d85c524f0bd11a38aac308308 
4dc1815991420b809ce18dddfdf9c0af48944204
 159577 fail c3038e718a19fc596f7b1baba0f83d5146dc7784 
c530a75c1e6a472b0eb9558310b518f0dfcd8860 
3d273dd05e51e5a1ffba3d98c7437ee84e8f8764 
7ea428895af2840d85c524f0bd11a38aac308308 
f894c3d8e705fea9cb3244fa61684bfd8bdd1b2a
 159578 pass c3038e718a19fc596f7b1baba0f83d5146dc7784 
c530a75c1e6a472b0eb9558310b518f0dfcd8860 
3d273dd05e51e5a1ffba3d98c7437ee84e8f8764 
7ea428895af2840d85c524f0bd11a38aac308308 
2d824791504f4119f04f95bafffec2e37d319c25
 159579 fail c3038e718a19fc596f7b1baba0f83d5146dc7784 
c530a75c1e6a472b0eb9558310b518f0dfcd8860 
3d273dd05e51e5a1ffba3d98c7437ee84e8f8764 
7ea428895af2840d85c524f0bd11a38aac308308 
4dc1815991420b809ce18dddfdf9c0af48944204
Searching for interesting versions
 Result found: flight 159013 (pass), for basis pass
 For basis failure, parent search stopping at 
c3038e718a19fc596f7b1baba0f83d5146dc7784 
c530a75c1e6a472b0eb9558310b518f0dfcd8860 
3d273dd05e51e5a1ffba3d98c7437ee84e8f8764 
7ea428895af2840d85c524f0bd11a38aac308308 
2d824791504f4119f04f95bafffec2e37d319c25, results HASH(0x558c0d373a58) 
HASH(0x558c0d3e7de8) HASH(0x558c0d40d108) For basis failure, parent search 
stopping at c3038e718a19fc596f7b1baba0f83d5146dc7784 
c530a75c1e6a472b0eb9558310b518f0dfcd8860 
3d273dd05e51e5a1ffba3d98c7437ee84e8f8764 7ea428895\
 af2840d85c524f0bd11a38aac308308 6a1d72d3739e330caf728ea07d656d7bf568824b, 
results HASH(0x558c0d373ed8) For basis failure, parent search stopping at 
c3038e718a19fc596f7b1baba0f83d5146dc7784 
c530a75c1e6a472b0eb9558310b518f0dfcd8860 
3d273dd05e51e5a1ffba3d98c7437ee84e8f8764 
7ea428895af2840d85c524f0bd11a38aac308308 
e8185c5f01c68f7d29d23a4a91bc1be1ff2cc1ca, results HASH(0x558c0d40bbe0) For 
basis failure, parent search stopping at 
c3038e718a19fc596f7b1baba0f83d5146dc7784 c530a75c1e6a472b0eb9558310b518f\
 0dfcd8860 3d273dd05e51e5a1ffba3d98c7437ee84e8f8764 
7ea428895af2840d85c524f0bd11a38aac308308 
b4159d2de0153eb8ce6aced1978e1917c07cf39d, results HASH(0x558c0d382e60) For 
basis failure, parent search stopping at 
c3038e718a19fc596f7b1baba0f83d5146dc7784 
c530a75c1e6a472b0eb9558310b518f0dfcd8860 
3d273dd05e51e5a1ffba3d98c7437ee84e8f8764 
7ea428895af2840d85c524f0bd11a38aac308308 
687121f8a0e7c1ea1c4fa3d056637e5819342f14, results HASH(0x558c0d3863f0) For 
basis failure, parent search stopping at c3038e718a19\
 fc596f7b1baba0f83d5146dc7784 c530a75c1e6a472b0eb9558310b518f0dfcd8860 
3d273dd05e51e5a1ffba3d98c7437ee84e8f8764 
7ea428895af2840d85c524f0bd11a38aac308308 
d203dbd69f1a02577dd6fe571d72beb980c548a6, results HASH(0x558c0d378ff0) 
HASH(0x558c0d379a70) Result found: flight 159487 (fail), for basis failure (at 
ancestor ~76)
 Repro found: flight 159561 (pass), for basis pass
 Repro found: flight 159577 (fail), for basis failure
 0 revisions at c3038e718a19fc596f7b1baba0f83d5146dc7784 
c530a75c1e6a472b0eb9558310b518f0dfcd8860 
3d273dd05e51e5a1ffba3d98c7437ee84e8f8764 
7ea428895af2840d85c524f0bd11a38aac308308 
2d824791504f4119f04f95bafffec2e37d319c25
No revisions left to test, checking graph state.
 Result found: flight 159572 (pass), for last pass
 Result found: flight 159573 (fail), for first failure
 Repro found: flight 159574 (pass), for last pass
 Repro found: flight 159575 (fail), for first failure
 Repro found: flight 159578 (pass), for last pass
 Repro found: flight 159579 (fail), for first failure

*** Found and reproduced problem changeset ***

  Bug is in tree:  xen git://xenbits.xen.org/xen.git
  Bug introduced:  4dc1815991420b809ce18dddfdf9c0af48944204
  Bug not present: 2d824791504f4119f04f95bafffec2e37d319c25
  Last fail repro: http://logs.test-lab.xenproject.org/osstest/logs/159579/


  commit 4dc1815991420b809ce18dddfdf9c0af48944204
  Author: Jan Beulich <jbeulich@xxxxxxxx>
  Date:   Fri Feb 19 17:19:56 2021 +0100
  
      x86/PV: harden guest memory accesses against speculative abuse
      
      Inspired by
      
https://lore.kernel.org/lkml/f12e7d3cecf41b2c29734ea45a393be21d4a8058.1597848273.git.jpoimboe@xxxxxxxxxx/
      and prior work in that area of x86 Linux, suppress speculation with
      guest specified pointer values by suitably masking the addresses to
      non-canonical space in case they fall into Xen's virtual address range.
      
      Introduce a new Kconfig control.
      
      Note that it is necessary in such code to avoid using "m" kind operands:
      If we didn't, there would be no guarantee that the register passed to
      guest_access_mask_ptr is also the (base) one used for the memory access.
      
      As a minor unrelated change in get_unsafe_asm() the unnecessary "itype"
      parameter gets dropped and the XOR on the fixup path gets changed to be
      a 32-bit one in all cases: This way we avoid pointless REX.W or operand
      size overrides, or writes to partial registers.
      
      Requested-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
      Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
      Reviewed-by: Roger Pau Monné <roger.pau@xxxxxxxxxx>
      Release-Acked-by: Ian Jackson <iwj@xxxxxxxxxxxxxx>

Revision graph left in 
/home/logs/results/bisect/xen-unstable/test-amd64-i386-xl-shadow.xen-boot.{dot,ps,png,html,svg}.
----------------------------------------
159579: tolerable ALL FAIL

flight 159579 xen-unstable real-bisect [real]
http://logs.test-lab.xenproject.org/osstest/logs/159579/

Failures :-/ but no regressions.

Tests which did not succeed,
including tests which could not be run:
 test-amd64-i386-xl-shadow     8 xen-boot                fail baseline untested


jobs:
 test-amd64-i386-xl-shadow                                    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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