* [xen-unstable bisection] complete test-xtf-amd64-amd64-2
@ 2021-02-24 7:47 osstest service owner
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From: osstest service owner @ 2021-02-24 7:47 UTC (permalink / raw
To: xen-devel, osstest-admin
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branch xen-unstable
xenbranch xen-unstable
job test-xtf-amd64-amd64-2
testid xtf/test-pv32pae-selftest
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
Tree: xtf git://xenbits.xen.org/xtf.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/159617/
commit 4dc1815991420b809ce18dddfdf9c0af48944204
Author: Jan Beulich <jbeulich@suse.com>
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@redhat.com/
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@citrix.com>
Signed-off-by: Jan Beulich <jbeulich@suse.com>
Reviewed-by: Roger Pau Monné <roger.pau@citrix.com>
Release-Acked-by: Ian Jackson <iwj@xenproject.org>
For bisection revision-tuple graph see:
http://logs.test-lab.xenproject.org/osstest/results/bisect/xen-unstable/test-xtf-amd64-amd64-2.xtf--test-pv32pae-selftest.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-xtf-amd64-amd64-2.xtf--test-pv32pae-selftest --summary-out=tmp/159617.bisection-summary --basis-template=159475 --blessings=real,real-bisect,real-retry xen-unstable test-xtf-amd64-amd64-2 xtf/test-pv32pae-selftest
Searching for failure / basis pass:
159576 fail [host=chardonnay1] / 159475 [host=godello0] 159453 [host=godello0] 159424 [host=huxelrebe1] 159396 [host=albana1] 159362 [host=godello1] 159335 ok.
Failure / basis pass flights: 159576 / 159335
(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
Tree: xtf git://xenbits.xen.org/xtf.git
Latest c3038e718a19fc596f7b1baba0f83d5146dc7784 c530a75c1e6a472b0eb9558310b518f0dfcd8860 3d273dd05e51e5a1ffba3d98c7437ee84e8f8764 7ea428895af2840d85c524f0bd11a38aac308308 f894c3d8e705fea9cb3244fa61684bfd8bdd1b2a 8ab15139728a8efd3ebbb60beb16a958a6a93fa1
Basis pass c3038e718a19fc596f7b1baba0f83d5146dc7784 c530a75c1e6a472b0eb9558310b518f0dfcd8860 3d273dd05e51e5a1ffba3d98c7437ee84e8f8764 7ea428895af2840d85c524f0bd11a38aac308308 04085ec1ac05a362812e9b0c6b5a8713d7dc88ad 8ab15139728a8efd3ebbb60beb16a958a6a93fa1
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#04085ec1ac05a362812e9b0c6b5a8713d7dc88ad-f894c3d8e705fea9cb3244fa61684bfd8bdd1b2a git://xenbits.xen.org/xtf.git#8ab15139728a8efd3ebbb60beb16a958a6a93fa1-8ab15139728a8efd3ebbb60beb16a958a6a93fa1
Loaded 5001 nodes in revision graph
Searching for test results:
159315 [host=chardonnay0]
159335 pass c3038e718a19fc596f7b1baba0f83d5146dc7784 c530a75c1e6a472b0eb9558310b518f0dfcd8860 3d273dd05e51e5a1ffba3d98c7437ee84e8f8764 7ea428895af2840d85c524f0bd11a38aac308308 04085ec1ac05a362812e9b0c6b5a8713d7dc88ad 8ab15139728a8efd3ebbb60beb16a958a6a93fa1
159362 [host=godello1]
159396 [host=albana1]
159424 [host=huxelrebe1]
159453 [host=godello0]
159475 [host=godello0]
159487 [host=godello1]
159491 [host=albana0]
159508 [host=fiano0]
159526 [host=huxelrebe1]
159540 [host=elbling0]
159559 [host=fiano1]
159597 [host=fiano1]
159599 [host=fiano1]
159576 fail c3038e718a19fc596f7b1baba0f83d5146dc7784 c530a75c1e6a472b0eb9558310b518f0dfcd8860 3d273dd05e51e5a1ffba3d98c7437ee84e8f8764 7ea428895af2840d85c524f0bd11a38aac308308 f894c3d8e705fea9cb3244fa61684bfd8bdd1b2a 8ab15139728a8efd3ebbb60beb16a958a6a93fa1
159601 [host=fiano1]
159603 pass c3038e718a19fc596f7b1baba0f83d5146dc7784 c530a75c1e6a472b0eb9558310b518f0dfcd8860 3d273dd05e51e5a1ffba3d98c7437ee84e8f8764 7ea428895af2840d85c524f0bd11a38aac308308 04085ec1ac05a362812e9b0c6b5a8713d7dc88ad 8ab15139728a8efd3ebbb60beb16a958a6a93fa1
159604 fail c3038e718a19fc596f7b1baba0f83d5146dc7784 c530a75c1e6a472b0eb9558310b518f0dfcd8860 3d273dd05e51e5a1ffba3d98c7437ee84e8f8764 7ea428895af2840d85c524f0bd11a38aac308308 f894c3d8e705fea9cb3244fa61684bfd8bdd1b2a 8ab15139728a8efd3ebbb60beb16a958a6a93fa1
159605 pass c3038e718a19fc596f7b1baba0f83d5146dc7784 c530a75c1e6a472b0eb9558310b518f0dfcd8860 3d273dd05e51e5a1ffba3d98c7437ee84e8f8764 7ea428895af2840d85c524f0bd11a38aac308308 6a1d72d3739e330caf728ea07d656d7bf568824b 8ab15139728a8efd3ebbb60beb16a958a6a93fa1
159607 fail c3038e718a19fc596f7b1baba0f83d5146dc7784 c530a75c1e6a472b0eb9558310b518f0dfcd8860 3d273dd05e51e5a1ffba3d98c7437ee84e8f8764 7ea428895af2840d85c524f0bd11a38aac308308 336fbbdf61562e5ae1112f24bc90c1164adf2144 8ab15139728a8efd3ebbb60beb16a958a6a93fa1
159608 fail c3038e718a19fc596f7b1baba0f83d5146dc7784 c530a75c1e6a472b0eb9558310b518f0dfcd8860 3d273dd05e51e5a1ffba3d98c7437ee84e8f8764 7ea428895af2840d85c524f0bd11a38aac308308 f954a1bf5f74ad6edce361d1bf1a29137ff374e8 8ab15139728a8efd3ebbb60beb16a958a6a93fa1
159609 pass c3038e718a19fc596f7b1baba0f83d5146dc7784 c530a75c1e6a472b0eb9558310b518f0dfcd8860 3d273dd05e51e5a1ffba3d98c7437ee84e8f8764 7ea428895af2840d85c524f0bd11a38aac308308 2d824791504f4119f04f95bafffec2e37d319c25 8ab15139728a8efd3ebbb60beb16a958a6a93fa1
159611 fail c3038e718a19fc596f7b1baba0f83d5146dc7784 c530a75c1e6a472b0eb9558310b518f0dfcd8860 3d273dd05e51e5a1ffba3d98c7437ee84e8f8764 7ea428895af2840d85c524f0bd11a38aac308308 4dc1815991420b809ce18dddfdf9c0af48944204 8ab15139728a8efd3ebbb60beb16a958a6a93fa1
159612 pass c3038e718a19fc596f7b1baba0f83d5146dc7784 c530a75c1e6a472b0eb9558310b518f0dfcd8860 3d273dd05e51e5a1ffba3d98c7437ee84e8f8764 7ea428895af2840d85c524f0bd11a38aac308308 2d824791504f4119f04f95bafffec2e37d319c25 8ab15139728a8efd3ebbb60beb16a958a6a93fa1
159614 fail c3038e718a19fc596f7b1baba0f83d5146dc7784 c530a75c1e6a472b0eb9558310b518f0dfcd8860 3d273dd05e51e5a1ffba3d98c7437ee84e8f8764 7ea428895af2840d85c524f0bd11a38aac308308 4dc1815991420b809ce18dddfdf9c0af48944204 8ab15139728a8efd3ebbb60beb16a958a6a93fa1
159616 pass c3038e718a19fc596f7b1baba0f83d5146dc7784 c530a75c1e6a472b0eb9558310b518f0dfcd8860 3d273dd05e51e5a1ffba3d98c7437ee84e8f8764 7ea428895af2840d85c524f0bd11a38aac308308 2d824791504f4119f04f95bafffec2e37d319c25 8ab15139728a8efd3ebbb60beb16a958a6a93fa1
159617 fail c3038e718a19fc596f7b1baba0f83d5146dc7784 c530a75c1e6a472b0eb9558310b518f0dfcd8860 3d273dd05e51e5a1ffba3d98c7437ee84e8f8764 7ea428895af2840d85c524f0bd11a38aac308308 4dc1815991420b809ce18dddfdf9c0af48944204 8ab15139728a8efd3ebbb60beb16a958a6a93fa1
Searching for interesting versions
Result found: flight 159335 (pass), for basis pass
For basis failure, parent search stopping at c3038e718a19fc596f7b1baba0f83d5146dc7784 c530a75c1e6a472b0eb9558310b518f0dfcd8860 3d273dd05e51e5a1ffba3d98c7437ee84e8f8764 7ea428895af2840d85c524f0bd11a38aac308308 2d824791504f4119f04f95bafffec2e37d319c25 8ab15139728a8efd3ebbb60beb16a958a6a93fa1, results HASH(0x55e3362f7750) HASH(0x55e336376e78) HASH(0x55e336379e08) For basis failure, parent search stopping at c3038e718a19fc596f7b1baba0f83d5146dc7784 c530a75c1e6a472b0eb9558310b518f0dfcd8860 3d273dd05\
e51e5a1ffba3d98c7437ee84e8f8764 7ea428895af2840d85c524f0bd11a38aac308308 6a1d72d3739e330caf728ea07d656d7bf568824b 8ab15139728a8efd3ebbb60beb16a958a6a93fa1, results HASH(0x55e3362ddb50) For basis failure, parent search stopping at c3038e718a19fc596f7b1baba0f83d5146dc7784 c530a75c1e6a472b0eb9558310b518f0dfcd8860 3d273dd05e51e5a1ffba3d98c7437ee84e8f8764 7ea428895af2840d85c524f0bd11a38aac308308 04085ec1ac05a362812e9b0c6b5a8713d7dc88ad 8ab15139728a8efd3ebbb60beb16a958a6a93fa1, results HASH(0x55e3362e\
6198) HASH(0x55e3362efb88) Result found: flight 159576 (fail), for basis failure (at ancestor ~76)
Repro found: flight 159603 (pass), for basis pass
Repro found: flight 159604 (fail), for basis failure
0 revisions at c3038e718a19fc596f7b1baba0f83d5146dc7784 c530a75c1e6a472b0eb9558310b518f0dfcd8860 3d273dd05e51e5a1ffba3d98c7437ee84e8f8764 7ea428895af2840d85c524f0bd11a38aac308308 2d824791504f4119f04f95bafffec2e37d319c25 8ab15139728a8efd3ebbb60beb16a958a6a93fa1
No revisions left to test, checking graph state.
Result found: flight 159609 (pass), for last pass
Result found: flight 159611 (fail), for first failure
Repro found: flight 159612 (pass), for last pass
Repro found: flight 159614 (fail), for first failure
Repro found: flight 159616 (pass), for last pass
Repro found: flight 159617 (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/159617/
commit 4dc1815991420b809ce18dddfdf9c0af48944204
Author: Jan Beulich <jbeulich@suse.com>
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@redhat.com/
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@citrix.com>
Signed-off-by: Jan Beulich <jbeulich@suse.com>
Reviewed-by: Roger Pau Monné <roger.pau@citrix.com>
Release-Acked-by: Ian Jackson <iwj@xenproject.org>
Revision graph left in /home/logs/results/bisect/xen-unstable/test-xtf-amd64-amd64-2.xtf--test-pv32pae-selftest.{dot,ps,png,html,svg}.
----------------------------------------
159617: tolerable all pass
flight 159617 xen-unstable real-bisect [real]
http://logs.test-lab.xenproject.org/osstest/logs/159617/
Failures :-/ but no regressions.
Tests which did not succeed,
including tests which could not be run:
test-xtf-amd64-amd64-2 19 xtf/test-pv32pae-selftest fail baseline untested
jobs:
test-xtf-amd64-amd64-2 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
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2021-02-24 7:47 [xen-unstable bisection] complete test-xtf-amd64-amd64-2 osstest service owner
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