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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [xen-4.14-testing bisection] complete test-xtf-amd64-amd64-2
branch xen-4.14-testing xenbranch xen-4.14-testing job test-xtf-amd64-amd64-2 testid xtf/test-hvm64-xsa-221 Tree: linux git://xenbits.xen.org/linux-pvops.git Tree: linuxfirmware git://xenbits.xen.org/osstest/linux-firmware.git Tree: ovmf git://xenbits.xen.org/osstest/ovmf.git Tree: qemu git://xenbits.xen.org/qemu-xen-traditional.git Tree: qemuu git://xenbits.xen.org/qemu-xen.git Tree: seabios git://xenbits.xen.org/osstest/seabios.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: b8c2efbe7b3e8fa5f0b0a3679afccd1204949070 Bug not present: f5469067ee0260673ca1e554ff8888512a55ccfc Last fail repro: http://logs.test-lab.xenproject.org/osstest/logs/154886/ commit b8c2efbe7b3e8fa5f0b0a3679afccd1204949070 Author: Jan Beulich <jbeulich@xxxxxxxx> Date: Tue Sep 22 16:13:34 2020 +0200 evtchn/x86: enforce correct upper limit for 32-bit guests The recording of d->max_evtchns in evtchn_2l_init(), in particular with the limited set of callers of the function, is insufficient. Neither for PV nor for HVM guests the bitness is known at domain_create() time, yet the upper bound in 2-level mode depends upon guest bitness. Recording too high a limit "allows" x86 32-bit domains to open not properly usable event channels, management of which (inside Xen) would then result in corruption of the shared info and vCPU info structures. Keep the upper limit dynamic for the 2-level case, introducing a helper function to retrieve the effective limit. This helper is now supposed to be private to the event channel code. The used in do_poll() and domain_dump_evtchn_info() weren't consistent with port uses elsewhere and hence get switched to port_is_valid(). Furthermore FIFO mode's setup_ports() gets adjusted to loop only up to the prior ABI limit, rather than all the way up to the new one. Finally a word on the change to do_poll(): Accessing ->max_evtchns without holding a suitable lock was never safe, as it as well as ->evtchn_port_ops may change behind do_poll()'s back. Using port_is_valid() instead widens some the window for potential abuse, until we've dealt with the race altogether (see XSA-343). This is XSA-342. Reported-by: Julien Grall <jgrall@xxxxxxxxxx> Fixes: 48974e6ce52e ("evtchn: use a per-domain variable for the max number of event channels") Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx> Reviewed-by: Stefano Stabellini <sstabellini@xxxxxxxxxx> Reviewed-by: Julien Grall <jgrall@xxxxxxxxxx> For bisection revision-tuple graph see: http://logs.test-lab.xenproject.org/osstest/results/bisect/xen-4.14-testing/test-xtf-amd64-amd64-2.xtf--test-hvm64-xsa-221.html Revision IDs in each graph node refer, respectively, to the Trees above. ---------------------------------------- Running cs-bisection-step --graph-out=/home/logs/results/bisect/xen-4.14-testing/test-xtf-amd64-amd64-2.xtf--test-hvm64-xsa-221 --summary-out=tmp/154886.bisection-summary --basis-template=154350 --blessings=real,real-bisect xen-4.14-testing test-xtf-amd64-amd64-2 xtf/test-hvm64-xsa-221 Searching for failure / basis pass: 154641 fail [host=chardonnay0] / 154350 [host=albana1] 154148 [host=godello0] 154116 [host=huxelrebe0] 152545 [host=huxelrebe0] 152537 [host=fiano1] 152531 [host=albana0] 152153 [host=albana1] 152124 [host=huxelrebe1] 152081 [host=fiano1] 152061 [host=godello0] 152043 [host=godello1] 151922 [host=elbling0] 151899 [host=fiano0] 151892 ok. Failure / basis pass flights: 154641 / 151892 (tree with no url: minios) Tree: linux git://xenbits.xen.org/linux-pvops.git Tree: linuxfirmware git://xenbits.xen.org/osstest/linux-firmware.git Tree: ovmf git://xenbits.xen.org/osstest/ovmf.git Tree: qemu git://xenbits.xen.org/qemu-xen-traditional.git Tree: qemuu git://xenbits.xen.org/qemu-xen.git Tree: seabios git://xenbits.xen.org/osstest/seabios.git Tree: xen git://xenbits.xen.org/xen.git Tree: xtf git://xenbits.xen.org/xtf.git Latest c3038e718a19fc596f7b1baba0f83d5146dc7784 c530a75c1e6a472b0eb9558310b518f0dfcd8860 fb97626fe04747ec89599dce0992def9a36e2f6b 3c659044118e34603161457db9934a34f816d78b ea6d3cd1ed79d824e605a70c3626bc437c386260 155821a1990b6de78dde5f98fa5ab90e802021e0 f37a1cf023b277d0d49323bf322ce3ff0c92262d 17d372b763cb0b2e2e6b5a637c11f3997d2533fa Basis pass c3038e718a19fc596f7b1baba0f83d5146dc7784 c530a75c1e6a472b0eb9558310b518f0dfcd8860 d9a4084544134eea50f62e88d79c466ae91f0455 3c659044118e34603161457db9934a34f816d78b ea6d3cd1ed79d824e605a70c3626bc437c386260 88ab0c15525ced2eefe39220742efe4769089ad8 02d69864b51a4302a148c28d6d391238a6778b4b f645a19115e666ce6401ca63b7d7388571463b55 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/osstest/ovmf.git#d9a4084544134eea50f62e88d79c466ae91f0455-fb97626fe04747ec89599dce0992def9a36e2f6b git://xenbits.xen.org/qemu-xen-traditional.git#3c659044118e34603161457db99\ 34a34f816d78b-3c659044118e34603161457db9934a34f816d78b git://xenbits.xen.org/qemu-xen.git#ea6d3cd1ed79d824e605a70c3626bc437c386260-ea6d3cd1ed79d824e605a70c3626bc437c386260 git://xenbits.xen.org/osstest/seabios.git#88ab0c15525ced2eefe39220742efe4769089ad8-155821a1990b6de78dde5f98fa5ab90e802021e0 git://xenbits.xen.org/xen.git#02d69864b51a4302a148c28d6d391238a6778b4b-f37a1cf023b277d0d49323bf322ce3ff0c92262d git://xenbits.xen.org/xtf.git#f645a19115e666ce6401ca63b7d7388571463b55-17d372b763cb0b2e2e6b5\ a637c11f3997d2533fa Loaded 10498 nodes in revision graph Searching for test results: 151892 pass c3038e718a19fc596f7b1baba0f83d5146dc7784 c530a75c1e6a472b0eb9558310b518f0dfcd8860 d9a4084544134eea50f62e88d79c466ae91f0455 3c659044118e34603161457db9934a34f816d78b ea6d3cd1ed79d824e605a70c3626bc437c386260 88ab0c15525ced2eefe39220742efe4769089ad8 02d69864b51a4302a148c28d6d391238a6778b4b f645a19115e666ce6401ca63b7d7388571463b55 151899 [host=fiano0] 151922 [host=elbling0] 152061 [host=godello0] 152043 [host=godello1] 152081 [host=fiano1] 152124 [host=huxelrebe1] 152153 [host=albana1] 152531 [host=albana0] 152537 [host=fiano1] 152545 [host=huxelrebe0] 154116 [host=huxelrebe0] 154148 [host=godello0] 154350 [host=albana1] 154617 [host=chardonnay1] 154641 fail c3038e718a19fc596f7b1baba0f83d5146dc7784 c530a75c1e6a472b0eb9558310b518f0dfcd8860 fb97626fe04747ec89599dce0992def9a36e2f6b 3c659044118e34603161457db9934a34f816d78b ea6d3cd1ed79d824e605a70c3626bc437c386260 155821a1990b6de78dde5f98fa5ab90e802021e0 f37a1cf023b277d0d49323bf322ce3ff0c92262d 17d372b763cb0b2e2e6b5a637c11f3997d2533fa 154777 pass c3038e718a19fc596f7b1baba0f83d5146dc7784 c530a75c1e6a472b0eb9558310b518f0dfcd8860 d9a4084544134eea50f62e88d79c466ae91f0455 3c659044118e34603161457db9934a34f816d78b ea6d3cd1ed79d824e605a70c3626bc437c386260 88ab0c15525ced2eefe39220742efe4769089ad8 02d69864b51a4302a148c28d6d391238a6778b4b f645a19115e666ce6401ca63b7d7388571463b55 154815 fail c3038e718a19fc596f7b1baba0f83d5146dc7784 c530a75c1e6a472b0eb9558310b518f0dfcd8860 fb97626fe04747ec89599dce0992def9a36e2f6b 3c659044118e34603161457db9934a34f816d78b ea6d3cd1ed79d824e605a70c3626bc437c386260 155821a1990b6de78dde5f98fa5ab90e802021e0 f37a1cf023b277d0d49323bf322ce3ff0c92262d 17d372b763cb0b2e2e6b5a637c11f3997d2533fa 154821 pass c3038e718a19fc596f7b1baba0f83d5146dc7784 c530a75c1e6a472b0eb9558310b518f0dfcd8860 9f2d50f145191733e502667327c2129034a93099 3c659044118e34603161457db9934a34f816d78b ea6d3cd1ed79d824e605a70c3626bc437c386260 155821a1990b6de78dde5f98fa5ab90e802021e0 c3a0fc22af90ef28e68b116c6a49d9cec57f71cf 17d372b763cb0b2e2e6b5a637c11f3997d2533fa 154831 pass c3038e718a19fc596f7b1baba0f83d5146dc7784 c530a75c1e6a472b0eb9558310b518f0dfcd8860 a048af3c9073e4b8108e6cf920bbb35574059639 3c659044118e34603161457db9934a34f816d78b ea6d3cd1ed79d824e605a70c3626bc437c386260 155821a1990b6de78dde5f98fa5ab90e802021e0 c3a0fc22af90ef28e68b116c6a49d9cec57f71cf 17d372b763cb0b2e2e6b5a637c11f3997d2533fa 154841 pass c3038e718a19fc596f7b1baba0f83d5146dc7784 c530a75c1e6a472b0eb9558310b518f0dfcd8860 1b461403ee723dab01d5828714cca0b9396a6b3c 3c659044118e34603161457db9934a34f816d78b ea6d3cd1ed79d824e605a70c3626bc437c386260 155821a1990b6de78dde5f98fa5ab90e802021e0 483b43c4573329a28f1c9e18f90694e5be35ddb9 17d372b763cb0b2e2e6b5a637c11f3997d2533fa 154846 pass c3038e718a19fc596f7b1baba0f83d5146dc7784 c530a75c1e6a472b0eb9558310b518f0dfcd8860 440121b54280ef1d7196bec1bc45eb5d5625c1cc 3c659044118e34603161457db9934a34f816d78b ea6d3cd1ed79d824e605a70c3626bc437c386260 155821a1990b6de78dde5f98fa5ab90e802021e0 28855ebcdbfa437e60bc16c761405476fe16bc39 17d372b763cb0b2e2e6b5a637c11f3997d2533fa 154851 pass c3038e718a19fc596f7b1baba0f83d5146dc7784 c530a75c1e6a472b0eb9558310b518f0dfcd8860 fb97626fe04747ec89599dce0992def9a36e2f6b 3c659044118e34603161457db9934a34f816d78b ea6d3cd1ed79d824e605a70c3626bc437c386260 155821a1990b6de78dde5f98fa5ab90e802021e0 0bc4177e6b0d7a98464913af95d3bfe4b59b7a2c 17d372b763cb0b2e2e6b5a637c11f3997d2533fa 154857 fail c3038e718a19fc596f7b1baba0f83d5146dc7784 c530a75c1e6a472b0eb9558310b518f0dfcd8860 fb97626fe04747ec89599dce0992def9a36e2f6b 3c659044118e34603161457db9934a34f816d78b ea6d3cd1ed79d824e605a70c3626bc437c386260 155821a1990b6de78dde5f98fa5ab90e802021e0 2ee270e126458471b178ca1e5d7d8d0afc48be39 17d372b763cb0b2e2e6b5a637c11f3997d2533fa 154860 pass c3038e718a19fc596f7b1baba0f83d5146dc7784 c530a75c1e6a472b0eb9558310b518f0dfcd8860 fb97626fe04747ec89599dce0992def9a36e2f6b 3c659044118e34603161457db9934a34f816d78b ea6d3cd1ed79d824e605a70c3626bc437c386260 155821a1990b6de78dde5f98fa5ab90e802021e0 f5469067ee0260673ca1e554ff8888512a55ccfc 17d372b763cb0b2e2e6b5a637c11f3997d2533fa 154868 fail c3038e718a19fc596f7b1baba0f83d5146dc7784 c530a75c1e6a472b0eb9558310b518f0dfcd8860 fb97626fe04747ec89599dce0992def9a36e2f6b 3c659044118e34603161457db9934a34f816d78b ea6d3cd1ed79d824e605a70c3626bc437c386260 155821a1990b6de78dde5f98fa5ab90e802021e0 b8c2efbe7b3e8fa5f0b0a3679afccd1204949070 17d372b763cb0b2e2e6b5a637c11f3997d2533fa 154872 pass c3038e718a19fc596f7b1baba0f83d5146dc7784 c530a75c1e6a472b0eb9558310b518f0dfcd8860 fb97626fe04747ec89599dce0992def9a36e2f6b 3c659044118e34603161457db9934a34f816d78b ea6d3cd1ed79d824e605a70c3626bc437c386260 155821a1990b6de78dde5f98fa5ab90e802021e0 f5469067ee0260673ca1e554ff8888512a55ccfc 17d372b763cb0b2e2e6b5a637c11f3997d2533fa 154877 fail c3038e718a19fc596f7b1baba0f83d5146dc7784 c530a75c1e6a472b0eb9558310b518f0dfcd8860 fb97626fe04747ec89599dce0992def9a36e2f6b 3c659044118e34603161457db9934a34f816d78b ea6d3cd1ed79d824e605a70c3626bc437c386260 155821a1990b6de78dde5f98fa5ab90e802021e0 b8c2efbe7b3e8fa5f0b0a3679afccd1204949070 17d372b763cb0b2e2e6b5a637c11f3997d2533fa 154882 pass c3038e718a19fc596f7b1baba0f83d5146dc7784 c530a75c1e6a472b0eb9558310b518f0dfcd8860 fb97626fe04747ec89599dce0992def9a36e2f6b 3c659044118e34603161457db9934a34f816d78b ea6d3cd1ed79d824e605a70c3626bc437c386260 155821a1990b6de78dde5f98fa5ab90e802021e0 f5469067ee0260673ca1e554ff8888512a55ccfc 17d372b763cb0b2e2e6b5a637c11f3997d2533fa 154886 fail c3038e718a19fc596f7b1baba0f83d5146dc7784 c530a75c1e6a472b0eb9558310b518f0dfcd8860 fb97626fe04747ec89599dce0992def9a36e2f6b 3c659044118e34603161457db9934a34f816d78b ea6d3cd1ed79d824e605a70c3626bc437c386260 155821a1990b6de78dde5f98fa5ab90e802021e0 b8c2efbe7b3e8fa5f0b0a3679afccd1204949070 17d372b763cb0b2e2e6b5a637c11f3997d2533fa Searching for interesting versions Result found: flight 151892 (pass), for basis pass For basis failure, parent search stopping at c3038e718a19fc596f7b1baba0f83d5146dc7784 c530a75c1e6a472b0eb9558310b518f0dfcd8860 fb97626fe04747ec89599dce0992def9a36e2f6b 3c659044118e34603161457db9934a34f816d78b ea6d3cd1ed79d824e605a70c3626bc437c386260 155821a1990b6de78dde5f98fa5ab90e802021e0 f5469067ee0260673ca1e554ff8888512a55ccfc 17d372b763cb0b2e2e6b5a637c11f3997d2533fa, results HASH(0x556f98062998) HASH(0x556f9802fcc8) HASH(0x556f98017dd0) For basis failure, parent search stopping at c3038e718\ a19fc596f7b1baba0f83d5146dc7784 c530a75c1e6a472b0eb9558310b518f0dfcd8860 fb97626fe04747ec89599dce0992def9a36e2f6b 3c659044118e34603161457db9934a34f816d78b ea6d3cd1ed79d824e605a70c3626bc437c386260 155821a1990b6de78dde5f98fa5ab90e802021e0 0bc4177e6b0d7a98464913af95d3bfe4b59b7a2c 17d372b763cb0b2e2e6b5a637c11f3997d2533fa, results HASH(0x556f98053110) For basis failure, parent search stopping at c3038e718a19fc596f7b1baba0f83d5146dc7784 c530a75c1e6a472b0eb9558310b518f0dfcd8860 440121b54280ef1d7196bec1\ bc45eb5d5625c1cc 3c659044118e34603161457db9934a34f816d78b ea6d3cd1ed79d824e605a70c3626bc437c386260 155821a1990b6de78dde5f98fa5ab90e802021e0 28855ebcdbfa437e60bc16c761405476fe16bc39 17d372b763cb0b2e2e6b5a637c11f3997d2533fa, results HASH(0x556f98058828) For basis failure, parent search stopping at c3038e718a19fc596f7b1baba0f83d5146dc7784 c530a75c1e6a472b0eb9558310b518f0dfcd8860 1b461403ee723dab01d5828714cca0b9396a6b3c 3c659044118e34603161457db9934a34f816d78b ea6d3cd1ed79d824e605a70c3626bc437c38626\ 0 155821a1990b6de78dde5f98fa5ab90e802021e0 483b43c4573329a28f1c9e18f90694e5be35ddb9 17d372b763cb0b2e2e6b5a637c11f3997d2533fa, results HASH(0x556f98054818) For basis failure, parent search stopping at c3038e718a19fc596f7b1baba0f83d5146dc7784 c530a75c1e6a472b0eb9558310b518f0dfcd8860 a048af3c9073e4b8108e6cf920bbb35574059639 3c659044118e34603161457db9934a34f816d78b ea6d3cd1ed79d824e605a70c3626bc437c386260 155821a1990b6de78dde5f98fa5ab90e802021e0 c3a0fc22af90ef28e68b116c6a49d9cec57f71cf 17d372b763cb0\ b2e2e6b5a637c11f3997d2533fa, results HASH(0x556f9801aa00) For basis failure, parent search stopping at c3038e718a19fc596f7b1baba0f83d5146dc7784 c530a75c1e6a472b0eb9558310b518f0dfcd8860 9f2d50f145191733e502667327c2129034a93099 3c659044118e34603161457db9934a34f816d78b ea6d3cd1ed79d824e605a70c3626bc437c386260 155821a1990b6de78dde5f98fa5ab90e802021e0 c3a0fc22af90ef28e68b116c6a49d9cec57f71cf 17d372b763cb0b2e2e6b5a637c11f3997d2533fa, results HASH(0x556f9802f0a0) For basis failure, parent search stoppi\ ng at c3038e718a19fc596f7b1baba0f83d5146dc7784 c530a75c1e6a472b0eb9558310b518f0dfcd8860 d9a4084544134eea50f62e88d79c466ae91f0455 3c659044118e34603161457db9934a34f816d78b ea6d3cd1ed79d824e605a70c3626bc437c386260 88ab0c15525ced2eefe39220742efe4769089ad8 02d69864b51a4302a148c28d6d391238a6778b4b f645a19115e666ce6401ca63b7d7388571463b55, results HASH(0x556f980339d8) HASH(0x556f98019dd8) Result found: flight 154641 (fail), for basis failure (at ancestor ~5143) Repro found: flight 154777 (pass), for basis pass Repro found: flight 154815 (fail), for basis failure 0 revisions at c3038e718a19fc596f7b1baba0f83d5146dc7784 c530a75c1e6a472b0eb9558310b518f0dfcd8860 fb97626fe04747ec89599dce0992def9a36e2f6b 3c659044118e34603161457db9934a34f816d78b ea6d3cd1ed79d824e605a70c3626bc437c386260 155821a1990b6de78dde5f98fa5ab90e802021e0 f5469067ee0260673ca1e554ff8888512a55ccfc 17d372b763cb0b2e2e6b5a637c11f3997d2533fa No revisions left to test, checking graph state. Result found: flight 154860 (pass), for last pass Result found: flight 154868 (fail), for first failure Repro found: flight 154872 (pass), for last pass Repro found: flight 154877 (fail), for first failure Repro found: flight 154882 (pass), for last pass Repro found: flight 154886 (fail), for first failure *** Found and reproduced problem changeset *** Bug is in tree: xen git://xenbits.xen.org/xen.git Bug introduced: b8c2efbe7b3e8fa5f0b0a3679afccd1204949070 Bug not present: f5469067ee0260673ca1e554ff8888512a55ccfc Last fail repro: http://logs.test-lab.xenproject.org/osstest/logs/154886/ commit b8c2efbe7b3e8fa5f0b0a3679afccd1204949070 Author: Jan Beulich <jbeulich@xxxxxxxx> Date: Tue Sep 22 16:13:34 2020 +0200 evtchn/x86: enforce correct upper limit for 32-bit guests The recording of d->max_evtchns in evtchn_2l_init(), in particular with the limited set of callers of the function, is insufficient. Neither for PV nor for HVM guests the bitness is known at domain_create() time, yet the upper bound in 2-level mode depends upon guest bitness. Recording too high a limit "allows" x86 32-bit domains to open not properly usable event channels, management of which (inside Xen) would then result in corruption of the shared info and vCPU info structures. Keep the upper limit dynamic for the 2-level case, introducing a helper function to retrieve the effective limit. This helper is now supposed to be private to the event channel code. The used in do_poll() and domain_dump_evtchn_info() weren't consistent with port uses elsewhere and hence get switched to port_is_valid(). Furthermore FIFO mode's setup_ports() gets adjusted to loop only up to the prior ABI limit, rather than all the way up to the new one. Finally a word on the change to do_poll(): Accessing ->max_evtchns without holding a suitable lock was never safe, as it as well as ->evtchn_port_ops may change behind do_poll()'s back. Using port_is_valid() instead widens some the window for potential abuse, until we've dealt with the race altogether (see XSA-343). This is XSA-342. Reported-by: Julien Grall <jgrall@xxxxxxxxxx> Fixes: 48974e6ce52e ("evtchn: use a per-domain variable for the max number of event channels") Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx> Reviewed-by: Stefano Stabellini <sstabellini@xxxxxxxxxx> Reviewed-by: Julien Grall <jgrall@xxxxxxxxxx> pnmtopng: 121 colors found Revision graph left in /home/logs/results/bisect/xen-4.14-testing/test-xtf-amd64-amd64-2.xtf--test-hvm64-xsa-221.{dot,ps,png,html,svg}. ---------------------------------------- 154886: tolerable all pass flight 154886 xen-4.14-testing real-bisect [real] http://logs.test-lab.xenproject.org/osstest/logs/154886/ Failures :-/ but no regressions. Tests which did not succeed, including tests which could not be run: test-xtf-amd64-amd64-2 68 xtf/test-hvm64-xsa-221 fail baseline untested test-xtf-amd64-amd64-2 106 xtf/test-pv64-xsa-221 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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