ubuntu_kvm_unit_tests skey fails with multiple failures on B/F s390x LPAR

[Luke Nowakowski-Krijger]

ubuntu_kvm_unit_tests skey fails on bionic s390x with bionic/linux kernel 4.15.0-194.205 on s2lp3 and in cycle 2022.09.19.

This test fails on kernel02 with https://bugs.launchpad.net/ubuntu-kernel-tests/+bug/1991740, however this specific testcases passes here, thus the other tests run and now fail. This is due to new test cases being added.

17:49:51 DEBUG| Running 'kvm-ok'
17:49:51 DEBUG| [stdout] INFO: /dev/kvm exists
17:49:51 DEBUG| [stdout] KVM acceleration can be used
17:49:51 DEBUG| Running '/home/ubuntu/autotest/client/tmp/ubuntu_kvm_unit_tests/src/kvm-unit-tests/tests/skey'
17:49:51 DEBUG| [stdout] BUILD_HEAD=35a22051
17:49:51 DEBUG| [stdout] timeout -k 1s --foreground 90s /usr/bin/qemu-system-s390x -nodefaults -nographic -machine s390-ccw-virtio,accel=kvm -chardev stdio,id=con0 -device sclpconsole,chardev=con0 -kernel /tmp/tmp.YRdqWtc3Cs -smp 1 -device virtio-net-ccw # -initrd /tmp/tmp.l2T6hUggdb
17:49:51 DEBUG| [stderr] qemu-system-s390x: warning: nic virtio-net-ccw.0 has no peer
17:49:51 DEBUG| [stdout] PASS: skey: privileged: sske: Program interrupt: expected(2) == received(2)
17:49:51 DEBUG| [stdout] PASS: skey: privileged: skey did not change on exception
17:49:51 DEBUG| [stdout] PASS: skey: privileged: iske: Program interrupt: expected(2) == received(2)
17:49:51 DEBUG| [stdout] PASS: skey: invalid address: sske: Program interrupt: expected(5) == received(5)
17:49:51 DEBUG| [stdout] PASS: skey: invalid address: iske: Program interrupt: expected(5) == received(5)
17:49:51 DEBUG| [stdout] PASS: skey: invalid address: rrbe: Program interrupt: expected(5) == received(5)
17:49:51 DEBUG| [stdout] PASS: skey: set key test
17:49:51 DEBUG| [stdout] PASS: skey: multi block
17:49:51 DEBUG| [stdout] PASS: skey: chg bit test
17:49:51 DEBUG| [stdout] PASS: skey: TPROT: zero key: no protection
17:49:51 DEBUG| [stdout] PASS: skey: TPROT: matching key: no protection
17:49:51 DEBUG| [stdout] PASS: skey: TPROT: mismatching key: no fetch protection: store protection
17:49:51 DEBUG| [stdout] PASS: skey: TPROT: mismatching key: fetch protection: fetch & store protection
17:49:51 DEBUG| [stdout] PASS: skey: TPROT: mismatching key: fetch-protection override: disabled: fetch & store protection
17:49:51 DEBUG| [stdout] PASS: skey: TPROT: mismatching key: fetch-protection override: enabled: store protection
17:49:51 DEBUG| [stdout] PASS: skey: TPROT: mismatching key: fetch-protection override: invalid: fetch & store protection
17:49:51 DEBUG| [stdout] PASS: skey: TPROT: mismatching key: storage-protection override: no protection
17:49:51 DEBUG| [stdout] PASS: skey: STORE CPU ADDRESS: zero key: store occurred
17:49:51 DEBUG| [stdout] PASS: skey: STORE CPU ADDRESS: matching key: store occurred
17:49:51 DEBUG| [stdout] FAIL: skey: STORE CPU ADDRESS: mismatching key: Program interrupt: expected(4) == received(0)
17:49:51 DEBUG| [stdout] PASS: skey: STORE CPU ADDRESS: mismatching key: TEID: valid protection code
17:49:51 DEBUG| [stdout] FAIL: skey: STORE CPU ADDRESS: mismatching key: no store occurred
17:49:51 DEBUG| [stdout] FAIL: skey: STORE CPU ADDRESS: storage-protection override, invalid key: Program interrupt: expected(4) == received(0)
17:49:51 DEBUG| [stdout] PASS: skey: STORE CPU ADDRESS: storage-protection override, invalid key: TEID: valid protection code
17:49:51 DEBUG| [stdout] FAIL: skey: STORE CPU ADDRESS: storage-protection override, invalid key: no store occurred
17:49:51 DEBUG| [stdout] PASS: skey: STORE CPU ADDRESS: storage-protection override, override key: override occurred
17:49:51 DEBUG| [stdout] FAIL: skey: STORE CPU ADDRESS: storage-protection override disabled, override key: Program interrupt: expected(4) == received(0)
17:49:51 DEBUG| [stdout] PASS: skey: STORE CPU ADDRESS: storage-protection override disabled, override key: TEID: valid protection code
17:49:51 DEBUG| [stdout] FAIL: skey: STORE CPU ADDRESS: storage-protection override disabled, override key: no store occurred
17:49:51 DEBUG| [stdout] PASS: skey: DIAG 308: no exception on fetch, response: invalid IPIB
17:49:51 DEBUG| [stdout] PASS: skey: CHANNEL SUBSYSTEM CALL: zero key: Performed store-channel-subsystem-characteristics
17:49:51 DEBUG| [stdout] PASS: skey: CHANNEL SUBSYSTEM CALL: matching key: Performed store-channel-subsystem-characteristics
17:49:51 DEBUG| [stdout] FAIL: skey: CHANNEL SUBSYSTEM CALL: mismatching key: no fetch protection: Program interrupt: expected(4) == received(0)
17:49:51 DEBUG| [stdout] PASS: skey: CHANNEL SUBSYSTEM CALL: mismatching key: no fetch protection: TEID: valid protection code
17:49:51 DEBUG| [stdout] FAIL: skey: CHANNEL SUBSYSTEM CALL: mismatching key: fetch protection: Program interrupt: expected(4) == received(0)
17:49:51 DEBUG| [stdout] PASS: skey: CHANNEL SUBSYSTEM CALL: mismatching key: fetch protection: TEID: valid protection code
17:49:51 DEBUG| [stdout] FAIL: skey: CHANNEL SUBSYSTEM CALL: mismatching key: storage-protection override, invalid key: Program interrupt: expected(4) == received(0)
17:49:51 DEBUG| [stdout] PASS: skey: CHANNEL SUBSYSTEM CALL: mismatching key: storage-protection override, invalid key: TEID: valid protection code
17:49:51 DEBUG| [stdout] PASS: skey: CHANNEL SUBSYSTEM CALL: mismatching key: storage-protection override, override key: Performed store-channel-subsystem-characteristics
17:49:51 DEBUG| [stdout] FAIL: skey: CHANNEL SUBSYSTEM CALL: mismatching key: storage-protection override disabled, override key: Program interrupt: expected(4) == received(0)
17:49:51 DEBUG| [stdout] PASS: skey: CHANNEL SUBSYSTEM CALL: mismatching key: storage-protection override disabled, override key: TEID: valid protection code
17:49:51 DEBUG| [stdout] PASS: skey: SET PREFIX: zero key: set prefix
17:49:51 DEBUG| [stdout] PASS: skey: SET PREFIX: matching key: set prefix
17:49:51 DEBUG| [stdout] PASS: skey: SET PREFIX: mismatching key: no fetch protection: set prefix
17:49:51 DEBUG| [stdout] FAIL: skey: SET PREFIX: mismatching key: fetch protection: Program interrupt: expected(4) == received(0)
17:49:51 DEBUG| [stdout] PASS: skey: SET PREFIX: mismatching key: fetch protection: TEID: valid protection code
17:49:51 DEBUG| [stdout] FAIL: skey: SET PREFIX: mismatching key: fetch protection: did not set prefix
17:49:51 DEBUG| [stdout] FAIL: skey: SET PREFIX: mismatching key: remapped page, fetch protection: Program interrupt: expected(4) == received(0)
17:49:51 DEBUG| [stdout] PASS: skey: SET PREFIX: mismatching key: remapped page, fetch protection: TEID: valid protection code
17:49:51 DEBUG| [stdout] FAIL: skey: SET PREFIX: mismatching key: remapped page, fetch protection: did not set prefix
17:49:51 DEBUG| [stdout] PASS: skey: SET PREFIX: mismatching key: fetch protection override applies: set prefix
17:49:51 DEBUG| [stdout] FAIL: skey: SET PREFIX: mismatching key: fetch protection override does not apply: Program interrupt: expected(4) == received(0)
17:49:51 DEBUG| [stdout] PASS: skey: SET PREFIX: mismatching key: fetch protection override does not apply: TEID: valid protection code
17:49:51 DEBUG| [stdout] FAIL: skey: SET PREFIX: mismatching key: fetch protection override does not apply: did not set prefix
17:49:51 DEBUG| [stdout] INFO: skey: MSCH: Found subchannel 00010000
17:49:51 DEBUG| [stdout] INFO: skey: MSCH: Tested subchannels: 1, I/O subchannels: 1, I/O devices: 1
17:49:51 DEBUG| [stdout] PASS: skey: MSCH: zero key: fetched from SCHIB
17:49:51 DEBUG| [stdout] PASS: skey: MSCH: matching key: fetched from SCHIB
17:49:51 DEBUG| [stdout] PASS: skey: MSCH: mismatching key: no fetch protection: fetched from SCHIB
17:49:51 DEBUG| [stdout] FAIL: skey: MSCH: mismatching key: fetch protection: Program interrupt: expected(4) == received(0)
17:49:51 DEBUG| [stdout] PASS: skey: MSCH: mismatching key: fetch protection: TEID: valid protection code
17:49:51 DEBUG| [stdout] FAIL: skey: MSCH: mismatching key: fetch protection: did not modify subchannel
17:49:51 DEBUG| [stdout] FAIL: skey: MSCH: mismatching key: remapped page, fetch protection: Program interrupt: expected(4) == received(0)
17:49:51 DEBUG| [stdout] PASS: skey: MSCH: mismatching key: remapped page, fetch protection: TEID: valid protection code
17:49:51 DEBUG| [stdout] FAIL: skey: MSCH: mismatching key: remapped page, fetch protection: did not modify subchannel
17:49:51 DEBUG| [stdout] PASS: skey: MSCH: mismatching key: fetch-protection override applies: fetched from SCHIB
17:49:51 DEBUG| [stdout] FAIL: skey: MSCH: mismatching key: fetch-protection override does not apply: Program interrupt: expected(4) == received(0)
17:49:51 DEBUG| [stdout] PASS: skey: MSCH: mismatching key: fetch-protection override does not apply: TEID: valid protection code
17:49:51 DEBUG| [stdout] FAIL: skey: MSCH: mismatching key: fetch-protection override does not apply: did not modify subchannel
17:49:51 DEBUG| [stdout] SUMMARY: 67 tests, 22 unexpected failures
17:49:51 DEBUG| [stdout]
17:49:51 DEBUG| [stdout] EXIT: STATUS=3
17:49:51 DEBUG| [stdout] FAIL skey (67 tests, 22 unexpected failures)
17:49:51 ERROR| Exception escaping from test:

[Po-Hsu Lin (cypressyew)]

Note that these 2 Bionic zVM and LPAR were tested with the same updated kvm-unit-tests. It's just that the one on LPAR didn't experience an unexpected interrupt so it can move on like Luke mentioned here.

[Po-Hsu Lin (cypressyew)]

This test failed with 10 sub-cases on Focal LPAR s2lp4

 PASS: skey: privileged: sske: Program interrupt: expected(2) == received(2)
 PASS: skey: privileged: skey did not change on exception
 PASS: skey: privileged: iske: Program interrupt: expected(2) == received(2)
 PASS: skey: invalid address: sske: Program interrupt: expected(5) == received(5)
 PASS: skey: invalid address: iske: Program interrupt: expected(5) == received(5)
 PASS: skey: invalid address: rrbe: Program interrupt: expected(5) == received(5)
 PASS: skey: set key test
 PASS: skey: multi block
 PASS: skey: chg bit test
 PASS: skey: TPROT: zero key: no protection
 PASS: skey: TPROT: matching key: no protection
 PASS: skey: TPROT: mismatching key: no fetch protection: store protection
 PASS: skey: TPROT: mismatching key: fetch protection: fetch & store protection
 PASS: skey: TPROT: mismatching key: fetch-protection override: disabled: fetch & store protection
 PASS: skey: TPROT: mismatching key: fetch-protection override: enabled: store protection
 PASS: skey: TPROT: mismatching key: fetch-protection override: invalid: fetch & store protection
 PASS: skey: TPROT: mismatching key: storage-protection override: no protection
 PASS: skey: STORE CPU ADDRESS: zero key: store occurred
 PASS: skey: STORE CPU ADDRESS: matching key: store occurred
 PASS: skey: STORE CPU ADDRESS: mismatching key: Program interrupt: expected(4) == received(4)
 PASS: skey: STORE CPU ADDRESS: mismatching key: TEID: valid access code
 PASS: skey: STORE CPU ADDRESS: mismatching key: TEID: valid protection code
 PASS: skey: STORE CPU ADDRESS: mismatching key: no store occurred
 PASS: skey: STORE CPU ADDRESS: storage-protection override, invalid key: Program interrupt: expected(4) == received(4)
 PASS: skey: STORE CPU ADDRESS: storage-protection override, invalid key: TEID: valid access code
 PASS: skey: STORE CPU ADDRESS: storage-protection override, invalid key: TEID: valid protection code
 PASS: skey: STORE CPU ADDRESS: storage-protection override, invalid key: no store occurred
 PASS: skey: STORE CPU ADDRESS: storage-protection override, override key: override occurred
 PASS: skey: STORE CPU ADDRESS: storage-protection override disabled, override key: Program interrupt: expected(4) == received(4)
 PASS: skey: STORE CPU ADDRESS: storage-protection override disabled, override key: TEID: valid access code
 PASS: skey: STORE CPU ADDRESS: storage-protection override disabled, override key: TEID: valid protection code
 PASS: skey: STORE CPU ADDRESS: storage-protection override disabled, override key: no store occurred
 PASS: skey: DIAG 308: no exception on fetch, response: invalid IPIB
 PASS: skey: CHANNEL SUBSYSTEM CALL: zero key: Performed store-channel-subsystem-characteristics
 PASS: skey: CHANNEL SUBSYSTEM CALL: matching key: Performed store-channel-subsystem-characteristics
 FAIL: skey: CHANNEL SUBSYSTEM CALL: mismatching key: no fetch protection: Program interrupt: expected(4) == received(0)
 PASS: skey: CHANNEL SUBSYSTEM CALL: mismatching key: no fetch protection: TEID: valid protection code
 FAIL: skey: CHANNEL SUBSYSTEM CALL: mismatching key: fetch protection: Program interrupt: expected(4) == received(0)...