** Description changed: + [Impact] + + * Certain Guest features (SPRS) of power8 isa are not working through + a migration. + + * This is part of the ongoing LTS HW exploitation and a fixup to some + verification tests at the same time. + + [Test Case] + + * 1. deploy xenial + HWE kernel on a ppc64el box + 2. sudo apt-get install qemu-kvm -y + 3. git clone --depth=1 https://git.kernel.org/pub/scm/virt/kvm/kvm-unit-tests.git + 4. cd kvm-unit-tests + 5. ./configure --endian=little; make + 6. sudo ppc64_cpu --smt=off + 7. sudo ./run_tests -v + + [Regression Potential] + + * The changes are ppc only and provided by IBM so the potential risk is + retained to the owner of the Area. + Further if these registers are not used they do nothing, so in most + cases it will be a nop. + OTOH the changes are rather huge (in terms of LOC) so there is some + risk left. + + [Other Info] + + * n/a + + --- + The sprs test has failed on ppc64le This issue can be spotted on Zesty and Xenial. There is no history for this test on Artful $ sudo /bin/bash -c "MIGRATION=yes TESTNAME=sprs TIMEOUT=90s ACCEL= ./powerpc/run powerpc/sprs.elf -smp 1 -append '-w'" run_migration timeout -k 1s --foreground 90s /usr/bin/qemu-system-ppc64 -nodefaults -machine pseries,accel=kvm -bios powerpc/boot_rom.bin -display none -serial stdio -kernel powerpc/sprs.elf -smp 1 -append -w # -initrd /tmp/tmp.RUTL6E2JSi Settings SPRs to 0xcafefacec0debabe... Now migrate the VM, then press a key or send NMI... Checking SPRs... PASS: SPR 3: 0x0000000000debabe <==> 0x0000000000debabe PASS: SPR 13: 0xcafefacec0debabe <==> 0xcafefacec0debabe PASS: SPR 17: 0x0000000000debabe <==> 0x0000000000debabe PASS: SPR 18: 0x00000000c0debabe <==> 0x00000000c0debabe PASS: SPR 19: 0xcafefacec0debabe <==> 0xcafefacec0debabe PASS: SPR 29: 0xcafefacec0debabe <==> 0xcafefacec0debabe FAIL: SPR 61: 0x4054504440541014 <==> 000000000000000000 PASS: SPR 153: 0x0a00000000000084 <==> 0x0a00000000000084 PASS: SPR 157: 0xcfffffcfc0cfffff <==> 0xcfffffcfc0cfffff FAIL: SPR 159: 0x00000000c0debabe <==> 000000000000000000 PASS: SPR 256: 0x00000000c0debabe <==> 0x00000000c0debabe PASS: SPR 259: 0xcafefacec0debabe <==> 0xcafefacec0debabe PASS: SPR 274: 0xcafefacec0debabe <==> 0xcafefacec0debabe PASS: SPR 275: 0xcafefacec0debabe <==> 0xcafefacec0debabe PASS: SPR 769: 0xcafefacec0debabe <==> 0xcafefacec0debabe PASS: SPR 770: 0xcafefacec006babe <==> 0xcafefacec006babe PASS: SPR 771: 0x00000000c0debabe <==> 0x00000000c0debabe PASS: SPR 772: 0x00000000c0debabe <==> 0x00000000c0debabe PASS: SPR 773: 0x00000000c0debabe <==> 0x00000000c0debabe PASS: SPR 774: 0x00000000c0debabe <==> 0x00000000c0debabe PASS: SPR 775: 0x00000000c0debabe <==> 0x00000000c0debabe PASS: SPR 776: 0x00000000c0debabe <==> 0x00000000c0debabe PASS: SPR 779: 0x00000000fa8b1afe <==> 0x00000000fa8b1afe PASS: SPR 780: 0xcafefacec0debabc <==> 0xcafefacec0debabc PASS: SPR 781: 0xcafefacec0debabe <==> 0xcafefacec0debabe PASS: SPR 782: 0xcafefacec0debabe <==> 0xcafefacec0debabe FAIL: SPR 784: 0xcafefacec0debabe <==> 000000000000000000 PASS: SPR 785: 0xcafefacec0debabe <==> 0xcafefacec0debabe PASS: SPR 786: 0xcafefacec006babe <==> 0xcafefacec006babe PASS: SPR 787: 0x00000000c0debabe <==> 0x00000000c0debabe PASS: SPR 788: 0x00000000c0debabe <==> 0x00000000c0debabe PASS: SPR 789: 0x00000000c0debabe <==> 0x00000000c0debabe PASS: SPR 790: 0x00000000c0debabe <==> 0x00000000c0debabe PASS: SPR 791: 0x00000000c0debabe <==> 0x00000000c0debabe PASS: SPR 792: 0x00000000c0debabe <==> 0x00000000c0debabe PASS: SPR 795: 0x00000000fa8b1afe <==> 0x00000000fa8b1afe PASS: SPR 796: 0xcafefacec0debabc <==> 0xcafefacec0debabc PASS: SPR 797: 0xcafefacec0debabe <==> 0xcafefacec0debabe PASS: SPR 798: 0xcafefacec0debabe <==> 0xcafefacec0debabe PASS: SPR 800: 0x80000000c0000000 <==> 0x80000000c0000000 PASS: SPR 801: 0x0000000080000000 <==> 0x0000000080000000 PASS: SPR 802: 0x80000000c0000000 <==> 0x80000000c0000000 PASS: SPR 803: 0x0000000080000000 <==> 0x0000000080000000 PASS: SPR 804: 0xcafefacec0debabe <==> 0xcafefacec0debabe PASS: SPR 805: 0xcafefacec0debabc <==> 0xcafefacec0debabc PASS: SPR 806: 0x80000000c0000000 <==> 0x80000000c0000000 FAIL: SPR 815: 0xcafefacec0debabe <==> 000000000000000000 SUMMARY: 47 tests, 4 unexpected failures EXIT: STATUS=3 $ qemu-system-ppc --version QEMU emulator version 2.5.0 (Debian 1:2.5+dfsg-5ubuntu10.16), Copyright (c) 2003-2008 Fabrice Bellard ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: linux-image-4.10.0-37-generic 4.10.0-37.41~16.04.1 ProcVersionSignature: User Name 4.10.0-37.41~16.04.1-generic 4.10.17 Uname: Linux 4.10.0-37-generic ppc64le ApportVersion: 2.20.1-0ubuntu2.10 Architecture: ppc64el Date: Mon Oct 16 09:16:08 2017 ProcEnviron: - TERM=xterm-256color - PATH=(custom, no user) - XDG_RUNTIME_DIR=<set> - LANG=en_US.UTF-8 - SHELL=/bin/bash + TERM=xterm-256color + PATH=(custom, no user) + XDG_RUNTIME_DIR=<set> + LANG=en_US.UTF-8 + SHELL=/bin/bash ProcLoadAvg: 0.02 0.14 0.17 1/1464 15093 ProcLocks: - 1: POSIX ADVISORY WRITE 1604 00:14:19651 0 EOF - 2: POSIX ADVISORY WRITE 2937 00:14:55331 0 EOF - 3: FLOCK ADVISORY WRITE 3046 00:14:67623 0 EOF - 4: POSIX ADVISORY WRITE 3124 00:14:57398 0 EOF - 5: POSIX ADVISORY WRITE 3047 00:14:87068 0 EOF + 1: POSIX ADVISORY WRITE 1604 00:14:19651 0 EOF + 2: POSIX ADVISORY WRITE 2937 00:14:55331 0 EOF + 3: FLOCK ADVISORY WRITE 3046 00:14:67623 0 EOF + 4: POSIX ADVISORY WRITE 3124 00:14:57398 0 EOF + 5: POSIX ADVISORY WRITE 3047 00:14:87068 0 EOF ProcSwaps: - Filename Type Size Used Priority - /swap.img file 8388544 0 -1 + Filename Type Size Used Priority + /swap.img file 8388544 0 -1 ProcVersion: Linux version 4.10.0-37-generic (buildd@bos01-ppc64el-026) (gcc version 5.4.0 20160609 (User Name/IBM 5.4.0-6ubuntu1~16.04.4) ) #41~16.04.1-User Name SMP Fri Oct 6 22:44:24 UTC 2017 SourcePackage: linux-hwe UpgradeStatus: No upgrade log present (probably fresh install) cpu_cores: Number of cores present = 20 cpu_coreson: Number of cores online = 20 cpu_smt: SMT is off
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1723904 Title: ubuntu-kvm-unit test failed with sprs test on ppc64le To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1723904/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
