Comment 0 for bug 1723914

Similar to bug 1723904, bug 1712803.
The failed "emulator" test from kvm-unit-test will pass with qemu-2.7.1 built from source.

ubuntu@modoc:~/kvm-unit-tests$ sudo /bin/bash -c "TESTNAME=emulator TIMEOUT=90s ACCEL= ./powerpc/run powerpc/emulator.elf -smp 1
> "
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/emulator.elf -smp 1 # -initrd /tmp/tmp.BJ2sE7V2Jc
FAIL: emulator: 64bit: detected
PASS: emulator: invalid: exception
PASS: emulator: lswx: alignment
PASS: emulator: lswi: alignment
SUMMARY: 4 tests, 1 unexpected failures

EXIT: STATUS=3

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 10:10:46 2017
ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcLoadAvg: 0.00 0.00 0.57 1/1457 83356
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
ProcSwaps:
 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