Dear
On redhat 7.6 OS with intel ice lake cpu like :
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[root@localhost ~]# lscpu
Architecture: x86_64
CPU op-mode(s): 32-bit, 64-bit
Byte Order: Little Endian
CPU(s): 96
On-line CPU(s) list: 0-95
Thread(s) per core: 2
Core(s) per socket: 24
Socket(s): 2
NUMA node(s): 2
Vendor ID: GenuineIntel
CPU family: 6
Model: 106
Model name: Intel(R) Xeon(R) Gold
5318Y CPU @ 2.10GHz
Stepping: 6
CPU MHz: 2100.000
BogoMIPS: 4200.00
Virtualization: VT-x
L1d cache: 48K
L1i cache: 32K
L2 cache: 1280K
L3 cache: 36864K
NUMA node0 CPU(s):
0,2,4,6,8,10,12,14,16,18,20,22,24,26,28,30,32,34,36,38,40,42,44,46,48,50,52,54,56,58,60,62,64,66,68,70,72,74,76,78,80,82,84,86,88,90,92,94
NUMA node1 CPU(s):
1,3,5,7,9,11,13,15,17,19,21,23,25,27,29,31,33,35,37,39,41,43,45,47,49,51,53,55,57,59,61,63,65,67,69,71,73,75,77,79,81,83,85,87,89,91,93,95
Flags: fpu vme de
pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi
mmx fxsr sse sse2 ss ht tm pbe syscall nx pdpe1gb rdtscp lm constant_tsc art
arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc aperfmperf eagerfpu
pni pclmulqdq dtes64 monitor ds_cpl vmx smx est tm2 ssse3 sdbg fma cx16 xtpr
pdcm pcid dca sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave
avx f16c rdrand lahf_lm abm 3dnowprefetch epb cat_l3 intel_pt ssbd mba ibrs
ibpb stibp ibrs_enhanced tpr_shadow vnmi flexpriority ept vpid fsgsbase
tsc_adjust bmi1 hle avx2 smep bmi2 erms invpcid rtm cqm rdt_a avx512f avx512dq
rdseed adx smap avx512ifma clflushopt clwb avx512cd sha_ni avx512bw avx512vl
xsaveopt xsavec xgetbv1 cqm_llc cqm_occup_llc cqm_mbm_total cqm_mbm_local
dtherm ida arat pln pts avx512vbmi umip pku ospke avx512_vbmi2 gfni vaes
vpclmulqdq avx512_vnni avx512_bitalg avx512_vpopcntdq spec_ctrl intel_stibp
flush_l1d arch_capabilities
[root@localhost ~]# uname -a
Linux localhost.localdomain 3.10.0-957.el7.x86_64 #1 SMP Thu Oct 4 20:48:51 UTC
2018 x86_64 x86_64 x86_64 GNU/Linux
[root@localhost ~]#
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When create kvm got this error:
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[root@localhost ~]# /usr/libexec/qemu-kvm -name test -machine pc -m 8192
kvm_init_vcpu failed: Invalid argument
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So I trust to debug this :
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[root@localhost ~]# export LIBGUESTFS_BACKEND=direct
[root@localhost ~]# export LIBGUESTFS_DEBUG=1
[root@localhost ~]# export LIBGUESTFS_TRACE=1
[root@localhost ~]# libguestfs-test-tool
************************************************************
*
IMPORTANT NOTICE
*
* When reporting bugs, include the COMPLETE, UNEDITED
* output below in your bug report.
*
************************************************************
libguestfs: trace: set_verbose true
libguestfs: trace: set_verbose = 0
libguestfs: trace: set_backend "direct"
libguestfs: trace: set_backend = 0
libguestfs: trace: set_verbose true
libguestfs: trace: set_verbose = 0
LIBGUESTFS_DEBUG=1
LIBGUESTFS_BACKEND=direct
LIBGUESTFS_TRACE=1
PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/root/bin
XDG_RUNTIME_DIR=/run/user/0
SELinux: Enforcing
libguestfs: trace: add_drive_scratch 104857600
libguestfs: trace: get_tmpdir
libguestfs: trace: get_tmpdir = "/tmp"
libguestfs: trace: disk_create "/tmp/libguestfsWpVuIR/scratch1.img" "raw"
104857600
libguestfs: trace: disk_create = 0
libguestfs: trace: add_drive "/tmp/libguestfsWpVuIR/scratch1.img" "format:raw"
"cachemode:unsafe"
libguestfs: trace: add_drive = 0
libguestfs: trace: add_drive_scratch = 0
libguestfs: trace: get_append
libguestfs: trace: get_append = "NULL"
guestfs_get_append: (null)
libguestfs: trace: get_autosync
libguestfs: trace: get_autosync = 1
guestfs_get_autosync: 1
libguestfs: trace: get_backend
libguestfs: trace: get_backend = "direct"
guestfs_get_backend: direct
libguestfs: trace: get_backend_settings
libguestfs: trace: get_backend_settings = []
guestfs_get_backend_settings: []
libguestfs: trace: get_cachedir
libguestfs: trace: get_cachedir = "/var/tmp"
guestfs_get_cachedir: /var/tmp
libguestfs: trace: get_hv
libguestfs: trace: get_hv = "/usr/libexec/qemu-kvm"
guestfs_get_hv: /usr/libexec/qemu-kvm
libguestfs: trace: get_memsize
libguestfs: trace: get_memsize = 500
guestfs_get_memsize: 500
libguestfs: trace: get_network
libguestfs: trace: get_network = 0
guestfs_get_network: 0
libguestfs: trace: get_path
libguestfs: trace: get_path = "/usr/lib64/guestfs"
guestfs_get_path: /usr/lib64/guestfs
libguestfs: trace: get_pgroup
libguestfs: trace: get_pgroup = 0
guestfs_get_pgroup: 0
libguestfs: trace: get_program
libguestfs: trace: get_program = "libguestfs-test-tool"
guestfs_get_program: libguestfs-test-tool
libguestfs: trace: get_recovery_proc
libguestfs: trace: get_recovery_proc = 1
guestfs_get_recovery_proc: 1
libguestfs: trace: get_smp
libguestfs: trace: get_smp = 1
guestfs_get_smp: 1
libguestfs: trace: get_sockdir
libguestfs: trace: get_sockdir = "/tmp"
guestfs_get_sockdir: /tmp
libguestfs: trace: get_tmpdir
libguestfs: trace: get_tmpdir = "/tmp"
guestfs_get_tmpdir: /tmp
libguestfs: trace: get_trace
libguestfs: trace: get_trace = 1
guestfs_get_trace: 1
libguestfs: trace: get_verbose
libguestfs: trace: get_verbose = 1
guestfs_get_verbose: 1
host_cpu: x86_64
Launching appliance, timeout set to 600 seconds.
libguestfs: trace: launch
libguestfs: trace: max_disks
libguestfs: trace: max_disks = 255
libguestfs: trace: version
libguestfs: trace: version = <struct guestfs_version = major: 1, minor: 38,
release: 2, extra: rhel=7,release=12.el7,libvirt, >
libguestfs: trace: get_backend
libguestfs: trace: get_backend = "direct"
libguestfs: launch: program=libguestfs-test-tool
libguestfs: launch: version=1.38.2rhel=7,release=12.el7,libvirt
libguestfs: launch: backend registered: unix
libguestfs: launch: backend registered: uml
libguestfs: launch: backend registered: libvirt
libguestfs: launch: backend registered: direct
libguestfs: launch: backend=direct
libguestfs: launch: tmpdir=/tmp/libguestfsWpVuIR
libguestfs: launch: umask=0022
libguestfs: launch: euid=0
libguestfs: trace: get_backend_setting "force_tcg"
libguestfs: trace: get_backend_setting = NULL (error)
libguestfs: trace: get_cachedir
libguestfs: trace: get_cachedir = "/var/tmp"
libguestfs: begin building supermin appliance
libguestfs: run supermin
libguestfs: command: run: /usr/bin/supermin5
libguestfs: command: run: \ --build
libguestfs: command: run: \ --verbose
libguestfs: command: run: \ --if-newer
libguestfs: command: run: \ --lock /var/tmp/.guestfs-0/lock
libguestfs: command: run: \ --copy-kernel
libguestfs: command: run: \ -f ext2
libguestfs: command: run: \ --host-cpu x86_64
libguestfs: command: run: \ /usr/lib64/guestfs/supermin.d
libguestfs: command: run: \ -o /var/tmp/.guestfs-0/appliance.d
supermin: version: 5.1.19
supermin: rpm: detected RPM version 4.11
supermin: package handler: fedora/rpm
supermin: acquiring lock on /var/tmp/.guestfs-0/lock
supermin: if-newer: output does not need rebuilding
libguestfs: finished building supermin appliance
libguestfs: begin testing qemu features
libguestfs: trace: get_cachedir
libguestfs: trace: get_cachedir = "/var/tmp"
libguestfs: checking for previously cached test results of
/usr/libexec/qemu-kvm, in /var/tmp/.guestfs-0
libguestfs: loading previously cached test results
libguestfs: QMP parse error: parse error: premature EOF\n
\n
(right here) ------^\n (ignored)
libguestfs: qemu version: 1.5
libguestfs: qemu mandatory locking: no
libguestfs: trace: get_sockdir
libguestfs: trace: get_sockdir = "/tmp"
libguestfs: finished testing qemu features
libguestfs: trace: get_backend_setting "gdb"
libguestfs: trace: get_backend_setting = NULL (error)
/usr/libexec/qemu-kvm \
-global virtio-blk-pci.scsi=off \
-nodefconfig \
-enable-fips \
-nodefaults \
-display none \
-machine accel=kvm:tcg \
-cpu host \
-m 500 \
-no-reboot \
-rtc driftfix=slew \
-no-hpet \
-global kvm-pit.lost_tick_policy=discard \
-kernel /var/tmp/.guestfs-0/appliance.d/kernel \
-initrd /var/tmp/.guestfs-0/appliance.d/initrd \
-object rng-random,filename=/dev/urandom,id=rng0 \
-device virtio-rng-pci,rng=rng0 \
-device virtio-scsi-pci,id=scsi \
-drive
file=/tmp/libguestfsWpVuIR/scratch1.img,cache=unsafe,format=raw,id=hd0,if=none \
-device scsi-hd,drive=hd0 \
-drive
file=/var/tmp/.guestfs-0/appliance.d/root,snapshot=on,id=appliance,cache=unsafe,if=none,format=raw
\
-device scsi-hd,drive=appliance \
-device virtio-serial-pci \
-serial stdio \
-device sga \
-chardev
socket,path=/tmp/libguestfs1BAOaL/guestfsd.sock,id=channel0 \
-device
virtserialport,chardev=channel0,name=org.libguestfs.channel.0 \
-append "panic=1 console=ttyS0 edd=off udevtimeout=6000
udev.event-timeout=6000 no_timer_check printk.time=1 cgroup_disable=memory
usbcore.nousb cryptomgr.notests tsc=reliable 8250.nr_uarts=1 root=/dev/sdb
selinux=0 guestfs_verbose=1 TERM=vt100"
kvm_init_vcpu failed: Invalid argument
libguestfs: error: appliance closed the connection unexpectedly, see earlier
error messages
libguestfs: child_cleanup: 0x55884c0456e0: child process died
libguestfs: sending SIGTERM to process 41216
libguestfs: error: /usr/libexec/qemu-kvm exited with error status 1, see debug
messages above
libguestfs: error: guestfs_launch failed, see earlier error messages
libguestfs: trace: launch = -1 (error)
libguestfs: trace: close
libguestfs: closing guestfs handle 0x55884c0456e0 (state 0)
libguestfs: command: run: rm
libguestfs: command: run: \ -rf /tmp/libguestfsWpVuIR
libguestfs: command: run: rm
libguestfs: command: run: \ -rf /tmp/libguestfs1BAOaL
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Please help me.
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