virt-host-validate show like this: QEMU: Checking for hardware virtualization : PASS QEMU: Checking if device /dev/kvm exists : PASS QEMU: Checking if device /dev/kvm is accessible : PASS QEMU: Checking if device /dev/vhost-net exists : PASS QEMU: Checking if device /dev/net/tun exists : PASS QEMU: Checking for cgroup 'memory' controller support : PASS QEMU: Checking for cgroup 'memory' controller mount-point : PASS QEMU: Checking for cgroup 'cpu' controller support : PASS QEMU: Checking for cgroup 'cpu' controller mount-point : PASS QEMU: Checking for cgroup 'cpuacct' controller support : PASS QEMU: Checking for cgroup 'cpuacct' controller mount-point : PASS QEMU: Checking for cgroup 'cpuset' controller support : PASS QEMU: Checking for cgroup 'cpuset' controller mount-point : PASS QEMU: Checking for cgroup 'devices' controller support : PASS QEMU: Checking for cgroup 'devices' controller mount-point : PASS QEMU: Checking for cgroup 'blkio' controller support : PASS QEMU: Checking for cgroup 'blkio' controller mount-point : PASS QEMU: Checking for device assignment IOMMU support : PASS QEMU: Checking if IOMMU is enabled by kernel : PASS LXC: Checking for Linux >= 2.6.26 : PASS LXC: Checking for namespace ipc : PASS LXC: Checking for namespace mnt : PASS LXC: Checking for namespace pid : PASS LXC: Checking for namespace uts : PASS LXC: Checking for namespace net : PASS LXC: Checking for namespace user : PASS LXC: Checking for cgroup 'memory' controller support : PASS LXC: Checking for cgroup 'memory' controller mount-point : PASS LXC: Checking for cgroup 'cpu' controller support : PASS LXC: Checking for cgroup 'cpu' controller mount-point : PASS LXC: Checking for cgroup 'cpuacct' controller support : PASS LXC: Checking for cgroup 'cpuacct' controller mount-point : PASS LXC: Checking for cgroup 'cpuset' controller support : PASS LXC: Checking for cgroup 'cpuset' controller mount-point : PASS LXC: Checking for cgroup 'devices' controller support : PASS LXC: Checking for cgroup 'devices' controller mount-point : PASS LXC: Checking for cgroup 'blkio' controller support : PASS LXC: Checking for cgroup 'blkio' controller mount-point : PASS LXC: Checking if device /sys/fs/fuse/connections exists : FAIL (Load the 'fuse' module to enable /proc/ overrides) same X86 server with redhat 8.4 has no problem.

------------------ Original ------------------ From: "Richard W.M. Jones" <rjones(a)redhat.com>; Date: Fri, Sep 23, 2022 09:23 PM To: &quot;mark&quot;&lt;makeplay(a)qq.com&gt;; Cc: &quot;libguestfs&quot;&lt;libguestfs(a)redhat.com&gt;; Subject: Re: [Libguestfs] redhat 7.6 on intel ice lake sp kvm got error On Fri, Sep 23, 2022 at 09:05:31PM +0800, mark wrote: > Dear > On redhat 7.6 OS with intel ice lake cpu like : > _________________________________________________________________________ > [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 ~]# > __________________________________________________________________________________________________ > > When create kvm got this error: > __________________________________________________________________________________________________ > [root@localhost ~]# /usr/libexec/qemu-kvm -name test -machine pc -m 8192 > kvm_init_vcpu failed: Invalid argument Interesting - I actually don't know the answer to this. What is the output of this command? # virt-host-validate Rich. > __________________________________________________________________________________________________ > > > So I trust to debug this : > __________________________________________________________________________________________________ > [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 > __________________________________________________________________________________________________ > > > Please help me. > _______________________________________________ > Libguestfs mailing list > Libguestfs(a)redhat.com > https://listman.redhat.com/mailman/listinfo/libguestfs -- Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones Read my programming and virtualization blog: http://rwmj.wordpress.com virt-p2v converts physical machines to virtual machines. Boot with a live CD or over the network (PXE) and turn machines into KVM guests. http://libguestfs.org/virt-v2v