Re: [Libguestfs] guestfs_launch gets stuck

Thanks Rich for you quick reply. I enabled logs and the program stuck again, here is the call stack and log: Thread 1 (Thread 0x7fac58edc8c0 (LWP 1271)): #0 0x00007fac578fac20 in __poll_nocancel () from /lib64/libc.so.6 #1 0x00007fac56df3c5a in virNetClientIOEventLoop () from /lib64/libvirt.so.0 #2 0x00007fac56df441b in virNetClientSendInternal () from /lib64/libvirt.so.0 #3 0x00007fac56df5843 in virNetClientSendWithReply () from /lib64/libvirt.so.0 #4 0x00007fac56df6052 in virNetClientProgramCall () from /lib64/libvirt.so.0 #5 0x00007fac56dcbfe2 in callFull.isra.2 () from /lib64/libvirt.so.0 #6 0x00007fac56de213d in remoteDomainCreateXML () from /lib64/libvirt.so.0 #7 0x00007fac56d82151 in virDomainCreateXML () from /lib64/libvirt.so.0 #8 0x00007fac58acca50 in launch_libvirt () from /lib64/libguestfs.so.0 #9 0x00007fac58ac2b2b in guestfs_impl_launch () from /lib64/libguestfs.so.0 #10 0x00007fac58a5eba5 in guestfs_launch () from /lib64/libguestfs.so.0 #11 0x00000000004117ca in main () Log: 2016-Aug-29 15:02:07 main:1385 Entering main() 2016-Aug-29 15:02:07 main:1393 guestfs_create succeeded 2016-Aug-29 15:02:07 main:1398 guestfs_set_network ok 2016-Aug-29 15:02:07 main:1406 Trying to add drive /dev/xvdc libguestfs: trace: add_drive "/dev/xvdc" "format:raw" libguestfs: trace: add_drive = 0 2016-Aug-29 15:02:07 main:1413 guestfs_add_drive_opts succeeded for drive: /dev/xvdc libguestfs: trace: launch libguestfs: trace: get_tmpdir libguestfs: trace: get_tmpdir = "/tmp" libguestfs: trace: version libguestfs: trace: version = <struct guestfs_version *> libguestfs: trace: get_backend libguestfs: trace: get_backend = "libvirt" libguestfs: launch: program=linuxxenfix libguestfs: launch: version=1.28.1rhel=7,release=1.55.el7.centos.2,libvirt libguestfs: launch: backend registered: unix libguestfs: launch: backend registered: uml libguestfs: launch: backend registered: libvirt libguestfs: launch: backend registered: direct libguestfs: launch: backend=libvirt libguestfs: launch: tmpdir=/tmp/libguestfsWmxUbv libguestfs: launch: umask=0022 libguestfs: launch: euid=0 libguestfs: libvirt version = 1002017 (1.2.17) libguestfs: guest random name = guestfs-0h3k91d5369tcde3 libguestfs: [00009ms] connect to libvirt libguestfs: opening libvirt handle: URI = qemu:///system, auth = default+wrapper, flags = 0 libguestfs: successfully opened libvirt handle: conn = 0xd84c40 libguestfs: qemu version (reported by libvirt) = 1005003 (1.5.3) libguestfs: [00010ms] get libvirt capabilities libguestfs: [00012ms] parsing capabilities XML libguestfs: trace: get_backend_setting "force_tcg" libguestfs: trace: get_backend_setting = NULL (error) libguestfs: trace: get_backend_setting "internal_libvirt_label" libguestfs: trace: get_backend_setting = NULL (error) libguestfs: trace: get_backend_setting "internal_libvirt_imagelabel" libguestfs: trace: get_backend_setting = NULL (error) libguestfs: trace: get_backend_setting "internal_libvirt_norelabel_disks" libguestfs: trace: get_backend_setting = NULL (error) libguestfs: [00012ms] build appliance libguestfs: trace: get_cachedir libguestfs: trace: get_cachedir = "/var/tmp" libguestfs: [00030ms] begin building supermin appliance libguestfs: [00030ms] 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: 5.1.10 supermin: rpm: detected RPM version 4.11 supermin: package handler: fedora/rpm supermin: acquiring lock on /var/tmp/.guestfs-0/lock supermin: build: /usr/lib64/guestfs/supermin.d supermin: build: visiting /usr/lib64/guestfs/supermin.d/base.tar.gz type gzip base image (tar) supermin: build: visiting /usr/lib64/guestfs/supermin.d/daemon.tar.gz type gzip base image (tar) supermin: build: visiting /usr/lib64/guestfs/supermin.d/excludefiles type uncompressed excludefiles supermin: build: visiting /usr/lib64/guestfs/supermin.d/hostfiles type uncompressed hostfiles supermin: build: visiting /usr/lib64/guestfs/supermin.d/init.tar.gz type gzip base image (tar) supermin: build: visiting /usr/lib64/guestfs/supermin.d/packages type uncompressed packages supermin: build: visiting /usr/lib64/guestfs/supermin.d/udev-rules.tar.gz type gzip base image (tar) supermin: build: 184 packages, including dependencies supermin: build: 30935 files supermin: build: 12031 files, after removing unreadable files supermin: build: 9035 files, after matching excludefiles supermin: build: 9039 files, after adding hostfiles supermin: build: 9068 files, after munging supermin: kernel: picked kernel vmlinuz-3.10.0-327.13.1.el7.x86_64 supermin: kernel: picked modules path /lib/modules/3.10.0-327.13.1.el7.x86_64 supermin: kernel: kernel_version 3.10.0-327.13.1.el7.x86_64 supermin: kernel: modules /lib/modules/3.10.0-327.13.1.el7.x86_64 supermin: ext2: creating empty ext2 filesystem '/var/tmp/.guestfs-0/appliance.d.omlxj0zh/root' supermin: ext2: populating from base image supermin: ext2: copying files from host filesystem supermin: ext2: copying kernel modules supermin: ext2: creating minimal initrd '/var/tmp/.guestfs-0/appliance.d.omlxj0zh/initrd' supermin: ext2: wrote 34 modules to minimal initrd supermin: renaming /var/tmp/.guestfs-0/appliance.d.omlxj0zh to /var/tmp/.guestfs-0/appliance.d libguestfs: [62773ms] finished building supermin appliance libguestfs: trace: disk_create "/tmp/libguestfsWmxUbv/overlay1" "qcow2" -1 "backingfile:/var/tmp/.guestfs-0/appliance.d/root" "backingformat:raw" libguestfs: command: run: qemu-img libguestfs: command: run: \ create libguestfs: command: run: \ -f qcow2 libguestfs: command: run: \ -o backing_file=/var/tmp/.guestfs-0/appliance.d/root,backing_fmt=raw libguestfs: command: run: \ /tmp/libguestfsWmxUbv/overlay1 Formatting '/tmp/libguestfsWmxUbv/overlay1', fmt=qcow2 size=4294967296 backing_file='/var/tmp/.guestfs-0/appliance.d/root' backing_fmt='raw' encryption=off cluster_size=65536 lazy_refcounts=off libguestfs: trace: disk_create = 0 libguestfs: set_socket_create_context: context_new failed: kernel: Invalid argument [you can ignore this UNLESS using SELinux + sVirt] libguestfs: [62889ms] create libvirt XML libguestfs: command: run: dmesg | grep -Eoh 'lpj=[[:digit:]]+' libguestfs: read_lpj_from_dmesg: calculated lpj=2394042 libguestfs: trace: get_cachedir libguestfs: trace: get_cachedir = "/var/tmp" libguestfs: libvirt XML:\n<?xml version="1.0"?>\n<domain type="qemu" xmlns:qemu="http://libvirt.org/schemas/domain/qemu/1.0">\n <name>guestfs-0h3k91d5369tcde3</name>\n <memory unit="MiB">500</memory>\n <currentMemory unit="MiB">500</currentMemory>\n <vcpu>1</vcpu>\n <clock offset="utc">\n <timer name="rtc" tickpolicy="catchup"/>\n <timer name="pit" tickpolicy="delay"/>\n <timer name="hpet" present="no"/>\n </clock>\n <os>\n <type>hvm</type>\n <kernel>/var/tmp/.guestfs-0/appliance.d/kernel</kernel>\n <initrd>/var/tmp/.guestfs-0/appliance.d/initrd</initrd>\n <cmdline>panic=1 console=ttyS0 udevtimeout=6000 udev.event-timeout=6000 no_timer_check lpj=2394042 acpi=off printk.time=1 cgroup_disable=memory root=/dev/sdb selinux=0 guestfs_verbose=1 guestfs_network=1 TERM=linux</cmdline>\n <bios useserial="yes"/>\n </os>\n <on_reboot>destroy</on_reboot>\n <devices>\n <controller type="scsi" index="0" model="virtio-scsi"/>\n <disk device="disk" type="block">\n <source dev="/dev/xvdc"/>\n <target dev="sda" bus="scsi"/>\n <driver name="qemu" type="raw" cache="writeback"/>\n <address type="drive" controller="0" bus="0" target="0" unit="0"/>\n </disk>\n <disk type="file" device="disk">\n <source file="/tmp/libguestfsWmxUbv/overlay1"/>\n <target dev="sdb" bus="scsi"/>\n <driver name="qemu" type="qcow2" cache="unsafe"/>\n <address type="drive" controller="0" bus="0" target="1" unit="0"/>\n <shareable/>\n </disk>\n <serial type="unix">\n <source mode="connect" path="/tmp/libguestfsWmxUbv/console.sock"/>\n <target port="0"/>\n </serial>\n <channel type="unix">\n <source mode="connect" path="/tmp/libguestfsWmxUbv/guestfsd.sock"/>\n <target type="virtio" name="org.libguestfs.channel.0"/>\n </channel>\n </devices>\n <qemu:commandline>\n <qemu:env name="TMPDIR" value="/var/tmp"/>\n <qemu:arg value="-netdev"/>\n <qemu:arg value="user,id=usernet,net=169.254.0.0/16"/>\n <qemu:arg value="-device"/>\n <qemu:arg value="virtio-net-pci,netdev=usernet"/>\n </qemu:commandline>\n</domain>\n libguestfs: trace: get_cachedir libguestfs: trace: get_cachedir = "/var/tmp" libguestfs: command: run: ls libguestfs: command: run: \ -a libguestfs: command: run: \ -l libguestfs: command: run: \ -Z /var/tmp/.guestfs-0 libguestfs: drwxr-xr-x root root ? . libguestfs: drwxrwxrwt root root ? .. libguestfs: drwxr-xr-x root root ? appliance.d libguestfs: -rw-r--r-- root root ? lock libguestfs: command: run: ls libguestfs: command: run: \ -a libguestfs: command: run: \ -l libguestfs: command: run: \ -Z /tmp/libguestfsWmxUbv libguestfs: drwxr-xr-x root root ? . libguestfs: drwxrwxrwt root root ? .. libguestfs: srw-rw---- root qemu ? console.sock libguestfs: srw-rw---- root qemu ? guestfsd.sock libguestfs: -rw-r--r-- root root ? overlay1 libguestfs: -rwxr-xr-x root root ? umask-check libguestfs: [62900ms] launch libvirt guest 2016-08-29 21:42 GMT+08:00 Richard W.M. Jones <rjones(a)redhat.com&gt;: