1. Start a guest.

2. Do live migration.
# virsh migrate test qemu+ssh://XXXX/system --live --postcopy --verbose --bandwidth 5 --postcopy-bandwidth 5

3. Change to postcopy and abort migration in another terminal.
# virsh migrate-postcopy test

# virsh domjobabort test --postcopy

4. In the first terminal will get following error.
# virsh migrate test qemu+ssh://XXXX/system --live --postcopy --verbose --bandwidth 5 --postcopy-bandwidth 5
Migration: [ 8.50 %]error: operation failed: job 'migration in' failed in post-copy phase 


Then resume postcopy migration.
# virsh migrate test qemu+ssh://XXXX/system --live --postcopy --verbose --bandwidth 5 --postcopy-bandwidth 5 --postcopy-resume
error: End of file while reading data: Warning: Permanently added '10.72.132.46' (ED25519) to the list of known hosts.
virt-ssh-helper: could not proxy traffic: End of file while reading data: Input/output error: Input/output error

# virsh list --all
 Id   Name   State
---------------------
 1    test   paused
 

5. Check the virtqemud coredump file on target host:
# virsh list --all
 Id   Name   State
----------------------
 1    test   running

# coredumpctl list
TIME                         PID UID GID SIG     COREFILE EXE                 SIZE
Thu 2025-05-08 01:48:21 EDT 5305   0   0 SIGSEGV present  /usr/sbin/virtqemud 1.1M

# coredumpctl dump 5305
           PID: 5305 (virtqemud)
           UID: 0 (root)
           GID: 0 (root)
        Signal: 11 (SEGV)
     Timestamp: Thu 2025-05-08 01:48:20 EDT (32min ago)
  Command Line: /usr/sbin/virtqemud --timeout 120
    Executable: /usr/sbin/virtqemud
 Control Group: /system.slice/virtqemud.service
          Unit: virtqemud.service
         Slice: system.slice
       Boot ID: 6dcce9f49d78425eaedd3626a6cc3881
    Machine ID: a5e174db5c894405a5747d2e800515e6
      Hostname: dell-per750-63.lab.eng.pek2.redhat.com
       Storage: /var/lib/systemd/coredump/core.virtqemud.0.6dcce9f49d78425eaedd3626a6cc3881.5305.1746683300000000.zst (present)
  Size on Disk: 1.1M
       Message: Process 5305 (virtqemud) of user 0 dumped core.
                
                Module libcap.so.2 from rpm libcap-2.69-7.el10.x86_64
                Module libnss_systemd.so.2 from rpm systemd-257-11.el10.x86_64
                Module libnbd.so.0 from rpm libnbd-1.22.2-1.el10.x86_64
                Module libvirt_driver_qemu.so from rpm libvirt-11.2.0-1.el10.x86_64
                Module libbrotlicommon.so.1 from rpm brotli-1.1.0-6.el10.x86_64
                Module libevent-2.1.so.7 from rpm libevent-2.1.12-16.el10.x86_64
                Module libkeyutils.so.1 from rpm keyutils-1.6.3-5.el10.x86_64
                Module libkrb5support.so.0 from rpm krb5-1.21.3-7.el10.x86_64
                Module libblkid.so.1 from rpm util-linux-2.40.2-10.el10.x86_64
                Module libbrotlidec.so.1 from rpm brotli-1.1.0-6.el10.x86_64
                Module libssl.so.3 from rpm openssl-3.5.0-2.el10.x86_64
                Module libpsl.so.5 from rpm libpsl-0.21.5-6.el10.x86_64
                Module libnghttp2.so.14 from rpm nghttp2-1.64.0-2.el10.x86_64
                Module libcrypt.so.2 from rpm libxcrypt-4.4.36-10.el10.x86_64
                Module libcrypto.so.3 from rpm openssl-3.5.0-2.el10.x86_64
                Module libtasn1.so.6 from rpm libtasn1-4.20.0-1.el10.x86_64
                Module libunistring.so.5 from rpm libunistring-1.1-10.el10.x86_64
                Module libidn2.so.0 from rpm libidn2-2.3.7-3.el10.x86_64
                Module libp11-kit.so.0 from rpm p11-kit-0.25.5-7.el10.x86_64
                Module libattr.so.1 from rpm attr-2.5.2-5.el10.x86_64
                Module liblzma.so.5 from rpm xz-5.6.2-3.el10.x86_64
                Module libcom_err.so.2 from rpm e2fsprogs-1.47.1-3.el10.x86_64
                Module libk5crypto.so.3 from rpm krb5-1.21.3-7.el10.x86_64
                Module libkrb5.so.3 from rpm krb5-1.21.3-7.el10.x86_64
                Module libgssapi_krb5.so.2 from rpm krb5-1.21.3-7.el10.x86_64
                Module libmount.so.1 from rpm util-linux-2.40.2-10.el10.x86_64
                Module libz.so.1 from rpm zlib-ng-2.2.3-2.el10.x86_64
                Module libgmodule-2.0.so.0 from rpm glib2-2.80.4-4.el10.x86_64
                Module libffi.so.8 from rpm libffi-3.4.4-9.el10.x86_64
                Module libpcre2-8.so.0 from rpm pcre2-10.44-1.el10.3.x86_64
                Module libcurl.so.4 from rpm curl-8.12.1-2.el10.x86_64
                Module libsasl2.so.3 from rpm cyrus-sasl-2.1.28-27.el10.x86_64
                Module libssh.so.4 from rpm libssh-0.11.1-1.el10.x86_64
                Module libselinux.so.1 from rpm libselinux-3.8-1.el10.x86_64
                Module libnuma.so.1 from rpm numactl-2.0.19-1.el10.x86_64
                Module libnl-3.so.200 from rpm libnl3-3.11.0-1.el10.x86_64
                Module libjson-c.so.5 from rpm json-c-0.18-3.el10.x86_64
                Module libgnutls.so.30 from rpm gnutls-3.8.9-14.el10.x86_64
                Module libcap-ng.so.0 from rpm libcap-ng-0.8.4-6.el10.x86_64
                Module libaudit.so.1 from rpm audit-4.0.3-4.el10.x86_64
                Module libacl.so.1 from rpm acl-2.3.2-4.el10.x86_64
                Module libxml2.so.2 from rpm libxml2-2.12.5-5.el10_0.x86_64
                Module libtirpc.so.3 from rpm libtirpc-1.3.5-1.el10.x86_64
                Module libgio-2.0.so.0 from rpm glib2-2.80.4-4.el10.x86_64
                Module libgobject-2.0.so.0 from rpm glib2-2.80.4-4.el10.x86_64
                Module libglib-2.0.so.0 from rpm glib2-2.80.4-4.el10.x86_64
                Module libvirt-qemu.so.0 from rpm libvirt-11.2.0-1.el10.x86_64
                Module libvirt-lxc.so.0 from rpm libvirt-11.2.0-1.el10.x86_64
                Module libvirt.so.0 from rpm libvirt-11.2.0-1.el10.x86_64
                Stack trace of thread 5306:
                #0  0x00007f6320552fed qemuProcessIncomingDefNew (libvirt_driver_qemu.so + 0x152fed)
                #1  0x00007f632050d662 qemuMigrationDstPrepare (libvirt_driver_qemu.so + 0x10d662)
                #2  0x00007f632050edf5 qemuMigrationDstPrepareAny (libvirt_driver_qemu.so + 0x10edf5)
                #3  0x00007f63205104b3 qemuMigrationDstPrepareDirect (libvirt_driver_qemu.so + 0x1104b3)
                #4  0x00007f63204e1d85 qemuDomainMigratePrepare3Params.lto_priv.0 (libvirt_driver_qemu.so + 0xe1d85)
                #5  0x00007f632611cfa4 virDomainMigratePrepare3Params (libvirt.so.0 + 0x31cfa4)
                #6  0x000055bed59e8a91 n/a (n/a + 0x0)
                ELF object binary architecture: AMD x86-64