Re: [RFC v5 0/3] migration: reduce time of loading non-iterable vmstate

[Juan Quintela <quintela@redhat.com>]

Chuang Xu <xuchuangxclwt@bytedance.com> wrote:
> In this version:

Hi

I had to drop this.  It breaks migration of dbus-vmstate.

.[K144/179 qemu:qtest+qtest-x86_64 / qtest-x86_64/virtio-net-failover             ERROR           5.66s   killed by signal 6 SIGABRT
>>> G_TEST_DBUS_DAEMON=/mnt/code/qemu/multifd/tests/dbus-vmstate-daemon.sh QTEST_QEMU_BINARY=./qemu-system-x86_64 MALLOC_PERTURB_=145 /scratch/qemu/multifd/x64/tests/qtest/virtio-net-failover --tap -k
―――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――― ✀  ――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――
stderr:
qemu-system-x86_64: /mnt/code/qemu/multifd/include/exec/memory.h:1112: address_space_to_flatview: Assertion `(!memory_region_transaction_in_progress() && qemu_mutex_iothread_locked()) || rcu_read_is_locked()' failed.
Broken pipe
../../../../mnt/code/qemu/multifd/tests/qtest/libqtest.c:190: kill_qemu() detected QEMU death from signal 6 (Aborted) (core dumped)

(test program exited with status code -6)

TAP parsing error: Too few tests run (expected 23, got 12)
――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――

Can you take a look at this?

I reproduced it with "make check" and qemu compiled with the configure
line attached.

Later, Juan.

configure --enable-trace-backends=log
	--prefix=/usr
	--sysconfdir=/etc/sysconfig/
	--audio-drv-list=pa
	--target-list=x86_64-softmmu
	--with-coroutine=ucontext
	--with-git-submodules=validate
	--enable-fdt=system
	--enable-alsa
	--enable-attr
	--enable-auth-pam
	--enable-avx2
	--enable-avx512f
	--enable-bochs
	--enable-bpf
	--enable-brlapi
	--disable-bsd-user
	--enable-bzip2
	--enable-cap-ng
	--disable-capstone
	--disable-cfi
	--disable-cfi-debug
	--enable-cloop
	--disable-cocoa
	--enable-containers
	--disable-coreaudio
	--enable-coroutine-pool
	--enable-crypto-afalg
	--enable-curl
	--enable-curses
	--enable-dbus-display
	--enable-debug-info
	--disable-debug-mutex
	--disable-debug-stack-usage
	--disable-debug-tcg
	--enable-dmg
	--disable-docs
	--disable-dsound
	--enable-fdt
	--disable-fuse
	--disable-fuse-lseek
	--disable-fuzzing
	--disable-gcov
	--enable-gettext
	--enable-gio
	--enable-glusterfs
	--enable-gnutls
	--disable-gprof
	--enable-gtk
	--disable-guest-agent
	--disable-guest-agent-msi
	--disable-hax
	--disable-hvf
	--enable-iconv
	--enable-install-blobs
	--enable-jack
	--enable-keyring
	--enable-kvm
	--enable-l2tpv3
	--enable-libdaxctl
	--enable-libiscsi
	--enable-libnfs
	--enable-libpmem
	--enable-libssh
	--enable-libudev
	--enable-libusb
	--enable-linux-aio
	--enable-linux-io-uring
	--disable-linux-user
	--enable-live-block-migration
	--disable-lto
	--disable-lzfse
	--enable-lzo
	--disable-malloc-trim
	--enable-membarrier
	--enable-module-upgrades
	--enable-modules
	--enable-mpath
	--enable-multiprocess
	--disable-netmap
	--enable-nettle
	--enable-numa
	--disable-nvmm
	--enable-opengl
	--enable-oss
	--enable-pa
	--enable-parallels
	--enable-pie
	--enable-plugins
	--enable-png
	--disable-profiler
	--enable-pvrdma
	--enable-qcow1
	--enable-qed
	--disable-qom-cast-debug
	--enable-rbd
	--enable-rdma
	--enable-replication
	--enable-rng-none
	--disable-safe-stack
	--disable-sanitizers
	--enable-stack-protector
	--enable-sdl
	--enable-sdl-image
	--enable-seccomp
	--enable-selinux
	--enable-slirp
	--enable-slirp-smbd
	--enable-smartcard
	--enable-snappy
	--enable-sparse
	--enable-spice
	--enable-spice-protocol
	--enable-system
	--enable-tcg
	--disable-tcg-interpreter
	--disable-tools
	--enable-tpm
	--disable-tsan
	--disable-u2f
	--enable-usb-redir
	--disable-user
	--disable-vde
	--enable-vdi
	--enable-vhost-crypto
	--enable-vhost-kernel
	--enable-vhost-net
	--enable-vhost-user
	--enable-vhost-user-blk-server
	--enable-vhost-vdpa
	--enable-virglrenderer
	--enable-virtfs
	--enable-virtiofsd
	--enable-vnc
	--enable-vnc-jpeg
	--enable-vnc-sasl
	--enable-vte
	--enable-vvfat
	--enable-werror
	--disable-whpx
	--enable-xen
	--enable-xen-pci-passthrough
	--enable-xkbcommon
	--enable-zstd
	--disable-gcrypt