network: 0.872 x86: 0.792 files: 0.745 i386: 0.731 device: 0.685 debug: 0.666 semantic: 0.566 vnc: 0.558 performance: 0.541 ppc: 0.474 socket: 0.453 register: 0.448 graphic: 0.439 risc-v: 0.401 PID: 0.390 permissions: 0.344 boot: 0.343 TCG: 0.304 arm: 0.295 architecture: 0.286 mistranslation: 0.259 VMM: 0.225 peripherals: 0.224 kernel: 0.217 user-level: 0.211 hypervisor: 0.176 virtual: 0.127 KVM: 0.117 assembly: 0.082 Qemu 4.0.0-rc3 COLO Primary Crashes with "Assertion `event_unhandled_count > 0' failed." Hello Everyone, Now with Qemu 4.0.0-rc3, COLO is finally working so I gave it a try, but the Primary is always crashing during Network use. Typing fast in ssh or running "top" with 0.1 second delay (change with 'd') reliably trigger the crash for me. I use the attached scripts to run Qemu, in my case both primary and secondary run on the same Host for testing purposes. See the files in the attached .tar.bz2 for more Info, they also contain a Coredump. Regards, Lukas Straub Configure CMDline: ./configure --target-list=x86_64-softmmu,i386-softmmu --enable-debug-info https://lists.nongnu.org/archive/html/qemu-discuss/2019-04/msg00026.html There is a Patch available which fixes this bug: https://lists.nongnu.org/archive/html/qemu-devel/2019-04/msg03497.html Fix applied to qemu 4.1