>>>> I'm trying to use the deterministic record/replay feature, and I would >>>> like to know which commit I should take to get it work. >>>> In RC0 it seems to be broken. I tried pre-MTTCG commit 2421f381dc, as >> >>> Can you retry with the latest rc? There were some fixes regarding rr since >>> rc0. >> >> >> I've taken 2.9 release, and RR does not seem to work there. >> I recorded the boot process of x86 Fedora-21 linux and the replay got >> stuck almost immediately. > > What's your command line? > > Does it get stuck at the same place each time? > > Can you boot fine with icount but without record/replay?
Here is the exact scenario: - Get 2.9 from git, configure it as follows: "./configure --target-list=i386-softmmu --enable-sdl" and make. - Download https://people.debian.org/~aurel32/qemu/i386/debian_squeeze_i386_standard.qcow2 - Run qemu with the following command line, until login prompt: -icount shift=7,rr=record,rrfile=replay.bin -drive file=debian_squeeze_i386_standard.qcow2,if=none,id=img-direct -drive driver=blkreplay,if=none,image=img-direct,id=img-blkreplay -device ide-hd,drive=img-blkreplay -monitor stdio - Replay: -icount shift=7,rr=replay,rrfile=replay.bin -drive file=debian_squeeze_i386_standard.qcow2,if=none,id=img-direct -drive driver=blkreplay,if=none,image=img-direct,id=img-blkreplay -device ide-hd,drive=img-blkreplay -monitor stdio Every time I attempt to replay, QEMU gets stuck at the same EIP, at a very early stage. > Can you boot fine with icount but without record/replay? Yes. I can also enable icount and recording - it also boots fine. The problem with the replay.
