https://patchew.org/QEMU/20190805180332.10185-1-peter.mayd...@linaro.org/ is a patch which I think probably fixes this bug -- could you test it? (I don't have an x86 vm with node.js in it to test with.)
-- You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. https://bugs.launchpad.net/bugs/1832281 Title: tcg bug master / 4.0.0 v8 operation >>> and |= Status in QEMU: New Bug description: vm guest is linux, executed with tcg running this Node.js snippet leads to $ node > a = undefined undefined > a >>> 0 4294967295 host node $ node > a = undefined undefined > a >>> 0 0 same with |= node Welcome to Node.js v12.4.0. Type ".help" for more information. > let buffer undefined > buffer |= 0 0 vm with tcg: $ ./out/Release/node --version v12.4.0 ./out/Release/node -e "let buffer; buffer |= 0; console.log(buffer);" -1 vm guest is debian x86_64 latest release vm guest is started with ./x86_64-softmmu/qemu-system-x86_64 -vnc :0 -cdrom debian-9.9.0-amd64-netinst.iso -m 4G -smp cores=6,threads=1,sockets=1 -nic user,hostfwd=tcp:ipv4addr:2233-:22 -cpu qemu64 debian.img git tag v4.0.0 and master, commit a578cdfbdd8f9beff5ced52b7826ddb1669abbbf, for building qemu-system- x86_64 was used. Node.js is compiled on the vm guest (v12.4.0 / master) see also https://github.com/nodejs/node/issues/19348#issuecomment-500465502 I need further assistance to track down the cause of the bug. Kind regards Manuel To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/1832281/+subscriptions
