>> ./qemu-system-i386 -cdrom alpine.iso --accel tcg,thread=multi I tried both, with -smp 4 and without..
In stable Qemu release, there is just a guest kernel panic, in v4.0.0-rc3-dirty, there is also Illegal instruction error reported > on an x-gene system, compiled for aarch32. Yes, this should be Raspberry Pi 3, but I am not sure. Anyway, I can test this in one week when I receive one of those boards. >Just so we're clear, which raspberry pi revision are you using? >Based on comments I'm assuming pi 2, with the 4 core cortex-a7. I am using Raspberry Pi 2, 4 cores, not sure where is the difference between cortex-a7 and ARMv7, in my case it is just ARMv7. -- You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. https://bugs.launchpad.net/bugs/1824768 Title: Qemu ARMv7 TCG MultiThreading for i386 guest doesn't work Status in QEMU: Incomplete Bug description: Using any Linux image (in this case Alpine Linux iso) I want to utilise all cores of my Raspberry with --accel,thread=multi. I know there is a probably still problem with memory ordering of the host, but I have also seen some very old commits which could potentially help with it. But anyway, with version qemu-i386 version 3.1.0 (Debian 1:3.1+dfsg-7) I can see OpenRC starting up services and then the kernel crash. With version QEMU emulator version 3.1.93 (v4.0.0-rc3-dirty) The whole machine crash with this error: Illegal instruction Using command: ./qemu-system-i386 -cdrom alpine.iso --accel tcg,thread=multi Full Console Output: qemu-system-i386: warning: Guest expects a stronger memory ordering than the host provides This may cause strange/hard to debug errors Illegal instruction Kernel: Linux raspberrypi 4.14.98-v7+ #1200 SMP Tue Feb 12 20:27:48 GMT 2019 armv7l GNU/Linux CPU: ARMv7 Processor rev 5 (v7l) Features: half thumb fastmult vfp edsp neon vfpv3 tls vfpv4 idiva idivt vfpd32 lpae evtstrm 4 cores To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/1824768/+subscriptions
