Re: [Bug 1837049] Re: qemu-system-ppc segfaults with -display sdl

[Alex Bennée]

Andrew Randrianasulu <address@hidden> writes:

> I think this one is fixed, I can boot Lubuntu to desktop like this:
>
> qemu-system-ppc -cdrom /dev/shm/lubuntu-16.04-desktop-powerpc.iso -boot
> d -display sdl,gl=on -g 1024x768x32 -M mac99,via=pmu -cpu G4 -device
> ES1370 -m 2047 -accel tcg,tb-size=384 -device usb-mouse
>
> without any crash, tried few times.
>
> Note, tb-size seems to be important on 32-bit host now, near qemu 5.0.

There were changes this cycle to remove the TB size heuristic based on
guest RAM size. System emulation of 64 bit hosts gets a generous 1gb per
system by default where-as 32 bit hosts make do with a smaller code
buffer (which is statically allocated for user-mode).

See the commits around 600e17b2615 (pull-tcg-20200228)

>
> qemu-system-ppc --version
> QEMU emulator version 4.2.91 (v5.0.0-rc1-dirty)
> Copyright (c) 2003-2020 Fabrice Bellard and the QEMU Project developers
>
> -dirty probably because I reinstalled SDL2 (2.0.9- > 2.0.12 during
> compilation of qemu). I also have different glibc this time (2.30
> instead of 2.23)


-- 
Alex Bennée