Here is a way I tried to replicate in a more isolated environment: # mmdebstrap --variant minbase --include qemu-system-x86 unstable rootfs-unstable # chroot rootfs-unstable (chroot)# qemu-system-x86_64 --version QEMU emulator version 9.0.2 (Debian 1:9.0.2+ds-4) Copyright (c) 2003-2024 Fabrice Bellard and the QEMU Project developers (chroot)# qemu-system-x86_64 -netdev bridge,id=n1 - Locks up
# mmdebstrap --variant minbase --include qemu-system-x86 stable rootfs-stable # chroot rootfs-stable (chroot)# qemu-system-x86_64 --version QEMU emulator version 7.2.11 (Debian 1:7.2+dfsg-7+deb12u6) Copyright (c) 2003-2022 Fabrice Bellard and the QEMU Project developers (chroot)# qemu-system-x86_64 -netdev bridge,id=n1 qemu: module ui-ui-gtk not found, do you want to install qemu-system-gui package? qemu: module ui-ui-sdl not found, do you want to install qemu-system-gui package? failed to parse default acl file `/etc/qemu/bridge.conf' qemu-system-x86_64: -netdev bridge,id=n1: bridge helper failed - The error is expected On Sat, Aug 17, 2024 at 7:52 AM bblinux <bblinux2...@gmail.com> wrote: > > Did you try to reproduce it on Debian unstable? I tried 3 different > computers (Lenovo desktop, Dell desktop and laptop). All of them run > the latest Debian unstable with Linux 6.10.4-1 kernel. All of them > behave the same. Architecture doesn't matter. I tried > qemu-system-i386, qemu-system-x86_64-microvm and qemu-system-armhf. > When it locks up, a single CPU is at 100% until I kill the process. I > also tried qemu 1:9.1.0~rc0+ds-3 from experimental. I doesn't work > either. > > On Sat, Aug 17, 2024 at 4:13 AM Michael Tokarev <m...@tls.msk.ru> wrote: > > > > Control: tag -1 + unreproducible > > > > Hm. > > > > I can't reproduce this issue. > > I did a rebuild of qemu on bookworm though, but it is really > > unlikely current unstable is different in this context. > > > > When you said it worked before, how did it work, - were there > > some messages on the tty or some other indication of its > > "working" state? > > > > For me, there's basically no difference between 8.2.* and 9.0.2-4, > > both works the same way - be it -netdev bridge or -netdev tap. > > With or without qemu_bridge_helper. > > > > # qemu-system-x86_64 -netdev tap,id=n1 -display none -monitor stdio > > QEMU 9.0.2 monitor - type 'help' for more information > > qemu-system-x86_64: warning: netdev n1 has no peer > > (qemu) info version > > 9.0.2Debian 1:9.0.2+ds-4~bpo12+1 > > (qemu) q > > > > (hmm, apparently it needs a space before Debian in version, > > but it is a different issue). > > > > Thanks, > > > > /mjt
