Hi, any news about this? Can I provide any additional info since it might be a Mac issue. Thanks
-- You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. https://bugs.launchpad.net/bugs/1867786 Title: Qemu PPC64 freezes with multi-core CPU Status in QEMU: New Bug description: I installed Debian 10 on a Qemu PPC64 VM running with the following flags: qemu-system-ppc64 \ -nographic -nodefaults -monitor pty -serial stdio \ -M pseries -cpu POWER9 -smp cores=4,threads=1 -m 4G \ -drive file=debian-ppc64el-qemu.qcow2,format=qcow2,if=virtio \ -netdev user,id=network01,$ports -device rtl8139,netdev=network01 \ Within a couple minutes on any operation (could be a Go application or simply changing the hostname with hostnamectl, the VM freezes and prints this on the console: ``` root@debian:~# [ 950.428255] rcu: INFO: rcu_sched self-detected stall on CPU [ 950.428453] rcu: 3-....: (5318 ticks this GP) idle=8e2/1/0x4000000000000004 softirq=5957/5960 fqs=2544 [ 976.244481] watchdog: BUG: soft lockup - CPU#3 stuck for 23s! [zsh:462] Message from syslogd@debian at Mar 17 11:35:24 ... kernel:[ 976.244481] watchdog: BUG: soft lockup - CPU#3 stuck for 23s! [zsh:462] [ 980.110018] rcu: INFO: rcu_sched detected expedited stalls on CPUs/tasks: { 3-... } 5276 jiffies s: 93 root: 0x8/. [ 980.111177] rcu: blocking rcu_node structures: [ 1013.442268] rcu: INFO: rcu_sched self-detected stall on CPU [ 1013.442365] rcu: 3-....: (21071 ticks this GP) idle=8e2/1/0x4000000000000004 softirq=5957/5960 fqs=9342 ``` If I change to 1 core on the command line, I haven't seen these freezes. To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/1867786/+subscriptions
