https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=215972
--- Comment #9 from Peter Grehan <[email protected]> --- Insta-repro for me on a Ryzen 1700. Happens almost immediately on install with >= 2 vCPUs, and the more configured, the faster the freeze. Single vCPU install is reliable, and I've been able to get occasional long uptimes with server sku's and 2 vCPUs. I also see cases where it's only some vCPUs that are stuck at 100% - sometimes 2, with the remainder idle. The RIPs of the spinning vCPUs are generally constant, indicating a lock-spin or similar. To debug further with Windows, it probably needs the Windows kernel debugger to be hooked up, and then trapped into once the spin is seen. However, I can repro this doing a FreeBSD buildworld with >= 12 vCPUs. It takes a lot longer (~20 mins) but seems to be reliable. Backtraces in ddb seem to show a missed IPI while holding a spinlock, which eventually blocks the entire system. -- You are receiving this mail because: You are the assignee for the bug. _______________________________________________ [email protected] mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-virtualization To unsubscribe, send any mail to "[email protected]"
