Date: Sun, 02 Nov 2025 09:39:22 +0000 From: bugzilla-noreply@freebsd.org To: virtualization@FreeBSD.org Subject: [Bug 290735] bhyve resume hangs Message-ID: <bug-290735-27103@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=290735 Bug ID: 290735 Summary: bhyve resume hangs Product: Base System Version: CURRENT Hardware: Any OS: Any Status: New Severity: Affects Only Me Priority: --- Component: bhyve Assignee: virtualization@FreeBSD.org Reporter: novel@FreeBSD.org I'm trying to use suspend/resume in bhyve. I use FreeBSD 16.0-CURRENT #0 main-n280778-f45608124286 as a host and Ubuntu 25.10 as a guest. I run the guest using: bhyve -c 2 -m 4096 -S -A -I -u -H -P -s 0:0,hostbridge -l bootrom,/usr/local/share/uefi-firmware/BHYVE_UEFI.fd -s 1:0,lpc -s 7:0,virtio-blk,/data/img/ubuntu2510.img -s 5:0,fbuf,tcp=127.0.0.1:5957 ubuntu2510 I can verify that the guest works fine, i.e. I can attach to it by VNC and use it as expected. Then I suspend it using: bhyvectl --suspend=/var/run/libvirt/bhyve/ubuntu2510 --vm ubuntu2510 That also works as expected. Then I try to resume it using: bhyve -r /var/run/libvirt/bhyve/ubuntu2510 -c 2 -m 4096 -S -A -I -u -H -P -s 0:0,hostbridge -l bootrom,/usr/local/share/uefi-firmware/BHYVE_UEFI.fd -s 1:0,lpc -s 7:0,virtio-blk,/data/img/ubuntu2510.img -s 5:0,fbuf,tcp=127.0.0.1:5957 ubuntu2510 At this point VM freezes. I can connect to VNC, but it only seems to display the last frame of the previous session, it doesn't react to any inputs. I also don't see anything on stderr or stdout from bhyve(8). When I do: truss -p $bhyvepid I see that it cycles through: ioctl(7,VM_RUN,0x2a80700efda8) = 0 (0x0) When in this state I destroy the VM, truss prints out the following before exiting: ioctl(7,VM_RUN,0x643205adda8) = 0 (0x0) ioctl(7,VM_RUN,0x64320a9eda8) ERR#6 'Device not configured' ioctl(7,VM_RUN,0x643205adda8) ERR#6 'Device not configured' write(2,"vm_run error -1, errno 6\n",25) = 25 (0x19) _umtx_op(0x2df9dae5f488,UMTX_OP_MUTEX_WAKE2,0x0,0x0,0x0) = 0 (0x0) _umtx_op(0x2df9dae5f488,UMTX_OP_MUTEX_WAIT,0x0,0x0,0x0) = 0 (0x0) write(2,"vm_run error -1, errno 6\n",25) = 25 (0x19) _umtx_op(0x641ced8c6a8,UMTX_OP_WAKE_PRIVATE,0x7fffffff,0x0,0x0) = 0 (0x0) _umtx_op(0x641ced8c6a8,UMTX_OP_WAIT_UINT_PRIVATE,0x3,0x0,0x0) = 0 (0x0) write(1,"fbuf frame buffer base: 0x643196"...,165) = 165 (0xa5) <thread 805176 exited> <thread 805175 exited> <thread 805180 exited> <thread 805178 exited> <thread 805177 exited> <thread 805179 exited> <thread 805174 exited> <thread 805172 exited> <thread 805171 exited> <thread 805173 exited> <thread 804987 exited> <thread 805187 exited> _exit(0x4) process exit, rval = 4 In bhyve output I can see after that: Unhandled ps2 mouse command 0x0a Unhandled ps2 mouse command 0x01 Unhandled ps2 mouse command 0x41 Unhandled ps2 mouse command 0x88 vm_run error -1, errno 6 vm_run error -1, errno 6 fbuf frame buffer base: 0x64319600000 [sz 33554432] Pausing pci devs... Restoring vm mem... ^M Restoring pci devs... Restoring kernel structs... Resuming pci devs... -- You are receiving this mail because: You are the assignee for the bug.home | help
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