Date: Tue, 14 Apr 2026 11:49:10 +0000 From: bugzilla-noreply@freebsd.org To: virtualization@FreeBSD.org Subject: [Bug 294516] bhyve(8): serial console is resized to abysmal size after upgrade 14.4-STABLE Message-ID: <bug-294516-27103@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=294516 Bug ID: 294516 Summary: bhyve(8): serial console is resized to abysmal size after upgrade 14.4-STABLE Product: Base System Version: 14.4-STABLE Hardware: Any OS: Any Status: New Severity: Affects Some People Priority: --- Component: bhyve Assignee: virtualization@FreeBSD.org Reporter: michaelo@FreeBSD.org Upgraded host to: FreeBSD deblndw013x.innomotics.net 14.4-STABLE FreeBSD 14.4-STABLE 818243722 GENERIC amd64 running bhyve via vm-bhyve: # cat kinexon.conf loader="uefi" uefi_vars="yes" graphics="yes" graphics_res="1280x1024" graphics_listen="127.0.0.1" xhci_mouse="yes" cpu="8" memory="16G" network0_type="virtio-net" network0_switch="VL-G-DE-SP02-4181" disk0_type="nvme" disk0_name="disk0.img" uuid="291fed2d-71d4-11f0-8490-b499bac04fbe" network0_mac="58:9c:fc:09:5e:14" bhyve_options="-K de -o system.serial_number=CZ3139VJ30KNXE" fwcfg="qemu" When I try to attach to the serial console via null modem "vm console kinexon" the PuTTY terminal window is resized beyond good and evil. I can't find anything related to a behavior change in https://www.freebsd.org/releases/14.0R/relnotes/ See video of the behavior: https://people.freebsd.org/~michaelo/bhyve/bhyve-putty-resize.mp4 bhyve input: 2026-04-14T13:40:27+02:00: [bhyve options: -c 8 -m 16G -AHPw -l bootrom,/usr/local/share/uefi-firmware/BHYVE_UEFI.fd,/usr/local/bhyve/kinexon/uefi-vars.fd -K de -o system.serial_number=CZ3139VJ30KNXE -U 291fed2d-71d4-11f0-8490-b499bac04fbe -u] 2026-04-14T13:40:27+02:00: [bhyve devices: -s 0,hostbridge -s 31,lpc,fwcfg=qemu -s 0:4:0,nvme,/usr/local/bhyve/kinexon/disk0.img -s 0:5:0,virtio-net,tap1,mac=58:9c:fc:09:5e:14 -s 0:6:0,fbuf,tcp=127.0.0.1:5901,w=1280,h=1024 -s 0:7:0,xhci,tablet] 2026-04-14T13:40:27+02:00: [bhyve console: -l com1,/dev/nmdm-kinexon.1A] -- You are receiving this mail because: You are the assignee for the bug.home | help
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