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Wed, 10 Sep 2025 14:58:45 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 58AEwjpE000792 for bugs@FreeBSD.org; Wed, 10 Sep 2025 14:58:45 GMT (envelope-from bugzilla-noreply@freebsd.org) X-Authentication-Warning: kenobi.freebsd.org: www set sender to bugzilla-noreply@freebsd.org using -f From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 289434] 16-current in bhyve: sysctl: debug.kdb.current=gdb: Invalid argument Date: Wed, 10 Sep 2025 14:58:45 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: new X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: kern X-Bugzilla-Version: 16.0-CURRENT X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Some People X-Bugzilla-Who: cracauer@cons.org X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: bugs@FreeBSD.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: bug_id short_desc product version rep_platform op_sys bug_status bug_severity priority component assigned_to reporter Message-ID: Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="UTF-8" X-Bugzilla-URL: https://bugs.freebsd.org/bugzilla/ Auto-Submitted: auto-generated List-Id: Bug reports List-Archive: https://lists.freebsd.org/archives/freebsd-bugs List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-bugs@FreeBSD.org MIME-Version: 1.0 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D289434 Bug ID: 289434 Summary: 16-current in bhyve: sysctl: debug.kdb.current=3Dgdb: Invalid argument Product: Base System Version: 16.0-CURRENT Hardware: amd64 OS: Any Status: New Severity: Affects Some People Priority: --- Component: kern Assignee: bugs@FreeBSD.org Reporter: cracauer@cons.org If you: - take 16-current as of today - inside bhyve on AMD64 - compile the GENERIC kernel without changes (which includes OPTION gdb) - reboot into that kernel - do sysctl to switch to GDB you get=20 sysctl: debug.kdb.current=3Dgdb: Invalid argument Nothing in dmesg. Here is my byhyve start command: bhyve \ -G 1234 \ -c 16 -m 16G \ -A -H -P \ -s 0,hostbridge \ -s 1,lpc \ -s 3,virtio-net,tap0 \ -s 4,virtio-blk,root2.raw \ -s 5,virtio-blk,FreeBSD-14.1-RELEASE-amd64-ufs.raw \ -l com1,stdio \ -l bootrom,/usr/local/share/uefi-firmware/BHYVE_UEFI.fd \ fbdbg The host is also 16-current, a few days old. amd64 --=20 You are receiving this mail because: You are the assignee for the bug.=