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Wed, 8 Oct 2025 19:47:59 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 598JlxQW061322 for virtualization@FreeBSD.org; Wed, 8 Oct 2025 19:47:59 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: virtualization@FreeBSD.org Subject: [Bug 290098] bhyve crashes when trying to run a 9front VM Date: Wed, 08 Oct 2025 19:47:59 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: new X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: bhyve X-Bugzilla-Version: 15.0-STABLE X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Some People X-Bugzilla-Who: bakul@iitbombay.org X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: virtualization@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: Discussion List-Archive: https://lists.freebsd.org/archives/freebsd-virtualization List-Help: List-Post: List-Subscribe: List-Unsubscribe: X-BeenThere: freebsd-virtualization@freebsd.org Sender: owner-freebsd-virtualization@FreeBSD.org MIME-Version: 1.0 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D290098 Bug ID: 290098 Summary: bhyve crashes when trying to run a 9front VM Product: Base System Version: 15.0-STABLE Hardware: Any OS: Any Status: New Severity: Affects Some People Priority: --- Component: bhyve Assignee: virtualization@FreeBSD.org Reporter: bakul@iitbombay.org The same 9front VM used to work fine on stable/14. The same issue occurs on amd64 as well as Intel platforms. This is what bhyve prints before dying: Assertion failed: (error =3D=3D 0), function modify_bar_registration, file /usr/src/usr.sbin/bhyve/pci_emul.c, line 706. fbuf frame buffer base: 0x1018ff800000 [sz 33554432] The same VM when started from a stable/14 machine works (albeit starts up m= uch slower since the VM files are on an NFS mount). I see a number of changes to pci_emul.c (comparing git log of stable/14 and stable/15) that may have a bearing on this. Some people have reported this even happens when you try to create a new VM using 9front installation. --=20 You are receiving this mail because: You are the assignee for the bug.=