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Sat, 30 May 2026 22:42:00 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 273372] SR-IOV Networking in Bhyve Causes Chelsio T520-SO-CR to Fail on Host, Kernel Panic if Reset Date: Sat, 30 May 2026 22:41:58 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: kern X-Bugzilla-Version: 14.0-STABLE X-Bugzilla-Keywords: bhyve, crash X-Bugzilla-Severity: Affects Some People X-Bugzilla-Who: mark@markmcb.com X-Bugzilla-Status: Open X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: virtualization@FreeBSD.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: 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 List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D273372 --- Comment #15 from Mark McBride --- (In reply to Mark Linimon from comment #12) I still see problems in 15.1-RC1. If it works fine for others, I'm guessing it's something specific to the processor or motherboard (Supermicro X12STH-F with Xeon E-2324G). The general case remains true:=20 jails OR bhyve using VFs =3D success jails AND bhyve using VFs =3D fail No issues on the same platform with Linux VMs and LXD side-by-side, so I kn= ow the system is capable. No issues if I do everything with a bridge. It's specific to the combination of passthrough and non-passthrough VFs in use at the same time. I don't think heat is the issue either. Temps look normal. And as noted, wh= en I use only jails or only VMs, the VFs work just fine. Issue exists with Intel, Chelsio, and Mellenox cards, though the precise failure symptoms vary with each (and for this iteration I only tried with I= ntel and Chelsio). --=20 You are receiving this mail because: You are the assignee for the bug.=