Date: Sun, 31 Mar 2024 00:24:13 +0000 From: bugzilla-noreply@freebsd.org To: virtualization@FreeBSD.org Subject: [Bug 278058] Simultaneous use of Bhyve AND vnet on network PCI devices causes network failure Message-ID: <bug-278058-27103@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D278058 Bug ID: 278058 Summary: Simultaneous use of Bhyve AND vnet on network PCI devices causes network failure Product: Base System Version: 14.0-RELEASE Hardware: amd64 OS: Any Status: New Severity: Affects Some People Priority: --- Component: bhyve Assignee: virtualization@FreeBSD.org Reporter: mark@markmcb.com This is a more specific report that follows PR 273372 [1] and a forum post = [2]. Simultaneous use of vnet and byhve will cause networking networking to fail= if both are used on PCI hardware devices. Setup: 2 SR-IOV VFs created from a capable card (the vendor doesn't matter, I've tried Intel, Chelsio, and Mellanox). Fail Scenario: 1 passed through to a bhyve guest (OS doesn't matter). 1 set= up with vnet for a jail. About 90 seconds after both are running, networking d= ies. Only console access is possible. Non-Fail Scenario: 2 byhve guests setup. 1 VF passed to each. One of the gu= ests is FreeBSD, and in that guest give the network device to a jail and set it = up with vnet. No problems. Also Non-Fail: Any number of bhyve passthrough devices OR any number of vnet jails using VFs. Alone they work just fine. It's only when together there i= s an issue. There appears to be a conflict between byhve and vnet when both are in use = "on the same level," but if you separate them with a layer virtualization, no issues arise. 1. https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D273372 2. https://forums.freebsd.org/threads/pci-passthrough-of-vfs-crash-host-card-i= f-jails-bhyve-in-use.92409/ --=20 You are receiving this mail because: You are the assignee for the bug.=
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