From nobody Sun Dec 07 13:00:21 2025 X-Original-To: bugs@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4dPQFd6NjWz6KPqV for ; Sun, 07 Dec 2025 13:00:21 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "R12" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4dPQFd5sFFz3S89 for ; Sun, 07 Dec 2025 13:00:21 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1765112421; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=+WYNZVkYRAkvn5tOaSPi7iuOpu2NlZvpn2jTGF8Wg90=; b=FdcPA2Cfdk8TPDzREirW0deVle28Ylb9A2dxlqcVz+uy+azMkeICsUqacLs+472f9B4yo8 MOm05XO/JhV0HKPB2WL/lRvaiHncZY0Homq4aWDyvj3lt875VGv5pgH2WDPRp+YDFv3hW5 9B98oKKeNREo43K1UvX2itakNRvd7eLRB7veh+hV+VOueJQbfyjodDjszRn6hQ0S3gMI6R hAJ3TzHPSfPlKdH6Aq3+M39zkRnZxIqqLr0c7tsKIEhgML6rjnvr5beAaK/QL0e2f1XjkF 1mSGHh5azN2SscIVy0YiOAuulVu1YWu2XB4n0FaHWHEPdNUBABs4pFRKRXh/ig== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1765112421; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=+WYNZVkYRAkvn5tOaSPi7iuOpu2NlZvpn2jTGF8Wg90=; b=HoThs1KFm0hoBT5eCjEwFROgJi5FU686plB9J7qMxLid4OhH0ozHWd6K/J7sc/n1hoCKy4 BILLbSvPEHQHr6wmA3OooEIUc/o30DLdRbC1re1HoPS3nYFmw1jdXaXv3TLlLMXTW6/NcU d2k9q9unHAw8GQczORqYlEbGr/N6aHDtY6QGAYkhuUxIEI6puNa4sO6c6MwtmGldwzisMr 2y+U2mqMBlkOzxK6CeSSnyi+QaAF9QObAtAdg2lnz8V6/rjXcydv/Cm5bcZ62IYmmnAFkw FniPqrLRCfNP3fSB99AG6pt0K9v2ejKxCiObPM70T9J290o98TYm2HMxQljt6A== ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1765112421; a=rsa-sha256; cv=none; b=mdgoAWGcKezOhLnP/3HlK3AKGLS4AbLKil9oCjMOtIo8daLipLwRWsrQlLyii/lWI6JXbR Uvj6hHpxvfnIlZ6ZPtVYrbq202++OVzrZWCEDdzZPIK9VQEIS6IfIWg40RWzh/Rhcxhl60 J0pfEqL5cg0yMhU4oGByhToDMwPEzdCDUIBwc0kUjNa3/9V/cdhpXw+zz0GdxgXMh78GZ4 EuYIvUljluXhLHMrc7pzN+tW+dXlPY4wRnFxlMK7gpl4G7p8b3dLQWgJ7B85v0W6Wi++uq qbhJwC+oS2ga8Ch/Jtv6xXTzKSI/sAnM0hd2/0lPMASqBzWKf+bZ1+FOu7KPwg== ARC-Authentication-Results: i=1; mx1.freebsd.org; none Received: from kenobi.freebsd.org (kenobi.freebsd.org [IPv6:2610:1c1:1:606c::50:1d]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 4dPQFd5BKSzk59 for ; Sun, 07 Dec 2025 13:00:21 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org ([127.0.1.5]) by kenobi.freebsd.org (8.15.2/8.15.2) with ESMTP id 5B7D0LAN071084 for ; Sun, 7 Dec 2025 13:00:21 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 5B7D0LrK071083 for bugs@FreeBSD.org; Sun, 7 Dec 2025 13:00:21 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 291459] bhyve PCI passthrough (ppt) resets device with pending transactions on 15.0-RELEASE - regression from 14.3 Date: Sun, 07 Dec 2025 13:00:21 +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: 15.0-RELEASE X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Only Me X-Bugzilla-Who: christian@hofstede.de 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=3D291459 Bug ID: 291459 Summary: bhyve PCI passthrough (ppt) resets device with pending transactions on 15.0-RELEASE - regression from 14.3 Product: Base System Version: 15.0-RELEASE Hardware: amd64 OS: Any Status: New Severity: Affects Only Me Priority: --- Component: kern Assignee: bugs@FreeBSD.org Reporter: christian@hofstede.de After upgrading from FreeBSD 14.3-RELEASE-p6 to 15.0-RELEASE, PCI passthrou= gh of an Intel I210 NIC to a bhyve guest fails. The device works correctly for 1-4 minutes after VM boot, then becomes unresponsive. The guest loses all connectivity on the passthrough interface. Rolling back to 14.3-RELEASE-p6 via bectl immediately resolves the issue. This configuration worked flawlessly on 14.x. ## Host message during failure pci0:1:0:0: Resetting with transactions pending after 50 ms ## Hardware Intel I210 (igb driver when not passed through) ## Host configuration /boot/loader.conf: pptdevs=3D"1/0/0" hw.vmm.iommu.enable=3D"1" hw.pci.enable_msix=3D"1" hw.pci.enable_msi=3D"1" vmm_load=3D"YES" bhyve VM config (relevant parts): passthru0=3D"1/0/0" ## dmesg showing device ppt0 port 0xe000-0xe01f mem 0xdf500000-0xdf51ffff,0xdf520000-0xdf523fff irq= 16 at device 0.0 on pci1 ## Guest FreeBSD-based, device appears as igb0 inside guest. ## Reproduction 1. Configure Intel I210 for passthrough with pptdevs 2. Boot bhyve guest with passthru0 pointing to device 3. Pass traffic through the device 4. Wait 1-4 minutes 5. Device stops responding, host logs "Resetting with transactions pending" ## Workaround Rollback to FreeBSD 14.3-RELEASE-p6 resolves the issue completely. --=20 You are receiving this mail because: You are the assignee for the bug.=