From nobody Mon Jul 6 05:04:22 2026 X-Original-To: virtualization@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 4gtsj21t19z6kVYJ for ; Mon, 06 Jul 2026 05:04:22 +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 "YR1" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 4gtsj2176Cz426v for ; Mon, 06 Jul 2026 05:04:22 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1783314262; 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: in-reply-to:in-reply-to:references:references; bh=iGPNr+NylGwoH8FhL0rbrrkNCuoO/Jq7xRz/BeceLuc=; b=H7w7n78pM12LqOZaQHRvNmNo0ywqbGyNKOH1CTl/Ak1drvpoZnZos321V57Fr6bhX5yY5E zR1Te6Y0Xx0TkeDUj5A+P/TmMIuKzW2nNEFWR8cxSf3VVg9bm+Ynrh0vDvYma34pyzVZfg bShXtZbKaKJUePVMDii60bjSykJ65yEPcWPUbcaGAbyCToOtFX0jxrkOKDqPzNdejRDcmR s0r3hf9UKur5trSsnUa/hudHOAToqVV6DJx77XRPEVoCFhEISIVUHyxhfO06/Xjl5y+ILW Xo8vLcGysqFF3F532+VwH/F9NtLUJnBT9Z4qnpnrtGsRfvBbTjmbv2fO3PP6FQ== ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1783314262; a=rsa-sha256; cv=none; b=jV+I4inL9k7BqEJ4rykoVsWgE1m7K+RA1rUr3U4eI7cVrUv4yqFrN2UKlb9yYvbEwG/xNw YZWlmsUYvwuvATu9PyZTSYcBzM4m74RYoO4RRaMfZm2TAPi8e/NVGgBZQMDbxcvMEbFXG9 bv+BH2jpyABHQSHISvM5PZi5tjfwUrsIQABp4iWRkvYYHW6UTCM8IaWJpNhP+CLfWdfVbe l1IrGmoKba323j2ydbD5zIjBp+EnpYZzgACliyR8GWb1fpvsj4mugMNrs2c767EEbNwfQw W/wyM3SrfMlSSoJ7eFejnSO7x5KUAVqVJJq6aZm7p+EuRwGROE7K3EkimDCibQ== ARC-Authentication-Results: i=1; mx1.freebsd.org; none ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1783314262; 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: in-reply-to:in-reply-to:references:references; bh=iGPNr+NylGwoH8FhL0rbrrkNCuoO/Jq7xRz/BeceLuc=; b=k14n1XxDBkGmMgAhtkjnkU7mQIrqO1B+Ug9R0QTpRFpATIgSuGsh+uBdo0sSfoSaHX5fWL dsodqSbMzg/u9/UQ0JXHqdARdj6j2gbCVj5EFZyWkbF4twsXAza8pYufCgyx0fBoVbLh5Y KJSrMdPRWHzPBAC7G58axubyKKe3dDfF9nftjL5KonvJyQDpfvoV4pLFpoAusrcYre/qXB sJ5KIZbz9zv2qYSIPJvrf2dmEkqVQRuyO5lLLW12NY7A15xxxUTHkiR2u5emDkPksJIEIY f9EVZYhP8j/KH+hfumMCrJ1jQzhpYBnkRxFmzqfIQpZAY1jVIKzMq2z713NpLA== 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 4gtsj205l2zr7P for ; Mon, 06 Jul 2026 05:04:22 +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 66654Lw0084935 for ; Mon, 6 Jul 2026 05:04:21 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 66654LoE084934 for virtualization@FreeBSD.org; Mon, 6 Jul 2026 05:04:21 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: virtualization@FreeBSD.org Subject: [Bug 286893] Cold boot panic (as virtual machine under VirtualBox v7.1.6/MS Windows 10): sleeping thread holds Giant Date: Mon, 06 Jul 2026 05:04:22 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: bin X-Bugzilla-Version: 14.2-RELEASE X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Only Me X-Bugzilla-Who: linimon@FreeBSD.org X-Bugzilla-Status: Closed X-Bugzilla-Resolution: Overcome By Events X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: virtualization@FreeBSD.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: resolution bug_status 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=3D286893 Mark Linimon changed: What |Removed |Added ---------------------------------------------------------------------------- Resolution|--- |Overcome By Events Status|Open |Closed --=20 You are receiving this mail because: You are the assignee for the bug.= From nobody Mon Jul 6 08:32:36 2026 X-Original-To: virtualization@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 4gtyL51GvWz6kphH for ; Mon, 06 Jul 2026 08:33:17 +0000 (UTC) (envelope-from lionelcons1972@gmail.com) Received: from mail-ej1-x62a.google.com (mail-ej1-x62a.google.com [IPv6:2a00:1450:4864:20::62a]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (2048 bits) client-digest SHA256) (Client CN "smtp.gmail.com", Issuer "WR4" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4gtyL34zgjz4QGj for ; Mon, 06 Jul 2026 08:33:15 +0000 (UTC) (envelope-from lionelcons1972@gmail.com) Authentication-Results: mx1.freebsd.org; dkim=pass header.d=gmail.com header.s=20251104 header.b=DwsoyukC; dmarc=pass (policy=none) header.from=gmail.com; spf=pass (mx1.freebsd.org: domain of lionelcons1972@gmail.com designates 2a00:1450:4864:20::62a as permitted sender) smtp.mailfrom=lionelcons1972@gmail.com; arc=pass ("google.com:s=arc-20260327:i=1") Received: by mail-ej1-x62a.google.com with SMTP id a640c23a62f3a-c1268f71572so525802666b.0 for ; Mon, 06 Jul 2026 01:33:15 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1783326793; cv=none; d=google.com; s=arc-20260327; b=BXL36o0lQ/mxtR+H+uNBrycg4LtRMdwf6VhJWd2PtjFb7bZ5Y8LbZlmxuNAl+BVvWx wTJUpvCnEAZI85wCA3OmJggQYuHy27gcTKJkKtaUMl7SZsXKMwVGeyEqPMgEI12e15z3 Lu2zzJ4gLFjMpeGjq4aLaaHhz6YKPxSDlcQAUaBvFNm9WNlUZKzgvYVxH3Hfs1oiwSH5 ybPDFUappdRpIKKg90EG8yep7wn9tPasbHpC1Zi6cySmC/4PfuCtYlVdupXWhHFbhi0V gqggJB8VtKEcIpJZpWezek/e65vGLXwy8ywURt4W6eR6+2Ej+INh2CKqi0qNqGfcfic/ q+1A== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20260327; h=content-transfer-encoding:to:subject:message-id:date:from :in-reply-to:references:mime-version:dkim-signature; bh=t55/y/JqqNtJC+4B7n4cEQbgdGuDN19qvf/CFNBVbY8=; fh=XXi9BVSdwT45UECkNTrBAWaKJXJCTCMEbp+obhN7eXQ=; b=TygqDKBq6U8tjfDkurMz/GoUQEh7EPlzB0bP2cLvFc6z9z4gyZvLiz6lbyLfF4+PkM 7PtD+WjpnWVFL4BwRMYBGXlJUMYaFv4dTwFuDKbnEQ5voRWa4+5gql8y+NGZMOAjIg9x ezSIon621TcZbfiKiyp+5El+ZMWvJy5BHL+U7FsoMOWS7+T6Xk8WFnXRojK5HcY2+w7S GLgksbjUiI9VNyFQpFXVe7aTLnyJPxAqW17tGRLogMzdI5ITL0WE1nMdSNeYmCGwA5xX M+ajDS5tsPoxu5nLyM8ti9f6mkXVFSUS/HqOhOOn9jlDPk8eb6D1NlRm+dAh4OAgU5Fq f61A==; darn=freebsd.org ARC-Authentication-Results: i=1; mx.google.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20251104; t=1783326793; x=1783931593; darn=freebsd.org; h=content-transfer-encoding:to:subject:message-id:date:from :in-reply-to:references:mime-version:from:to:cc:subject:date :message-id:reply-to; bh=t55/y/JqqNtJC+4B7n4cEQbgdGuDN19qvf/CFNBVbY8=; b=DwsoyukCipMSKkGJv0UIdyewhvZ+bwtB1OJ2slcXwhvB+oz0AgsHpyrZb5gDCffZ2Q hqMKhT+SUtia+Vgp5vrH4tVae7w7YzGYobY9qKlDQaUcvYP7q5WMjXLxT6LokzSfUSP/ VZjjbeqgxN5aHcHI/3FQaMGD5/AAPqT5Mki4dYKu6LAZq/K4bBnAX7ddyaN02EKxTJU3 rmNe2A1YXEGcth2efoNtn9z4Te0KkugMvLzG7fnTgBvLVFUiprzjQH1MB20MUrT+ICnj 1QBoBaRT7BmSP9hwbfJWiNJUX415tfdfYB0Pqw/Wm3hws3ga2v1ujDrKekLO5AimLKdl lZ8Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1783326793; x=1783931593; h=content-transfer-encoding:to:subject:message-id:date:from :in-reply-to:references:mime-version:x-gm-gg:x-gm-message-state:from :to:cc:subject:date:message-id:reply-to; bh=t55/y/JqqNtJC+4B7n4cEQbgdGuDN19qvf/CFNBVbY8=; b=Jf34XLlheT/F9121bByRwY3quddvmTbeWRNPqRbqljnuKtRIrALpVdBIDZysoi7Keu Fd1doz5K+h9sqL3GcI0ALz5VnuKQWy3lVZoMA+mTdMoir2zRRVlLyTs1o6XVpN9qFFQ+ u7mrbZx04DQVb5UNLimkk/PYe898jgkBD/Xd8a13iTwKvL3RaITtYwDDQwCgezChJwts ZtxExdvORVfe6PxAnEk4WJNhCy2QoIb5bXDDJr7LElKTgrbX+qGfk4tTtUyPLG63pIdM +G12zcjWpxCt+okZUAnybWuVBrnx1pH3kfmbzvprDd60qO5G9REJ3hYtI/FRzt09CCpq 4nuQ== X-Gm-Message-State: AOJu0YyK5g0mP6RiDR6dgN8576j77qUwVA/wvlsrsjEgpIFo34PSIOPc 4BZeTT+S2O2sl/3cFSSEm1FAbQu4zD50B3dltH2DrekN8P5Vo4IbvdnRlqoacl27Zk8Mb6kaiEI YLvwhu8wMh5wSRiBz3LrxsZ/dx1Yuv/Lf1oXI X-Gm-Gg: AfdE7cmWa6i3CvW9Ver5Z14CyYfqAjR1AGlXzhaVgDD0r+3IFwldnXa5e5cyYXqxkqW CbbyJG3fmzqWN1zJCMsy2hJ14HVm8q+rSVCoE+WbTuKDJxbYtvL72lQIZZsbzOWXZy6GJ7kNo5S KpDooqQ1ORdy1zOzzRBUzsMef8vkjVOzIrnUHer8Ryerta0QoFMjpEBXgAeeOVjIwYly8eu6ZJ9 2h2Ki+AHmXrTjpq0wXsFzKxxKShzPAEx4534O/1NvR9Pd3A4HYV81OZBhhnsHpqScU/nC08E1Y= X-Received: by 2002:a17:907:1610:b0:c12:a9ad:68df with SMTP id a640c23a62f3a-c12c9ed001fmr551998766b.27.1783326792595; Mon, 06 Jul 2026 01:33:12 -0700 (PDT) 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 References: <912345r3-4r1p-644-9p95-pqp9896ns711@mnoonqbm.arg> <0C49DFF4-A571-4D8E-8DC7-685DC88F2F93@cs.huji.ac.il> In-Reply-To: From: Lionel Cons Date: Mon, 6 Jul 2026 10:32:36 +0200 X-Gm-Features: AVVi8CdcDkJBHstUlahOMj7a2Cl7lIcXeYItMxvfsOkzmsiTTdQe_jqmtdFq1_s Message-ID: Subject: Fwd: bhyve no longer doing netboot/ipxe To: virtualization@freebsd.org, freebsd-hackers Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Spamd-Result: default: False [-4.88 / 15.00]; ARC_ALLOW(-1.00)[google.com:s=arc-20260327:i=1]; NEURAL_HAM_LONG(-1.00)[-1.000]; NEURAL_HAM_MEDIUM(-1.00)[-1.000]; NEURAL_HAM_SHORT(-0.88)[-0.879]; DMARC_POLICY_ALLOW(-0.50)[gmail.com,none]; R_SPF_ALLOW(-0.20)[+ip6:2a00:1450:4864::/56:c]; R_DKIM_ALLOW(-0.20)[gmail.com:s=20251104]; MIME_GOOD(-0.10)[text/plain]; RCVD_TLS_LAST(0.00)[]; FROM_HAS_DN(0.00)[]; RCPT_COUNT_TWO(0.00)[2]; TO_DN_SOME(0.00)[]; MIME_TRACE(0.00)[0:+]; DWL_DNSWL_NONE(0.00)[gmail.com:dkim]; FREEMAIL_FROM(0.00)[gmail.com]; DKIM_TRACE(0.00)[gmail.com:+]; RCVD_COUNT_ONE(0.00)[1]; FREEMAIL_ENVFROM(0.00)[gmail.com]; TO_MATCH_ENVRCPT_SOME(0.00)[]; FROM_EQ_ENVFROM(0.00)[]; MISSING_XM_UA(0.00)[]; PREVIOUSLY_DELIVERED(0.00)[virtualization@freebsd.org]; MLMMJ_DEST(0.00)[virtualization@freebsd.org]; MID_RHS_MATCH_FROMTLD(0.00)[]; ASN(0.00)[asn:15169, ipnet:2a00:1450::/32, country:US]; RCVD_IN_DNSWL_NONE(0.00)[2a00:1450:4864:20::62a:from] X-Spamd-Bar: ---- X-Rspamd-Queue-Id: 4gtyL34zgjz4QGj Repost to too. On Sat, 4 Jul 2026 at 16:07, Daniel Braniss wrote: > > > > > On 4 Jul 2026, at 0:13, Bjoern A. Zeeb = wrote: > > > > On Wed, 1 Jul 2026, Daniel Braniss wrote: > > > >> after spending hours with several claude/google/etc which have too muc= h misinformation, > >> is there a right way to do ipxe boot which still works fine when the h= ost is 14.3 but no longer with 15.1 > >> thanks, > > > > See: > > > > https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D294520 > > > > the problem is that the way bhyve firmware is being built. > > > > -- > > Bjoern A. Zeeb r15:= 7 > > after many hours of trial and error this is now working: > debug=3D=E2=80=9Cyes" > loader=3D"uefi" > uefi_vars=3D"yes" > cpu=3D2 > memory=3D32G > virt_random=3D"yes" > network0_type=3D"virtio-net" > network0_switch=3D"public" > disk0_type=3D"virtio-blk" > disk0_name=3D"/dev/zvol/h/bhv-02" > disk0_dev=3D"custom" > uuid=3D"86b8741f-7764-11f1-8266-b8ca3aee713a" > network0_mac=3D"58:9c:fc:00:6c:88" > graphics=3D"yes" > graphics_res=3D"1024x768" > grafics_wait=3D"yes" > graphics_listen=3D"0.0.0.0:5901=E2=80=9D > > and changing the filename in my dhcp i can boot diskless or local root. > the efi partition is empty, so it=E2=80=99s getting the bootrom from /usr= /local/share/=E2=80=A6 > > from the logs: > 2026-07-04T16:54:49+03:00: restarting > 2026-07-04T16:54:49+03:00: [bhyve options: -c 2 -m 32G -AHPw -l bootrom,= /usr/local/share/uefi-firmware/BHYVE_UEFI.fd,/h/vm/bhv-02/uefi-vars.fd -U 8= 6b8741f-7764-11f1-8266-b8ca3aee713a -u] > 2026-07-04T16:54:49+03:00: [bhyve devices: -s 0,hostbridge -s 31,lpc -s = 0:4:0,virtio-blk,/dev/zvol/h/bhv-02 -s 0:5:0,virtio-net,tap0,mac=3D58:9c:fc= :00:6c:88 -s 0:6:0,virtio-rnd -s 0:7:0,fbuf,tcp=3D0.0.0.0:5901:5900,w=3D102= 4,h=3D768] > 2026-07-04T16:54:49+03:00: [bhyve console: -l com1,/dev/nmdm-bhv-02.1A] > 2026-07-04T16:54:49+03:00: starting bhyve (run 2) > > im still baffled, Why? Is this issue not fixed? IMO an official FreeBSD writeup on how to boot something via netboot/ipxe would be good. Lionel --=20 Lionel From nobody Fri Jul 10 09:22:06 2026 X-Original-To: virtualization@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 4gxRDb33zjz6kqwT for ; Fri, 10 Jul 2026 09:22:07 +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 "YR1" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 4gxRDb2V6lz3FpZ for ; Fri, 10 Jul 2026 09:22:07 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1783675327; 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=F9vHiCGIErzhpwN6W9jHl7Lggn1QMSE7/FKCP9ysnSo=; b=HQ4Xqtp0/oPROUbr1YMPxsNiq3Gh8+GMDu79NzxiK1Xx027DGXVWGb8sOlbT6YDkr/jU3Y fVPHViAHVDho4SuyyFXhNxAUcamJZo+ifofjsXz2G0KTzvOxXixhuZ+PwbrY2JINywzJha 0QfxGgVEe1dYC3xbuQK/eFCLs0BHBX+Zc46ePLwvgOp/GIxk372UtsWtmRbpZJrENupomU HBF1NP1Aykn4bpMjBDdmrHSSWTUVKOKf4bOAr3iZomH5+ZnBsCkSWl1LnEYulad4sS8DbZ iLXmdEJ9fDo9MofTyb0c2wHx4JlNWG2GKYwsIxsRE8naJC9Cazy6J+c2Q/llew== ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1783675327; a=rsa-sha256; cv=none; b=sjiN/SSkaoUkvl/Kxlv9A2vttxN8z+yRqISNsf210jkYod5OgfRR8cIZ60FPOJgmXu33do LlvEmU8gSx6gZAa2an9ONgZ9xib938J/gAapXDepUfbUNaa33O4rz6VOA8Vuqtvkm4SYBa w/+qtdSFiElVV7LwaqjS09F5vLMPBVCSYkCs+Bcht4HpgFnJpEk2vKfV29d0YyOVVQuhZL WL2QSITdTTy8Qpl7V35EEFF4SYaytbKTi568I7mMzPpR2MCy+AjihaWj/5O6WagT87dgAw BRdHmleY5MQf2MbVXxjhbJQzr+2Yk3z+w0ODAlcEjNqg60kEJWYFvAbtA6hJ8g== ARC-Authentication-Results: i=1; mx1.freebsd.org; none ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1783675327; 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=F9vHiCGIErzhpwN6W9jHl7Lggn1QMSE7/FKCP9ysnSo=; b=daBCRnekw5fnB42egrzncgBIauEbwMNG79HJNpslZR3Ov2BWsEqw5vQwVYN96g23tkPji5 r+7+VJmTQlKctyhVXvRxTWO3QiAPjNLT2T1I1LEiEVxqRjtJUMz5Imke1QFuhokXXEYWC2 cHqcFKTR3fs0GqxUPQa+IGBJCTwMXuGgr1GlZZo17PJZgPn7PRUG6B4nxLlgFxdLeSfghf i9AycH0fvgkxEkv71M3Lbboxz25SiD0eaOfoTka16bhLnn6RG2oC6LdpwdT9McRbeq8HmU jfpxS+mtGufpIk5AEnwSdeO1UjxEc1RABMLaWjoJHyfTwNVil2X/BjnHspQQFA== 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 4gxRDb1P4yzp1F for ; Fri, 10 Jul 2026 09:22:07 +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 66A9M7Hq090936 for ; Fri, 10 Jul 2026 09:22:07 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 66A9M7NC090935 for virtualization@FreeBSD.org; Fri, 10 Jul 2026 09:22:07 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 296662] bhyve: passthru caches PCI config header while device is still recovering from FLR; physical BARs left zeroed Date: Fri, 10 Jul 2026 09:22:06 +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: 15.1-RELEASE X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Some People X-Bugzilla-Who: truegrom@gmail.com 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 attachments.created 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 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=3D296662 Bug ID: 296662 Summary: bhyve: passthru caches PCI config header while device is still recovering from FLR; physical BARs left zeroed Product: Base System Version: 15.1-RELEASE Hardware: amd64 OS: Any Status: New Severity: Affects Some People Priority: --- Component: bhyve Assignee: virtualization@FreeBSD.org Reporter: truegrom@gmail.com Created attachment 272687 --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=3D272687&action= =3Dedit Proof of concept, not for commit: readiness wait + BAR restore in cfginit() ### Environment - Host: FreeBSD 15.1-RELEASE (releng/15.1-n283562-96841ea08dcf) GENERIC amd64 - CPU: AMD Ryzen (Cezanne), AMD-Vi IOMMU (ivhd0), hw.vmm.amdvi.enable=3D1 - Device: Intel Arc A380 (DG2), 8086:56a5 rev 05, subvendor 1849:6006 (ASRock), plus its HDA audio function 8086:4f92; both attached to ppt(4) via pptdevs=3D"3/0/0 4/0/0" - Guest: Ubuntu 24.04.4, kernel 6.17.0-35-generic, booted via grub-bhyve (vm-bhyve 1.7.3), devices: -s 0:6:0,passthru,3/0/0 -s 0:7:0,passthru,4/0/0 - IOMMU initializes fine (hw.vmm.iommu.initialized: 1); the EN-25:20.vmm fix is included in 15.1. ### Overview Intel DG2 GPUs do not complete FLR cleanly: the Transactions Pending bit never clears, and after the FLR the device does not respond to config space accesses (all reads return 0xff) for up to ~1 second. Measured on this card with `devctl reset pci0:3:0:0`: reads return 0xffffffff immediately after the reset and recover within ~1 s. When such a device is assigned to a VM, two things go wrong in sequence: 1. ppt(4) resets the device (ppt_pci_reset() -> pcie_flr(dev, ..., force); "pci0:3:0:0: Transactions pending after FLR!" is logged on every start). pcie_flr() waits a fixed delay and then pci_cfg_restore() writes the saved config into a device that is not yet responding, so the restore is lost: afterwards the physical BARs read back as zero (only the type flag bits remain, e.g. 0x00000004 / 0x0000000c) and PCIM_CMD_MEMEN / PCIM_CMD_BUSMASTEREN are clear in the command register. 2. Immediately afterwards, bhyve's passthru_init() -> cfginit() copies the physical PCI header into the emulated config space: for (int i =3D 0; i <=3D PCIR_MAXLAT; i +=3D 4) pci_set_cfgdata32(pi, i, passthru_read_config(...)); Because the device is still unresponsive, vendor/device are cached as 0xffff. Since the standard header range is served to the guest from this cache ("Emulate most PCI header register", set_pcir_handler(sc, 0, PCIR_MAXLAT + 1, passthru_cfgread_emulate, ...)), the guest permanently sees an empty slot. A PCI rescan in the guest does not help even after the device has recovered, because the poisoned cache is never refreshed. Fast-resetting functions are unaffected =E2=80=94 the audio function 4f92 of the same card resets instantly and is always visible in the guest =E2=80=94 which is what makes the failure look so puzzling: one function of the card appears, the other silently does not, with no error from bhyve. Even when the header is read correctly (see PoC below), the guest driver then fails with "Device is non-operational; MMIO access returns 0xFFFFFFFF!" because of the zeroed physical BARs from step 1. ### Steps to Reproduce 1. Attach an Intel Arc GPU function to ppt(4) via pptdevs. 2. Start any bhyve VM with `-s N,passthru,B/S/F` for that function. 3. Observe "Transactions pending after FLR!" on the host console. 4. In the guest: `lspci` =E2=80=94 the slot is empty. `echo 1 > /sys/bus/pci/rescan` does not help. 5. On the host, `pciconf -r pciB:S:F 0x10` etc. show zeroed BARs and a cleared command register, while `pciconf -r ... 0x00` returns the correct vendor/device ID (the card itself has recovered). ### Actual Results Guest sees no device; bhyve reports no error. After manually restoring the BAR values and command register with pciconf(8) on the host and re-scanning the PCI bus in the guest, the i915 driver initializes the GPU completely (GuC/HuC load and authenticate, /dev/dri/renderD128 works, VA-API transcoding functional) =E2=80=94 confirming that nothing els= e is missing. ### Expected Results The passthru device is visible and functional in the guest, or at minimum bhyve reports a diagnostic that the device did not respond. ### Root cause confirmation (proof of concept) To confirm the analysis, a proof-of-concept change to cfginit() was tested on the affected system (see attachment): - poll PCIR_VENDOR (50 ms x 40, i.e. up to 2 s) until the device responds before caching the config space header; - then compare each BAR register of the physical device against the kernel's cached value (PCIOCGETBAR, which survives the reset), rewrite it if it was lost, and re-enable memory decoding and bus mastering. With the PoC applied, a plain `vm stop` / `vm start` cycle produces a fully working GPU in the guest with no manual intervention; bhyve logs "PCI 3/0/0: restoring BAR0 after reset" / "...BAR2..." on each start. This confirms both halves of the analysis (poisoned header cache; lost config restore). The PoC is provided for reproduction and as a mitigation for affected users =E2=80=94 not as a ready-to-commit fix. Suggested directions for a proper fix (left to the maintainers): - Kernel: pcie_flr() in sys/dev/pci/pci.c could poll for device readiness (vendor ID !=3D 0xffff, as Linux does in pci_dev_wait()) after issuing the FLR and before pci_cfg_restore(). That would fix the lost-restore problem for all consumers of pcie_flr(), not just bhyve, and is probably the right layer for it. - bhyve: cfginit() should not cache a config header read from a device that is still returning 0xff, and could verify/restore the physical BARs against the kernel's cached values before use. ### Observed behaviour with and without the PoC - Without the PoC: on every VM start, "Transactions pending after FLR!" on the host; guest sees an empty slot; physical BARs read back zeroed (0x00000004 / 0x0000000c) with MEMEN/BUSMASTEREN cleared; manually rewriting the BARs and command register with pciconf(8) plus a PCI rescan in the guest brings the device fully up =E2=80=94 confirming the mechanism. - With the PoC: plain `vm stop` / `vm start` cycles produce a fully functional GPU in the guest with no manual intervention. In the Ubuntu 24.04 guest (kernel 6.17), i915 initializes completely (DMC, GuC 70.36.0 loaded, HuC authenticated), /dev/dri/renderD128 is created, and VA-API reports full decode/encode profiles (H.264/HEVC/VP9/AV1); hardware transcoding is functional. - The audio function (8086:4f92) of the same card, which resets quickly, behaves identically before and after the PoC =E2=80=94 the readi= ness wait is effectively a no-op for devices that recover promptly, and the BAR restore writes nothing when registers already match the kernel's cached values. usr.sbin/bhyve/pci_passthru.c is currently identical in main and releng/15.1, so the PoC applies unmodified to both; all testing was done on 15.1-RELEASE. ### Provenance disclosure The root-cause analysis was performed interactively on the affected hardware; all measurements, register dumps and logs in this report are from that system. The analysis and the attached proof-of-concept diff were developed with the assistance of an LLM (Anthropic Claude). I am not a C developer and have not performed a full code review of the diff, so I am explicitly NOT proposing it for commit; it is attached only to document how the root cause was confirmed and as a temporary mitigation for affected users. Please treat it as a reproduction aid =E2=80= =94 the root cause description should be sufficient for a committer to implement a proper fix independently. What I can vouch for personally is the empirical side: the reproduction steps, the register dumps, the before/after behaviour, and the fact that the described mechanism (manual BAR restore via pciconf(8) + guest PCI rescan) brings the device fully up without any code changes. I am happy to test any proposed fix on the affected hardware and can provide any additional diagnostics on request. A related but independent bug (bhyve's gvt-d probe claiming discrete Intel GPUs and failing VM startup) is filed separately. --=20 You are receiving this mail because: You are the assignee for the bug.= From nobody Fri Jul 10 09:23:36 2026 X-Original-To: virtualization@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 4gxRGJ4SWRz6kr7L for ; Fri, 10 Jul 2026 09:23:36 +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 "YR1" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 4gxRGJ2vjkz3G76 for ; Fri, 10 Jul 2026 09:23:36 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1783675416; 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: in-reply-to:in-reply-to:references:references; bh=TMcKU+TNua1QaARdNY4kBv2kSulJBIii8F7T33Auo1A=; b=DP/n18Cd9cN8CG4ENj9WV0oNu2J1/WJhsAMppOMVMA3xt6Dh1MR22SCbWuaMclz2crt+z3 P9TsjojY0Qb1dw236dnM0cr5Wd1kQMQbAopAm+vjDFmSsZjYXVXfgqCwIQmgNF82xK+40q Zllzbi5EcW15yXYHYn32uIJiCR3naqlUljdyYG/IFR1V0U6mlU+7dOB5ZG3klqr/wrD4Eq w/SXa02drJsBwW+fbxPhyw7gXLBVXxAZwrqSx2rSc8k7/qMhliSKF3zfdNqYH0RM7MUt0N 95mcKLLDWHqkBymK/0OxTIRTuCmE3FDw7sxUOMHCj3SYGCHwN6UOaRJ7R0vA1Q== ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1783675416; a=rsa-sha256; cv=none; b=wCgEhbcDjvlvXU4EYLh9AG79qUmfJ+MC5yV3Th+tvittlE+tMn2LkYh49g/C6NgHU6C7Ys Ip1mS+U2J1tPlEy8kP97m0/MPCKuwqXfLvF8vznTped6rpMzQNpmSg7/nmIeO3++rJdg4V 8oX9B4eQI2drbhhVGbziYzPAp6gk26W0rKmCeU8+CE7jGM+ZZGzV6JbALFQiqlSpB0IWSu pFBdwUWFqu2KpWN7mRWJyxQguDKPF5dotV07q/39mDnBn2HStm5BGmDKDzTnNNg8G/MH6f C3q75MtsNXzkm8QT7vMk6JBK07Jqsz+DndPO12Dtlp+pU7q1gJL6+QPE2z5dNg== ARC-Authentication-Results: i=1; mx1.freebsd.org; none ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1783675416; 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: in-reply-to:in-reply-to:references:references; bh=TMcKU+TNua1QaARdNY4kBv2kSulJBIii8F7T33Auo1A=; b=BCIfZE45YPA0BVr9E2mlwtiNbJtpba3Lw1ntAbgHFa/GkKXabwbnPY7FI3F4U9FaZQjydh GkNdgyBK2F4cG76SQ7ht2E6i9b5Ial2Ei3Rp0dblsjDir2g9zTB3OtpROjBsSvFuPgZuH+ EBaDmeMee3OBh0mz89SXl+KyOBihSpmLGYhukLSlrM9LS9vqB0V1lAMAELxLEc16zVBOr0 t83UHw4cqh2Ohgc+UwlHbyl4k0o8Y5NfEqd7oOnfhwp+sagTvUzX3bNVrw/3gVHUH8uU73 epPI08qzkVR0LBW/qR2iCldgham3OGI6ZT4aXABYMkWCb3FQEz0Yn+uTcMIAQQ== 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 4gxRGJ1l4zzqF7 for ; Fri, 10 Jul 2026 09:23:36 +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 66A9NaUk092428 for ; Fri, 10 Jul 2026 09:23:36 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 66A9NaGI092427 for virtualization@FreeBSD.org; Fri, 10 Jul 2026 09:23:36 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 296662] bhyve: passthru caches PCI config header while device is still recovering from FLR; physical BARs left zeroed Date: Fri, 10 Jul 2026 09:23:36 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: bhyve X-Bugzilla-Version: 15.1-RELEASE X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Some People X-Bugzilla-Who: truegrom@gmail.com X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: virtualization@FreeBSD.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: attachments.created 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=3D296662 --- Comment #1 from Roman Gromov --- Created attachment 272688 --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=3D272688&action= =3Dedit Session log --=20 You are receiving this mail because: You are the assignee for the bug.= From nobody Fri Jul 10 09:28:25 2026 X-Original-To: virtualization@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 4gxRMs67rcz6krQc for ; Fri, 10 Jul 2026 09:28:25 +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 "YR1" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 4gxRMs55CKz3G5K for ; Fri, 10 Jul 2026 09:28:25 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1783675705; 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=DPlBjkhr2zSOchJYNOVpKJr3v9qv0dcUVYvivO85SKc=; b=k8JWQBeqLBJeDnlgnpFQOvCut8jGwW9FJ5nwTZzrEic4aZiQTu6RIsOq0n4Z7NxIksJWGX G1q6w1nXh/allnc7NWyViJ2t/1AioeSfhygvyEy+SGFf7vyIQnxsUcBA4M6GU9WWE7XX8R ASc1WQE7Vfpop1Oggtrd6FFha0w8KraJjh04xy1v5olR+69R3gDmDooh+OtmLvFIgftFG+ +qmdovUFH9sePTLwcIS8mtLmjPiXgySXwnduaCI+7Y4zsdXQF7gO/nJaZLw/Z7Hg4HZulB 7PA+juixsfL1jE0CcJIRvTwGS+044bjZ0ac7gwBOTqFKonvh9qOQBFXGdY4LYg== ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1783675705; a=rsa-sha256; cv=none; b=TtoBJuU8iQaOz3tLxpcvqr3cPAO4fpEyUGCQZGbHzW+NHpcUGO9/fdI93x0ScLkzXVljVk G68x/csQhqdnQWyOkw3eFSyctrs71urjs41vtfRaiH9j0n2DXqA9nECZXoiSG6i5PUzi1Z HBwS/OW0/2+KXUQGJgsHSS8t2LYrzP3SPSAxOo8YNGZ4K9mPid9dD00WUnhKl6hFDES2h1 umQbxTEAOBdUmYnO/LA4sSG0jg6pwDp5vAVDGJcW8ZJEpwCT4/SIZNza+nXGb5KBfuvFTL 7FEwJ7BQ/vCovBOlLx+7qbrpgpfVZTLm9cEqweQqydpxcUc0zUAjVk+nUYR7PA== ARC-Authentication-Results: i=1; mx1.freebsd.org; none ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1783675705; 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=DPlBjkhr2zSOchJYNOVpKJr3v9qv0dcUVYvivO85SKc=; b=Ed1Kb3yCT/gxo2hJZ5ZX0+GKeiow4vxAm5UvmQEy83vr1hr6JKctzomq3XT3gH01ag0T67 CDjtn0QmnUQt6+k29cPqL7+xqaEVKuVwWFK3RrhCo3ik0PRmI+23U1EdBmTwcJg5tU9yU5 kNedUGbdl1AZTfukeTfRxYEHcwSsc/97YsKwAbTEjHf4U27gT4EZzVJhlaSsW4tNdfa1zB K1lSZTb32IkzuT4U2pQ2AGGu+8SiuUmM3EZYg+y1ShshHXOKOHYiGn7XYdP6R8GuruHbgG 31Ulv3v4fXmXT7X9MqBcr0rEFA9nrbnGX9geHatMW5SJs7qjkSkX+vZ1Y+TpVA== 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 4gxRMs3nFZzpbS for ; Fri, 10 Jul 2026 09:28:25 +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 66A9SPHv094500 for ; Fri, 10 Jul 2026 09:28:25 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 66A9SPhE094499 for virtualization@FreeBSD.org; Fri, 10 Jul 2026 09:28:25 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 296663] bhyve: gvt-d probe claims discrete Intel GPUs (Arc/DG2), VM startup fails with "Unknown IGD device" / GSM errors Date: Fri, 10 Jul 2026 09:28:25 +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: 15.1-RELEASE X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Some People X-Bugzilla-Who: truegrom@gmail.com 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 attachments.created 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 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=3D296663 Bug ID: 296663 Summary: bhyve: gvt-d probe claims discrete Intel GPUs (Arc/DG2), VM startup fails with "Unknown IGD device" / GSM errors Product: Base System Version: 15.1-RELEASE Hardware: amd64 OS: Any Status: New Severity: Affects Some People Priority: --- Component: bhyve Assignee: virtualization@FreeBSD.org Reporter: truegrom@gmail.com Created attachment 272689 --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=3D272689&action= =3Dedit Proof of concept, not for commit: skip GVT-d quirks for devices not in the = IGD table ### Environment Same system as bug #296662: FreeBSD 15.1-RELEASE amd64, AMD Ryzen (Cezanne) host with AMD-Vi, Intel Arc A380 (8086:56a5) on ppt(4), Ubuntu 24.04 guest via vm-bhyve/grub-bhyve. ### Overview usr.sbin/bhyve/amd64/pci_gvt-d.c registers quirks for passing through Intel integrated GPUs (Graphics Stolen Memory, OpRegion). Its probe matches on vendor =3D=3D Intel && class =3D=3D display only: gvt_d_probe(): vendor =3D=3D 0x8086 ? class =3D=3D PCIC_DISPLAY ? -> claim the device This also matches discrete Intel GPUs (Arc/DG2, e.g. 8086:56a5), which have no GSM and no OpRegion. gvt_d_init() then fails =E2=80=94 depending on= the host, either at the hw.intel_graphics_stolen_* sysctls / E820 allocation, at get_igd_ops() ("Unknown IGD device. It's not supported yet!"), or at gvt_d_setup_opregion() ("Invalid OpRegion signature") =E2=80= =94 and because a pe_init failure is fatal in init_pci(), the VM does not start at all. This failure mode was previously reported on freebsd-virtualization for an Arc A380 on an EPYC host ("Unable to setup Graphics Stolen Memory" / "Invalid OpRegion signature", January 2025), where the suggested direction was to skip the GVT-d quirks for such devices. Note: on my system this failure mode was masked in an unfortunate way =E2= =80=94 because of the FLR recovery bug (bug #296662), gvt_d_probe() read 0xffff as the vendor ID from the still-unresponsive device and silently declined it, so the VM started but with an invisible GPU. Once the FLR issue is fixed, every Arc passthrough attempt would instead die in gvt_d_init(). The two bugs together make Arc passthrough impossible in different ways, whichever one you hit first. ### Steps to Reproduce 1. Ensure the GPU responds to config space accesses at probe time (fix or work around the FLR-timing issue from bug #296662). 2. Start a bhyve VM with an Arc GPU function as a passthru device. 3. bhyve exits during initialization with GSM/IGD/OpRegion errors. ### Expected Results Discrete Intel GPUs are passed through as plain passthru devices; the GVT-d quirks apply only to the integrated GPUs they were written for. ### Root cause confirmation (proof of concept) To confirm the analysis, a proof-of-concept change was tested on the affected system (see attachment): in gvt_d_probe(), return ENXIO when get_igd_ops() has no entry for the device, so unknown/discrete devices fall through to the generic passthru path instead of failing VM startup. Tested together with the PoC from bug #296662: the Arc A380 passes through cleanly to an Ubuntu 24.04 guest, i915 initializes fully (GuC 70.36.0 / HuC authenticated), VA-API hardware transcoding works. The one-line direction (restrict the GVT-d probe to devices the code actually knows how to handle) matches what was suggested on freebsd-virtualization; the exact criterion (device table vs. host bus 0/2/0 vs. something else) is left to the maintainers. usr.sbin/bhyve/amd64/pci_gvt-d.c is currently identical in main and releng/15.1, so the PoC applies unmodified to both; all testing was done on 15.1-RELEASE. ### Provenance disclosure The analysis was performed interactively on the affected hardware. The attached proof-of-concept diff was developed with the assistance of an LLM (Anthropic Claude). I am not a C developer and have not performed a full code review, so I am explicitly NOT proposing it for commit; it is attached to document how the root cause was confirmed and as a temporary mitigation for affected users. I am happy to test any proposed fix on the affected hardware. See also bug #296662 (bhyve passthru caches the PCI config header while the device is still recovering from FLR) =E2=80=94 both bugs must be addres= sed for Intel Arc passthrough to work. --=20 You are receiving this mail because: You are the assignee for the bug.= From nobody Fri Jul 10 09:29:20 2026 X-Original-To: virtualization@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 4gxRNw31fTz6krc6 for ; Fri, 10 Jul 2026 09:29:20 +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 "YR1" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 4gxRNw2TS8z3GtK for ; Fri, 10 Jul 2026 09:29:20 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1783675760; 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: in-reply-to:in-reply-to:references:references; bh=z7LRTMMhQKXwoRarbjrKnT0tsLY3jK37CY0pkWL5Yx0=; b=Nqb8GZkZFGQwJyJWsJcP8p5LRr9ayKBICAoCIHo79lV8jXDheILT8vlYKI4mD51FJC2V8Y OX32ai6Jq5ryFHqkAcwcNp0DlqX5NzCofQ4ViyB/PgEdsn1EQZE1r/MU7kCCjxXS0CwwE6 6LP3xVS482sbBk46W5XkzdfS+ySEXgymlBqe+34Dhpn3jNuy0iZ9ST3eCE8PdXaPS8c0+W vQFJXZBDfvawxf6RfJObjSJO3QAYGPV+Yqufo/nj9Bonkderv1BkR8UmJJaFH+sli5VSkC kcyqdca8T8p9b8GIOpCRZk3OC1gufNvF/kiqY1hJmaOd3K879mL+/8TS+U9VyQ== ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1783675760; a=rsa-sha256; cv=none; b=uPRNf7pRf36CtvluqTqhxSrI5OSF9G1aZExyAXfZbOwzMYH9JX2PcTb6/HQLvMQAv4FDnf DzG6YMIlXhA2OaNFiCCOz4Ma2wuDkp+H0MGdHpHSDPzhqSkH88K1U4XfVruTIKkyH3dGkg 6kT7ebTwbx/qVCMeSFErqx1LCuERmxChGgt9dBzauhW4zMZ/PxMaein87xNmgWarSeQ5ng ixtuZasNWUtngqHixSWNO2lYivqc7UAYEkd0ZBU3jIkK3hyZDOe0pXMsMMCcyB3IkeJASG vUdeELwTcrZeh3+e/+tEGfseyqscTVGH0nUNmQOts20jpvuIFH9HmX1G9YIi9Q== ARC-Authentication-Results: i=1; mx1.freebsd.org; none ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1783675760; 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: in-reply-to:in-reply-to:references:references; bh=z7LRTMMhQKXwoRarbjrKnT0tsLY3jK37CY0pkWL5Yx0=; b=cKdgSvNqv156PlLd52Lrjz5aheUueZenhE3JQ8PNOc5jkRtsYrF4SZeT3n+oS4V40mLuIW R2/+jJRRom8cltDJ0IWN6JEyB/9947B9WxgQ/hRnZKb5/Ldab+awA0v1jw+mKFdIv9isWc tQyiyix9zzwdfxf57rnG/+JWDqaQIToebkwAkWHBWhYs8RUyt/2SEUrRfHGYfeRrb4j5lq vCiMfKp/wKeUyJHYghcY6QCCgteZDUVK6SN6sIRQ3kFsS5OP6pJv9fyqRs/EKUmjU5ZUSc YHOiC0ZBJa9bh6TbDDkrBBp28+IYAVyJRSY1u3fLO58RiGz1e9HjbOE+R/uLmA== 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 4gxRNw12fxzqL9 for ; Fri, 10 Jul 2026 09:29:20 +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 66A9TK7r094924 for ; Fri, 10 Jul 2026 09:29:20 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 66A9TK6X094923 for virtualization@FreeBSD.org; Fri, 10 Jul 2026 09:29:20 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 296662] bhyve: passthru caches PCI config header while device is still recovering from FLR; physical BARs left zeroed Date: Fri, 10 Jul 2026 09:29:20 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: bhyve X-Bugzilla-Version: 15.1-RELEASE X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Some People X-Bugzilla-Who: truegrom@gmail.com X-Bugzilla-Status: New 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=3D296662 --- Comment #2 from Roman Gromov --- The related gvt-d bug mentioned above is bug #296663 --=20 You are receiving this mail because: You are the assignee for the bug.= From nobody Fri Jul 10 09:30:01 2026 X-Original-To: virtualization@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 4gxRPj2vgQz6krTX for ; Fri, 10 Jul 2026 09:30:01 +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 "YR1" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 4gxRPj2R4Rz3HPN for ; Fri, 10 Jul 2026 09:30:01 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1783675801; 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: in-reply-to:in-reply-to:references:references; bh=s0D/gh9ulUEN8rnIG2I+IsoWh3gXMEdshET6EWQGkPs=; b=gt+xx81OP/SUFn+IAvgWJZXl+d4FqAo47H7cj76AVlF+Xo8ArdetQ3yq3KJBOy8eutlGH9 hErHN40cauZJNsIoD3SkA+vUZU4CLc2ZTvu08lmk1sg050BU5mxyi6lPZyprXU1pFdYcCh qlqGTj6Z2MUgMEAbNofIp3WGhxZVosyPj5XCZuN+8KTKLiV1u3hzqKlYvRojCupuWCdbqi 27hMslxzRbbhwHyFy4DsV9S83HnWWNQF6f2RqyR9QMz6zCEp63ua/8bOv6/QZ7Xnsa5v4l jJyKh9gAbiRCgD3Ata+6A2XJlK4w450GXdgVGEVzIXUKKZahuwC3gM0jS59KrA== ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1783675801; a=rsa-sha256; cv=none; b=I4w1T/QQKGz3RnLrWMDoJn6A2EA2p7G1he0znzvx3cdOMW+yrTWTIBUFRERHB/WYLxPdMD ryZyg0bC+YQvr+dy2BOJ7pJAU5+5xSUPfqExJSYWyPJUiB4NIe+gVQ4fxhfrJhToYAQK+4 Sg5RxBSOx3qET0cc3UHKbdPB4Gu2m7h0JHcsB+nDdtLGna664e0KT1rS2NKwH3GzNWoiRN 14te9VRPA4pi2rwaNkR4b+fngU5B+e6IOwI9Qvz2keGNobO8bqvl2ed7j+J1hhOddI6L+X 3W39eAVGutCEKC0CmDykY11wwS0b9JwH7ejmJX8Wy51Whu2WJJ3WaBx5ejUD/A== ARC-Authentication-Results: i=1; mx1.freebsd.org; none ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1783675801; 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: in-reply-to:in-reply-to:references:references; bh=s0D/gh9ulUEN8rnIG2I+IsoWh3gXMEdshET6EWQGkPs=; b=uf35GOK9MVLtNBAjCEoTXRAjdkvyf7kR77lLqZt32JQ5Kw8RB0x428G0jIt85CSMg1kYEi xZ4/nX1L1gj8NhV0iy3chVpl3bUOvvvPgOhlKOHw1JfKQ9/5GRlUg22SaPa6YcvoDMSgme C0MN+DqrXoh2vCirAlQz/2JCfFL0d0ycouERgqk40MfaL8k/Gq/F35wEQUV0sKqBtcOtzk vFNvTRMk3UJiVoPl9mH3EAzTZnWH7VHrkj28CQqQcy6d7O08YZqiQhQHTi2mtYcdrBPnIF BFNvpO4e/95hG0GzwTqmXtp8bM6U7Ik/tc6HnMaOue9wMDD2dFlTRDZ8duFxDA== 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 4gxRPj1Wf2zq11 for ; Fri, 10 Jul 2026 09:30:01 +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 66A9U1vA095334 for ; Fri, 10 Jul 2026 09:30:01 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 66A9U1l5095333 for virtualization@FreeBSD.org; Fri, 10 Jul 2026 09:30:01 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 296662] bhyve: passthru caches PCI config header while device is still recovering from FLR; physical BARs left zeroed Date: Fri, 10 Jul 2026 09:30:01 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: bhyve X-Bugzilla-Version: 15.1-RELEASE X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Some People X-Bugzilla-Who: truegrom@gmail.com X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: virtualization@FreeBSD.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: see_also 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=3D296662 Roman Gromov changed: What |Removed |Added ---------------------------------------------------------------------------- See Also| |https://bugs.freebsd.org/bu | |gzilla/show_bug.cgi?id=3D2= 966 | |63 --=20 You are receiving this mail because: You are the assignee for the bug.= From nobody Fri Jul 10 09:30:01 2026 X-Original-To: virtualization@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 4gxRPk1hgMz6krhc for ; Fri, 10 Jul 2026 09:30:02 +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 "YR1" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 4gxRPj3ydBz3HD9 for ; Fri, 10 Jul 2026 09:30:01 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1783675801; 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: in-reply-to:in-reply-to:references:references; bh=3f6Qn8PPZDfdiPoSp5BSf2psKDBLZlNDwB3KuwFHq4Y=; b=cXX701kNxJzp1zmk4QpSQlCGOQyMGrRB5SyQiSj9YqhhqkAvqZt5WUpkUgwhDSEIup6XBO 95CGQb9d8mUX47R+3FdxLKarAKkHKSXH+uFPuxKJi4TZGmcqsOj1KJFozH73HpG0Fn5e6q sjnNgQaYw9mI7LR3Ku0p8+x94B/L3FNxkZktXXl5VmGWeXCwhxWZQL6st82VWqgH4v8Rbw INn4EjEvYie4c+wA1t2z/zocHDCDQq/FLZDPmmEb58KIkW40CcmkI51qBVIqu4UeegulVc BOJUGK1D/JNZl5jlPMW38o9RIQcW/9Q9soYNqWUd6likY6NkrXhl2BjweF1ozA== ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1783675801; a=rsa-sha256; cv=none; b=l3byuCDKRzcZlU6WQnnYc0Xvo7hpKjjPNR3/R6LwJQgtBl+viOiS8F4Hlm4evLM+QJQppa 0Pv2MNiCezbN1qOvt9LG+631kG64oBcjujpapAut+7X8sdWsGmCxK/h3bDVQpZ20lw4kCF xtPoIhu4QAiMVUoV5E1naa6qrqFpxk9OgZQ0jB/C93M/OcdUtTUB5Hffpa81+5ucaVnASf X//OCXLo+w10GFecWmxZzld1eZ5+EURozsHluthaHGMT5CWEKFQyJhW9e2Ex9v3RJJNqyB cEOiAlolS6U4WokmR8STpBd6GTVRo4ZPq8oq6BlliYpRd9rnCIdhoTIXXp1YFg== ARC-Authentication-Results: i=1; mx1.freebsd.org; none ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1783675801; 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: in-reply-to:in-reply-to:references:references; bh=3f6Qn8PPZDfdiPoSp5BSf2psKDBLZlNDwB3KuwFHq4Y=; b=pS3DcSkIOt6zZLXEYA7Zms82a0OYMsHrWLOg0VYbWp3gJf/3uqUvpoF+a2TFstYYHD+/5X Hm4aLf3C7XaLFVA6DMAH4wRlI/Z94IcCY6xBns0jbF5md7nAgE7Hv4KsqkPr4eBUfr8tVO Jn3Sohw7W6E0ewBJkkyCQLk5rWzbcGsuYaZFC7luSQdFpx9GVT6Ons+kvz3glEGtvwiH1V IT1lHaH6tJmzwXjE3DQeuNijffvkHcWwNVUPgmtmPh3phsbjCNTWEMEIlSS8COAZmmw8t3 pPC+12TFfWnc1Kd2AOKdjuB84nHc+ZhpnhqUq6CvmB2EnbrqMJRXTW+uemNGHw== 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 4gxRPj2VSdzqLC for ; Fri, 10 Jul 2026 09:30:01 +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 66A9U1HP095338 for ; Fri, 10 Jul 2026 09:30:01 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 66A9U1FP095337 for virtualization@FreeBSD.org; Fri, 10 Jul 2026 09:30:01 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 296663] bhyve: gvt-d probe claims discrete Intel GPUs (Arc/DG2), VM startup fails with "Unknown IGD device" / GSM errors Date: Fri, 10 Jul 2026 09:30:01 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: bhyve X-Bugzilla-Version: 15.1-RELEASE X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Some People X-Bugzilla-Who: truegrom@gmail.com X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: virtualization@FreeBSD.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: see_also 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=3D296663 Roman Gromov changed: What |Removed |Added ---------------------------------------------------------------------------- See Also| |https://bugs.freebsd.org/bu | |gzilla/show_bug.cgi?id=3D2= 966 | |62 --=20 You are receiving this mail because: You are the assignee for the bug.= From nobody Fri Jul 10 09:38:55 2026 X-Original-To: freebsd-virtualization@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 4gxRcj49dgz6ksLN for ; Fri, 10 Jul 2026 09:39:33 +0000 (UTC) (envelope-from truegrom@gmail.com) Received: from mail-pj1-x102a.google.com (mail-pj1-x102a.google.com [IPv6:2607:f8b0:4864:20::102a]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (2048 bits) client-digest SHA256) (Client CN "smtp.gmail.com", Issuer "WR4" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4gxRch6RX9z3LGF for ; Fri, 10 Jul 2026 09:39:32 +0000 (UTC) (envelope-from truegrom@gmail.com) Authentication-Results: mx1.freebsd.org; dkim=pass header.d=gmail.com header.s=20251104 header.b=o7zAhDiF; arc=pass ("google.com:s=arc-20260327:i=1"); spf=pass (mx1.freebsd.org: domain of truegrom@gmail.com designates 2607:f8b0:4864:20::102a as permitted sender) smtp.mailfrom=truegrom@gmail.com; dmarc=pass (policy=none) header.from=gmail.com Received: by mail-pj1-x102a.google.com with SMTP id 98e67ed59e1d1-381891a9525so932305a91.3 for ; Fri, 10 Jul 2026 02:39:32 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1783676372; cv=none; d=google.com; s=arc-20260327; b=OHp1fiZbsxHyX2jqVJwU6wE6UJO31rgZGaRrm45FaJsVKEbHAD2RoMFA6cPfJHNl6+ WHs7BPhPHfI2/xl/HD4HZ0DZD4pU0vrt8cNimijcjmydzLLhF34vedSnYpEr9lXkroS0 cqtOtf16pdus0mYQQJo0O8cDi+8RKgtRTJvjW3wDkXL1UXIrBnNNpGZ4iRTMy6cfwnMD utQFoGgVZbjd7bPzACzmoaJpuHRSV1IuOqFybAsDC8kli2qACNAaTXs8vRsQunn5NG38 VKVlG9dVXl3Igg5b3ZHK3swcRmElOGe693/98+2+mvphfpkqZhbiAE4Vdn7iZUKCAuM6 s9Hw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20260327; h=to:subject:message-id:date:from:mime-version:dkim-signature; bh=GTXSD22dhkstENeesCINb3bc13Iuy+55Hy8VVx4LDCM=; fh=l26hILhfTsHyyw+ygmDeeLm14oRJFdCZGIazu6zV1tM=; b=pTsmL6P3NTg5FCI6m036sIikOptjYdhJ/xVajbcy+F5kwrqWHlcGPKvpTtZ16OKJv1 qemZZ8EEecRfqh94F2bhFCDr/ABtn2emxL2RfUUzN/59qgCSRQkw5cqqqrPwdrMekaku 0Df8Kd1BMXWOcKoBwbUPF15R1b+h/TZDRNmv9LWd96b6DNLd1VN2WFy3oIWXTXJWHDzR 59cVW9Styx4RjakGx/+1u8W+jg93Gfz1k65AioNRjZLHhTnzwnsbk4vyuDEgzVqwqnJn 80QOKu+OyDXNtof4suyD36JQaZLkmrwM0Le7i7FHQIOUhb/KPf2nNmwggl8PwismeARP MPJA==; darn=freebsd.org ARC-Authentication-Results: i=1; mx.google.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20251104; t=1783676372; x=1784281172; darn=freebsd.org; h=content-type:to:subject:message-id:date:from:mime-version:from:to :cc:subject:date:message-id:reply-to:content-type; bh=GTXSD22dhkstENeesCINb3bc13Iuy+55Hy8VVx4LDCM=; b=o7zAhDiFaZtsWoc9Gc5tPoABUHNbBVCvoNb3s1fhtAXzlid/xK3t8IRfJy0PgZeHSg J4LcJ6nmUh+Cmmxr0CvIeKAeDVCIX82YVct3dR4U8K0YJ2cUii9t3H4B9osjdNbnuAHH RSBXN9nZXowyci2t9V6GEhnYQ1y3NOmbqBSM4sKeXfFFC9ttaY0VKsq4i8pgs0djR0Kc 8OVk/B4yS19xwvY/Pxmk2oWq/Cpi4aOlMZY6fJeqyzB0BCRrbwt1sb32yYJuNoViNhYh jbpsmsOkibXcozs2ZIvm3E7n9l4+4uPLUQcL4PclRcFcPaGK7fykp2O8bNPaZ9hVQF1W jEAw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1783676372; x=1784281172; h=content-type:to:subject:message-id:date:from:mime-version:x-gm-gg :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to :content-type; bh=GTXSD22dhkstENeesCINb3bc13Iuy+55Hy8VVx4LDCM=; b=OvA0QoPRnJQO2t/HoI2OLgP2PjS8TKiK+kWiUYuOsGJ/NVtzimJ6QUYssohJclssPZ Y2J+uI3wUrhzttWhrUAdoIYgNz51h7NB/+WcmFR9JZw6u+4DYfz8kfelSb/X5miv2Azb XZQqw2g78zo4zx5XmTQnNJsaHAqNmU7m+E9WtpaoLwGsC0hPfnoH0xMiQRbvlHCovXfg JmPppKkt4MnLfN6ETe09R36X1F92R0g2mCMz8CgJ16yplJrtq/W7wg2OKs4e/DZ3Ceiq UB4ovJULJy8Wp0Ios/DGg4yDTrPUqxOTG3euyJk/FqpotxEgvkcAzt2L42igdFhcK/qb sucA== X-Gm-Message-State: AOJu0YwjWl4QyLr0Yja6cGyxbLPH/9z0SPpKsBoZ7laUXoeJt5SGd8DG 8FZIAwxdLVv82bAfQji5a8tqI7B0QW9k63Gf5Ggw3h1HxP2OLPOYSHxJtMPE1KT7kH4MsgN642x A8SJDKE0buoqXrwNfGdyDi9MK1SfxkkTpu9mcyA4= X-Gm-Gg: AfdE7cnLyMjbYhL1l1lc07J4TaxC9rL21npYUwug4humBuMH+Wot7Mg2Xqx8wkIQe4W GPzb324uzxQhrEWx94+NQw/vQprCcYHN9lXgC5kPxjsOlmS1VlyZU2kl7LvPetd5+cMVb5qXpJV EhJQvRGEhMtUCkjXlcTLU4TvFpV50PtVss/+wTIrTRNa+tL53P0WdXwd6l+o517Tib8+LEMxqZp k0RBIAVcfRzvL1LZPlR8iwnSAKJ/9Yqsv5LaCZZEfOGSDKLtQzKO1NAWjwY4h+9Q/XJd46YNuF9 nQ== X-Received: by 2002:a17:90a:e184:b0:37f:fb1d:63fa with SMTP id 98e67ed59e1d1-3893fc693famr10967044a91.15.1783676371720; Fri, 10 Jul 2026 02:39:31 -0700 (PDT) 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 From: Roman Gromov Date: Fri, 10 Jul 2026 12:38:55 +0300 X-Gm-Features: AVVi8Cet7ue5TpYzIcBSbJdS5DLpS5io6NAvgOMii_H1jyewHPO6OfbitEoeZ1k Message-ID: Subject: bhyve PCI passthrough of Intel Arc (DG2) GPUs: two root causes identified, PRs filed (with PoC mitigations) To: freebsd-virtualization@freebsd.org Content-Type: text/plain; charset="UTF-8" X-Spamd-Result: default: False [-4.78 / 15.00]; ARC_ALLOW(-1.00)[google.com:s=arc-20260327:i=1]; NEURAL_HAM_LONG(-1.00)[-1.000]; NEURAL_HAM_MEDIUM(-1.00)[-1.000]; NEURAL_HAM_SHORT(-0.78)[-0.784]; DMARC_POLICY_ALLOW(-0.50)[gmail.com,none]; R_DKIM_ALLOW(-0.20)[gmail.com:s=20251104]; R_SPF_ALLOW(-0.20)[+ip6:2607:f8b0:4864::/56:c]; MIME_GOOD(-0.10)[text/plain]; TO_MATCH_ENVRCPT_ALL(0.00)[]; RCVD_TLS_LAST(0.00)[]; FROM_HAS_DN(0.00)[]; MIME_TRACE(0.00)[0:+]; RCPT_COUNT_ONE(0.00)[1]; FREEMAIL_ENVFROM(0.00)[gmail.com]; FREEMAIL_FROM(0.00)[gmail.com]; DKIM_TRACE(0.00)[gmail.com:+]; RCVD_COUNT_ONE(0.00)[1]; DWL_DNSWL_NONE(0.00)[gmail.com:dkim]; TO_DN_NONE(0.00)[]; FROM_EQ_ENVFROM(0.00)[]; MISSING_XM_UA(0.00)[]; PREVIOUSLY_DELIVERED(0.00)[freebsd-virtualization@freebsd.org]; MLMMJ_DEST(0.00)[freebsd-virtualization@freebsd.org]; MID_RHS_MATCH_FROMTLD(0.00)[]; ASN(0.00)[asn:15169, ipnet:2607:f8b0::/32, country:US]; RCVD_IN_DNSWL_NONE(0.00)[2607:f8b0:4864:20::102a:from] X-Rspamd-Queue-Id: 4gxRch6RX9z3LGF X-Spamd-Bar: ---- Hi list, Following up on the earlier thread about passing an Intel Arc A380 through to a bhyve guest (January 2025, "Unable to setup Graphics Stolen Memory" on an EPYC host): I hit the same class of problem on FreeBSD 15.1-RELEASE (AMD Ryzen/Cezanne host, AMD-Vi, Arc A380 8086:56a5, Ubuntu 24.04 guest via vm-bhyve) and was able to track it down to two independent root causes. I have filed two PRs with full analysis, reproduction data and proof-of-concept mitigations: PR 296662: bhyve passthru caches the PCI config header while the device is still recovering from FLR DG2 GPUs do not complete FLR cleanly ("Transactions pending after FLR!" on every VM start) and return 0xff to config space accesses for up to ~1 second afterwards (measured with devctl reset). Two consequences: 1. ppt(4)'s post-FLR pci_cfg_restore() writes into the unresponsive device and is lost: afterwards the physical BARs read back as zero and MEMEN/BUSMASTEREN are cleared, so all guest MMIO returns 0xffffffff ("Device is non-operational" from i915). 2. bhyve's cfginit() then copies the config header into the emulated config space while the device still reads as 0xff, so vendor/device are cached as 0xffff and the guest permanently sees an empty slot -- silently, with no error from bhyve. A PCI rescan in the guest does not help since the poisoned cache is never refreshed. Confirmed by manually restoring the BARs and command register with pciconf(8) on the host + a PCI rescan in the guest: the GPU then comes up fully with no code changes. A PoC (readiness poll in cfginit() + BAR restore from the kernel's PCIOCGETBAR data) makes plain vm stop/start cycles work reliably. The proper fix likely belongs in pcie_flr() (poll for device readiness before pci_cfg_restore(), like Linux's pci_dev_wait()), which would help all consumers, not just bhyve. PR 296663: gvt-d probe claims discrete Intel GPUs gvt_d_probe() matches on vendor==Intel && class==display only, so it also claims Arc/DG2 cards, and gvt_d_init() then fails VM startup on GSM/IGD/OpRegion (the failure Peter reported in the January 2025 thread). Restricting the probe to devices the code actually knows how to handle (as Corvin suggested back then) fixes it; a one-line PoC is attached to the PR. Note the two bugs mask each other: with the FLR issue present, gvt_d_probe() reads 0xffff as the vendor ID and silently declines the device, so the VM starts but the GPU is invisible; with the FLR issue fixed, every Arc passthrough instead dies in gvt_d_init(). Whichever one you hit first, Arc passthrough does not work. With both PoCs applied, the A380 passes through cleanly: i915 in the guest initializes fully (GuC/HuC loaded and authenticated), /dev/dri/renderD128 works, and VA-API hardware transcoding (H.264/HEVC/VP9/AV1) is functional under Jellyfin. Full disclosure: the analysis was done interactively on the affected hardware, and the PoC diffs were developed with LLM assistance. I am not a C developer, so I am not proposing them for commit -- they are attached to the PRs as reproduction aids and as a temporary mitigation for affected users. The PRs contain everything needed (register dumps, timings, logs) for someone to implement a proper fix, and I am happy to test any proposed fix on this hardware. Best regards, From nobody Sun Jul 12 21:00:52 2026 X-Original-To: virtualization@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 4gyydw6T3qz6l022 for ; Sun, 12 Jul 2026 21:00:52 +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 "YR1" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 4gyydw49bjz40lY for ; Sun, 12 Jul 2026 21:00:52 +0000 (UTC) (envelope-from bugzilla-noreply@FreeBSD.org) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1783890052; 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=gzy5gheyEVgg10TlZfRAfRHrx70aTgF8buXeGo9BiXI=; b=gdF1PNICLrl1l1vxZ6ZuO7hePSRE/VFDVWjVFcTxQDLXx9xSdC51vsVIXEYnjUg9wJElC/ QzMkGI1KU0D1G/xIZTM9Q3uV9A9qZgSHVQrnAPmkEA/SrTHvz7jx5vacm7PXfkUCxbJ+kM MhCO8xvIh1jraqA+NAGKGp7UN2KW8c/13+Jva82ctA3LcJfnzeC2WsHbM4OOS62UFbrwrF FiUObPw/gUUYwFrA56pWwYrda1CtOi2WKfgl1HMmetm6+4BtDHqzJFZhg8XJkJpVY2BwEV bK0Jvb2a0tPNA8v00ZnJYMEtqGP5eLd+j1oS3wzNraZ2tuYFik7umAicUqjnsQ== ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1783890052; a=rsa-sha256; cv=none; b=ttsbOQTN81RFg9I78yX7rOchYqitXp7Iw8nZEAMAjCPPsYQnHTCJhX5UMEad65izP6qf+v 1NofzwfQn9MqAJ5IfvgfgTCpHZpOgDqyX6DLyHBnAelO6KfdMfV1OhNtfsL+fCc7QXSI2K bIcaK6YBo+IgF6WyKXF39FuLR7mtDsXNRhzSYMWXKXHWUzuNnZulf7cRhnyxZ/cRbjxW/P z8BpGTlweIvCkc8StmwABOvuQ1eElJwGFbxOK5ZmfRmeTRhn8n5MhSeNEhm6+MxBUaBnb3 ShcWu7W+38KUJO86RFRCtPAaITYCd6eZ5j8D3SXpl1+hDolGaPL+0OL9IV3qcA== ARC-Authentication-Results: i=1; mx1.freebsd.org; none ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1783890052; 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=gzy5gheyEVgg10TlZfRAfRHrx70aTgF8buXeGo9BiXI=; b=eiROXqFoco6q9lc18g+eahuwx97jLP4ARGOZnX3PZrj4ItJDaqSjqFxVOJZrC+Y8JWczX9 vI/mHqANf5xBr31wCVb9RkXSJS4pj9lUgFnxUXt5QP/EuRkcfO7szP6LzLgsIb4Khx9dnZ uipYjh59vRMaQd+fxnzU/2gC2bVw9bX6t7QblKBgi3WQ/PXcNn9DzFWI3P3bTsG+IYZtWU e5IxlntYIC59ISHCCiXhdLnukoT7F3bep3QjKoXeWiLSa6U+MmQ5gPnnEExZQQ27ovPdZb KSVfhuZVysujmJIWMvYYe86L7RGM4lQa9p9Tq38uyQiFmMUPDMuNx2RZAB++9Q== 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 4gyydw3467zCN1 for ; Sun, 12 Jul 2026 21:00:52 +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 66CL0qcC027237 for ; Sun, 12 Jul 2026 21:00:52 GMT (envelope-from bugzilla-noreply@FreeBSD.org) Received: (from bugzilla@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 66CL0qJV027236 for virtualization@FreeBSD.org; Sun, 12 Jul 2026 21:00:52 GMT (envelope-from bugzilla-noreply@FreeBSD.org) Message-Id: <202607122100.66CL0qJV027236@kenobi.freebsd.org> X-Authentication-Warning: kenobi.freebsd.org: bugzilla set sender to bugzilla-noreply@FreeBSD.org using -f From: bugzilla-noreply@FreeBSD.org To: virtualization@FreeBSD.org Subject: Problem reports for virtualization@FreeBSD.org that need special attention Date: Sun, 12 Jul 2026 21:00:52 +0000 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 Content-Type: multipart/alternative; boundary="17838900521.Eb6d.21998" Content-Transfer-Encoding: 7bit --17838900521.Eb6d.21998 Date: Sun, 12 Jul 2026 21:00:52 +0000 MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" To view an individual PR, use: https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=(Bug Id). The following is a listing of current problems submitted by FreeBSD users, which need special attention. These represent problem reports covering all versions including experimental development code and obsolete releases. Status | Bug Id | Description ------------+-----------+--------------------------------------------------- In Progress | 290735 | bhyve resume hangs New | 289848 | Enable by default BHYVE_SNAPSHOT 2 problems total for which you should take action. --17838900521.Eb6d.21998 Date: Sun, 12 Jul 2026 21:00:52 +0000 MIME-Version: 1.0 Content-Type: text/html; charset="UTF-8" 
The following is a listing of current problems submitted by FreeBSD users,
which need special attention. These represent problem reports covering
all versions including experimental development code and obsolete releases.

Status      |    Bug Id | Description
------------+-----------+---------------------------------------------------
In Progress |    290735 | bhyve resume hangs
New         |    289848 | Enable by default BHYVE_SNAPSHOT

2 problems total for which you should take action.
--17838900521.Eb6d.21998--