From owner-freebsd-bugs@freebsd.org Sat Feb 8 21:59:47 2020 Return-Path: Delivered-To: freebsd-bugs@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id D546724C9CA for ; Sat, 8 Feb 2020 21:59:47 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mailman.nyi.freebsd.org (mailman.nyi.freebsd.org [IPv6:2610:1c1:1:606c::50:13]) by mx1.freebsd.org (Postfix) with ESMTP id 48FR0g5PP0z4Lby for ; Sat, 8 Feb 2020 21:59:47 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: by mailman.nyi.freebsd.org (Postfix) id B71C324C9C8; Sat, 8 Feb 2020 21:59:47 +0000 (UTC) Delivered-To: bugs@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id B6E2024C9C7 for ; Sat, 8 Feb 2020 21:59:47 +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) server-signature RSA-PSS (4096 bits) client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 48FR0g4Ssjz4Lbx for ; Sat, 8 Feb 2020 21:59:47 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) 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) server-signature RSA-PSS (4096 bits)) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 7BFBE23F2D for ; Sat, 8 Feb 2020 21:59:47 +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 018LxlYd079405 for ; Sat, 8 Feb 2020 21:59:47 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 018LxlbK079401 for bugs@FreeBSD.org; Sat, 8 Feb 2020 21:59:47 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 243993] FreeBSD as Guest with 5+ with xnb(4) devices panic on call to sysctl -a in strlen Date: Sat, 08 Feb 2020 21:59:47 +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: 12.1-STABLE X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Some People X-Bugzilla-Who: dpd@dpdtech.com 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 attachments.created Message-ID: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: https://bugs.freebsd.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-BeenThere: freebsd-bugs@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 08 Feb 2020 21:59:47 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D243993 Bug ID: 243993 Summary: FreeBSD as Guest with 5+ with xnb(4) devices panic on call to sysctl -a in strlen Product: Base System Version: 12.1-STABLE Hardware: amd64 OS: Any Status: New Severity: Affects Some People Priority: --- Component: kern Assignee: bugs@FreeBSD.org Reporter: dpd@dpdtech.com Created attachment 211484 --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=3D211484&action= =3Dedit Interactive kgdb CLI with VIFs=3D7 and info, core.txt from savecore. When running FreeBSD 12.1-stable r354267 amd64 as a guest under Xen 4.11 (XCP-ng 8.0), when adding 7 VIFs (xn NICs), a `sysctl -a ` panics the VM.=20 XEN: Hypervisor version 4.11 detected. Hypervisor: Origin =3D "XenVMMXenVMM" It's not totally clear to me why, but it appears that in /usr/src/sys/libkern/strlen.c lines 99 and 100, in strlen(), that lp appear= s to be zero.=20 Burt force testing show that four VIFs using xnb(4) are fine, adding the fi= fth produces the panic.=20=20 Of note, I also have net.fibs=3D8, but haven't configured other fibs yet. --=20 You are receiving this mail because: You are the assignee for the bug.=