From owner-freebsd-virtualization@freebsd.org Wed Jun 5 16:17:40 2019 Return-Path: Delivered-To: freebsd-virtualization@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 212D115B2672 for ; Wed, 5 Jun 2019 16:17:40 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mailman.ysv.freebsd.org (mailman.ysv.freebsd.org [IPv6:2001:1900:2254:206a::50:5]) by mx1.freebsd.org (Postfix) with ESMTP id A71AC8969F for ; Wed, 5 Jun 2019 16:17:39 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: by mailman.ysv.freebsd.org (Postfix) id 62B1515B266D; Wed, 5 Jun 2019 16:17:39 +0000 (UTC) Delivered-To: virtualization@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 4EB2615B266C for ; Wed, 5 Jun 2019 16:17:39 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mxrelay.ysv.freebsd.org (mxrelay.ysv.freebsd.org [IPv6:2001:1900:2254:206a::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.ysv.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id D91518969C for ; Wed, 5 Jun 2019 16:17:38 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org (kenobi.freebsd.org [IPv6:2001:1900:2254:206a::16:76]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mxrelay.ysv.freebsd.org (Postfix) with ESMTPS id 11DE6C41E for ; Wed, 5 Jun 2019 16:17:38 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org ([127.0.1.118]) by kenobi.freebsd.org (8.15.2/8.15.2) with ESMTP id x55GHbGE048529 for ; Wed, 5 Jun 2019 16:17:37 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id x55GHbuJ048528 for virtualization@FreeBSD.org; Wed, 5 Jun 2019 16:17:37 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 238333] bhyve random crash in rfb.c on FreeBSD current (after r346011) Date: Wed, 05 Jun 2019 16:17:38 +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: CURRENT X-Bugzilla-Keywords: crash, needs-qa, regression X-Bugzilla-Severity: Affects Only Me X-Bugzilla-Who: cem@freebsd.org 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-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-virtualization@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "Discussion of various virtualization techniques FreeBSD supports." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 05 Jun 2019 16:17:40 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D238333 --- Comment #3 from Conrad Meyer --- I should add, if you still have gdb open: (In reply to olevole from comment #0) > Thread 29 "rfbout" received signal SIGBUS, Bus error. > [Switching to LWP 101756 of process 93578] > memcpy () at /usr/src/lib/libc/amd64/string/memmove.S:306 > 306 MEMMOVE erms=3D0 overlap=3D1 begin=3DMEMMOVE_BEGIN end=3D= MEMMOVE_END > (gdb) bt > #0 memcpy () at /usr/src/lib/libc/amd64/string/memmove.S:306 'info registers' might be interesting here, in tandem with 'show disas' or = 'x/i $rip'. > (gdb) p len > $1 =3D 9600016 That's our 2000*1200*4 + 16 magic number from earlier. > print sizeof(strm) > $2 =3D 8 >=20 > (gdb) print sizeof(s) > $3 =3D 8 These are just the pointers. Please 'print *strm' and '*s'. --=20 You are receiving this mail because: You are the assignee for the bug.=