From owner-freebsd-bugs@freebsd.org Sat Feb 15 01:32:34 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 15FC624A704 for ; Sat, 15 Feb 2020 01:32:34 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mailman.nyi.freebsd.org (unknown [127.0.1.3]) by mx1.freebsd.org (Postfix) with ESMTP id 48KCRP6tG5z4Zpq for ; Sat, 15 Feb 2020 01:32:33 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: by mailman.nyi.freebsd.org (Postfix) id EC04E24A6FF; Sat, 15 Feb 2020 01:32:33 +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 EBC8124A6FE for ; Sat, 15 Feb 2020 01:32:33 +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 48KCRP5r49z4Zpp for ; Sat, 15 Feb 2020 01:32:33 +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 C37A25220 for ; Sat, 15 Feb 2020 01:32:33 +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 01F1WXJG099771 for ; Sat, 15 Feb 2020 01:32:33 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 01F1WXa2099770 for bugs@FreeBSD.org; Sat, 15 Feb 2020 01:32:33 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 244118] 13-CURRENT Kernel post r357547 hang during boot on PowerMac G5Q Date: Sat, 15 Feb 2020 01:32:33 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: kern X-Bugzilla-Version: CURRENT X-Bugzilla-Keywords: needs-qa, regression X-Bugzilla-Severity: Affects Only Me X-Bugzilla-Who: marklmi26-fbsd@yahoo.com X-Bugzilla-Status: Open X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: bugs@FreeBSD.org X-Bugzilla-Flags: maintainer-feedback? 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-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, 15 Feb 2020 01:32:34 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D244118 --- Comment #9 from Mark Millard --- (In reply to Mark Millard from comment #8) I got to thinking about my history investigating and I think this is too early for the device to be available for dump to use. Also the hangup likely prevents getting to ddb. So I set up -r357550's artifact materials on a SSD and got into ddb somewhat before the lockup. One part of acttrace looked potentially interesting (typed from a picture and avoiding typing everything for now): Tracing command cam pid 7 tid 100034 td . . . (CPU3) intr_event_handle powerpc_dispatch_intr openpic_dispatch powerpc_interrupt kernel EXI trap by __mtx_unlock_flags __mtx_unlock_flags xpt_copy_path xpt_async cam_periph_error probe_done xpt_done_process xpt_done_td fork_exit fork_trampoline -0x04 I've still got the picture to extract other details from if required. For thread 100034, "show locks" reported one: (I split the line below) exclusive sleep mutex CAM device lock (CAM device lock) r =3D 0 (. . .) locked @ /usr/src/sys/cam/cam_xpt.c:5490 --=20 You are receiving this mail because: You are the assignee for the bug.=