From owner-freebsd-bugs@freebsd.org Tue Oct 13 05:57:04 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 3E25A4355DD for ; Tue, 13 Oct 2020 05:57:04 +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 4C9PvN0yyJz4DRl for ; Tue, 13 Oct 2020 05:57:04 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: by mailman.nyi.freebsd.org (Postfix) id 1F5C54355DB; Tue, 13 Oct 2020 05:57:04 +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 1F24643583E for ; Tue, 13 Oct 2020 05:57:04 +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 "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4C9PvM6HFZz4DX9 for ; Tue, 13 Oct 2020 05:57:03 +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) 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 BAD4618A76 for ; Tue, 13 Oct 2020 05:57:03 +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 09D5v3vK055328 for ; Tue, 13 Oct 2020 05:57:03 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 09D5v3OK055327 for bugs@FreeBSD.org; Tue, 13 Oct 2020 05:57:03 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 250248] 12.2-RC2 kernel reboots with hw.acpi.debug=1 after a warm reboot. Date: Tue, 13 Oct 2020 05:57:03 +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: Unspecified X-Bugzilla-Keywords: panic X-Bugzilla-Severity: Affects Many People X-Bugzilla-Who: avg@FreeBSD.org X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: bugs@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-bugs@freebsd.org X-Mailman-Version: 2.1.33 Precedence: list List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 13 Oct 2020 05:57:04 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D250248 --- Comment #6 from Andriy Gapon --- (In reply to Rajeev Pillai from comment #5) If you can some (light) code modifications and can build a kernel from sour= ces, then I can try to "throw" a couple of ideas at you. First, in hdac_attach2(), you can try moving a block of code that starts wi= th printing of "Enabling controller interrupt" and goes up to "Scanning HDA codecs" to a place right after the loop that scans for codecs. But I am not sure if that will really work. There are calls to hdac_send_command() in the loop. I am not sure if that function depends on interrupts. Another idea is to move just HDAC_WRITE_4(... HDAC_GCTL_UNSOL) line. Yet another idea is to modify hdac_methods[] array and add device_shutdown method there. It can point to hdac_detach. The idea is to completely reset the hardware _before_ the warm reboot, so i= t is more predictable afterwards. --=20 You are receiving this mail because: You are the assignee for the bug.=