From mboxrd@z Thu Jan 1 00:00:00 1970 From: Borislav Petkov Subject: Re: 2.6.24-rc4-mm1: acpi reboots machine Date: Sun, 9 Dec 2007 10:19:47 +0100 Message-ID: <20071209091946.GA4501@gollum.tnic> References: <20071209075001.GA4686@gollum.tnic> Reply-To: bbpetkov@yahoo.de Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: Received: from smtp101.plus.mail.re1.yahoo.com ([69.147.102.64]:28324 "HELO smtp101.plus.mail.re1.yahoo.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1751723AbXLIJVA (ORCPT ); Sun, 9 Dec 2007 04:21:00 -0500 Content-Disposition: inline In-Reply-To: <20071209075001.GA4686@gollum.tnic> Sender: linux-acpi-owner@vger.kernel.org List-Id: linux-acpi@vger.kernel.org To: Andrew Morton , len.brown@intel.com Cc: linux-acpi@vger.kernel.org, linux-kernel@vger.kernel.org On Sun, Dec 09, 2007 at 08:50:02AM +0100, Borislav Petkov wrote: > Hi Andrew, > Hi Len, >=20 > after booting 2.6.24-rc4-mm1 (2.6.24-rc4-190-g94545ba, otoh, boots ju= st > fine) on my asus laptop, the machine reboots after claiming that > "Critical temperature reached (255 C)." However, the degrees number > is kinda hinting at 0xff all-ones field. Will try dump_stack in > acpi_thermal_critical() to checkout the call path. For now here's the= netconsole bootlog: Here's what i got so far: [ 50.287939] Pid: 1, comm: swapper Not tainted 2.6.24-rc4-mm1 #14 [ 50.287999] [] show_trace_log_lvl+0x12/0x25 [ 50.288103] [] show_trace+0xd/0x10 [ 50.288202] [] dump_stack+0x57/0x5f [ 50.288303] [] acpi_thermal_check+0x150/0x3bb [ 50.288415] [] acpi_thermal_add+0x261/0x2cf [ 50.288515] [] acpi_device_probe+0x3e/0xdb [ 50.288615] [] driver_probe_device+0xaf/0x12a [ 50.288717] [] __driver_attach+0x6c/0xa5 [ 50.288817] [] bus_for_each_dev+0x3e/0x60 [ 50.288916] [] driver_attach+0x14/0x16 [ 50.289015] [] bus_add_driver+0xa6/0x1a8 [ 50.289114] [] driver_register+0x42/0x47 [ 50.289214] [] acpi_bus_register_driver+0x3a/0x3c [ 50.289316] [] acpi_thermal_init+0x57/0x76 [ 50.289424] [] kernel_init+0x138/0x280 [ 50.289525] [] kernel_thread_helper+0x7/0x10 [ 50.289625] =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D [ 50.289680] ACPI: Critical trip point [ 50.289736] Critical temperature reached (255 C), shutting down. so in acpi_thermal_get_temperature() called in acpi_thermal_add() the tz->temperature thingy is not set properly (printk's added): [ 50.276607] Old temp: 4294967023 [ 50.281890] Got temp: 255 [ 50.282567] Old temp: 255 [ 50.287882] Got temp: 255 What's also strange is that the tz acpi_thermal is alloc'd with kzalloc= and there's still garbage in it after reading it in acpi_thermal_get_temper= ature() for the first time. Debugging continues... --=20 Regards/Gru=DF, Boris. - To unsubscribe from this list: send the line "unsubscribe linux-acpi" i= n the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html