Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S264085AbUFPQMn (ORCPT ); Wed, 16 Jun 2004 12:12:43 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S263984AbUFPQMn (ORCPT ); Wed, 16 Jun 2004 12:12:43 -0400 Received: from smtp.infonegocio.com ([213.4.129.150]:8338 "EHLO telesmtp4.mail.isp") by vger.kernel.org with ESMTP id S264085AbUFPQLX (ORCPT ); Wed, 16 Jun 2004 12:11:23 -0400 Message-ID: <40D07123.1040701@telefonica.net> Date: Wed, 16 Jun 2004 18:11:15 +0200 From: Miguelanxo Otero Salgueiro User-Agent: Mozilla Thunderbird 0.6 (X11/20040502) X-Accept-Language: en-us, en MIME-Version: 1.0 To: linux-kernel@vger.kernel.org Subject: 2.6.7: ehci_hcd prevents system from suspending properly Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2205 Lines: 61 I've just compiled 2.6.7 and found that having ehci_hcd loaded (I've compiled it as a module) prevents system from suspending properly. I've got this dmesg messages: PM: Preparing system for suspend Stopping tasks: =======================================================================| PCI: Setting latency timer of device 0000:00:1d.7 to 64 Could not suspend device 0000:00:1d.7: error -5 PCI: Setting latency timer of device 0000:00:1f.5 to 64 PCI: Setting latency timer of device 0000:00:1f.6 to 64 looks like device 0000:00:1d.7 can't be suspended. From lspci I get this: 0000:00:1d.7 USB Controller: Intel Corp. 82801DB (ICH4) USB2 EHCI Controller (rev 03) If I remove the module (modprobe -r ehci_hcd) the system suspends properly: PM: Preparing system for suspend Stopping tasks: ========================================================================| PCI: Setting latency timer of device 0000:00:1d.0 to 64 PCI: Setting latency timer of device 0000:00:1d.0 to 64 PCI: Setting latency timer of device 0000:00:1d.7 to 64 PCI: Setting latency timer of device 0000:00:1f.5 to 64 PCI: Setting latency timer of device 0000:00:1f.6 to 64 PM: Entering state. 2.6.6 does suspend properly, as does 2.6.5 and 2.4.26. This 2.6.7 compilation is just a make oldconfig from the 2.6.6 settings I have, nothing more, nothing less. My system: Toshiba A10 root@nemo:/home/miguel# cat /proc/cpuinfo processor : 0 vendor_id : GenuineIntel cpu family : 15 model : 2 model name : Mobile Intel(R) Celeron(R) CPU 2.40GHz stepping : 9 cpu MHz : 2394.737 cache size : 256 KB fdiv_bug : no hlt_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 2 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe cid bogomips : 4751.36 - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/