From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1764300AbYEGSFy (ORCPT ); Wed, 7 May 2008 14:05:54 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1756861AbYEGSFm (ORCPT ); Wed, 7 May 2008 14:05:42 -0400 Received: from mail.gmx.net ([213.165.64.20]:50391 "HELO mail.gmx.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1756679AbYEGSFj (ORCPT ); Wed, 7 May 2008 14:05:39 -0400 X-Authenticated: #44953887 X-Provags-ID: V01U2FsdGVkX18GTd18xG4G/adiNWyNeKB2qno5Dit9Kqc/gw10EC ZjdaXirwMvyNCo Subject: [BUG]:WARNING: at arch/x86/kernel/rtc.c:122 in 2.6.26-rc1 From: Mirco Tischler To: Andi Kleen , Ingo Molnar , Thomas Gleixner , lkml Content-Type: text/plain Date: Wed, 07 May 2008 20:05:36 +0200 Message-Id: <1210183536.28099.10.camel@mtlp.tischlernetz> Mime-Version: 1.0 X-Mailer: Evolution 2.22.1.1 Content-Transfer-Encoding: 7bit X-Y-GMX-Trusted: 0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello I've triggered this warning in 2.6.26-rc1-git from 6th of may: ... [11677.490019] CPU1 is down [11677.490149] Extended CMOS year: 2000 [11677.490149] x86 PAT enabled: cpu 0, old 0x7040600070406, new 0x7010600070106 [11677.490747] Back to C! [11677.490952] microcode: CPU0 updated from revision 0x92 to 0x92, date = 03132007 [11677.491065] ------------[ cut here ]------------ [11677.491065] WARNING: at arch/x86/kernel/rtc.c:122 mach_get_cmos_time +0x9e/0x14e() [11677.491065] Modules linked in: i915 microcode cpufreq_userspace cpufreq_conservative cpufreq_powersave sbs sbshc wmi aes_x86_64 dm_crypt rtc_cmos rtc_core rtc_lib kvm_intel kvm coretemp hwmon sbp2 snd_hda_intel snd_pcm snd_page_alloc snd_hwdep pata_acpi snd_seq firewire_ohci firewire_core tifm_7xx1 crc_itu_t snd_timer snd_seq_device tpm_infineon tpm tpm_bios psmouse tifm_core ide_pci_generic snd soundcore intel_agp ohci1394 ieee1394 ata_generic ehci_hcd uhci_hcd fan fuse usbcore [last unloaded: iwl4965] [11677.491065] Pid: 30643, comm: pm-suspend Not tainted 2.6.26-rc1-experimental #72 [11677.491065] [11677.491065] Call Trace: [11677.491065] [] warn_on_slowpath+0x51/0x8c [11677.491065] [] try_to_wake_up+0x1d8/0x1e9 [11677.491065] [] do_machine_check+0xa4/0x3d3 [11677.491065] [] __wake_up+0x38/0x4e [11677.491065] [] mach_get_cmos_time+0x9e/0x14e [11677.491065] [] read_persistent_clock+0x1b/0x35 [11677.491065] [] timekeeping_resume+0xb/0x120 [11677.491065] [] __sysdev_resume+0x16/0x43 [11677.491065] [] sysdev_resume+0x26/0x61 [11677.491065] [] device_power_up+0x9/0xf [11677.491065] [] suspend_devices_and_enter +0xbc/0x105 [11677.491065] [] enter_state+0xe3/0x131 [11677.491065] [] state_store+0xb4/0xd5 [11677.491065] [] sysfs_write_file+0xd0/0x107 [11677.491065] [] vfs_write+0xad/0x136 [11677.491065] [] sys_write+0x45/0x6e [11677.491065] [] system_call_after_swapgs+0x7b/0x80 [11677.491065] [11677.491065] ---[ end trace cce3eb8653db51b7 ]--- [11677.491065] Extended CMOS year: 2000 [11677.491232] Enabling non-boot CPUs ... ... I wasn't able to reproduce the warning yet, but because the commit message introducing the WARN_ON says: > [ tglx@linutronix.de: changed to WARN_ON - we want to know that! > If no one reports it we can remove the complete if (RTC_ALWAYS_BCD) > magic, which has RTC_ALWAYS_BCD defined to 1 since Linux 1.0 ... ] I'm reporting it anyway now. Thanks Mirco