Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751682AbaDQTQc (ORCPT ); Thu, 17 Apr 2014 15:16:32 -0400 Received: from mail-oa0-f51.google.com ([209.85.219.51]:46580 "EHLO mail-oa0-f51.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752760AbaDQTQZ (ORCPT ); Thu, 17 Apr 2014 15:16:25 -0400 Message-ID: <53502886.6020107@lwfinger.net> Date: Thu, 17 Apr 2014 14:16:22 -0500 From: Larry Finger User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.2.0 MIME-Version: 1.0 To: LKML CC: Larry Finger Subject: Bug in 3.15-rc1: Scheduling while atomic splats filling log Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On kernel 3.15-rc1, I get log entries for scheduling while atomic. These BUG splats are repeated many times, and start early in the boot. I tried to bisect this problem, but the bug does not always show on every boot, and I must have had a faulty kernel boot without error. In any case, I ended up at a merge pull. What I can definitively report is that a kernel generated from commit fd1df00 is bad. Fortunately, I have retained the kernels from the bisection onward, and I will retry them to see if I reported any of them incorrectly. As far as I know, the configuration was unchanged during the bisection. The logged messages are as follows: 2014-04-16T10:51:25.205576-05:00 larrylap systemd[1]: Starting Name Service Cache Daemon... 2014-04-16T10:51:25.197425-05:00 larrylap kernel: [ 27.176133] Call Trace: 2014-04-16T10:51:25.205599-05:00 larrylap kernel: [ 27.176139] [] dump_stack+0x4e/0x71 2014-04-16T10:51:25.205605-05:00 larrylap kernel: [ 27.176144] [] __schedule_bug+0x5d/0x6d 2014-04-16T10:51:25.205615-05:00 larrylap kernel: [ 27.176149] [] __schedule+0x775/0x810 2014-04-16T10:51:25.205618-05:00 larrylap kernel: [ 27.176154] [] schedule+0x24/0x70 2014-04-16T10:51:25.205620-05:00 larrylap kernel: [ 27.176159] [] schedule_preempt_disabled+0x11/0x20 2014-04-16T10:51:25.205623-05:00 larrylap kernel: [ 27.176164] [] cpu_startup_entry+0x123/0x430 2014-04-16T10:51:25.205625-05:00 larrylap kernel: [ 27.176170] [] start_secondary+0x1d3/0x290 2014-04-16T10:51:25.205627-05:00 larrylap kernel: [ 27.176175] [] ? acpi_ps_parse_aml+0x186/0x476 2014-04-16T10:51:25.205629-05:00 larrylap kernel: [ 27.177033] BUG: scheduling while atomic: swapper/1/0/0x00000004 2014-04-16T10:51:25.205638-05:00 larrylap kernel: [ 27.177037] no locks held by swapper/1/0. 2014-04-16T10:51:25.205641-05:00 larrylap kernel: [ 27.177039] Modules linked in: arc4 b43 mac80211 cfg80211 snd_hda_codec_generic snd_hda_intel snd_hda_co ntroller snd_hda_codec snd_hwdep snd_pcm snd_seq powernow_k8 kvm_amd kvm rfkill bcma snd_timer snd_seq_device snd r852 pcspkr ssb serio_raw sdhci_pci sm_comm on sdhci nand forcedeth mmc_core sg mtd r592 nand_ids nand_bch memstick bch nand_ecc sr_mod cdrom soundcore battery ac autofs4 nouveau ttm drm_kms_helper drm i2c_algo_bit i2c_core thermal wmi video processor button thermal_sys hwmon ata_generic pata_amd -- 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/