From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755116AbaHFQV0 (ORCPT ); Wed, 6 Aug 2014 12:21:26 -0400 Received: from mx1.redhat.com ([209.132.183.28]:55210 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753799AbaHFQVZ (ORCPT ); Wed, 6 Aug 2014 12:21:25 -0400 Date: Wed, 6 Aug 2014 12:21:13 -0400 From: Dave Jones To: Linux Kernel Cc: Peter Zijlstra Subject: WARN_ON_ONCE(in_nmi()) hit in irq_work_queue_on Message-ID: <20140806162113.GC14261@redhat.com> Mail-Followup-To: Dave Jones , Linux Kernel , Peter Zijlstra MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org WARNING: CPU: 3 PID: 18062 at kernel/irq_work.c:72 irq_work_queue_on+0x11e/0x140() CPU: 3 PID: 18062 Comm: trinity-subchil Not tainted 3.16.0+ #34 0000000000000009 00000000903774d1 ffff880244e06c00 ffffffff9a7f1e37 0000000000000000 ffff880244e06c38 ffffffff9a0791dd ffff880244fce180 0000000000000003 ffff880244e06d58 ffff880244e06ef8 0000000000000000 Call Trace: [] dump_stack+0x4e/0x7a [] warn_slowpath_common+0x7d/0xa0 [] warn_slowpath_null+0x1a/0x20 [] irq_work_queue_on+0x11e/0x140 [] tick_nohz_full_kick_cpu+0x57/0x90 [] __perf_event_overflow+0x275/0x350 [] ? perf_event_task_disable+0xa0/0xa0 [] ? x86_perf_event_set_period+0xbf/0x150 [] perf_event_overflow+0x14/0x20 [] intel_pmu_handle_irq+0x206/0x410 [] ? arch_vtime_task_switch+0x63/0x130 [] perf_event_nmi_handler+0x2b/0x50 [] nmi_handle+0xd2/0x390 [] ? nmi_handle+0x5/0x390 [] ? lock_release+0xab/0x330 [] default_do_nmi+0x72/0x1c0 [] ? cpuacct_account_field+0xcf/0x200 [] do_nmi+0xb8/0x100 [] end_repeat_nmi+0x1e/0x2e [] ? cpuacct_account_field+0xcf/0x200 [] ? lock_release+0xab/0x330 [] ? lock_release+0xab/0x330 [] ? lock_release+0xab/0x330 <> [] cpuacct_account_field+0xe7/0x200 [] ? cpuacct_account_field+0x5/0x200 [] account_system_time+0x98/0x1a0 [] __vtime_account_system+0x2e/0x40 [] vtime_user_enter+0x59/0x90 [] ? context_tracking_user_enter+0xd3/0x1f0 [] context_tracking_user_enter+0xd3/0x1f0 [] syscall_trace_leave+0xa5/0x210 [] int_check_syscall_exit_work+0x34/0x3d ---[ end trace 73831bdc3ef3ba75 ]---