From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jiri Slaby Subject: WARNING: kernel/smp.c:292 smp_call_function_single [Was: mmotm 2009-11-24-16-47 uploaded] Date: Fri, 27 Nov 2009 16:03:26 +0100 Message-ID: <4B0FEA3E.5050108@gmail.com> References: <200911250111.nAP1BFg5030254@imap1.linux-foundation.org> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-2 Content-Transfer-Encoding: 7bit Cc: akpm@linux-foundation.org, mm-commits@vger.kernel.org, Avi Kivity , Marcelo Tosatti , kvm@vger.kernel.org, the arch/x86 maintainers , Ingo Molnar , Peter Zijlstra To: linux-kernel@vger.kernel.org Return-path: Received: from mail-bw0-f227.google.com ([209.85.218.227]:38751 "EHLO mail-bw0-f227.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752993AbZK0PDY (ORCPT ); Fri, 27 Nov 2009 10:03:24 -0500 In-Reply-To: <200911250111.nAP1BFg5030254@imap1.linux-foundation.org> Sender: kvm-owner@vger.kernel.org List-ID: On 11/25/2009 01:47 AM, akpm@linux-foundation.org wrote: > The mm-of-the-moment snapshot 2009-11-24-16-47 has been uploaded to Hi, when executing qemu-kvm I often get following warning and a hard lockup. WARNING: at kernel/smp.c:292 smp_call_function_single+0xbd/0x140() Hardware name: To Be Filled By O.E.M. Modules linked in: kvm_intel kvm fuse ath5k ath Pid: 3265, comm: qemu-kvm Not tainted 2.6.32-rc8-mm1_64 #912 Call Trace: [] warn_slowpath_common+0x78/0xb0 [] ? __vcpu_clear+0x0/0xd0 [kvm_intel] [] warn_slowpath_null+0xf/0x20 [] smp_call_function_single+0xbd/0x140 [] vmx_vcpu_load+0x46/0x170 [kvm_intel] [] kvm_arch_vcpu_load+0x24/0x60 [kvm] [] kvm_sched_in+0xd/0x10 [kvm] [] finish_task_switch+0x67/0xc0 [] schedule+0x2f8/0x9c0 [] ? kvm_apic_has_interrupt+0x48/0x90 [kvm] [] ? kvm_cpu_has_interrupt+0x58/0x70 [kvm] [] kvm_vcpu_block+0x6d/0xb0 [kvm] [] ? autoremove_wake_function+0x0/0x40 [] kvm_arch_vcpu_ioctl_run+0x3fa/0xb80 [kvm] [] kvm_vcpu_ioctl+0x435/0x590 [kvm] [] ? enqueue_entity+0x6e/0xe0 [] ? enqueue_task_fair+0x3b/0x80 [] ? task_new_fair+0x93/0x120 [] vfs_ioctl+0x38/0xd0 [] do_vfs_ioctl+0x8a/0x5a0 [] ? sys_futex+0xc6/0x170 [] sys_ioctl+0x4a/0x80 [] system_call_fastpath+0x16/0x1b ---[ end trace ced05997e63d4d13 ]--- It is a regression against 2009-11-13-19-59. Any ideas? thanks, -- js