Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753014Ab2FRKmW (ORCPT ); Mon, 18 Jun 2012 06:42:22 -0400 Received: from mailout.rz.uni-frankfurt.de ([141.2.22.233]:46820 "EHLO mailout.rz.uni-frankfurt.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751468Ab2FRKmU (ORCPT ); Mon, 18 Jun 2012 06:42:20 -0400 X-Greylist: delayed 1340 seconds by postgrey-1.27 at vger.kernel.org; Mon, 18 Jun 2012 06:42:20 EDT Message-ID: <4FDF00CB.7090703@med.uni-frankfurt.de> Date: Mon, 18 Jun 2012 12:19:55 +0200 From: Thomas Sattler User-Agent: Mozilla/5.0 (X11; Linux i686; rv:13.0) Gecko/20120614 Thunderbird/13.0.1 MIME-Version: 1.0 To: Linux Kernel Mailing List CC: Ingo Molnar , Thomas Gleixner Subject: BUG: scheduling while atomic: chcpu/6197/0x00000002 X-Enigmail-Version: 1.4.2 Content-Type: text/plain; charset=ISO-8859-15 Content-Transfer-Encoding: 7bit X-MailScanner: Found to be clean Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 8505 Lines: 162 Hi there ... I run into the BUG by running 'chcpu --disable 1' on an "Intel(R) Core(TM)2 CPU" machine. I used 3.4.2-rt10 and I seems not to happen in vanilla 3.4.2. I'll try 3.4.3 and 3.4.3-rt10 next and I'll send their results as a reply to this mail. (Please CC: me, I'm not on LKML) Thanks Thomas [ 554.815919] BUG: scheduling while atomic: chcpu/6197/0x00000002 [ 554.815923] Modules linked in: loop rfcomm bnep btusb hid_microsoft usbhid hid uhci_hcd ehci_hcd 3c59x mii e1000e sg usbcore usb_common [ 554.815942] Pid: 6197, comm: chcpu Not tainted 3.4.2-rt10 #19 [ 554.815945] Call Trace: [ 554.815953] [] __schedule_bug+0x3d/0x42 [ 554.815958] [] __schedule+0x68/0x571 [ 554.815964] [] ? enqueue_entity+0x313/0x3d8 [ 554.815969] [] schedule+0x60/0x70 [ 554.815972] [] schedule_timeout+0x17/0x160 [ 554.815977] [] ? check_preempt_curr+0x29/0x64 [ 554.815981] [] wait_for_common+0xa3/0xff [ 554.815985] [] ? try_to_wake_up+0x391/0x391 [ 554.815989] [] wait_for_completion+0x12/0x14 [ 554.815993] [] kthread_create_on_node+0x71/0xb5 [ 554.815997] [] ? put_online_cpus+0x44/0x44 [ 554.816002] [] ? init_amd+0x56f/0x64f [ 554.816007] [] _cpu_down+0x106/0x2b4 [ 554.816021] [] ? put_online_cpus+0x44/0x44 [ 554.816027] [] cpu_down+0x25/0x34 [ 554.816030] [] store_online+0x29/0x70 [ 554.816034] [] ? acpi_processor_start+0xf7/0xf7 [ 554.816038] [] dev_attr_store+0x1b/0x23 [ 554.816043] [] sysfs_write_file+0xae/0xe7 [ 554.816048] [] vfs_write+0x8c/0x122 [ 554.816052] [] ? sysfs_poll+0x77/0x77 [ 554.816056] [] sys_write+0x3b/0x60 [ 554.816061] [] sysenter_do_call+0x12/0x2c [ 554.817316] BUG: scheduling while atomic: chcpu/6197/0x00000002 [ 554.817319] Modules linked in: loop rfcomm bnep btusb hid_microsoft usbhid hid uhci_hcd ehci_hcd 3c59x mii e1000e sg usbcore usb_common [ 554.817335] Pid: 6197, comm: chcpu Not tainted 3.4.2-rt10 #19 [ 554.817337] Call Trace: [ 554.817343] [] __schedule_bug+0x3d/0x42 [ 554.817347] [] __schedule+0x68/0x571 [ 554.817351] [] ? _raw_spin_unlock_irqrestore+0x1a/0x2f [ 554.817356] [] ? __hrtimer_start_range_ns+0x2cf/0x2f6 [ 554.817360] [] schedule+0x60/0x70 [ 554.817364] [] schedule_hrtimeout_range_clock+0xc5/0xec [ 554.817368] [] ? update_rmtp+0x68/0x68 [ 554.817372] [] schedule_hrtimeout_range+0xa/0xc [ 554.817376] [] schedule_hrtimeout+0xc/0xe [ 554.817380] [] wait_task_inactive+0xc5/0xd6 [ 554.817385] [] kthread_bind+0x13/0x4b [ 554.817389] [] _cpu_down+0x121/0x2b4 [ 554.817394] [] cpu_down+0x25/0x34 [ 554.817397] [] store_online+0x29/0x70 [ 554.817401] [] ? acpi_processor_start+0xf7/0xf7 [ 554.817405] [] dev_attr_store+0x1b/0x23 [ 554.817409] [] sysfs_write_file+0xae/0xe7 [ 554.817413] [] vfs_write+0x8c/0x122 [ 554.817417] [] ? sysfs_poll+0x77/0x77 [ 554.817421] [] sys_write+0x3b/0x60 [ 554.817425] [] sysenter_do_call+0x12/0x2c [ 554.819134] BUG: scheduling while atomic: chcpu/6197/0x00000002 [ 554.819137] Modules linked in: loop rfcomm bnep btusb hid_microsoft usbhid hid uhci_hcd ehci_hcd 3c59x mii e1000e sg usbcore usb_common [ 554.819153] Pid: 6197, comm: chcpu Not tainted 3.4.2-rt10 #19 [ 554.819155] Call Trace: [ 554.819160] [] __schedule_bug+0x3d/0x42 [ 554.819164] [] __schedule+0x68/0x571 [ 554.819170] [] ? sched_clock+0x9/0xd [ 554.819173] [] ? sched_clock_local+0x11/0x12f [ 554.819178] [] schedule+0x60/0x70 [ 554.819182] [] schedule_timeout+0x17/0x160 [ 554.819186] [] wait_for_common+0xa3/0xff [ 554.819190] [] ? try_to_wake_up+0x391/0x391 [ 554.819195] [] wait_for_completion+0x12/0x14 [ 554.819199] [] _cpu_down+0x130/0x2b4 [ 554.819203] [] cpu_down+0x25/0x34 [ 554.819207] [] store_online+0x29/0x70 [ 554.819210] [] ? acpi_processor_start+0xf7/0xf7 [ 554.819214] [] dev_attr_store+0x1b/0x23 [ 554.819219] [] sysfs_write_file+0xae/0xe7 [ 554.819223] [] vfs_write+0x8c/0x122 [ 554.819227] [] ? sysfs_poll+0x77/0x77 [ 554.819230] [] sys_write+0x3b/0x60 [ 554.819235] [] sysenter_do_call+0x12/0x2c [ 554.819269] BUG: scheduling while atomic: chcpu/6197/0x00000002 [ 554.819271] Modules linked in: loop rfcomm bnep btusb hid_microsoft usbhid hid uhci_hcd ehci_hcd 3c59x mii e1000e sg usbcore usb_common [ 554.819287] Pid: 6197, comm: chcpu Not tainted 3.4.2-rt10 #19 [ 554.819289] Call Trace: [ 554.819293] [] __schedule_bug+0x3d/0x42 [ 554.819297] [] __schedule+0x68/0x571 [ 554.819302] [] ? sched_clock+0x9/0xd [ 554.819306] [] ? sched_clock_local+0x11/0x12f [ 554.819312] [] schedule+0x60/0x70 [ 554.819316] [] schedule_timeout+0x17/0x160 [ 554.819320] [] wait_for_common+0xa3/0xff [ 554.819324] [] ? try_to_wake_up+0x391/0x391 [ 554.819328] [] wait_for_completion+0x12/0x14 [ 554.819332] [] kthread_stop+0x2d/0x4b [ 554.819337] [] destroy_worker+0x54/0x74 [ 554.819341] [] workqueue_cpu_down_callback+0x193/0x251 [ 554.819346] [] ? compute_batch_value+0x19/0x29 [ 554.819350] [] ? percpu_counter_hotcpu_callback+0x13/0x8b [ 554.819354] [] notifier_call_chain+0x26/0x48 [ 554.819358] [] __raw_notifier_call_chain+0xe/0x10 [ 554.819362] [] __cpu_notify+0x15/0x29 [ 554.819367] [] _cpu_down+0x158/0x2b4 [ 554.819371] [] cpu_down+0x25/0x34 [ 554.819375] [] store_online+0x29/0x70 [ 554.819378] [] ? acpi_processor_start+0xf7/0xf7 [ 554.819382] [] dev_attr_store+0x1b/0x23 [ 554.819386] [] sysfs_write_file+0xae/0xe7 [ 554.819390] [] vfs_write+0x8c/0x122 [ 554.819394] [] ? sysfs_poll+0x77/0x77 [ 554.819398] [] sys_write+0x3b/0x60 [ 554.819402] [] sysenter_do_call+0x12/0x2c [ 554.819421] BUG: scheduling while atomic: chcpu/6197/0x00000002 [ 554.819424] Modules linked in: loop rfcomm bnep btusb hid_microsoft usbhid hid uhci_hcd ehci_hcd 3c59x mii e1000e sg usbcore usb_common [ 554.819439] Pid: 6197, comm: chcpu Not tainted 3.4.2-rt10 #19 [ 554.819442] Call Trace: [ 554.819446] [] __schedule_bug+0x3d/0x42 [ 554.819450] [] __schedule+0x68/0x571 [ 554.819455] [] ? sched_clock+0x9/0xd [ 554.819459] [] ? sched_clock_local+0x11/0x12f [ 554.819463] [] schedule+0x60/0x70 [ 554.819466] [] schedule_timeout+0x17/0x160 [ 554.819471] [] wait_for_common+0xa3/0xff [ 554.819475] [] ? try_to_wake_up+0x391/0x391 [ 554.819478] [] wait_for_completion+0x12/0x14 [ 554.819482] [] kthread_stop+0x2d/0x4b [ 554.819486] [] destroy_worker+0x54/0x74 [ 554.819491] [] workqueue_cpu_down_callback+0x193/0x251 [ 554.819495] [] ? compute_batch_value+0x19/0x29 [ 554.819499] [] ? percpu_counter_hotcpu_callback+0x13/0x8b [ 554.819504] [] notifier_call_chain+0x26/0x48 [ 554.819508] [] __raw_notifier_call_chain+0xe/0x10 [ 554.819512] [] __cpu_notify+0x15/0x29 [ 554.819516] [] _cpu_down+0x158/0x2b4 [ 554.819521] [] cpu_down+0x25/0x34 [ 554.819524] [] store_online+0x29/0x70 [ 554.819528] [] ? acpi_processor_start+0xf7/0xf7 [ 554.819532] [] dev_attr_store+0x1b/0x23 [ 554.819536] [] sysfs_write_file+0xae/0xe7 [ 554.819540] [] vfs_write+0x8c/0x122 [ 554.819544] [] ? sysfs_poll+0x77/0x77 [ 554.819548] [] sys_write+0x3b/0x60 [ 554.819552] [] sysenter_do_call+0x12/0x2c -- 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/