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Date: Mon, 18 Jun 2012 14:33:34 +0200 From: Thomas Sattler <sattler@....uni-frankfurt.de> To: Linux Kernel Mailing List <linux-kernel@...r.kernel.org> CC: Ingo Molnar <mingo@...hat.com>, Thomas Gleixner <tglx@...utronix.de> Subject: Re: BUG: scheduling while atomic: chcpu/6197/0x00000002 Vanilla 3.4.3 seems to work, but 3.4.3-rt10 bugs too: [ 247.758134] BUG: scheduling while atomic: chcpu/2947/0x00000002 [ 247.758137] Modules linked in: loop rfcomm bnep btusb hid_microsoft usbhid hid 3c59x uhci_hcd mii ehci_hcd e1000e usbcore usb_common sg [ 247.758157] Pid: 2947, comm: chcpu Not tainted 3.4.3-rt10 #22 [ 247.758159] Call Trace: [ 247.758168] [<c103df4d>] __schedule_bug+0x3d/0x42 [ 247.758173] [<c1355394>] __schedule+0x68/0x571 [ 247.758179] [<c1045840>] ? enqueue_entity+0x313/0x3d8 [ 247.758183] [<c103e7da>] ? resched_task+0x3c/0x5a [ 247.758187] [<c1355942>] schedule+0x60/0x70 [ 247.758191] [<c1354962>] schedule_timeout+0x17/0x160 [ 247.758195] [<c103ed57>] ? check_preempt_curr+0x29/0x64 [ 247.758200] [<c135524d>] wait_for_common+0xa3/0xff [ 247.758204] [<c10412e2>] ? try_to_wake_up+0x391/0x391 [ 247.758208] [<c135532a>] wait_for_completion+0x12/0x14 [ 247.758213] [<c103781c>] kthread_create_on_node+0x71/0xb5 [ 247.758217] [<c102542c>] ? put_online_cpus+0x44/0x44 [ 247.758222] [<c1350101>] ? init_amd+0x50f/0x64f [ 247.758227] [<c13471ff>] _cpu_down+0x106/0x2b4 [ 247.758231] [<c102542c>] ? put_online_cpus+0x44/0x44 [ 247.758236] [<c13473d2>] cpu_down+0x25/0x34 [ 247.758240] [<c1348a16>] store_online+0x29/0x70 [ 247.758244] [<c13489ed>] ? acpi_processor_start+0xf7/0xf7 [ 247.758248] [<c127b06f>] dev_attr_store+0x1b/0x23 [ 247.758254] [<c10eb6ce>] sysfs_write_file+0xae/0xe7 [ 247.758259] [<c10ab946>] vfs_write+0x8c/0x122 [ 247.758263] [<c10eb620>] ? sysfs_poll+0x77/0x77 [ 247.758267] [<c10abb97>] sys_write+0x3b/0x60 [ 247.758272] [<c1357863>] sysenter_do_call+0x12/0x2c [ 247.758297] BUG: scheduling while atomic: chcpu/2947/0x00000002 [ 247.758299] Modules linked in: loop rfcomm bnep btusb hid_microsoft usbhid hid 3c59x uhci_hcd mii ehci_hcd e1000e usbcore usb_common sg [ 247.758315] Pid: 2947, comm: chcpu Not tainted 3.4.3-rt10 #22 [ 247.758317] Call Trace: [ 247.758322] [<c103df4d>] __schedule_bug+0x3d/0x42 [ 247.758326] [<c1355394>] __schedule+0x68/0x571 [ 247.758331] [<c1356ac1>] ? _raw_spin_unlock_irqrestore+0x1a/0x2f [ 247.758335] [<c103a992>] ? __hrtimer_start_range_ns+0x2cf/0x2f6 [ 247.758340] [<c1355942>] schedule+0x60/0x70 [ 247.758344] [<c1354e4a>] schedule_hrtimeout_range_clock+0xc5/0xec [ 247.758348] [<c103a202>] ? update_rmtp+0x68/0x68 [ 247.758352] [<c1354e7b>] schedule_hrtimeout_range+0xa/0xc [ 247.758356] [<c1354e89>] schedule_hrtimeout+0xc/0xe [ 247.758361] [<c103f197>] wait_task_inactive+0xc5/0xd6 [ 247.758365] [<c1037773>] kthread_bind+0x13/0x4b [ 247.758369] [<c134721a>] _cpu_down+0x121/0x2b4 [ 247.758374] [<c13473d2>] cpu_down+0x25/0x34 [ 247.758378] [<c1348a16>] store_online+0x29/0x70 [ 247.758381] [<c13489ed>] ? acpi_processor_start+0xf7/0xf7 [ 247.758385] [<c127b06f>] dev_attr_store+0x1b/0x23 [ 247.758390] [<c10eb6ce>] sysfs_write_file+0xae/0xe7 [ 247.758394] [<c10ab946>] vfs_write+0x8c/0x122 [ 247.758398] [<c10eb620>] ? sysfs_poll+0x77/0x77 [ 247.758402] [<c10abb97>] sys_write+0x3b/0x60 [ 247.758406] [<c1357863>] sysenter_do_call+0x12/0x2c [ 247.761021] BUG: scheduling while atomic: chcpu/2947/0x00000002 [ 247.761024] Modules linked in: loop rfcomm bnep btusb hid_microsoft usbhid hid 3c59x uhci_hcd mii ehci_hcd e1000e usbcore usb_common sg [ 247.761040] Pid: 2947, comm: chcpu Not tainted 3.4.3-rt10 #22 [ 247.761042] Call Trace: [ 247.761048] [<c103df4d>] __schedule_bug+0x3d/0x42 [ 247.761052] [<c1355394>] __schedule+0x68/0x571 [ 247.761058] [<c1008017>] ? sched_clock+0x9/0xd [ 247.761062] [<c10428f5>] ? sched_clock_local+0x11/0x12f [ 247.761067] [<c1355942>] schedule+0x60/0x70 [ 247.761070] [<c1354962>] schedule_timeout+0x17/0x160 [ 247.761075] [<c135524d>] wait_for_common+0xa3/0xff [ 247.761079] [<c10412e2>] ? try_to_wake_up+0x391/0x391 [ 247.761083] [<c135532a>] wait_for_completion+0x12/0x14 [ 247.761087] [<c1347229>] _cpu_down+0x130/0x2b4 [ 247.761092] [<c13473d2>] cpu_down+0x25/0x34 [ 247.761095] [<c1348a16>] store_online+0x29/0x70 [ 247.761099] [<c13489ed>] ? acpi_processor_start+0xf7/0xf7 [ 247.761103] [<c127b06f>] dev_attr_store+0x1b/0x23 [ 247.761108] [<c10eb6ce>] sysfs_write_file+0xae/0xe7 [ 247.761112] [<c10ab946>] vfs_write+0x8c/0x122 [ 247.761116] [<c10eb620>] ? sysfs_poll+0x77/0x77 [ 247.761120] [<c10abb97>] sys_write+0x3b/0x60 [ 247.761124] [<c1357863>] sysenter_do_call+0x12/0x2c [ 247.761159] BUG: scheduling while atomic: chcpu/2947/0x00000002 [ 247.761161] Modules linked in: loop rfcomm bnep btusb hid_microsoft usbhid hid 3c59x uhci_hcd mii ehci_hcd e1000e usbcore usb_common sg [ 247.761177] Pid: 2947, comm: chcpu Not tainted 3.4.3-rt10 #22 [ 247.761179] Call Trace: [ 247.761184] [<c103df4d>] __schedule_bug+0x3d/0x42 [ 247.761188] [<c1355394>] __schedule+0x68/0x571 [ 247.761193] [<c1008017>] ? sched_clock+0x9/0xd [ 247.761197] [<c10428f5>] ? sched_clock_local+0x11/0x12f [ 247.761201] [<c1355942>] schedule+0x60/0x70 [ 247.761205] [<c1354962>] schedule_timeout+0x17/0x160 [ 247.761210] [<c135524d>] wait_for_common+0xa3/0xff [ 247.761214] [<c10412e2>] ? try_to_wake_up+0x391/0x391 [ 247.761218] [<c135532a>] wait_for_completion+0x12/0x14 [ 247.761222] [<c1037742>] kthread_stop+0x2d/0x4b [ 247.761227] [<c10330fa>] destroy_worker+0x54/0x74 [ 247.761231] [<c1348d97>] workqueue_cpu_down_callback+0x193/0x251 [ 247.761236] [<c1185d7d>] ? compute_batch_value+0x19/0x29 [ 247.761240] [<c1353d7e>] ? percpu_counter_hotcpu_callback+0x13/0x8b [ 247.761245] [<c103b6b9>] notifier_call_chain+0x26/0x48 [ 247.761249] [<c103b6fd>] __raw_notifier_call_chain+0xe/0x10 [ 247.761253] [<c1025331>] __cpu_notify+0x15/0x29 [ 247.761257] [<c1347251>] _cpu_down+0x158/0x2b4 [ 247.761262] [<c13473d2>] cpu_down+0x25/0x34 [ 247.761266] [<c1348a16>] store_online+0x29/0x70 [ 247.761269] [<c13489ed>] ? acpi_processor_start+0xf7/0xf7 [ 247.761273] [<c127b06f>] dev_attr_store+0x1b/0x23 [ 247.761278] [<c10eb6ce>] sysfs_write_file+0xae/0xe7 [ 247.761282] [<c10ab946>] vfs_write+0x8c/0x122 [ 247.761286] [<c10eb620>] ? sysfs_poll+0x77/0x77 [ 247.761290] [<c10abb97>] sys_write+0x3b/0x60 [ 247.761294] [<c1357863>] sysenter_do_call+0x12/0x2c [ 247.761301] BUG: scheduling while atomic: chcpu/2947/0x00000002 [ 247.761303] Modules linked in: loop rfcomm bnep btusb hid_microsoft usbhid hid 3c59x uhci_hcd mii ehci_hcd e1000e usbcore usb_common sg [ 247.761319] Pid: 2947, comm: chcpu Not tainted 3.4.3-rt10 #22 [ 247.761322] Call Trace: [ 247.761326] [<c103df4d>] __schedule_bug+0x3d/0x42 [ 247.761330] [<c1355394>] __schedule+0x68/0x571 [ 247.761335] [<c1008017>] ? sched_clock+0x9/0xd [ 247.761341] [<c10428f5>] ? sched_clock_local+0x11/0x12f [ 247.761345] [<c1355942>] schedule+0x60/0x70 [ 247.761349] [<c1354962>] schedule_timeout+0x17/0x160 [ 247.761353] [<c135524d>] wait_for_common+0xa3/0xff [ 247.761357] [<c10412e2>] ? try_to_wake_up+0x391/0x391 [ 247.761361] [<c135532a>] wait_for_completion+0x12/0x14 [ 247.761365] [<c1037742>] kthread_stop+0x2d/0x4b [ 247.761369] [<c10330fa>] destroy_worker+0x54/0x74 [ 247.761373] [<c1348d97>] workqueue_cpu_down_callback+0x193/0x251 [ 247.761378] [<c1185d7d>] ? compute_batch_value+0x19/0x29 [ 247.761382] [<c1353d7e>] ? percpu_counter_hotcpu_callback+0x13/0x8b [ 247.761387] [<c103b6b9>] notifier_call_chain+0x26/0x48 [ 247.761391] [<c103b6fd>] __raw_notifier_call_chain+0xe/0x10 [ 247.761395] [<c1025331>] __cpu_notify+0x15/0x29 [ 247.761399] [<c1347251>] _cpu_down+0x158/0x2b4 [ 247.761404] [<c13473d2>] cpu_down+0x25/0x34 [ 247.761407] [<c1348a16>] store_online+0x29/0x70 [ 247.761411] [<c13489ed>] ? acpi_processor_start+0xf7/0xf7 [ 247.761415] [<c127b06f>] dev_attr_store+0x1b/0x23 [ 247.761420] [<c10eb6ce>] sysfs_write_file+0xae/0xe7 [ 247.761424] [<c10ab946>] vfs_write+0x8c/0x122 [ 247.761428] [<c10eb620>] ? sysfs_poll+0x77/0x77 [ 247.761432] [<c10abb97>] sys_write+0x3b/0x60 [ 247.761436] [<c1357863>] sysenter_do_call+0x12/0x2c [ 247.761455] BUG: scheduling while atomic: chcpu/2947/0x00000002 [ 247.761457] Modules linked in: loop rfcomm bnep btusb hid_microsoft usbhid hid 3c59x uhci_hcd mii ehci_hcd e1000e usbcore usb_common sg [ 247.761473] Pid: 2947, comm: chcpu Not tainted 3.4.3-rt10 #22 [ 247.761475] Call Trace: [ 247.761479] [<c103df4d>] __schedule_bug+0x3d/0x42 [ 247.761483] [<c1355394>] __schedule+0x68/0x571 [ 247.761489] [<c1008017>] ? sched_clock+0x9/0xd [ 247.761492] [<c10428f5>] ? sched_clock_local+0x11/0x12f [ 247.761497] [<c1355942>] schedule+0x60/0x70 [ 247.761501] [<c1354962>] schedule_timeout+0x17/0x160 [ 247.761505] [<c135524d>] wait_for_common+0xa3/0xff [ 247.761509] [<c10412e2>] ? try_to_wake_up+0x391/0x391 [ 247.761513] [<c135532a>] wait_for_completion+0x12/0x14 [ 247.761517] [<c1037742>] kthread_stop+0x2d/0x4b [ 247.761521] [<c10330fa>] destroy_worker+0x54/0x74 [ 247.761525] [<c1348d97>] workqueue_cpu_down_callback+0x193/0x251 [ 247.761530] [<c1185d7d>] ? compute_batch_value+0x19/0x29 [ 247.761534] [<c1353d7e>] ? percpu_counter_hotcpu_callback+0x13/0x8b [ 247.761539] [<c103b6b9>] notifier_call_chain+0x26/0x48 [ 247.761543] [<c103b6fd>] __raw_notifier_call_chain+0xe/0x10 [ 247.761547] [<c1025331>] __cpu_notify+0x15/0x29 [ 247.761551] [<c1347251>] _cpu_down+0x158/0x2b4 [ 247.761556] [<c13473d2>] cpu_down+0x25/0x34 [ 247.761560] [<c1348a16>] store_online+0x29/0x70 [ 247.761563] [<c13489ed>] ? acpi_processor_start+0xf7/0xf7 [ 247.761567] [<c127b06f>] dev_attr_store+0x1b/0x23 [ 247.761572] [<c10eb6ce>] sysfs_write_file+0xae/0xe7 [ 247.761576] [<c10ab946>] vfs_write+0x8c/0x122 [ 247.761580] [<c10eb620>] ? sysfs_poll+0x77/0x77 [ 247.761584] [<c10abb97>] sys_write+0x3b/0x60 [ 247.761588] [<c1357863>] sysenter_do_call+0x12/0x2c -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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