Re: 3.10.10: WARNING: at kernel/smp.c:181 generic_smp_call_function_single_interrupt+0x11c/0x130()

[Jiang Liu (Gerry)]

Hi Martin,
	I don't think the mentioned patch could solve your problem.
The warning messages implies some issues in CPU hotplug, need more
investigation.
Regards!
Gerry

On 2013/9/11 6:15, Martin MOKREJÅ wrote:
> Hi,
>    I got this stacktrace shortly after bootup. I am disabling the two
> hyper-threaded cores in my startup scripts so possibly that was the
> trigger, at least per earlier report from Fernando Soto on Jul 08 2013:
>    https://lkml.org/lkml/2013/7/8/301
>
>    I don't see his name in this patch series which Google bring to me:
>
> Re: [PATCH v1 2/3] SMP: simpilify function generic_smp_call_function_single_interrupt()
>
> does the patch fix the issue? Are you aware of the issue? That is why
> I CCed all of you. ;-) Please, somebody add to Cc: also Fernando, I cannot
> find his email address in SPAM-protected email archives. surely you have
> his original email in your Inbox or Trash. Thanks.
>
>
> My stacktrace from 3.10.10 is:
>
> [   22.908990] ------------[ cut here ]------------
> [   22.909011] WARNING: at kernel/smp.c:181 generic_smp_call_function_single_interrupt+0x11c/0x130()
> [   22.909021] Modules linked in: iwldvm iwlwifi
> [   22.909029] CPU: 2 PID: 17 Comm: migration/2 Not tainted 3.10.10-default-pciehp #2
> [   22.909032] Hardware name: Dell Inc. Vostro 3550/, BIOS A11 08/03/2012
> [   22.909044]  0000000000000009 ffff88019fb03f08 ffffffff817f9734 ffff88019fb03f48
> [   22.909054]  ffffffff8109698b ffff8801979adfd8 ffff88019fb13d80 0000000000000004
> [   22.909064]  ffff88019fb03f68 ffff88019893bf01 0000000000000000 ffff88019fb03f58
> [   22.909066] Call Trace:
> [   22.909083]  <IRQ>  [<ffffffff817f9734>] dump_stack+0x19/0x1b
> [   22.909093]  [<ffffffff8109698b>] warn_slowpath_common+0x6b/0xa0
> [   22.909102]  [<ffffffff810969d5>] warn_slowpath_null+0x15/0x20
> [   22.909111]  [<ffffffff810f2e6c>] generic_smp_call_function_single_interrupt+0x11c/0x130
> [   22.909120]  [<ffffffff81025772>] smp_call_function_single_interrupt+0x22/0x40
> [   22.909131]  [<ffffffff818029ef>] call_function_single_interrupt+0x6f/0x80
> [   22.909146]  <EOI>  [<ffffffff810ff5e1>] ? stop_machine_cpu_stop+0xb1/0xf0
> [   22.909155]  [<ffffffff810ff530>] ? cpu_stop_queue_work+0xa0/0xa0
> [   22.909164]  [<ffffffff810ff6a4>] cpu_stopper_thread+0x84/0x140
> [   22.909172]  [<ffffffff810ff8bc>] ? cpu_stop_should_run+0x2c/0x50
> [   22.909181]  [<ffffffff81800d2a>] ? _raw_spin_unlock_irqrestore+0x3a/0x70
> [   22.909188]  [<ffffffff810ec1b5>] ? trace_hardirqs_on_caller+0x105/0x1d0
> [   22.909193]  [<ffffffff810ec28d>] ? trace_hardirqs_on+0xd/0x10
> [   22.909199]  [<ffffffff810c452f>] smpboot_thread_fn+0xff/0x190
> [   22.909203]  [<ffffffff810c4430>] ? lg_global_unlock+0x70/0x70
> [   22.909207]  [<ffffffff810bcac5>] kthread+0xe5/0xf0
> [   22.909212]  [<ffffffff810bc9e0>] ? flush_kthread_worker+0x150/0x150
> [   22.909218]  [<ffffffff818018ec>] ret_from_fork+0x7c/0xb0
> [   22.909222]  [<ffffffff810bc9e0>] ? flush_kthread_worker+0x150/0x150
> [   22.909226] ---[ end trace a42128a3e17e6268 ]---
> [   22.909261] smpboot: CPU 2 is now offline
> [   23.044977] smpboot: CPU 3 is now offline
>
>
> Martin
>
> .


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