[gentoo-user] what does this mean:rcu_sched detected stalls on CPUs/tasks

[gentoo-user] what does this mean:rcu_sched detected stalls on CPUs/tasks

[东方巽雷]

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My pc have a random boot problem.I can hardly make it clear when will occur.
The kern.log shows  INFO: rcu_sched detected stalls on CPUs/tasks: { 0}
(detected by 1, t=10002 jiffies, g=18446744073709551325,
c=18446744073709551324, q=13).
When this happen on boot,the kernel seems hung and will take about one or
two minuts,then continue booting as normal.Does anyone know the reason?

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Re: [gentoo-user] what does this mean:rcu_sched detected stalls on CPUs/tasks

[Alan McKinnon]

On 25/09/2013 12:56, 东方巽雷 wrote:
> My pc have a random boot problem.I can hardly make it clear when will occur.
> The kern.log shows  INFO: rcu_sched detected stalls on CPUs/tasks: { 0}
> (detected by 1, t=10002 jiffies, g=18446744073709551325,
> c=18446744073709551324, q=13).
> When this happen on boot,the kernel seems hung and will take about one
> or two minuts,then continue booting as normal.Does anyone know the reason?


Google search string: INFO: rcu_sched detected stalls on CPUs/tasks:

First hit: https://www.kernel.org/doc/Documentation/RCU/stallwarn.txt

That's the kernel doc that describes the relevant system.



-- 
Alan McKinnon
alan.mckinnon@gmail.com

Re: [gentoo-user] what does this mean:rcu_sched detected stalls on CPUs/tasks

[东方巽雷]

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Yes,I have search some webpages.But not sure if this question can be solved
and how to be solved.


2013/9/25 Alan McKinnon <alan.mckinnon@gmail.com>

> On 25/09/2013 12:56, 东方巽雷 wrote:
> > My pc have a random boot problem.I can hardly make it clear when will
> occur.
> > The kern.log shows  INFO: rcu_sched detected stalls on CPUs/tasks: { 0}
> > (detected by 1, t=10002 jiffies, g=18446744073709551325,
> > c=18446744073709551324, q=13).
> > When this happen on boot,the kernel seems hung and will take about one
> > or two minuts,then continue booting as normal.Does anyone know the
> reason?
>
>
> Google search string: INFO: rcu_sched detected stalls on CPUs/tasks:
>
> First hit: https://www.kernel.org/doc/Documentation/RCU/stallwarn.txt
>
> That's the kernel doc that describes the relevant system.
>
>
>
> --
> Alan McKinnon
> alan.mckinnon@gmail.com
>
>
>

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Re: [gentoo-user] what does this mean:rcu_sched detected stalls on CPUs/tasks

[Alan McKinnon]

On 25/09/2013 16:31, 东方巽雷 wrote:
> Yes,I have search some webpages.But not sure if this question can be
> solved and how to be solved.

But did you read THAT page in the kernel docs?


p.s. 2 things,

- please do not top-post
- please do not post in HTML


> 
> 
> 2013/9/25 Alan McKinnon <alan.mckinnon@gmail.com
> <mailto:alan.mckinnon@gmail.com>>
> 
>     On 25/09/2013 12:56, 东方巽雷 wrote:
>     > My pc have a random boot problem.I can hardly make it clear when
>     will occur.
>     > The kern.log shows  INFO: rcu_sched detected stalls on CPUs/tasks:
>     { 0}
>     > (detected by 1, t=10002 jiffies, g=18446744073709551325,
>     > c=18446744073709551324, q=13).
>     > When this happen on boot,the kernel seems hung and will take about one
>     > or two minuts,then continue booting as normal.Does anyone know the
>     reason?
> 
> 
>     Google search string: INFO: rcu_sched detected stalls on CPUs/tasks:
> 
>     First hit: https://www.kernel.org/doc/Documentation/RCU/stallwarn.txt
> 
>     That's the kernel doc that describes the relevant system.
> 
> 
> 
>     --
>     Alan McKinnon
>     alan.mckinnon@gmail.com <mailto:alan.mckinnon@gmail.com>
> 
> 
> 


-- 
Alan McKinnon
alan.mckinnon@gmail.com