[LTP] [Issue Report] the stress test which includes nfs test with client and server under same machine

[LTP] [Issue Report] the stress test which includes nfs test with client and server under same machine

[Chen Gang]

Hello ltp-list@lists.sorceforge.net 

1) Firstly:

   A) LTP is a very useful tools for Asianux to test Linux kernel.
   B) Thank LTP very much.
   C) During test, Asianux find an issue about LTP
      Asianux think maybe it will be better to let LTP know about it.


2) Description:

   A) with default configuration for /opt/ltp/testscripts/ltpstress.sh
   B) it tests the nfs with client and server under the same machine
   C) it is an known issue about it.

3) Reference

   A) Red Hat Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=858978
   B) LKVM Mailing list: https://lkml.org/lkml/2012/10/16/1  (at tail)

> Running the client and server on the same machine is likely to deadlock
> due to memory pressure issues. The client needs to be able to _increase_
> memory pressure on the server in order to reduce its own pressure. That
> doesn't work well when client == server.



  At last, hope these information are useful for LTP,  thanks.

-- 
Chen Gang

Asianux Corporation

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Re: [LTP] [Issue Report] the stress test which includes nfs test with client and server under same machine

[Chen Gang]

oh, I am very sorry:

  the original reference link to Red Hat Bugzilla is not correct;
  the correct reference link: https://bugzilla.redhat.com/show_bug.cgi?id=836095

gchen.


于 2012年11月05日 17:39, Chen Gang 写道:
> Hello ltp-list@lists.sorceforge.net 
> 
> 1) Firstly:
> 
>    A) LTP is a very useful tools for Asianux to test Linux kernel.
>    B) Thank LTP very much.
>    C) During test, Asianux find an issue about LTP
>       Asianux think maybe it will be better to let LTP know about it.
> 
> 
> 2) Description:
> 
>    A) with default configuration for /opt/ltp/testscripts/ltpstress.sh
>    B) it tests the nfs with client and server under the same machine
>    C) it is an known issue about it.
> 
> 3) Reference
> 
>    A) Red Hat Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=858978
>    B) LKVM Mailing list: https://lkml.org/lkml/2012/10/16/1  (at tail)
> 
>> Running the client and server on the same machine is likely to deadlock
>> due to memory pressure issues. The client needs to be able to _increase_
>> memory pressure on the server in order to reduce its own pressure. That
>> doesn't work well when client == server.
> 
> 
> 
>   At last, hope these information are useful for LTP,  thanks.
> 


-- 
Chen Gang

Asianux Corporation

------------------------------------------------------------------------------
LogMeIn Central: Instant, anywhere, Remote PC access and management.
Stay in control, update software, and manage PCs from one command center
Diagnose problems and improve visibility into emerging IT issues
Automate, monitor and manage. Do more in less time with Central
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Re: [LTP] [Issue Report] the stress test which includes nfs test with client and server under same machine

[Wanlong Gao]

On 11/05/2012 05:39 PM, Chen Gang wrote:
> Hello ltp-list@lists.sorceforge.net 
> 
> 1) Firstly:
> 
>    A) LTP is a very useful tools for Asianux to test Linux kernel.
>    B) Thank LTP very much.
>    C) During test, Asianux find an issue about LTP
>       Asianux think maybe it will be better to let LTP know about it.
> 
> 
> 2) Description:
> 
>    A) with default configuration for /opt/ltp/testscripts/ltpstress.sh
>    B) it tests the nfs with client and server under the same machine
>    C) it is an known issue about it.
> 
> 3) Reference
> 
>    A) Red Hat Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=858978
>    B) LKVM Mailing list: https://lkml.org/lkml/2012/10/16/1  (at tail)
> 
>> Running the client and server on the same machine is likely to deadlock
>> due to memory pressure issues. The client needs to be able to _increase_
>> memory pressure on the server in order to reduce its own pressure. That
>> doesn't work well when client == server.
> 
> 
> 
>   At last, hope these information are useful for LTP,  thanks.


Thank you very much for reporting this issue, we will take care of this.
And if you like, bug-fix-patches are very welcome.

Thanks,
Wanlong Gao

> 


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Re: [LTP] [Issue Report] the stress test which includes nfs test with client and server under same machine

[Chen Gang]

于 2012年11月12日 09:16, Wanlong Gao 写道:
> On 11/05/2012 05:39 PM, Chen Gang wrote:
>> Hello ltp-list@lists.sorceforge.net 
>>
>> 1) Firstly:
>>
>>    A) LTP is a very useful tools for Asianux to test Linux kernel.
>>    B) Thank LTP very much.
>>    C) During test, Asianux find an issue about LTP
>>       Asianux think maybe it will be better to let LTP know about it.
>>
>>
>> 2) Description:
>>
>>    A) with default configuration for /opt/ltp/testscripts/ltpstress.sh
>>    B) it tests the nfs with client and server under the same machine
>>    C) it is an known issue about it.
>>
>> 3) Reference
>>
>>    A) Red Hat Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=858978
>>    B) LKVM Mailing list: https://lkml.org/lkml/2012/10/16/1  (at tail)
>>
>>> Running the client and server on the same machine is likely to deadlock
>>> due to memory pressure issues. The client needs to be able to _increase_
>>> memory pressure on the server in order to reduce its own pressure. That
>>> doesn't work well when client == server.
>>
>>
>>
>>   At last, hope these information are useful for LTP,  thanks.
> 
> 
> Thank you very much for reporting this issue, we will take care of this.
> And if you like, bug-fix-patches are very welcome.
>

  If time resource permits me, I will try.

  Asianux need provide their contributes to the Open Source,
  Just as Asianux have already get benefits from the Open Source.


> Thanks,
> Wanlong Gao
> 
>>
> 
> 
> 


-- 
Chen Gang

Asianux Corporation

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