Hi AndersBj,

I am trying to bring up the cluster again with this patch, and try to 
run IMM tests.
will let you know the result.

/Neel.

On Friday 12 September 2014 11:57 AM, Anders Björnerstedt wrote:
> The patch does not work at all for me.
> But I tested in UML.
>
> /AndersBj
>
> -----Original Message-----
> From: Neelakanta Reddy [mailto:[email protected]]
> Sent: den 11 september 2014 19:37
> To: Hans Feldt; Anders Björnerstedt
> Cc: [email protected]
> Subject: Re: [devel] [PATCH 1 of 1] imma: fix potential race with is_immnd_up 
> [#1050]
>
> Hi Hans,
>
> I tried to bring up the two controllers.
> The cluster came up.
> executed immomtests and immoitests.
> tests passed successfully.
>
> /Neel.
>
> On Thursday 11 September 2014 07:12 PM, Hans Feldt wrote:
>>    osaf/libs/agents/saf/imma/imma_mds.c |  7 ++++---
>>    1 files changed, 4 insertions(+), 3 deletions(-)
>>
>>
>> The variable is_immnd_up is read in API calls without holding a lock.
>> In the MDS IMMND UP callback it was set to true _before_ registration with 
>> the "auth
>>    server". This could allow clients sitting in a TRYAGAIN loop to
>> proceed before auth server registration has finished.
>>
>> Auth server registration is now done before setting is_immnd_up to true.
>>
>> diff --git a/osaf/libs/agents/saf/imma/imma_mds.c
>> b/osaf/libs/agents/saf/imma/imma_mds.c
>> --- a/osaf/libs/agents/saf/imma/imma_mds.c
>> +++ b/osaf/libs/agents/saf/imma/imma_mds.c
>> @@ -419,9 +419,6 @@ static uint32_t imma_mds_svc_evt(IMMA_CB
>>    
>>              case NCSMDS_UP:
>>                      TRACE_3("IMMND UP");
>> -                    
>> m_NCS_LOCK(&cb->immnd_sync_lock,NCS_LOCK_WRITE);/*special sync lock*/
>> -                    cb->is_immnd_up = true;
>> -                    cb->immnd_mds_dest = svc_evt->i_dest;
>>    
>>                      /* (Re-)connect and register our MDS dest with auth 
>> server in immnd */
>>                      if (mds_auth_server_connect(sockname,
>> @@ -430,6 +427,10 @@ static uint32_t imma_mds_svc_evt(IMMA_CB
>>                              LOG_WA("%s: mds_auth_server_connect failed", 
>> __FUNCTION__);
>>                      }
>>    
>> +                    
>> m_NCS_LOCK(&cb->immnd_sync_lock,NCS_LOCK_WRITE);/*special sync lock*/
>> +                    cb->immnd_mds_dest = svc_evt->i_dest;
>> +                    cb->is_immnd_up = true;
>> +
>>                      if (cb->immnd_sync_awaited == true)
>>                              m_NCS_SEL_OBJ_IND(&cb->immnd_sync_sel);
>>                      
>> m_NCS_UNLOCK(&cb->immnd_sync_lock,NCS_LOCK_WRITE);/*special sync
>> lock*/
>>
>> ----------------------------------------------------------------------
>> --------
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------------------------------------------------------------------------------
Want excitement?
Manually upgrade your production database.
When you want reliability, choose Perforce
Perforce version control. Predictably reliable.
http://pubads.g.doubleclick.net/gampad/clk?id=157508191&iu=/4140/ostg.clktrk
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