[Mauiusers] Segmentation fault in MResAdjustDRes

Bas van der Vlies basv at sara.nl
Wed Feb 25 03:24:09 MST 2009


Alexander Oltu wrote:
> Does anybody has any comments to this issue?
> 

Mostly you get an reaction form the clusterresources people. else use the
bugzilla to report your bug/enhancement:
 * http://www.clusterresources.com/bugzilla

For this moment it is down




> Regards,
> Alex.
> 
> On Wed, 11 Feb 2009 09:39:50 +0100
> Alexander Oltu wrote:
> 
>> We can't start Maui because it was sigfaulting right after start on:
>>
>> (gdb) r
>> Starting program: /opt/maui/sbin/maui 
>>
>> Program received signal SIGSEGV, Segmentation fault.
>> 0x00000032b7f721e3 in memcpy () from /lib64/tls/libc.so.6
>> (gdb) bt
>> #0  0x00000032b7f721e3 in memcpy () from /lib64/tls/libc.so.6
>> #1  0x000000000045b6ca in MResAdjustDRes (JName=0x0, ForceEval=0) at
>> MRes.c:7302 #2  0x000000000043e4c6 in MSchedProcessJobs
>> (OldDay=0x7fbffff0e0 "", GlobalSQ=0x7fbfffb0e0,
>> GlobalHQ=0x7fbfff70e0) at MSched.c:6955 #3  0x0000000000403a33 in
>> main (ArgC=1, ArgV=0x7fbffff208) at Server.c:192
>>
>> So we added JRE memory check into MRes.c and were able to start maui:
>>
>> --- ../BUILD/maui-3.2.6p21/src/moab/MRes.c      2008-12-09
>> 21:55:26.000000000 +0100 +++ MRes.c      2009-02-09
>> 17:02:25.397267670 +0100 @@ -7255,7 +7255,15 @@
>>  
>>    if (CRE == NULL)
>>      {
>> -    DBG(4,fCORE) DPrint("ALERT:    cannot allocate memory in %s\n",
>> +    DBG(4,fCORE) DPrint("ALERT:    cannot allocate memory for CRE in
>> %s\n",
>> +      FName);
>> +
>> +    return(FAILURE);
>> +    }
>> +
>> +  if (JRE == NULL)
>> +    {
>> +    DBG(4,fCORE) DPrint("ALERT:    cannot allocate memory for JRE in
>> %s\n", FName);
>>  
>>      return(FAILURE);
>>
>> Ofcourse after we started MAUI with this patch we got lot of "cannot
>> allocate memory for JRE". We are not sure what it can be related to
>> because there was no any changes in configuration files, so we
>> suspect maybe some job which leaded to this error?
>>
> 
> 


-- 
********************************************************************
*  Bas van der Vlies                    e-mail: basv at sara.nl       *
*  SARA - Academic Computing Services   Amsterdam, The Netherlands *
********************************************************************


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