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   Hi Matthias,

   Unfortunately I am not able to reproduce this occurence by myself

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In netx/src/TXNetConn.cxx:

==9343== 48 bytes in 2 blocks are definitely lost in loss record 360 of 563
==9343== at 0x4002BD79: __builtin_new (vg_replace_malloc.c:172)
==9343== by 0x63C19B4D: TXPhyConnection::BuildXMessage(ESendRecvOptions, bool, 
bool) (in 
/afs/slac.stanford.edu/package/cernroot/vol21/cvs040908_1418/Linux24RH72_i386_gcc2953/lib/libNetx.so)
==9343== by 0x63C10789: TXConnectionMgr::ReadMsg(short, ESendRecvOptions) (in 
/afs/slac.stanford.edu/package/cernroot/vol21/cvs040908_1418/Linux24RH72_i386_gcc2953/lib/libNetx.so)
==9343== by 0x63C1360E: TXNetConn::ReadPartialAnswer(XReqErrorType &, unsigned 
int &, ClientRequest *, bool, void **, TXNetConn::EThreeStateReadHandler &) (in 
/afs/slac.stanford.edu/package/cernroot/vol21/cvs040908_1418/Linux24RH72_i386_gcc2953/lib/libNetx.so)
==9343== by 0x63C12737: TXNetConn::ClientServerCmd(ClientRequest *, void const 
*, void **, void *, bool) (in 
/afs/slac.stanford.edu/package/cernroot/vol21/cvs040908_1418/Linux24RH72_i386_gcc2953/lib/libNetx.so)
==9343== by 0x63C12868: TXNetConn::SendGenCommand(ClientRequest *, void const *, 
void **, void *, bool, char *, ServerResponseHeader *) (in 
/afs/slac.stanford.edu/package/cernroot/vol21/cvs040908_1418/Linux24RH72_i386_gcc2953/lib/libNetx.so)


************************** 

    Is this something new to the ROOT version or was it there also with 
    XTNetFile (this part of the code was basically unchanged) ?


>The SafeDelete(cmdrespMex) in SendGenCommand does not always do its job, or 
> it's not always reached.

    Yes, it must be something like that, but by looking at the code it is not
    obvious to see why the cleanup should not always be complete ... It must be 
    some tricky situation.

    Fabrizio: any idea?

    Cheers, Gerri