[Harbour] Help with segfaults with MT and hb_hrbload

[Lorenzo Fiorini]

I'm trying to move an ST http embedded server to MT.
The ST version work since years  and it mainly load and execute HRBs.

The problem began if I ask for a multiple request.

What I mean is that:

ab -n30 -c1 http://localhost:8089/test.hrb OK
ab -n30 -c2 http://localhost:8089/test.hrb ERRORS like:

Unrecoverable error 6005: Exception SIGSEGV at address 0x20202020
Called from HRBMAIN(62) in pcode.hrb
Called from PROCESSCALL(617) in ../dbl/httpsrvm.prg

Unrecoverable error 9014: Unsupported VM opcode
Called from HRBMAIN(106) in pcode.hrb
Called from PROCESSCALL(617) in ../dbl/httpsrvm.prg

Unrecoverable error 6005: Exception SIGSEGV at address (nil)
Called from HRBMAIN(106) in pcode.hrb
Called from PROCESSCALL(617) in ../dbl/httpsrvm.prg

Unrecoverable error 6005: Exception SIGSEGV at address 0xd
Called from __MVPUBLIC(0)
Called from PROCESSCALL(453) in ../dbl/httpsrvm.prg

Am I missing sth?

The code is like:

...
   elseif cExt == ".hrb"
      cBinFile := oServer:cBinRoot + cName + cExt
      if !file( cBinFile )
         oResponse:Flush( 404, "Not found", "text/html", "404 File: "
+ cBinFile + " not found" )
      else
         begin sequence with { |e| LogError( e, oResponse, cBinFile ) }
            if !empty( pHRB := hb_hrbload( cBinFile ) )
               xResult := hrbmain()
               if ISCHARACTER( xResult )
                  oResponse:Flush( 200, "OK",, xResult )
               endif
            endif
         always
            if !empty( pHRB )
               hb_hrbunload( pHRB )
            endif
         endsequence
      endif
...

best regards,
Lorenzo