[Tcl-bugs] [ tcl-Bugs-733126 ] Memory leak while creating and deleting interpreters

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Bugs item #733126, was opened at 2003-05-06 00:44
Message generated for change (Comment added) made by hobbs
You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=110894&aid=733126&group_id=10894

Category: None
Group: = 8.3.1
>Status: Pending
>Resolution: Out of Date
Priority: 5
Submitted By: Nobody/Anonymous (nobody)
Assigned to: Nobody/Anonymous (nobody)
Summary: Memory leak while creating and deleting interpreters

Initial Comment:
I am using TCL 8.3.1. Recently when I was trying to corner a memory leak 
issue it was found that the leak was occurring in the TCL library while 
creating and deleting interpreters. The following is the stack traces
of the leak from purify.

Platform : Solaris 2.8


>>>>
MLK: 512 bytes leaked in 16 blocks
  * This memory was allocated from:
        malloc         [rtlib.o]
        TclpAlloc      [tclAlloc.c:671]
        Tcl_Alloc      [tclCkalloc.c:846]
        Tcl_GetThreadData [tclThread.c:101]
        Tcl_CreateChannel [tclIO.c:937]
        TclpOpenFileChannel [tclUnixChan.c:1375]
  * Block of 32 bytes (16 times); last block at 0xdbcd38

MLK: 476 bytes leaked in 17 blocks
  * This memory was allocated from:
        malloc         [rtlib.o]
        TclpAlloc      [tclAlloc.c:671]
        Tcl_Alloc      [tclCkalloc.c:846]
        Tcl_GetThreadData [tclThread.c:101]
        InitTimer      [tclTimer.c:158]
        Tcl_DeleteTimerHandler [tclTimer.c:296]
  * Block of 28 bytes (17 times); last block at 0xddd3e8

MLK: 340 bytes leaked in 17 blocks
  * This memory was allocated from:
        malloc         [rtlib.o]
        TclpAlloc      [tclAlloc.c:671]
        Tcl_Alloc      [tclCkalloc.c:846]
        Tcl_GetThreadData [tclThread.c:101]
        Tcl_AsyncReady [tclAsync.c:331]
        EvalObjv       [tclParse.c:934]
  * Block of 20 bytes (17 times); last block at 0xdf3980

MLK: 204 bytes leaked in 17 blocks
  * This memory was allocated from:
        malloc         [rtlib.o]
        TclpAlloc      [tclAlloc.c:671]
        Tcl_Alloc      [tclCkalloc.c:846]
        Tcl_CreateThreadExitHandler [tclEvent.c:493]
        InitTimer      [tclTimer.c:160]
        Tcl_DeleteTimerHandler [tclTimer.c:296]
  * Block of 12 bytes (17 times); last block at 0xdf3430

MLK: 204 bytes leaked in 17 blocks
  * This memory was allocated from:
        malloc         [rtlib.o]
        TclpAlloc      [tclAlloc.c:671]
        Tcl_Alloc      [tclCkalloc.c:846]
        Tcl_GetThreadData [tclThread.c:101]
        TclInitSubsystems [tclEvent.c:738]
        Tcl_CreateInterp [tclBasic.c:281]
  * Block of 12 bytes (17 times); last block at 0xdb0d30

MLK: 68 bytes leaked in 17 blocks
  * This memory was allocated from:
        malloc         [rtlib.o]
        TclpAlloc      [tclAlloc.c:671]
        Tcl_Alloc      [tclCkalloc.c:846]
        Tcl_GetThreadData [tclThread.c:101]
        TclpOpenFileChannel [tclUnixChan.c:1296]
        Tcl_OpenFileChannel [tclIOUtil.c:556]
  * Block of 4 bytes (17 times); last block at 0xcec828

MLK: 32 bytes leaked at 0xcc4ed0
  * This memory was allocated from:
        malloc         [rtlib.o]
        TclpAlloc      [tclAlloc.c:671]
        Tcl_Alloc      [tclCkalloc.c:846]
        Tcl_GetThreadData [tclThread.c:101]
        TclInitIOSubsystem [tclIO.c:161]
        TclInitSubsystems [tclEvent.c:724]


<<<<



----------------------------------------------------------------------

>Comment By: Jeffrey Hobbs (hobbs)
Date: 2003-05-06 01:57

Message:
Logged In: YES 
user_id=72656

Please verify with latest Tcl before reporting.

----------------------------------------------------------------------

You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=110894&aid=733126&group_id=10894