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[Tcl-bugs] [ tcl-Bugs-543549 ] Improper memory clean up at exit
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From: <no...@so...> - 2002-05-30 17:38:11
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Bugs item #543549, was opened at 2002-04-14 01:04 You can respond by visiting: http://sourceforge.net/tracker/?func=detail&atid=110894&aid=543549&group_id=10894 >Category: 48. Portability Support Group: 8.4a4 Status: Open Resolution: Accepted Priority: 5 Submitted By: Nobody/Anonymous (nobody) Assigned to: Jeffrey Hobbs (hobbs) Summary: Improper memory clean up at exit Initial Comment: Even compiled with -DPURIFY and with the exit redefinition "magic" from http://mini.net/cgi-bin/wikit/3248.html (which ensures, that even the main interp is deleted, which normaly not happens) tcl 8.4a4 doesn't clean up it's memory completely at exit, even with the smallest possible script. Using mpatrol, I found in total 18 not freed allocations. I'll append stack traces for all of this allocations with references to the code at the end. I think, all of them doesn't really hurt, because it's (limitied) memory, that is allocated during special initializations. As far as I can see, there is no way, to 'exploit' any of these leaks to write scripts, that results in an always growing tclsh process. Because of this, I think this has really (very) low priority. It's only a bit annoying "noise" for those, who try to memory debug the core. One problem, for example, is the static Tcl_Obj *tclStartupScriptPath in TclMain.c, which is filled, if the tclsh is called with a script, but it's never freed. Freeing tclStartupScriptPath could be easily done with something like if (TclGetStartupScriptPath()) { Tcl_DecrRefCount (TclGetStartupScriptPath()); } befor the Tcl_Release((ClientData) interp); Tcl_Exit(exitCode); at the end of Tcl_Main(). An other problem is, that the static Tcl_Encoding structure systemEncoding (static to tclEncoding.c) is filled, during the initializing, but never properly freed. That should also easily fixable, with a new trivial function in tclEncoding.c, like this void TclFreeSystemEncoding() { Tcl_FreeEncoding (systemEncoding); } the necessary declaration at the top of tclMain.c EXTERN void TclFreeSystemEncoding(); and a call to that at the same place, as above. With this changes, most of the above noted 18 not freed allocations are properly freed, rolf 0x08104380 (268 bytes) {malloc:563:0} [TclpAlloc|/home/tmp/tcltk/tcl8.4a4/unix/./../generic/tclAlloc.c|672] 0x080C77A9 TclpAlloc+25 at ./../generic/tclAlloc.c:673 0x0806B03B Tcl_Alloc+27 at ./../generic/tclCkalloc.c:1002 0x08085F34 LoadTableEncoding+244 at ./../generic/tclEncoding.c:1389 0x08085CE6 LoadEncodingFile+390 at ./../generic/tclEncoding.c:1236 0x080851DE Tcl_GetEncoding+62 at ./../generic/tclEncoding.c:418 0x080854F2 Tcl_SetSystemEncoding+34 at ./../generic/tclEncoding.c:677 0x08064922 TclpSetInitialEncodings+466 at ./../unix/tclUnixInit.c:573 0x080874C0 TclFindEncodings+128 at ./../generic/tclEncoding.c:2792 0x08085AE2 Tcl_FindExecutable+114 at ./../generic/tclEncoding.c:1145 0x08054661 Tcl_Main+65 at ./../generic/tclMain.c:229 0x080544E4 main+36 at ./../unix/tclAppInit.c:101 0x400D2313 getpwent+51 at ../nss/getXXent.c:80 0x08054421 _start+33 0x0810448C (1536 bytes) {malloc:564:0} [TclpAlloc|/home/tmp/tcltk/tcl8.4a4/unix/./../generic/tclAlloc.c|672] 0x080C77A9 TclpAlloc+25 at ./../generic/tclAlloc.c:673 0x0806B03B Tcl_Alloc+27 at ./../generic/tclCkalloc.c:1002 0x08085F6D LoadTableEncoding+301 at ./../generic/tclEncoding.c:1401 0x08085CE6 LoadEncodingFile+390 at ./../generic/tclEncoding.c:1236 0x080851DE Tcl_GetEncoding+62 at ./../generic/tclEncoding.c:418 0x080854F2 Tcl_SetSystemEncoding+34 at ./../generic/tclEncoding.c:677 0x08064922 TclpSetInitialEncodings+466 at ./../unix/tclUnixInit.c:573 0x080874C0 TclFindEncodings+128 at ./../generic/tclEncoding.c:2792 0x08085AE2 Tcl_FindExecutable+114 at ./../generic/tclEncoding.c:1145 0x08054661 Tcl_Main+65 at ./../generic/tclMain.c:229 0x080544E4 main+36 at ./../unix/tclAppInit.c:101 0x400D2313 getpwent+51 at ../nss/getXXent.c:80 0x08054421 _start+33 0x08179254 (24 bytes) {malloc:2910:0} [TclpAlloc|/home/tmp/tcltk/tcl8.4a4/unix/./../generic/tclAlloc.c|672] 0x080C77A9 TclpAlloc+25 at ./../generic/tclAlloc.c:673 0x0806B03B Tcl_Alloc+27 at ./../generic/tclCkalloc.c:1002 0x080553D7 Tcl_NewObj+23 at ./../generic/tclObj.c:525 0x080A493B Tcl_FSJoinPath+123 at ./../generic/tclIOUtil.c:2804 0x08094EB8 Tcl_FSJoinToPath+88 at ./../generic/tclFileName.c:1044 0x080A55FD SetFsPathFromAny+845 at ./../generic/tclIOUtil.c:3650 0x080553A5 Tcl_ConvertToType+37 at ./../generic/tclObj.c:473 0x080A514B Tcl_FSConvertToPathType+91 at ./../generic/tclIOUtil.c:3398 0x080A58EE Tcl_FSGetTranslatedPath+30 at ./../generic/tclIOUtil.c:3873 0x080A3875 Tcl_FSEvalFile+37 at ./../generic/tclIOUtil.c:1221 0x08054853 Tcl_Main+563 at ./../generic/tclMain.c:302 0x080544E4 main+36 at ./../unix/tclAppInit.c:101 0x400D2313 getpwent+51 at ../nss/getXXent.c:80 0x08054421 _start+33 0x081792FC (10 bytes) {malloc:574:0} [TclpAlloc|/home/tmp/tcltk/tcl8.4a4/unix/./../generic/tclAlloc.c|672] 0x080C77A9 TclpAlloc+25 at ./../generic/tclAlloc.c:673 0x0806B03B Tcl_Alloc+27 at ./../generic/tclCkalloc.c:1002 0x08085598 Tcl_CreateEncoding+88 at ./../generic/tclEncoding.c:738 0x08086412 LoadTableEncoding+1490 at ./../generic/tclEncoding.c:1542 0x08085CE6 LoadEncodingFile+390 at ./../generic/tclEncoding.c:1236 0x080851DE Tcl_GetEncoding+62 at ./../generic/tclEncoding.c:418 0x080854F2 Tcl_SetSystemEncoding+34 at ./../generic/tclEncoding.c:677 0x08064922 TclpSetInitialEncodings+466 at ./../unix/tclUnixInit.c:573 0x080874C0 TclFindEncodings+128 at ./../generic/tclEncoding.c:2792 0x08085AE2 Tcl_FindExecutable+114 at ./../generic/tclEncoding.c:1145 0x08054661 Tcl_Main+65 at ./../generic/tclMain.c:229 0x080544E4 main+36 at ./../unix/tclAppInit.c:101 0x400D2313 getpwent+51 at ../nss/getXXent.c:80 0x08054421 _start+33 0x08179594 (53 bytes) {malloc:588:0} [-|-|-] 0x4005BAFB __open_catalog+1275 at open_catalog.c:234 0x4005F12C __unsetenv+28 at ../sysdeps/generic/setenv.c:270 0x40078908 ____strtod_l_internal+10680 at strtod.c:993 0x4002C6A6 __csinh+390 at ../sysdeps/libm-ieee754/s_csinh.c:94 0x4005E11E abort+398 at ../sysdeps/generic/abort.c:128 0x4002C710 __csinh+496 at ../sysdeps/libm-ieee754/s_csinh.c:100 0x40037543 __sinhl+83 at ../sysdeps/libm-ieee754/w_sinhl.c:41 0x4003B0A3 T+107 0x400D35B1 __sleep+305 at ../sysdeps/unix/sysv/linux/sleep.c:82 0x08064933 TclpSetInitialEncodings+483 at ./../unix/tclUnixInit.c:587 0x080874C0 TclFindEncodings+128 at ./../generic/tclEncoding.c:2792 0x08085AE2 Tcl_FindExecutable+114 at ./../generic/tclEncoding.c:1145 0x08054661 Tcl_Main+65 at ./../generic/tclMain.c:229 0x080544E4 main+36 at ./../unix/tclAppInit.c:101 0x400D2313 getpwent+51 at ../nss/getXXent.c:80 0x08054421 _start+33 0x081797B0 (36 bytes) {malloc:575:0} [TclpAlloc|/home/tmp/tcltk/tcl8.4a4/unix/./../generic/tclAlloc.c|672] 0x080C77A9 TclpAlloc+25 at ./../generic/tclAlloc.c:673 0x0806B03B Tcl_Alloc+27 at ./../generic/tclCkalloc.c:1002 0x080855A1 Tcl_CreateEncoding+97 at ./../generic/tclEncoding.c:740 0x08086412 LoadTableEncoding+1490 at ./../generic/tclEncoding.c:1542 0x08085CE6 LoadEncodingFile+390 at ./../generic/tclEncoding.c:1236 0x080851DE Tcl_GetEncoding+62 at ./../generic/tclEncoding.c:418 0x080854F2 Tcl_SetSystemEncoding+34 at ./../generic/tclEncoding.c:677 0x08064922 TclpSetInitialEncodings+466 at ./../unix/tclUnixInit.c:573 0x080874C0 TclFindEncodings+128 at ./../generic/tclEncoding.c:2792 0x08085AE2 Tcl_FindExecutable+114 at ./../generic/tclEncoding.c:1145 0x08054661 Tcl_Main+65 at ./../generic/tclMain.c:229 0x080544E4 main+36 at ./../unix/tclAppInit.c:101 0x400D2313 getpwent+51 at ../nss/getXXent.c:80 0x08054421 _start+33 0x0817F8E0 (1536 bytes) {malloc:570:0} [TclpAlloc|/home/tmp/tcltk/tcl8.4a4/unix/./../generic/tclAlloc.c|672] 0x080C77A9 TclpAlloc+25 at ./../generic/tclAlloc.c:673 0x0806B03B Tcl_Alloc+27 at ./../generic/tclCkalloc.c:1002 0x080861C0 LoadTableEncoding+896 at ./../generic/tclEncoding.c:1466 0x08085CE6 LoadEncodingFile+390 at ./../generic/tclEncoding.c:1236 0x080851DE Tcl_GetEncoding+62 at ./../generic/tclEncoding.c:418 0x080854F2 Tcl_SetSystemEncoding+34 at ./../generic/tclEncoding.c:677 0x08064922 TclpSetInitialEncodings+466 at ./../unix/tclUnixInit.c:573 0x080874C0 TclFindEncodings+128 at ./../generic/tclEncoding.c:2792 0x08085AE2 Tcl_FindExecutable+114 at ./../generic/tclEncoding.c:1145 0x08054661 Tcl_Main+65 at ./../generic/tclMain.c:229 0x080544E4 main+36 at ./../unix/tclAppInit.c:101 0x400D2313 getpwent+51 at ../nss/getXXent.c:80 0x08054421 _start+33 0x081CC160 (24 bytes) {malloc:1265:0} [TclpAlloc|/home/tmp/tcltk/tcl8.4a4/unix/./../generic/tclAlloc.c|672] 0x080C77A9 TclpAlloc+25 at ./../generic/tclAlloc.c:673 0x0806B03B Tcl_Alloc+27 at ./../generic/tclCkalloc.c:1002 0x0805A869 Tcl_NewStringObj+73 at ./../generic/tclStringObj.c:207 0x080545CB TclSetStartupScriptFileName+27 at ./../generic/tclMain.c:156 0x0805472C Tcl_Main+268 at ./../generic/tclMain.c:263 0x080544E4 main+36 at ./../unix/tclAppInit.c:101 0x400D2313 getpwent+51 at ../nss/getXXent.c:80 0x08054421 _start+33 0x081CC178 (11 bytes) {malloc:1266:0} [TclpAlloc|/home/tmp/tcltk/tcl8.4a4/unix/./../generic/tclAlloc.c|672] 0x080C77A9 TclpAlloc+25 at ./../generic/tclAlloc.c:673 0x0806B03B Tcl_Alloc+27 at ./../generic/tclCkalloc.c:1002 0x0805A8B9 Tcl_NewStringObj+153 at ./../generic/tclStringObj.c:208 0x080545CB TclSetStartupScriptFileName+27 at ./../generic/tclMain.c:156 0x0805472C Tcl_Main+268 at ./../generic/tclMain.c:263 0x080544E4 main+36 at ./../unix/tclAppInit.c:101 0x400D2313 getpwent+51 at ../nss/getXXent.c:80 0x08054421 _start+33 0x081CC1F8 (54 bytes) {malloc:3132:0} [-|-|-] 0x4005BAFB __open_catalog+1275 at open_catalog.c:234 0x4005F12C __unsetenv+28 at ../sysdeps/generic/setenv.c:270 0x40078908 ____strtod_l_internal+10680 at strtod.c:993 0x4002C6A6 __csinh+390 at ../sysdeps/libm-ieee754/s_csinh.c:94 0x4005E11E abort+398 at ../sysdeps/generic/abort.c:128 0x4002C710 __csinh+496 at ../sysdeps/libm-ieee754/s_csinh.c:100 0x40037543 __sinhl+83 at ../sysdeps/libm-ieee754/w_sinhl.c:41 0x4003B0A3 T+107 0x080C77C9 TclpFree+25 at ./../generic/tclAlloc.c:697 0x0806B239 Tcl_Free+25 at ./../generic/tclCkalloc.c:1161 0x0805B9AC FreeStringInternalRep+28 at ./../generic/tclStringObj.c:1812 0x080554A7 TclFreeObj+39 at ./../generic/tclObj.c:706 0x08063833 TclDeleteVars+339 at ./../generic/tclVar.c:5019 0x080A94F5 TclTeardownNamespace+213 at ./../generic/tclNamesp.c:743 0x080656A6 DeleteInterpProc+102 at ./../generic/tclBasic.c:995 0x08058079 Tcl_Release+185 at ./../generic/tclPreserve.c:242 0x08054D81 Tcl_Main+1889 at ./../generic/tclMain.c:530 0x080544E4 main+36 at ./../unix/tclAppInit.c:101 0x400D2313 getpwent+51 at ../nss/getXXent.c:80 0x08054421 _start+33 0x081CC4D8 (45 bytes) {malloc:3063:0} [TclpAlloc|/home/tmp/tcltk/tcl8.4a4/unix/./../generic/tclAlloc.c|672] 0x080C77A9 TclpAlloc+25 at ./../generic/tclAlloc.c:673 0x0806B03B Tcl_Alloc+27 at ./../generic/tclCkalloc.c:1002 0x080A5BAA NativeCreateNativeRep+90 at ./../generic/tclIOUtil.c:4185 0x080A5B06 Tcl_FSGetInternalRep+118 at ./../generic/tclIOUtil.c:4105 0x080A5B40 Tcl_FSGetNativePath+32 at ./../generic/tclIOUtil.c:4147 0x080BA8B9 TclpObjStat+25 at ./../unix/tclUnixFile.c:692 0x080A3C51 Tcl_FSStat+257 at ./../generic/tclIOUtil.c:1452 0x080A38B2 Tcl_FSEvalFile+98 at ./../generic/tclIOUtil.c:1228 0x08054853 Tcl_Main+563 at ./../generic/tclMain.c:302 0x080544E4 main+36 at ./../unix/tclAppInit.c:101 0x400D2313 getpwent+51 at ../nss/getXXent.c:80 0x08054421 _start+33 0x081CC508 (24 bytes) {malloc:2971:0} [TclpAlloc|/home/tmp/tcltk/tcl8.4a4/unix/./../generic/tclAlloc.c|672] 0x080C77A9 TclpAlloc+25 at ./../generic/tclAlloc.c:673 0x0806B03B Tcl_Alloc+27 at ./../generic/tclCkalloc.c:1002 0x0805A869 Tcl_NewStringObj+73 at ./../generic/tclStringObj.c:207 0x080A49EA Tcl_FSJoinPath+298 at ./../generic/tclIOUtil.c:2826 0x080A3375 FSNormalizeAbsolutePath+277 at ./../generic/tclIOUtil.c:889 0x080A40D3 Tcl_FSGetCwd+99 at ./../generic/tclIOUtil.c:1862 0x080A59C8 Tcl_FSGetNormalizedPath+104 at ./../generic/tclIOUtil.c:3969 0x080A5E69 Tcl_FSGetFileSystemForPath+57 at ./../generic/tclIOUtil.c:4497 0x080A3C39 Tcl_FSStat+233 at ./../generic/tclIOUtil.c:1449 0x080A38B2 Tcl_FSEvalFile+98 at ./../generic/tclIOUtil.c:1228 0x08054853 Tcl_Main+563 at ./../generic/tclMain.c:302 0x080544E4 main+36 at ./../unix/tclAppInit.c:101 0x400D2313 getpwent+51 at ../nss/getXXent.c:80 0x08054421 _start+33 0x081CC520 (34 bytes) {realloc:2972:5} [TclpRealloc|/home/tmp/tcltk/tcl8.4a4/unix/./../generic/tclAlloc.c|720] 0x080C77ED TclpRealloc+29 at ./../generic/tclAlloc.c:721 0x0806B12F Tcl_Realloc+31 at ./../generic/tclCkalloc.c:1085 0x0805AD69 Tcl_SetObjLength+105 at ./../generic/tclStringObj.c:765 0x08094F9E TclpNativeJoinPath+190 at ./../generic/tclFileName.c:1112 0x080A4A49 Tcl_FSJoinPath+393 at ./../generic/tclIOUtil.c:2854 0x080A3375 FSNormalizeAbsolutePath+277 at ./../generic/tclIOUtil.c:889 0x080A40D3 Tcl_FSGetCwd+99 at ./../generic/tclIOUtil.c:1862 0x080A59C8 Tcl_FSGetNormalizedPath+104 at ./../generic/tclIOUtil.c:3969 0x080A5E69 Tcl_FSGetFileSystemForPath+57 at ./../generic/tclIOUtil.c:4497 0x080A3C39 Tcl_FSStat+233 at ./../generic/tclIOUtil.c:1449 0x080A38B2 Tcl_FSEvalFile+98 at ./../generic/tclIOUtil.c:1228 0x08054853 Tcl_Main+563 at ./../generic/tclMain.c:302 0x080544E4 main+36 at ./../unix/tclAppInit.c:101 0x400D2313 getpwent+51 at ../nss/getXXent.c:80 0x08054421 _start+33 0x081CC544 (24 bytes) {malloc:2980:0} [TclpAlloc|/home/tmp/tcltk/tcl8.4a4/unix/./../generic/tclAlloc.c|672] 0x080C77A9 TclpAlloc+25 at ./../generic/tclAlloc.c:673 0x0806B03B Tcl_Alloc+27 at ./../generic/tclCkalloc.c:1002 0x080A5265 SetFsPathFromAbsoluteNormalized+149 at ./../generic/tclIOUtil.c:3482 0x080A338A FSNormalizeAbsolutePath+298 at ./../generic/tclIOUtil.c:909 0x080A40D3 Tcl_FSGetCwd+99 at ./../generic/tclIOUtil.c:1862 0x080A59C8 Tcl_FSGetNormalizedPath+104 at ./../generic/tclIOUtil.c:3969 0x080A5E69 Tcl_FSGetFileSystemForPath+57 at ./../generic/tclIOUtil.c:4497 0x080A3C39 Tcl_FSStat+233 at ./../generic/tclIOUtil.c:1449 0x080A38B2 Tcl_FSEvalFile+98 at ./../generic/tclIOUtil.c:1228 0x08054853 Tcl_Main+563 at ./../generic/tclMain.c:302 0x080544E4 main+36 at ./../unix/tclAppInit.c:101 0x400D2313 getpwent+51 at ../nss/getXXent.c:80 0x08054421 _start+33 0x081CC614 (24 bytes) {malloc:3051:0} [TclpAlloc|/home/tmp/tcltk/tcl8.4a4/unix/./../generic/tclAlloc.c|672] 0x080C77A9 TclpAlloc+25 at ./../generic/tclAlloc.c:673 0x0806B03B Tcl_Alloc+27 at ./../generic/tclCkalloc.c:1002 0x0805A869 Tcl_NewStringObj+73 at ./../generic/tclStringObj.c:207 0x080A49EA Tcl_FSJoinPath+298 at ./../generic/tclIOUtil.c:2826 0x080A3375 FSNormalizeAbsolutePath+277 at ./../generic/tclIOUtil.c:889 0x080A5A16 Tcl_FSGetNormalizedPath+182 at ./../generic/tclIOUtil.c:3982 0x080A5E69 Tcl_FSGetFileSystemForPath+57 at ./../generic/tclIOUtil.c:4497 0x080A3C39 Tcl_FSStat+233 at ./../generic/tclIOUtil.c:1449 0x080A38B2 Tcl_FSEvalFile+98 at ./../generic/tclIOUtil.c:1228 0x08054853 Tcl_Main+563 at ./../generic/tclMain.c:302 0x080544E4 main+36 at ./../unix/tclAppInit.c:101 0x400D2313 getpwent+51 at ../nss/getXXent.c:80 0x08054421 _start+33 0x081CC62C (69 bytes) {realloc:3052:6} [TclpRealloc|/home/tmp/tcltk/tcl8.4a4/unix/./../generic/tclAlloc.c|720] 0x080C77ED TclpRealloc+29 at ./../generic/tclAlloc.c:721 0x0806B1DD Tcl_AttemptRealloc+29 at ./../generic/tclCkalloc.c:1130 0x0805AE49 Tcl_AttemptSetObjLength+105 at ./../generic/tclStringObj.c:840 0x0805B428 AppendUtfToUtfRep+104 at ./../generic/tclStringObj.c:1336 0x0805B02B Tcl_AppendToObj+139 at ./../generic/tclStringObj.c:983 0x08094F72 TclpNativeJoinPath+146 at ./../generic/tclFileName.c:1101 0x080A4A49 Tcl_FSJoinPath+393 at ./../generic/tclIOUtil.c:2854 0x080A3375 FSNormalizeAbsolutePath+277 at ./../generic/tclIOUtil.c:889 0x080A5A16 Tcl_FSGetNormalizedPath+182 at ./../generic/tclIOUtil.c:3982 0x080A5E69 Tcl_FSGetFileSystemForPath+57 at ./../generic/tclIOUtil.c:4497 0x080A3C39 Tcl_FSStat+233 at ./../generic/tclIOUtil.c:1449 0x080A38B2 Tcl_FSEvalFile+98 at ./../generic/tclIOUtil.c:1228 0x08054853 Tcl_Main+563 at ./../generic/tclMain.c:302 0x080544E4 main+36 at ./../unix/tclAppInit.c:101 0x400D2313 getpwent+51 at ../nss/getXXent.c:80 0x08054421 _start+33 0x081CC674 (24 bytes) {malloc:3062:0} [TclpAlloc|/home/tmp/tcltk/tcl8.4a4/unix/./../generic/tclAlloc.c|672] 0x080C77A9 TclpAlloc+25 at ./../generic/tclAlloc.c:673 0x0806B03B Tcl_Alloc+27 at ./../generic/tclCkalloc.c:1002 0x080A5265 SetFsPathFromAbsoluteNormalized+149 at ./../generic/tclIOUtil.c:3482 0x080A338A FSNormalizeAbsolutePath+298 at ./../generic/tclIOUtil.c:909 0x080A5A16 Tcl_FSGetNormalizedPath+182 at ./../generic/tclIOUtil.c:3982 0x080A5E69 Tcl_FSGetFileSystemForPath+57 at ./../generic/tclIOUtil.c:4497 0x080A3C39 Tcl_FSStat+233 at ./../generic/tclIOUtil.c:1449 0x080A38B2 Tcl_FSEvalFile+98 at ./../generic/tclIOUtil.c:1228 0x08054853 Tcl_Main+563 at ./../generic/tclMain.c:302 0x080544E4 main+36 at ./../unix/tclAppInit.c:101 0x400D2313 getpwent+51 at ../nss/getXXent.c:80 0x08054421 _start+33 0x081CDD64 (24 bytes) {malloc:2913:0} [TclpAlloc|/home/tmp/tcltk/tcl8.4a4/unix/./../generic/tclAlloc.c|672] 0x080C77A9 TclpAlloc+25 at ./../generic/tclAlloc.c:673 0x0806B03B Tcl_Alloc+27 at ./../generic/tclCkalloc.c:1002 0x080A5609 SetFsPathFromAny+857 at ./../generic/tclIOUtil.c:3660 0x080553A5 Tcl_ConvertToType+37 at ./../generic/tclObj.c:473 0x080A514B Tcl_FSConvertToPathType+91 at ./../generic/tclIOUtil.c:3398 0x080A58EE Tcl_FSGetTranslatedPath+30 at ./../generic/tclIOUtil.c:3873 0x080A3875 Tcl_FSEvalFile+37 at ./../generic/tclIOUtil.c:1221 0x08054853 Tcl_Main+563 at ./../generic/tclMain.c:302 0x080544E4 main+36 at ./../unix/tclAppInit.c:101 0x400D2313 getpwent+51 at ../nss/getXXent.c:80 0x08054421 _start+33 0x081CDF9C (16 bytes) {malloc:2911:0} [TclpAlloc|/home/tmp/tcltk/tcl8.4a4/unix/./../generic/tclAlloc.c|672] 0x080C77A9 TclpAlloc+25 at ./../generic/tclAlloc.c:673 0x0806B03B Tcl_Alloc+27 at ./../generic/tclCkalloc.c:1002 0x0805B859 SetStringFromAny+89 at ./../generic/tclStringObj.c:1706 0x0805AD34 Tcl_SetObjLength+52 at ./../generic/tclStringObj.c:754 0x08094F9E TclpNativeJoinPath+190 at ./../generic/tclFileName.c:1112 0x080A4A49 Tcl_FSJoinPath+393 at ./../generic/tclIOUtil.c:2854 0x08094EB8 Tcl_FSJoinToPath+88 at ./../generic/tclFileName.c:1044 0x080A55FD SetFsPathFromAny+845 at ./../generic/tclIOUtil.c:3650 0x080553A5 Tcl_ConvertToType+37 at ./../generic/tclObj.c:473 0x080A514B Tcl_FSConvertToPathType+91 at ./../generic/tclIOUtil.c:3398 0x080A58EE Tcl_FSGetTranslatedPath+30 at ./../generic/tclIOUtil.c:3873 0x080A3875 Tcl_FSEvalFile+37 at ./../generic/tclIOUtil.c:1221 0x08054853 Tcl_Main+563 at ./../generic/tclMain.c:302 0x080544E4 main+36 at ./../unix/tclAppInit.c:101 0x400D2313 getpwent+51 at ../nss/getXXent.c:80 0x08054421 _start+33 0x081CE0F8 (11 bytes) {malloc:2912:0} [TclpAlloc|/home/tmp/tcltk/tcl8.4a4/unix/./../generic/tclAlloc.c|672] 0x080C77A9 TclpAlloc+25 at ./../generic/tclAlloc.c:673 0x0806B03B Tcl_Alloc+27 at ./../generic/tclCkalloc.c:1002 0x0805AD7A Tcl_SetObjLength+122 at ./../generic/tclStringObj.c:768 0x08094F9E TclpNativeJoinPath+190 at ./../generic/tclFileName.c:1112 0x080A4A49 Tcl_FSJoinPath+393 at ./../generic/tclIOUtil.c:2854 0x08094EB8 Tcl_FSJoinToPath+88 at ./../generic/tclFileName.c:1044 0x080A55FD SetFsPathFromAny+845 at ./../generic/tclIOUtil.c:3650 0x080553A5 Tcl_ConvertToType+37 at ./../generic/tclObj.c:473 0x080A514B Tcl_FSConvertToPathType+91 at ./../generic/tclIOUtil.c:3398 0x080A58EE Tcl_FSGetTranslatedPath+30 at ./../generic/tclIOUtil.c:3873 0x080A3875 Tcl_FSEvalFile+37 at ./../generic/tclIOUtil.c:1221 0x08054853 Tcl_Main+563 at ./../generic/tclMain.c:302 0x080544E4 main+36 at ./../unix/tclAppInit.c:101 0x400D2313 getpwent+51 at ../nss/getXXent.c:80 0x08054421 _start+33 ---------------------------------------------------------------------- Comment By: Vince Darley (vincentdarley) Date: 2002-05-21 12:51 Message: Logged In: YES user_id=32170 Note: the attached patch has now been committed. This means the current cvs head should only show the 'encoding' problems which Jeff is planning to deal with (I assume!) ---------------------------------------------------------------------- Comment By: Vince Darley (vincentdarley) Date: 2002-05-10 17:47 Message: Logged In: YES user_id=32170 Attaching a better patch, which also releases any memory allocated for additional filesystems which may be registered. ---------------------------------------------------------------------- Comment By: Vince Darley (vincentdarley) Date: 2002-05-10 17:29 Message: Logged In: YES user_id=32170 Ok, I understand it now. I've attached a patch which should fix the problem. The new FS code allocates a Tcl_Obj to contain the 'cwd', and it wasn't being freed. Assigning to Jeff to fix the remaining 'Encoding' problems. ---------------------------------------------------------------------- Comment By: Nobody/Anonymous (nobody) Date: 2002-05-09 15:47 Message: Logged In: NO I really don't understand the 'fs' problems here. Could you take a look at what the contents of tclStartupScriptPath are (and particularly the contents of '(FsPath*)(tclStartupScriptPath- >internalRep.otherValuePtr)'), before and after the final call to 'TclSetStartupScriptPath(NULL);' before exit? ---------------------------------------------------------------------- Comment By: Vince Darley (vincentdarley) Date: 2002-05-09 11:54 Message: Logged In: YES user_id=32170 Re-opening, given new traces. I have to say, though, that I don't understand why a given code-path should leak memory if and only if it is called from Tcl_Main. The same bits of code are called thousands of times during standard Tcl execution without leaking anything. This means the problem may well be more of an 'init' issue and not therefore v. easy for me to solve. I will have a look though. ---------------------------------------------------------------------- Comment By: Rolf Ade (pointsman) Date: 2002-05-09 00:14 Message: Logged In: YES user_id=13222 I rechecked this, with the current HEAD (this is May 08 22:00: GMT 2002). Configuration the same: ./configure --enable-symbols --disable-shared and -DPURIFY added to the C Flags. I'll append the results. Jeff noted, that he knows about the encoding ones. Three others are, "that looks like Vince's dept" (Jeff). rolf top 1 unfreed memory entry in leak table: bytes count location -------- ------ -------- 3464 8 /home/rolf/tcltk/cvs/tcl/unix/./../generic/tclAlloc.c line 679 3464 8 total 0x0814D3D4 (10 bytes) {malloc:589:0} [TclpAlloc|/home/rolf/tcltk/cvs/tcl/unix/./../generic/tclAlloc.c|679] 0x0810F509 TclpAlloc+25 at ./../generic/tclAlloc.c:679 0x080746CC Tcl_Alloc+28 at ./../generic/tclCkalloc.c:1002 0x0809F0FC Tcl_CreateEncoding+108 at ./../generic/tclEncoding.c:738 0x080A0483 LoadTableEncoding+2179 at ./../generic/tclEncoding.c:1542 0x0809FA03 LoadEncodingFile+483 at ./../generic/tclEncoding.c:1226 0x0809EB8D Tcl_GetEncoding+141 at ./../generic/tclEncoding.c:418 0x0809F03D Tcl_SetSystemEncoding+77 at ./../generic/tclEncoding.c:677 0x0806AFDF TclpSetInitialEncodings+575 at ./../unix/tclUnixInit.c:572 0x080A1EB9 TclFindEncodings+153 at ./../generic/tclEncoding.c:2806 0x0809F790 Tcl_FindExecutable+160 at ./../generic/tclEncoding.c:1138 0x08054757 Tcl_Main+55 at ./../generic/tclMain.c:227 0x08054556 main+38 at ./../unix/tclAppInit.c:99 0x400D2313 getpwent+51 at ../nss/getXXent.c:80 0x08054491 _start+33 0x0814D428 (268 bytes) {malloc:576:0} [TclpAlloc|/home/rolf/tcltk/cvs/tcl/unix/./../generic/tclAlloc.c|679] 0x0810F509 TclpAlloc+25 at ./../generic/tclAlloc.c:679 0x080746CC Tcl_Alloc+28 at ./../generic/tclCkalloc.c:1002 0x0809FD06 LoadTableEncoding+262 at ./../generic/tclEncoding.c:1389 0x0809FA03 LoadEncodingFile+483 at ./../generic/tclEncoding.c:1226 0x0809EB8D Tcl_GetEncoding+141 at ./../generic/tclEncoding.c:418 0x0809F03D Tcl_SetSystemEncoding+77 at ./../generic/tclEncoding.c:677 0x0806AFDF TclpSetInitialEncodings+575 at ./../unix/tclUnixInit.c:572 0x080A1EB9 TclFindEncodings+153 at ./../generic/tclEncoding.c:2806 0x0809F790 Tcl_FindExecutable+160 at ./../generic/tclEncoding.c:1138 0x08054757 Tcl_Main+55 at ./../generic/tclMain.c:227 0x08054556 main+38 at ./../unix/tclAppInit.c:99 0x400D2313 getpwent+51 at ../nss/getXXent.c:80 0x08054491 _start+33 0x0814D534 (1536 bytes) {malloc:579:0} [TclpAlloc|/home/rolf/tcltk/cvs/tcl/unix/./../generic/tclAlloc.c|679] 0x0810F509 TclpAlloc+25 at ./../generic/tclAlloc.c:679 0x080746CC Tcl_Alloc+28 at ./../generic/tclCkalloc.c:1002 0x0809FD58 LoadTableEncoding+344 at ./../generic/tclEncoding.c:1401 0x0809FA03 LoadEncodingFile+483 at ./../generic/tclEncoding.c:1226 0x0809EB8D Tcl_GetEncoding+141 at ./../generic/tclEncoding.c:418 0x0809F03D Tcl_SetSystemEncoding+77 at ./../generic/tclEncoding.c:677 0x0806AFDF TclpSetInitialEncodings+575 at ./../unix/tclUnixInit.c:572 0x080A1EB9 TclFindEncodings+153 at ./../generic/tclEncoding.c:2806 0x0809F790 Tcl_FindExecutable+160 at ./../generic/tclEncoding.c:1138 0x08054757 Tcl_Main+55 at ./../generic/tclMain.c:227 0x08054556 main+38 at ./../unix/tclAppInit.c:99 0x400D2313 getpwent+51 at ../nss/getXXent.c:80 0x08054491 _start+33 0x081C2578 (36 bytes) {malloc:590:0} [TclpAlloc|/home/rolf/tcltk/cvs/tcl/unix/./../generic/tclAlloc.c|679] 0x0810F509 TclpAlloc+25 at ./../generic/tclAlloc.c:679 0x080746CC Tcl_Alloc+28 at ./../generic/tclCkalloc.c:1002 0x0809F10B Tcl_CreateEncoding+123 at ./../generic/tclEncoding.c:740 0x080A0483 LoadTableEncoding+2179 at ./../generic/tclEncoding.c:1542 0x0809FA03 LoadEncodingFile+483 at ./../generic/tclEncoding.c:1226 0x0809EB8D Tcl_GetEncoding+141 at ./../generic/tclEncoding.c:418 0x0809F03D Tcl_SetSystemEncoding+77 at ./../generic/tclEncoding.c:677 0x0806AFDF TclpSetInitialEncodings+575 at ./../unix/tclUnixInit.c:572 0x080A1EB9 TclFindEncodings+153 at ./../generic/tclEncoding.c:2806 0x0809F790 Tcl_FindExecutable+160 at ./../generic/tclEncoding.c:1138 0x08054757 Tcl_Main+55 at ./../generic/tclMain.c:227 0x08054556 main+38 at ./../unix/tclAppInit.c:99 0x400D2313 getpwent+51 at ../nss/getXXent.c:80 0x08054491 _start+33 0x081C8908 (1536 bytes) {malloc:585:0} [TclpAlloc|/home/rolf/tcltk/cvs/tcl/unix/./../generic/tclAlloc.c|679] 0x0810F509 TclpAlloc+25 at ./../generic/tclAlloc.c:679 0x080746CC Tcl_Alloc+28 at ./../generic/tclCkalloc.c:1002 0x080A00D5 LoadTableEncoding+1237 at ./../generic/tclEncoding.c:1466 0x0809FA03 LoadEncodingFile+483 at ./../generic/tclEncoding.c:1226 0x0809EB8D Tcl_GetEncoding+141 at ./../generic/tclEncoding.c:418 0x0809F03D Tcl_SetSystemEncoding+77 at ./../generic/tclEncoding.c:677 0x0806AFDF TclpSetInitialEncodings+575 at ./../unix/tclUnixInit.c:572 0x080A1EB9 TclFindEncodings+153 at ./../generic/tclEncoding.c:2806 0x0809F790 Tcl_FindExecutable+160 at ./../generic/tclEncoding.c:1138 0x08054757 Tcl_Main+55 at ./../generic/tclMain.c:227 0x08054556 main+38 at ./../unix/tclAppInit.c:99 0x400D2313 getpwent+51 at ../nss/getXXent.c:80 0x08054491 _start+33 0x08215774 (24 bytes) {malloc:3067:0} [TclpAlloc|/home/rolf/tcltk/cvs/tcl/unix/./../generic/tclAlloc.c|679] 0x0810F509 TclpAlloc+25 at ./../generic/tclAlloc.c:679 0x080746CC Tcl_Alloc+28 at ./../generic/tclCkalloc.c:1002 0x0805CE5C Tcl_NewStringObj+60 at ./../generic/tclStringObj.c:207 0x080DBBDD Tcl_FSJoinPath+349 at ./../generic/tclIOUtil.c:2900 0x080D9AB3 FSNormalizeAbsolutePath+323 at ./../generic/tclIOUtil.c:898 0x080DADD8 Tcl_FSGetCwd+168 at ./../generic/tclIOUtil.c:1898 0x080DD2B1 Tcl_FSGetNormalizedPath+145 at ./../generic/tclIOUtil.c:4055 0x080DD95B Tcl_FSGetFileSystemForPath+75 at ./../generic/tclIOUtil.c:4557 0x080DA639 Tcl_FSStat+345 at ./../generic/tclIOUtil.c:1457 0x080DA14E Tcl_FSEvalFile+94 at ./../generic/tclIOUtil.c:1237 0x080549B0 Tcl_Main+656 at ./../generic/tclMain.c:302 0x08054556 main+38 at ./../unix/tclAppInit.c:99 0x400D2313 getpwent+51 at ../nss/getXXent.c:80 0x08054491 _start+33 0x0821578C (24 bytes) {malloc:3080:0} [TclpAlloc|/home/rolf/tcltk/cvs/tcl/unix/./../generic/tclAlloc.c|679] 0x0810F509 TclpAlloc+25 at ./../generic/tclAlloc.c:679 0x080746CC Tcl_Alloc+28 at ./../generic/tclCkalloc.c:1002 0x080DC897 SetFsPathFromAbsoluteNormalized+199 at ./../generic/tclIOUtil.c:3559 0x080D9ADD FSNormalizeAbsolutePath+365 at ./../generic/tclIOUtil.c:917 0x080DADD8 Tcl_FSGetCwd+168 at ./../generic/tclIOUtil.c:1898 0x080DD2B1 Tcl_FSGetNormalizedPath+145 at ./../generic/tclIOUtil.c:4055 0x080DD95B Tcl_FSGetFileSystemForPath+75 at ./../generic/tclIOUtil.c:4557 0x080DA639 Tcl_FSStat+345 at ./../generic/tclIOUtil.c:1457 0x080DA14E Tcl_FSEvalFile+94 at ./../generic/tclIOUtil.c:1237 0x080549B0 Tcl_Main+656 at ./../generic/tclMain.c:302 0x08054556 main+38 at ./../unix/tclAppInit.c:99 0x400D2313 getpwent+51 at ../nss/getXXent.c:80 0x08054491 _start+33 0x08215B38 (30 bytes) {malloc:3077:0} [TclpAlloc|/home/rolf/tcltk/cvs/tcl/unix/./../generic/tclAlloc.c|679] 0x0810F509 TclpAlloc+25 at ./../generic/tclAlloc.c:679 0x080746CC Tcl_Alloc+28 at ./../generic/tclCkalloc.c:1002 0x0805D469 Tcl_SetStringObj+185 at ./../generic/tclStringObj.c:707 0x080F9300 TclpObjNormalizePath+448 at ./../unix/tclUnixFCmd.c:1732 0x080D9BA0 TclNormalizeToUniquePath+96 at ./../generic/tclIOUtil.c:989 0x080D9ACD FSNormalizeAbsolutePath+349 at ./../generic/tclIOUtil.c:911 0x080DADD8 Tcl_FSGetCwd+168 at ./../generic/tclIOUtil.c:1898 0x080DD2B1 Tcl_FSGetNormalizedPath+145 at ./../generic/tclIOUtil.c:4055 0x080DD95B Tcl_FSGetFileSystemForPath+75 at ./../generic/tclIOUtil.c:4557 0x080DA639 Tcl_FSStat+345 at ./../generic/tclIOUtil.c:1457 0x080DA14E Tcl_FSEvalFile+94 at ./../generic/tclIOUtil.c:1237 0x080549B0 Tcl_Main+656 at ./../generic/tclMain.c:302 0x08054556 main+38 at ./../unix/tclAppInit.c:99 0x400D2313 getpwent+51 at ../nss/getXXent.c:80 0x08054491 _start+33 ---------------------------------------------------------------------- Comment By: Vince Darley (vincentdarley) Date: 2002-05-07 17:14 Message: Logged In: YES user_id=32170 My impression is that all of the above have been fixed. ---------------------------------------------------------------------- Comment By: Vince Darley (vincentdarley) Date: 2002-04-22 16:12 Message: Logged In: YES user_id=32170 It's not clear to me what the 'remaining problems' are. All of the vfs-related ones seem to me to be leaks at tclMain.c:line 302, which is 'TclGetStartupScriptPath()', I think. Can 'rolf' or someone else perhaps provide some new traces. Else I don't really know what to look at, at all. ---------------------------------------------------------------------- Comment By: Don Porter (dgp) Date: 2002-04-20 01:29 Message: Logged In: YES user_id=80530 committed fix for the TclSetStartupScriptPath "leak". Assigning to Vince; many of the remaining problems in this report appear to be in the VFS code. ---------------------------------------------------------------------- You can respond by visiting: http://sourceforge.net/tracker/?func=detail&atid=110894&aid=543549&group_id=10894 |