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[Tcl-bugs] [ tcl-Bugs-465494 ] I/O segfaults in test suite
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From: <no...@so...> - 2001-09-28 00:30:53
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Bugs item #465494, was opened at 2001-09-26 20:43 You can respond by visiting: http://sourceforge.net/tracker/?func=detail&atid=110894&aid=465494&group_id=10894 >Category: 24. Channel System Group: 8.4a4 Status: Open Resolution: None Priority: 7 Submitted By: Don Porter (dgp) Assigned to: Andreas Kupries (andreas_kupries) Summary: I/O segfaults in test suite Initial Comment: The commits to HEAD on 2001-09-26 cause segfaults in tests io-36.5, http-3.6 (http.test), http-3.5 (httpold.test). ---------------------------------------------------------------------- >Comment By: Don Porter (dgp) Date: 2001-09-27 17:30 Message: Logged In: YES user_id=80530 The attached patch may be the fix. testing it now... ---------------------------------------------------------------------- Comment By: Don Porter (dgp) Date: 2001-09-27 17:06 Message: Logged In: YES user_id=80530 ElectricFence says the bad code is line 6741 of generic/tclIO.c: statePtr->flags &= ~CHANNEL_TIMER_FEV ---------------------------------------------------------------------- Comment By: Don Porter (dgp) Date: 2001-09-27 15:13 Message: Logged In: YES user_id=80530 I rolled back to revision 1.35 of generic/tclIO.c in my working directory and the segfaults go away, so that is the trigger, though probably not the cause. ---------------------------------------------------------------------- Comment By: Don Porter (dgp) Date: 2001-09-27 00:37 Message: Logged In: YES user_id=80530 Several architectures. Here's the first. It segfaults on test io-36.5: $ uname -a Linux rhea 2.0.35 #1 Tue Jul 14 23:56:39 EDT 1998 i686 unknown $ cd tcl/unix $ ./configure --disable-shared --enable-symbols ... $ make tcltest ... $ vi ../tests/io.test ... Comment out test io-29.27 ... $ gdb ./tcltest ... (gdb) run Starting program: /home/dgporter/cvs/tcl/unix/./tcltest % source ../tests/io.test Program received signal SIGSEGV, Segmentation fault. 0x4006a090 in chunk_alloc (ar_ptr=0x400bebd0, nb=128) at malloc.c:2621 malloc.c:2621: No such file or directory. (gdb) bt #0 0x4006a090 in chunk_alloc (ar_ptr=0x400bebd0, nb=128) at malloc.c:2621 #1 0x40069fa5 in __libc_malloc (bytes=124) at malloc.c:2566 #2 0x80efb3d in TclpAlloc (nbytes=124) at ./../generic/tclAlloc.c:672 #3 0x806748c in Tcl_Alloc (size=124) at ./../generic/tclCkalloc.c:983 #4 0x80a3f25 in Tcl_CreateChannel (typePtr=0x8103d34, chanName=0xbfffceb0 "file6", instanceData=0x811e530, mask=4) at ./../generic/tclIO.c:1112 #5 0x80d8021 in TclpOpenFileChannel (interp=0x8108b80, pathPtr=0x8158ea8, modeString=0x8162a00 "w", permissions=438) at ./../unix/tclUnixChan.c:1377 #6 0x80b0043 in Tcl_FSOpenFileChannel (interp=0x8108b80, pathPtr=0x8158ea8, modeString=0x8162a00 "w", permissions=438) at ./../generic/tclIOUtil.c:1553 #7 0x80acf40 in Tcl_OpenObjCmd (notUsed=0x0, interp=0x8108b80, objc=3, objv=0xbfffd010) at ./../generic/tclIOCmd.c:975 #8 0x80bd775 in EvalObjv (interp=0x8108b80, objc=3, objv=0xbfffd010, command=0x8160029 "open test1 w]\n puts $f abcdefghijklmnop\n close $f\n set f [open test1 r]\n fconfigure $f -blocking off\n set l \\\n lappend l [fblocked $f]\n lappend l [read $f 3]\n lappend l [fbloc"..., length=12, flags=0) at ./../generic/tclParse.c:932 #9 0x80be10c in Tcl_EvalEx (interp=0x8108b80, script=0x8160029 "open test1 w]\n puts $f abcdefghijklmnop\n close $f\n set f [open test1 r]\n fconfigure $f -blocking off\n set l \\\n lappend l [fblocked $f]\n lappend l [read $f 3]\n lappend l [fbloc"..., numBytes=12, flags=0) at ./../generic/tclParse.c:1450 #10 0x80bdbed in Tcl_EvalTokensStandard (interp=0x8108b80, tokenPtr=0xbfffd368, count=1) at ./../generic/tclParse.c:1192 #11 0x80be065 in Tcl_EvalEx (interp=0x8108b80, script=0x8160008 "\n removeFile test1\n set f [open test1 w]\n puts $f abcdefghijklmnop\n close $f\n set f [open test1 r]\n fconfigure $f -blocking off\n set l \\\n lappend l [fblocked $f]\n lappend l"..., numBytes=350, flags=262144) at ./../generic/tclParse.c:1436 #12 0x80633ec in Tcl_EvalObjEx (interp=0x8108b80, objPtr=0x815ad08, flags=262144) at ./../generic/tclBasic.c:2798 #13 0x80c6854 in Tcl_UplevelObjCmd (dummy=0x0, interp=0x8108b80, objc=1, objv=0x810a384) at ./../generic/tclProc.c:667 #14 0x808b2dd in TclExecuteByteCode (interp=0x8108b80, codePtr=0x8163bf8) at ./../generic/tclExecute.c:869 #15 0x80636c2 in Tcl_EvalObjEx (interp=0x8108b80, objPtr=0x812b5a0, flags=0) at ./../generic/tclBasic.c:2951 #16 0x80c6f4d in TclObjInterpProc (clientData=0x813be40, interp=0x8108b80, objc=6, objv=0xbfffdb80) at ./../generic/tclProc.c:1075 #17 0x80bd775 in EvalObjv (interp=0x8108b80, objc=6, objv=0xbfffdb80, command=0x8160460 "tcltest::runTest io-36.5 {Tcl_InputBlocked vs files, short read, nonblocking} {\n removeFile test1\n set f [open test1 w]\n puts $f abcdefghijklmnop\n close $f\n set f [open test1 r]\n fco"..., length=472, flags=0) at ./../generic/tclParse.c:932 #18 0x80be10c in Tcl_EvalEx (interp=0x8108b80, script=0x8160460 "tcltest::runTest io-36.5 {Tcl_InputBlocked vs files, short read, nonblocking} {\n removeFile test1\n set f [open test1 w]\n puts $f abcdefghijklmnop\n close $f\n set f [open test1 r]\n fco"..., numBytes=472, flags=262144) at ./../generic/tclParse.c:1450 ... ---------------------------------------------------------------------- Comment By: Andreas Kupries (andreas_kupries) Date: 2001-09-26 21:52 Message: Logged In: YES user_id=75003 Just tried head on the AS solaris/sparc host. Two failures in the testsuite (cmdAH.test, fCmd.test, see below), seemingly unrelated. No segfaults. cmdAH-16.3 Tcl_FileObjCmd: readable FAILED fCmd-17.1 mkdir stat failing on target but not ENOENT FAILED ---------------------------------------------------------------------- Comment By: Andreas Kupries (andreas_kupries) Date: 2001-09-26 21:11 Message: Logged In: YES user_id=75003 On what architecture ? I had no segfaults on Linux/i686. My I have stacktraces for a core compiled with --enable-symbols ? ---------------------------------------------------------------------- You can respond by visiting: http://sourceforge.net/tracker/?func=detail&atid=110894&aid=465494&group_id=10894 |