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when trying to close a pipe that is currently being waited on by
the notifier thread. [Bug: 607]
* unix/tclUnixFCmd.c (GetPermissionsAttribute): Increase size of
returnString buffer to avoid overflow.
* generic/tclThreadTest.c (TclThreadSend): Fixed memory leak due
to use of TCL_VOLATILE instead of TCL_DYNAMIC.
* generic/tclThread.c (TclRememberSyncObject): Fixed memory leak
caused by failure to reuse condition variables.
* unix/tclUnixNotfy.c: (Tcl_AlertNotifier, Tcl_WaitForEvent,
NotifierThreadProc, Tcl_InitNotifier): Fixed race condition caused
by incorrect use of condition variables when sending messages
between threads.. [Bug: 607]
* generic/tclTestObj.c (TeststringobjCmd): MAX_STRINGS was off by one
so the strings array was too small.
* generic/tclCkalloc.c (Tcl_DbCkfree): Moved mutex lock so
ValidateMemory is done inside the mutex to avoid a race condition
when validate_memory is enabled. [Bug: 880]
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