#35243 [Opn->Csd]: Crashes in php_mblen when compiled with thread-safety on Linux

ID: 35243 Updated by: sniper@php.net Reported By: shulmanb at il dot ibm dot com -Status: Open +Status: Closed Bug Type: *General Issues Operating System: Linux PHP Version: 5CVS-2005-11-19 (snap) New Comment: This bug has been fixed in CVS. Snapshots of the sources are packaged every three hours; this change will be in the next snapshot. You can grab the snapshot at http://snaps.php.net/. Thank you for the report, and for helping us make PHP better. Previous Comments: ------------------------------------------------------------------------ [2005-11-18 17:18:24] shulmanb at il dot ibm dot com Done. Can be found at: http://news.php.net/php.internals/20164 ------------------------------------------------------------------------ [2005-11-16 18:18:33] sniper@php.net And if it's still a problem, provide the patch in unified diff format. ------------------------------------------------------------------------ [2005-11-16 16:07:01] shulmanb at il dot ibm dot com Description: ------------ When running on Linux with --enable-maintainer-zts (and yes, I know it's not wise...), crashes sometimes happen in ext/standard/php_string.h when using the php_mblen macro. This happens because in ext/standard/basic_functions.c, in the basic_globals_ctor function, the value of mblen_state is not initialized. The basic_globals_ctor function should include the following lines as part of the initialization: #if defined(_REENTRANT)&&defined(HAVE_MBRLEN)&&defined(HAVE_MBSTATE_T) memset(&BG(mblen_state), 0, sizeof(BG(mblen_state))); #endif Unfortunately, I am unable to include code that demonstrate this, as the crash strongly depends on the (random) value of mblen_state. ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=35243&edit=1