#38975 [Asn->Fbk]: date() function causes php crash

ID: 38975 Updated by: derick@php.net Reported By: rachmel at avaya dot com -Status: Assigned +Status: Feedback Bug Type: Reproducible crash Operating System: WindRiver Linux PHP Version: 5.1.6 Assigned To: derick New Comment: I can not reproduce this at all. You didn't quite mention which timezone you are using, and did you set the timezone in php with the php.ini setting "date.timezone" or the function date_timezone_default_set()? Please provide more information. Previous Comments: ------------------------------------------------------------------------ [2006-10-10 20:21:45] makavy at avaya dot com I'm adding information about this bug as I'm working with the BUG originator (Nir). - This occurs on a powerpc (ppc) processor - The zoneinfo files where created using zic. (Maybe zic has problems with ppc, or maybe it's big-little endian issues with the zineinfo files...????) The backtrace looks like this: (gdb) backtrace #0 0x0f88cb7c in memcpy () from /lib/libc.so.6 #1 0x0f885eb0 in malloc () from /lib/libc.so.6 #2 0x1008f1c0 in timelib_parse_tzfile () #3 0x1006c714 in get_timezone_info () #4 0x1006c714 in get_timezone_info () #5 0x1006c714 in get_timezone_info () #6 0x1006c714 in get_timezone_info () #7 0x1006c714 in get_timezone_info () #8 0x1006c714 in get_timezone_info () #9 0x1006c714 in get_timezone_info () #10 0x1006c714 in get_timezone_info () #11 0x1006c714 in get_timezone_info () #12 0x1006c714 in get_timezone_info () #13 0x1006c714 in get_timezone_info () Previous frame inner to this frame (corrupt stack?) As you can see there is something wrong with gdb on ppc, we have a script that reconstructs the backtrace, and the output looks like this: (gdb) bt_script frame #: stack_frame_ptr backchain_ptr LR_save_word frame 0: 0xXXXXXXXX: 0xXXXXXXXX $1 = 0xf88cb7c <memcpy+324> frame 1: 0x7fffce10: 0x7fffce20 $2 = 0x18000000 frame 2: 0x7fffce20: 0x7fffce40 $3 = 0xf885eb0 <malloc+200> frame 3: 0x7fffce40: 0x7fffcea0 $4 = 0x1008f1c0 <timelib_parse_tzfile+472> frame 4: 0x7fffcea0: 0x7fffced0 $5 = 0x1006c714 <get_timezone_info+228> frame 5: 0x7fffced0: 0x7fffcf90 $6 = 0x1006c818 <php_format_date+128> frame 6: 0x7fffcf90: 0x7fffcfc0 $7 = 0x1006d9d4 <zif_date+128> frame 7: 0x7fffcfc0: 0x7fffd030 $8 = 0x102da424 <zend_do_fcall_common_helper_SPEC+3224> frame 8: 0x7fffd030: 0x7fffd120 $9 = 0x102d9660 <execute+484> frame 9: 0x7fffd120: 0x7fffd280 $10 = 0x102ae0b8 <zend_execute_scripts+392> frame 10: 0x7fffd280: 0x7ffff580 $11 = 0x10251a30 <php_execute_script+688> frame 11: 0x7ffff580: 0x7ffff9e0 $12 = 0x1035cdb4 <main+4276> frame 12: 0x7ffff9e0: 0x7ffffc00 $13 = 0xf82f940 <__libc_init_first+328> frame 13: 0x7ffffc00: 0x7ffffc10 $14 = 0xf82fa80 <__libc_start_main+196> Thanks, Erez ------------------------------------------------------------------------ [2006-10-03 15:14:33] tony2001@php.net Thank you for this bug report. To properly diagnose the problem, we need a backtrace to see what is happening behind the scenes. To find out how to generate a backtrace, please read http://bugs.php.net/bugs-generating-backtrace.php for *NIX and http://bugs.php.net/bugs-generating-backtrace-win32.php for Win32 Once you have generated a backtrace, please submit it to this bug report and change the status back to "Open". Thank you for helping us make PHP better. ------------------------------------------------------------------------ [2006-10-03 11:54:42] rachmel at avaya dot com Tried the latest CVS version - still crashes, using the same code. ------------------------------------------------------------------------ [2006-09-27 15:45:27] tony2001@php.net Please try using this CVS snapshot: http://snaps.php.net/php5.2-latest.tar.gz For Windows: http://snaps.php.net/win32/php5.2-win32-latest.zip ------------------------------------------------------------------------ [2006-09-27 15:34:34] rachmel at avaya dot com Description: ------------ When changing the Linux's timezone (changing /etc/localtime) to something other than CEST and running php script with date related functions, the php crashes and causes a segmentation fault. Reproduce code: --------------- <?php echo date("l"); ?> Expected result: ---------------- should print the current day of the week. Actual result: -------------- segmentation fault (core dumped) ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=38975&edit=1