Bug #819 Updated: core dump in standalone binary (CGI)

ID: 819 User Update by: matt@debris.com Status: Open Bug Type: Reproduceable crash Description: core dump in standalone binary (CGI) My script has now crashed three nights running. Backtraces for all three are shown below. I have a full test environment set up and waiting for anyone who wants to look into this. All you need to do is log in and run the program. This is a nightly batch script executed via cron using a standalone PHP binary. do-conf: ./configure --with-gd=no --with-mysql=/usr/local/mysql --with-config-file-path=/usr/local/apache/etc --enable-track-vars=yes uname -a: BSD/OS x.y.z 3.0 BSDI BSD/OS 3.0 The only error output I get is via crond: "Segmentation fault - core dumped" I don't know for sure where in my script PHP died, but I'm guessing it was within a routine that builds an array of 45,000 items and then loops through it, doing database cleanup along the way. These nested loops generate as many as 47,000 database (MySQL) transactions -- 45k SELECTs and anywhere from a few dozen to perhaps 2000 DELETEs. This was a 3.0.4 crash: Program terminated with signal 11, Segmentation fault. #0 0x209ab in _php3_hash_find (ht=0xa7fa4, arKey=0x0, nKeyLength=18, pData=0xefbfd000) at php3_hash.c:834 834 HANDLE_NUMERIC(arKey, nKeyLength, _php3_hash_index_find(ht,idx,pData)); (gdb) bt #0 0x209ab in _php3_hash_find (ht=0xa7fa4, arKey=0x0, nKeyLength=18, pData=0xefbfd000) at php3_hash.c:834 #1 0xe1ea in phpparse () at control_structures_inline.h:848 #2 0x1f01a in php3_parse (yyin=0xa5d24) at main.c:1461 #3 0x1faa5 in main (argc=3, argv=0xefbfdefc) at main.c:1769 This was a 3.0.5 crash: Program terminated with signal 11, Segmentation fault. #0 0x20aeb in _php3_hash_find (ht=0xa9008, arKey=0x0, nKeyLength=18, pData=0xefbfd000) at php3_hash.c:834 834 HANDLE_NUMERIC(arKey, nKeyLength, _php3_hash_index_find(ht,idx,pData)); (gdb) bt #0 0x20aeb in _php3_hash_find (ht=0xa9008, arKey=0x0, nKeyLength=18, pData=0xefbfd000) at php3_hash.c:834 #1 0xe28e in phpparse () at control_structures_inline.h:856 #2 0x1f15a in php3_parse (yyin=0xa6d54) at main.c:1465 #3 0x1fbe5 in main (argc=3, argv=0xefbfdefc) at main.c:1773 Another 3.0.5 crash: Program terminated with signal 11, Segmentation fault. #0 0x20aeb in _php3_hash_find (ht=0xa9008, arKey=0x0, nKeyLength=18, pData=0xefbfd000) at php3_hash.c:834 834 HANDLE_NUMERIC(arKey, nKeyLength, _php3_hash_index_find(ht,idx,pData)); (gdb) bt #0 0x20aeb in _php3_hash_find (ht=0xa9008, arKey=0x0, nKeyLength=18, pData=0xefbfd000) at php3_hash.c:834 #1 0xe28e in phpparse () at control_structures_inline.h:856 #2 0x1f15a in php3_parse (yyin=0xa6d54) at main.c:1465 #3 0x1fbe5 in main (argc=3, argv=0xefbfdefc) at main.c:1773 As I've said above, I have a full test environment running on a spare server -- a snapshot of the db, the code, etc. Anyone who wants to test/debug this is invited to send me their ssh public keys so I can set up a login account. -- update - 10/10 Last night's backtrace was nearly identical to the one above. Tonight's has a few more lines; maybe they're helpful. Program terminated with signal 11, Segmentation fault. #0 0x20aeb in _php3_hash_find (ht=0xa1474, arKey=0x0, nKeyLength=12, pData=0xefbfceb8) at php3_hash.c:834 834 HANDLE_NUMERIC(arKey, nKeyLength, _php3_hash_index_find(ht,idx,pData)); (gdb) bt #0 0x20aeb in _php3_hash_find (ht=0xa1474, arKey=0x0, nKeyLength=12, pData=0xefbfceb8) at php3_hash.c:834 #1 0x2aad0 in php3_get_constant (name=0x13c3c4 "mysql_query", name_len=11, result=0xefbfcee8) at constants.c:195 #2 0x1bd12 in lex_scan (phplval=0xefbfd04c) at language-scanner.lex:862 #3 0x242f9 in read_next_token (tcm=0xa870c, token=0xefbfcf40, phplval=0xefbfd04c) at token_cache.c:139 #4 0x1d54f in phplex (phplval=0xefbfd04c) at main.c:435 #5 0x94fe in phpparse () at /usr/lib/bison.simple:387 #6 0x1f15a in php3_parse (yyin=0xa6d54) at main.c:1465 #7 0x1fbe5 in main (argc=3, argv=0xefbfdefc) at main.c:1773 This script dies nearly every night now so I'm pretty confident when I say I can reproduce this crash at will. Full Bug description available at: http://ca.php.net/bugs.php3?id=819 -- PHP Development Mailing List http://www.php.net/ To unsubscribe send an empty message to php-dev-unsubscribe@lists.php.net For help: php-dev-help@lists.php.net