If following situation a bug in mysql?.
Mysql Version: mysql.x86_64 5.0.77-4.el5_4.1
Kernel: Linux box2 2.6.18-128.el5 #1 SMP Wed Jan 21 10:41:14 EST 2009 x86_64 x86_64 x86_64 GNU/Linux
LATEST DETECTED DEADLOCK
100125 4:24:41
* (1) TRANSACTION:
TRANSACTION 0 210510625, ACTIVE 155 sec, process no 28125, OS thread id 1243162944 starting index read
mysql tables in use 1, locked 1
LOCK WAIT 5 lock struct(s), heap size 1216, undo log entries 1
MySQL thread id 162928579, query id 527252744 box22 172.16.11.105 user updating
delete from user_grid_items where user_id = 669786974 and START_X = 45 and START_Y = 65
* (1) WAITING FOR THIS LOCK TO BE GRANTED:
RECORD LOCKS space id 0 page no 61372 n bits 328 index PRIMARY of table gamesutra_beta/user_grid_items trx id 0 210510625 lock_mode X locks rec but not gap waiting
Record lock, heap no 127 PHYSICAL RECORD: n_fields 10; compact format; info bits 0
0: len 8; hex 0000000027ec235e; asc ' #^;; 1: len 4; hex 0000002d; asc -;; 2: len 4; hex 00000041; asc A;; 3: len 6; hex 00000b561243; asc V C;; 4: len 7; hex 80000040070110; asc @ ;; 5: len 23; hex 474949445f414e494d414c535f53515549445f50494e4b; asc GIID_ANIMALS_SQUID_PINK;; 6: len 4; hex cb59f060; asc Y ;; 7: len 4; hex 4b59f060; asc KY;; 8: len 4; hex 80000000; asc ;; 9: len 1; hex 80; asc ;;
* (2) TRANSACTION:
TRANSACTION 0 210505911, ACTIVE 555 sec, process no 28125, OS thread id 1184323904 starting index read, thread declared inside InnoDB 500
mysql tables in use 1, locked 1
5 lock struct(s), heap size 1216, undo log entries 1
MySQL thread id 162924258, query id 527252762 box22 172.16.11.105 user updating
delete from user_grid_items where user_id = 669786974 and START_X = 45 and START_Y = 65
* (2) HOLDS THE LOCK(S):
RECORD LOCKS space id 0 page no 61372 n bits 328 index PRIMARY of table gamesutra_beta/user_grid_items trx id 0 210505911 lock mode S locks rec but not gap
Record lock, heap no 127 PHYSICAL RECORD: n_fields 10; compact format; info bits 0
0: len 8; hex 0000000027ec235e; asc ' #^;; 1: len 4; hex 0000002d; asc -;; 2: len 4; hex 00000041; asc A;; 3: len 6; hex 00000b561243; asc V C;; 4: len 7; hex 80000040070110; asc @ ;; 5: len 23; hex 474949445f414e494d414c535f53515549445f50494e4b; asc GIID_ANIMALS_SQUID_PINK;; 6: len 4; hex cb59f060; asc Y ;; 7: len 4; hex 4b59f060; asc KY;; 8: len 4; hex 80000000; asc ;; 9: len 1; hex 80; asc ;;
* (2) WAITING FOR THIS LOCK TO BE GRANTED:
RECORD LOCKS space id 0 page no 61372 n bits 328 index PRIMARY of table gamesutra_beta/user_grid_items trx id 0 210505911 lock_mode X locks rec but not gap waiting
Record lock, heap no 127 PHYSICAL RECORD: n_fields 10; compact format; info bits 0
0: len 8; hex 0000000027ec235e; asc ' #^;; 1: len 4; hex 0000002d; asc -;; 2: len 4; hex 00000041; asc A;; 3: len 6; hex 00000b561243; asc V C;; 4: len 7; hex 80000040070110; asc @ ;; 5: len 23; hex 474949445f414e494d414c535f53515549445f50494e4b; asc GIID_ANIMALS_SQUID_PINK;; 6: len 4; hex cb59f060; asc Y ;; 7: len 4; hex 4b59f060; asc KY;; 8: len 4; hex 80000000; asc ;; 9: len 1; hex 80; asc ;;