invalid fastbin entry (free) detected in close_thread_tables

[Philip Stoev]

The following INSERT + DELETE RQG workload causes the following crash:

 2010-11-23T09:07:39 #3 0x000000307b6329c5 in raise (sig=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:64
# 2010-11-23T09:07:39 #4 0x000000307b6341a5 in abort () at abort.c:92
# 2010-11-23T09:07:39 #5 0x000000307b66fe2b in __libc_message (do_abort=2, fmt=0x307b743a78 "*** glibc detected *** %s: %s: 0x%s ***\n")
# 2010-11-23T09:07:39 at ../sysdeps/unix/sysv/linux/libc_fatal.c:186
# 2010-11-23T09:07:39 #6 0x000000307b675746 in malloc_printerr (action=3, str=0x307b741ba8 "invalid fastbin entry (free)", ptr=<value optimized out>) at malloc.c:6280
# 2010-11-23T09:07:39 #7 0x000000000064e081 in close_thread_tables (thd=0x2458c60) at sql_base.cc:1350
# 2010-11-23T09:07:39 #8 0x000000000061537c in dispatch_command (command=<value optimized out>, thd=0x2458c60, packet=0x245a570 "\001", packet_length=335563336)
# 2010-11-23T09:07:39 at sql_parse.cc:1701
# 2010-11-23T09:07:39 #9 0x00000000006168f1 in do_command (thd=0x2458c60) at sql_parse.cc:895
# 2010-11-23T09:07:39 #10 0x000000000060823f in handle_one_connection (arg=0x2458c60) at sql_connect.cc:1138
# 2010-11-23T09:07:39 #11 0x000000307ba07761 in start_thread (arg=0x7f5d65738710) at pthread_create.c:301
# 2010-11-23T09:07:39 #12 0x000000307b6e150d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:115

It is repeatable in about 50% of the test runs within 10 minutes from the start of the test.

[Philip Stoev (pstoev-askmonty)]

To reproduce with the RQG:

perl runall.pl --duration=1000000 --mysqld=--key_buffer_size=256M --mysqld=--myisam_recover=BACKUP,FORCE --mysqld=--log-output=none --mysqld=--thread_stack=256K --mysqld=--thread_cache_size=128 --mysqld=--table_cache=2048 --mysqld=-- max_heap_table_size=64M --mysqld=--skip-external-locking --mysqld=--open-files-limit=8000 --threads=30 --queries=100M --grammar=bug680408.yy --mysqld=--init-file=/full/path/to/bug680408.init --basedir=/home/philips/dreas/mariadb-5.1.50-Linux-x86_64

[Michael Widenius (monty)]

Have not been able to repeat this :(