Description:
When executing a transactional RQG workload, the following crash happened only once out of many runs:
#4 0x0000000000993285 in Table::fetch (this=0x7fd29d43b6c0,
recordNumber=-286331154) at Table.cpp:929
#5 0x00000000009af0a7 in BackLog::rollbackRecords (this=0x7fd29d12c9a0,
records=0x7fd29d0ade58, transaction=0x33b4ca8) at BackLog.cpp:112
#6 0x00000000009a6db9 in Transaction::rollback (this=0x33b4ca8)
at Transaction.cpp:420
#7 0x00000000009c73aa in Connection::rollback (this=0x7fd29d11cc58)
at Connection.cpp:282
#8 0x0000000000977ca5 in StorageConnection::rollback (this=0x7fd29d0ca018)
at StorageConnection.cpp:191
#9 0x000000000097032f in StorageInterface::rollback (hton=0x7fd2981b6868,
thd=0x7fd298eb6908, all=false) at ha_falcon.cpp:1319
#10 0x000000000081c004 in ha_rollback_trans (thd=0x7fd298eb6908, all=false)
at handler.cc:1297
#11 0x00000000008ea94b in trans_rollback_stmt (thd=0x7fd298eb6908)
at transaction.cc:263
#12 0x00000000006dea9a in dispatch_command (command=COM_QUERY,
thd=0x7fd298eb6908,
packet=0x7fd298ec1209 "DELETE FROM `table10000_falcon_int_autoinc` WHERE `char_64_latin1_not_null_key` <> 'because' LIMIT 6", packet_length=101)
at sql_parse.cc:1383
#13 0x00000000006deff1 in do_command (thd=0x7fd298eb6908) at sql_parse.cc:691
#14 0x00000000006ccf71 in handle_one_connection (arg=0x7fd298eb6908)
at sql_connect.cc:1146
#15 0x000000315b0073da in start_thread () from /lib64/libpthread.so.0
#16 0x000000315a4e627d in clone () from /lib64/libc.so.6
924 if (records)
925 {
926 RecordSection *section = records;
927 int id = recordNumber;
928
929 while (section->base) <<<<<<<<< HERE
930 {
931 int slot = id / section->base;
932 id = id % section->base;
(gdb) print section
$1 = (class RecordSection *) 0x1c
(gdb) print section->base
Cannot access memory at address 0x1c
(gdb) print records
$2 = (class RecordSection *) 0x7fd29d0d0330
(gdb) print id
$3 = -54
(gdb) print slot
$4 = {uchar *((anonymous namespace)::Row_data_memory * const, uint)} 0x6a5adc <slot>
How to repeat:
perl runall.pl --engine=Falcon --reporters=Deadlock,ErrorLog,Backtrace,Recovery --mysqld=--loose-falcon-lock-wait-timeout=1 --mysqld=--loose-innodb-lock-wait-timeout=1 --mysqld=--log-output=none --mysqld=--skip-safemalloc --mysqld=--falcon-page-size=16K --mem --rows=10000 --threads=32 --mysqld=--falcon-checkpoint-schedule='1 1 1 1 1' --basedir=/build/bzr/6.0-falcon-team --mask=38362 --queries=100000000 --duration=900 --gendata=conf/combinations.zz --grammar=conf/combinations.yy
Description: When executing a transactional RQG workload, the following crash happened only once out of many runs: #4 0x0000000000993285 in Table::fetch (this=0x7fd29d43b6c0, recordNumber=-286331154) at Table.cpp:929 #5 0x00000000009af0a7 in BackLog::rollbackRecords (this=0x7fd29d12c9a0, records=0x7fd29d0ade58, transaction=0x33b4ca8) at BackLog.cpp:112 #6 0x00000000009a6db9 in Transaction::rollback (this=0x33b4ca8) at Transaction.cpp:420 #7 0x00000000009c73aa in Connection::rollback (this=0x7fd29d11cc58) at Connection.cpp:282 #8 0x0000000000977ca5 in StorageConnection::rollback (this=0x7fd29d0ca018) at StorageConnection.cpp:191 #9 0x000000000097032f in StorageInterface::rollback (hton=0x7fd2981b6868, thd=0x7fd298eb6908, all=false) at ha_falcon.cpp:1319 #10 0x000000000081c004 in ha_rollback_trans (thd=0x7fd298eb6908, all=false) at handler.cc:1297 #11 0x00000000008ea94b in trans_rollback_stmt (thd=0x7fd298eb6908) at transaction.cc:263 #12 0x00000000006dea9a in dispatch_command (command=COM_QUERY, thd=0x7fd298eb6908, packet=0x7fd298ec1209 "DELETE FROM `table10000_falcon_int_autoinc` WHERE `char_64_latin1_not_null_key` <> 'because' LIMIT 6", packet_length=101) at sql_parse.cc:1383 #13 0x00000000006deff1 in do_command (thd=0x7fd298eb6908) at sql_parse.cc:691 #14 0x00000000006ccf71 in handle_one_connection (arg=0x7fd298eb6908) at sql_connect.cc:1146 #15 0x000000315b0073da in start_thread () from /lib64/libpthread.so.0 #16 0x000000315a4e627d in clone () from /lib64/libc.so.6 924 if (records) 925 { 926 RecordSection *section = records; 927 int id = recordNumber; 928 929 while (section->base) <<<<<<<<< HERE 930 { 931 int slot = id / section->base; 932 id = id % section->base; (gdb) print section $1 = (class RecordSection *) 0x1c (gdb) print section->base Cannot access memory at address 0x1c (gdb) print records $2 = (class RecordSection *) 0x7fd29d0d0330 (gdb) print id $3 = -54 (gdb) print slot $4 = {uchar *((anonymous namespace)::Row_data_memory * const, uint)} 0x6a5adc <slot> How to repeat: perl runall.pl --engine=Falcon --reporters=Deadlock,ErrorLog,Backtrace,Recovery --mysqld=--loose-falcon-lock-wait-timeout=1 --mysqld=--loose-innodb-lock-wait-timeout=1 --mysqld=--log-output=none --mysqld=--skip-safemalloc --mysqld=--falcon-page-size=16K --mem --rows=10000 --threads=32 --mysqld=--falcon-checkpoint-schedule='1 1 1 1 1' --basedir=/build/bzr/6.0-falcon-team --mask=38362 --queries=100000000 --duration=900 --gendata=conf/combinations.zz --grammar=conf/combinations.yy