Description:
stewart@faith:~/MySQL/5.1/bug18798/mysql-test$ gdb ../sql/mysqld
(gdb) core var/master-data/core.17517
Core was generated by `/home/stewart/MySQL/5.1/bug18798/sql/mysqld --no-defaults --console --basedir=/'.
Program terminated with signal 6, Aborted.
(gdb) bt
#0 0xffffe410 in __kernel_vsyscall ()
#1 0xb7edea98 in pthread_kill () from /lib/tls/i686/cmov/libpthread.so.0
#2 0x083a3015 in write_core (sig=6) at stacktrace.c:220
#3 0x0823c945 in handle_segfault (sig=6) at mysqld.cc:2134
#4 <signal handler called>
#5 0xffffe410 in __kernel_vsyscall ()
#6 0xb7c8b9a1 in raise () from /lib/tls/i686/cmov/libc.so.6
#7 0xb7c8d2b9 in abort () from /lib/tls/i686/cmov/libc.so.6
#8 0xb7cbf87a in __fsetlocking () from /lib/tls/i686/cmov/libc.so.6
#9 0xb7cc5fd4 in malloc_usable_size () from /lib/tls/i686/cmov/libc.so.6
#10 0xb7cc634a in free () from /lib/tls/i686/cmov/libc.so.6
#11 0xb7e678b1 in operator delete () from /usr/lib/libstdc++.so.6
#12 0xb7e678fd in operator delete[] () from /usr/lib/libstdc++.so.6
#13 0x085ebebb in EventBufData_list::add_gci_op (this=0xaaff19bc, g={op = 0x9370078, event_types = 1},
del=false) at NdbEventOperationImpl.cpp:2218
#14 0x085f4898 in EventBufData_list::append_data (this=0xaaff19bc, data=0xab7de0d8)
at NdbEventOperationImpl.hpp:207
#15 0x085f2921 in NdbEventBuffer::insertDataL (this=0x8a52ff0, op=0x9370078, sdata=0x8a21110,
ptr=0xb3159c04) at NdbEventOperationImpl.cpp:1614
#16 0x085d25b7 in Ndb::handleReceivedSignal (this=0x8a499d0, aSignal=0xb3159adc, ptr=0xb3159c04)
at Ndbif.cpp:751
#17 0x085d2d37 in Ndb::executeMessage (NdbObject=0x8a499d0, aSignal=0xb3159adc, ptr=0xb3159c04)
at Ndbif.cpp:176
---Type <return> to continue, or q <return> to quit---q
Quit
(gdb) up 13
#13 0x085ebebb in EventBufData_list::add_gci_op (this=0xaaff19bc, g={op = 0x9370078, event_types = 1},
del=false) at NdbEventOperationImpl.cpp:2218
2218 delete [] old_list;
(gdb) print old_list
$1 = (EventBufData_list::Gci_op *) 0xaf351d00
(gdb) print *old_list
$2 = {op = 0xaf3b0598, event_types = 1}
(gdb) print old_list[0]
$3 = {op = 0xaf3b0598, event_types = 1}
(gdb) print old_list[0].op
$4 = (NdbEventOperationImpl *) 0xaf3b0598
(gdb) print *old_list[0].op
$5 = {<NdbEventOperation> = {m_impl = @0x65}, m_facade = 0x15, m_magic_number = 0, m_error = {
status = TemporaryError, classification = 2938626512, code = 37, mysql_code = 2990, message = 0x0,
details = 0xaf02f448 "x"}, m_ndb = 0x0, m_eventImpl = 0x1, theFirstPkAttrs = {0xf85aec56, 0x20},
theCurrentPkAttrs = {0x83d, 0x4c}, theFirstDataAttrs = {0xa4e, 0xd}, theCurrentDataAttrs = {0x0, 0x0},
theBlobList = 0x0, theBlobOpList = 0x24, theMainOp = 0x4, m_state = 65540, mi_type = 131076,
m_eventId = 196612, m_oid = 4, m_mergeEvents = 4, m_data_item = 0x20004, m_custom_data = 0x30004,
m_has_error = 262148, m_fragmentId = 327684, m_buffer = {data = 0x60004, len = 458760,
alloc_size = 524296}, m_change_mask = 589849, m_data_done_count = 934, m_data_count = 7,
m_next = 0x1, m_prev = 0x4}
(gdb) up
#14 0x085f4898 in EventBufData_list::append_data (this=0xaaff19bc, data=0xab7de0d8)
at NdbEventOperationImpl.hpp:207
207 add_gci_op(g);
(gdb) down
#13 0x085ebebb in EventBufData_list::add_gci_op (this=0xaaff19bc, g={op = 0x9370078, event_types = 1},
del=false) at NdbEventOperationImpl.cpp:2218
2218 delete [] old_list;
(gdb) list
2213 Gci_op* old_list = m_gci_op_list;
2214 m_gci_op_list = new Gci_op [n];
2215 if (m_gci_op_alloc != 0) {
2216 Uint32 bytes = m_gci_op_alloc * sizeof(Gci_op);
2217 memcpy(m_gci_op_list, old_list, bytes);
2218 delete [] old_list;
2219 }
2220 m_gci_op_alloc = n;
2221 }
2222 assert(m_gci_op_count < m_gci_op_alloc);
(gdb) print this
$6 = (EventBufData_list * const) 0xaaff19bc
(gdb) print *this
$7 = {m_head = 0xab71695c, m_tail = 0xab7de10c, m_count = 120, m_sz = 59520, {m_gci_op_list = 0xaf351d10,
m_gci_ops_list = 0xaf351d10}, {m_gci_op_count = 1, m_gci_ops_list_tail = 0x1}, {m_gci_op_alloc = 1,
m_is_not_multi_list = 1}}
How to repeat:
I saved the backtrace but didn't write what on earth I was doing down.....
loading DBT2 IIRC though.
Suggested fix:
find why it's crashing and fix it.
Description: stewart@faith:~/MySQL/5.1/bug18798/mysql-test$ gdb ../sql/mysqld (gdb) core var/master-data/core.17517 Core was generated by `/home/stewart/MySQL/5.1/bug18798/sql/mysqld --no-defaults --console --basedir=/'. Program terminated with signal 6, Aborted. (gdb) bt #0 0xffffe410 in __kernel_vsyscall () #1 0xb7edea98 in pthread_kill () from /lib/tls/i686/cmov/libpthread.so.0 #2 0x083a3015 in write_core (sig=6) at stacktrace.c:220 #3 0x0823c945 in handle_segfault (sig=6) at mysqld.cc:2134 #4 <signal handler called> #5 0xffffe410 in __kernel_vsyscall () #6 0xb7c8b9a1 in raise () from /lib/tls/i686/cmov/libc.so.6 #7 0xb7c8d2b9 in abort () from /lib/tls/i686/cmov/libc.so.6 #8 0xb7cbf87a in __fsetlocking () from /lib/tls/i686/cmov/libc.so.6 #9 0xb7cc5fd4 in malloc_usable_size () from /lib/tls/i686/cmov/libc.so.6 #10 0xb7cc634a in free () from /lib/tls/i686/cmov/libc.so.6 #11 0xb7e678b1 in operator delete () from /usr/lib/libstdc++.so.6 #12 0xb7e678fd in operator delete[] () from /usr/lib/libstdc++.so.6 #13 0x085ebebb in EventBufData_list::add_gci_op (this=0xaaff19bc, g={op = 0x9370078, event_types = 1}, del=false) at NdbEventOperationImpl.cpp:2218 #14 0x085f4898 in EventBufData_list::append_data (this=0xaaff19bc, data=0xab7de0d8) at NdbEventOperationImpl.hpp:207 #15 0x085f2921 in NdbEventBuffer::insertDataL (this=0x8a52ff0, op=0x9370078, sdata=0x8a21110, ptr=0xb3159c04) at NdbEventOperationImpl.cpp:1614 #16 0x085d25b7 in Ndb::handleReceivedSignal (this=0x8a499d0, aSignal=0xb3159adc, ptr=0xb3159c04) at Ndbif.cpp:751 #17 0x085d2d37 in Ndb::executeMessage (NdbObject=0x8a499d0, aSignal=0xb3159adc, ptr=0xb3159c04) at Ndbif.cpp:176 ---Type <return> to continue, or q <return> to quit---q Quit (gdb) up 13 #13 0x085ebebb in EventBufData_list::add_gci_op (this=0xaaff19bc, g={op = 0x9370078, event_types = 1}, del=false) at NdbEventOperationImpl.cpp:2218 2218 delete [] old_list; (gdb) print old_list $1 = (EventBufData_list::Gci_op *) 0xaf351d00 (gdb) print *old_list $2 = {op = 0xaf3b0598, event_types = 1} (gdb) print old_list[0] $3 = {op = 0xaf3b0598, event_types = 1} (gdb) print old_list[0].op $4 = (NdbEventOperationImpl *) 0xaf3b0598 (gdb) print *old_list[0].op $5 = {<NdbEventOperation> = {m_impl = @0x65}, m_facade = 0x15, m_magic_number = 0, m_error = { status = TemporaryError, classification = 2938626512, code = 37, mysql_code = 2990, message = 0x0, details = 0xaf02f448 "x"}, m_ndb = 0x0, m_eventImpl = 0x1, theFirstPkAttrs = {0xf85aec56, 0x20}, theCurrentPkAttrs = {0x83d, 0x4c}, theFirstDataAttrs = {0xa4e, 0xd}, theCurrentDataAttrs = {0x0, 0x0}, theBlobList = 0x0, theBlobOpList = 0x24, theMainOp = 0x4, m_state = 65540, mi_type = 131076, m_eventId = 196612, m_oid = 4, m_mergeEvents = 4, m_data_item = 0x20004, m_custom_data = 0x30004, m_has_error = 262148, m_fragmentId = 327684, m_buffer = {data = 0x60004, len = 458760, alloc_size = 524296}, m_change_mask = 589849, m_data_done_count = 934, m_data_count = 7, m_next = 0x1, m_prev = 0x4} (gdb) up #14 0x085f4898 in EventBufData_list::append_data (this=0xaaff19bc, data=0xab7de0d8) at NdbEventOperationImpl.hpp:207 207 add_gci_op(g); (gdb) down #13 0x085ebebb in EventBufData_list::add_gci_op (this=0xaaff19bc, g={op = 0x9370078, event_types = 1}, del=false) at NdbEventOperationImpl.cpp:2218 2218 delete [] old_list; (gdb) list 2213 Gci_op* old_list = m_gci_op_list; 2214 m_gci_op_list = new Gci_op [n]; 2215 if (m_gci_op_alloc != 0) { 2216 Uint32 bytes = m_gci_op_alloc * sizeof(Gci_op); 2217 memcpy(m_gci_op_list, old_list, bytes); 2218 delete [] old_list; 2219 } 2220 m_gci_op_alloc = n; 2221 } 2222 assert(m_gci_op_count < m_gci_op_alloc); (gdb) print this $6 = (EventBufData_list * const) 0xaaff19bc (gdb) print *this $7 = {m_head = 0xab71695c, m_tail = 0xab7de10c, m_count = 120, m_sz = 59520, {m_gci_op_list = 0xaf351d10, m_gci_ops_list = 0xaf351d10}, {m_gci_op_count = 1, m_gci_ops_list_tail = 0x1}, {m_gci_op_alloc = 1, m_is_not_multi_list = 1}} How to repeat: I saved the backtrace but didn't write what on earth I was doing down..... loading DBT2 IIRC though. Suggested fix: find why it's crashing and fix it.