Hello ChingChang,
How big is tempString? What kind of type is it? I wonder if you're
trashing the stack with the sprintf.
What happens if you replace all the sprinfs with some simple inserts
inserted directly into vector?
dbStatements.push_back("INSERT INTO...");
You need to simplify your test till you figure out what's wrong.
C
Tuesday, November 1, 2011, 7:09:09 PM, you wrote:
CH> Do you know why it goes to core dump?
CH> ChingChang
CH> The source code is shown as below,
CH> vector<string> dbStatements;
CH> dbStatements.push_back( "BEGIN TRANSACTION;" );
CH> for ( int x = 0; x < 10; x++ ) {
CH> sprintf( tempString,
CH> "update utilization_table set
CH> utilization=%5.2f,sample=%d where slot='0' and device='cavium' and
CH> resource='bus' and sample='%d';",
CH> ntohd(msg->bus_util[x]),
CH> x,
CH> x );
CH> dbStatements.push_back( tempString );
CH> sprintf( tempString,
CH> "update utilization_table set
CH> utilization=%5.2f,sample=%d where slot='0' and device='cavium' and
CH> resource='icache' and sample='%d';",
CH> 100.00-ntohd(msg->inst_hit_rate[x]), // Convert to misses
CH> x,
CH> x );
CH> dbStatements.push_back( tempString );
CH> sprintf( tempString,
CH> "update utilization_table set
CH> utilization=%5.2f,sample=%d where slot='0' and device='cavium' and
CH> resource='dcache' and sample='%d';",
CH> 100.00-ntohd(msg->data_hit_rate[x]), // Convert to misses
CH> x,
CH> x );
CH> dbStatements.push_back( tempString );
CH> }
CH> dbStatements.push_back( "COMMIT;" );
CH> // populate the DB
CH> vector<string>::iterator dbStatementsIter;
CH> SqlQuery oper_db(operDatabase, __FILE__, __LINE__);
CH> for ( dbStatementsIter = dbStatements.begin(); dbStatementsIter
CH> != dbStatements.end(); dbStatementsIter++ ) {
CH> oper_db.execw( *(dbStatementsIter) );
CH> }
CH> dbStatements.clear();
CH> The core dump is shown as below.
CH> #0 0x32e94b04 in raise () from /lib/libc.so.6
CH> #1 0x32e962f4 in abort () from /lib/libc.so.6
CH> #2 0x32e8c2a4 in __assert_fail () from /lib/libc.so.6
CH> #3 0x32ae60cc in ?? () from /ovn/lib/libsqlite3.mgmt-crd.so
CH> #4 0x32b4c324 in ?? () from /ovn/lib/libsqlite3.mgmt-crd.so
CH> #5 0x32ba12c0 in ?? () from /ovn/lib/libsqlite3.mgmt-crd.so
CH> #6 0x32b7926c in sqlite3_step () from /ovn/lib/libsqlite3.mgmt-crd.so
CH> #7 0x32b7a2c4 in sqlite3_exec () from /ovn/lib/libsqlite3.mgmt-crd.so
CH> #8 0x329a9630 in SqlQuery::execw () from /ovn/lib/libPlatform.so
CH> #9 0x329a98e8 in SqlQuery::execw () from /ovn/lib/libPlatform.so
CH> #10 0x10010290 in NpuMessageHandler::processUtilReport
CH> (this=<value optimized out>, msg=<value optimized out>,
CH> nbytes=<value optimized out>) at cavium_driver.cpp:1387
CH> #11 0x10012808 in NpuMessageHandler::run (this=0x38be1008) at
cavium_driver.cpp:954
CH> #12 0x328a65b0 in Thread::start_thread () from
/ovn/lib/libCommon.mgmt-crd.so
CH> #13 0x3278b5cc in ?? () from /lib/libpthread.so.0
CH> #14 0x32f39b88 in clone () from /lib/libc.so.6
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--
Best regards,
Teg mailto:[email protected]
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