| Bug #52165 | Assertion failed: file .\dtoa.c, line 465 | ||
|---|---|---|---|
| Submitted: | 18 Mar 2010 7:28 | Modified: | 12 May 2010 1:22 |
| Reporter: | Shane Bester (Platinum Quality Contributor) | Email Updates: | |
| Status: | Closed | Impact on me: | |
| Category: | MySQL Server: Data Types | Severity: | S1 (Critical) |
| Version: | 5.6.99-m4-debug, 5.5.4-m3] | OS: | Any |
| Assigned to: | Alexey Kopytov | CPU Architecture: | Any |
| Tags: | assertion, regression | ||
[18 Mar 2010 8:27]
Valeriy Kravchuk
Verified just as described with recent mysql-next-mr on Ubuntu: ... Version: '5.6.99-m4-debug' socket: '/tmp/mysql.sock' port: 3306 Source distribution mysqld: dtoa.c:465: my_strtod: Assertion `str != ((void *)0) && end != ((void *)0) && *end != ((void *)0) && error != ((void *)0)' failed. 100318 10:26:02 - mysqld got signal 6 ; This could be because you hit a bug. It is also possible that this binary or one of the libraries it was linked against is corrupt, improperly built, or misconfigured. This error can also be caused by malfunctioning hardware. We will try our best to scrape up some info that will hopefully help diagnose the problem, but since we have already crashed, something is definitely wrong and this may fail. key_buffer_size=8388608 read_buffer_size=131072 max_used_connections=1 max_threads=151 thread_count=1 connection_count=1 It is possible that mysqld could use up to key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads = 337841 K bytes of memory Hope that's ok; if not, decrease some variables in the equation. thd: 0x93ec1a0 Attempting backtrace. You can use the following information to find out where mysqld died. If you see no messages after this, something went terribly wrong... stack_bottom = 0xa88603b0 thread_stack 0x30000 /home2/openxs/dbs/next-mr/libexec/mysqld(my_print_stacktrace+0x26)[0x877fd41] /home2/openxs/dbs/next-mr/libexec/mysqld(handle_segfault+0x2ee)[0x82c7452] [0xb77a5420] /lib/tls/i686/cmov/libc.so.6(abort+0x101)[0xb75e8a01] /lib/tls/i686/cmov/libc.so.6(__assert_fail+0xee)[0xb75e010e] /home2/openxs/dbs/next-mr/libexec/mysqld(my_strtod+0x7a)[0x87bdade] /home2/openxs/dbs/next-mr/libexec/mysqld(my_strntod_8bit+0x3c)[0x879e221] /home2/openxs/dbs/next-mr/libexec/mysqld(_ZN19Item_func_numhybrid8val_realEv+0x202)[0x822364c] /home2/openxs/dbs/next-mr/libexec/mysqld(_ZN14Arg_comparator12compare_realEv+0x20)[0x8232778] /home2/openxs/dbs/next-mr/libexec/mysqld(_ZN14Arg_comparator7compareEv+0x49)[0x8216a0f] /home2/openxs/dbs/next-mr/libexec/mysqld(_ZN12Item_func_eq7val_intEv+0x43)[0x8236e71] /home2/openxs/dbs/next-mr/libexec/mysqld(_ZN4Item4sendEP8ProtocolP6String+0x1b2)[0x81f03cc] /home2/openxs/dbs/next-mr/libexec/mysqld(_ZN8Protocol19send_result_set_rowEP4ListI4ItemE+0xd9)[0x82b7e65] /home2/openxs/dbs/next-mr/libexec/mysqld(_ZN11select_send9send_dataER4ListI4ItemE+0xc5)[0x82ae007] /home2/openxs/dbs/next-mr/libexec/mysqld[0x834ce07] /home2/openxs/dbs/next-mr/libexec/mysqld[0x8353da1] /home2/openxs/dbs/next-mr/libexec/mysqld(_Z10sub_selectP4JOINP13st_join_tableb+0x13c)[0x8353fc6] /home2/openxs/dbs/next-mr/libexec/mysqld[0x836487b] /home2/openxs/dbs/next-mr/libexec/mysqld(_ZN4JOIN4execEv+0x22b4)[0x83750c6] /home2/openxs/dbs/next-mr/libexec/mysqld(_Z12mysql_selectP3THDPPP4ItemP10TABLE_LISTjR4ListIS1_ES2_jP8st_orderSB_S2_SB_yP13select_resultP18st_select_lex_unitP13st_select_lex+0x30d)[0x836fce9] /home2/openxs/dbs/next-mr/libexec/mysqld(_Z13handle_selectP3THDP3LEXP13select_resultm+0x1ec)[0x83753d6] /home2/openxs/dbs/next-mr/libexec/mysqld[0x82d8d4b] /home2/openxs/dbs/next-mr/libexec/mysqld(_Z21mysql_execute_commandP3THD+0x9c1)[0x82daa81] /home2/openxs/dbs/next-mr/libexec/mysqld(_Z11mysql_parseP3THDPKcjPS2_+0x229)[0x82e2cd1] /home2/openxs/dbs/next-mr/libexec/mysqld(_Z16dispatch_command19enum_server_commandP3THDPcj+0x9e0)[0x82e3846] /home2/openxs/dbs/next-mr/libexec/mysqld(_Z10do_commandP3THD+0x241)[0x82e4da5] /home2/openxs/dbs/next-mr/libexec/mysqld(_Z24do_handle_one_connectionP3THD+0x15b)[0x82d2001] /home2/openxs/dbs/next-mr/libexec/mysqld(handle_one_connection+0x25)[0x82d20bf] /lib/tls/i686/cmov/libpthread.so.0[0xb77844fb] /lib/tls/i686/cmov/libc.so.6(clone+0x5e)[0xb7692e5e] Trying to get some variables. Some pointers may be invalid and cause the dump to abort... thd->query at 0x945f820 = select coalesce(`t1`.`a`)=coalesce(`t1`.`b`) from `t1` thd->thread_id=1
[28 Mar 2010 12:12]
Guilhem Bichot
Regression source:
Alexey Kopytov 2009-12-22
revision-id:alexey.kopytov@sun.com-20091222162313-pzr8quwkw4y7aud6
Backport of WL #2934: Make/find library for doing float/double
to string conversions and vice versa"
Initial import of the dtoa.c code and custom wrappers around it
to allow its usage from the server code.
Found by bzrfind.
[2 Apr 2010 9:14]
Bugs System
A patch for this bug has been committed. After review, it may be pushed to the relevant source trees for release in the next version. You can access the patch from: http://lists.mysql.com/commits/104960 3008 Alexey Kopytov 2010-04-02 Bug #52165: Assertion failed: file .\dtoa.c, line 465 The failing assertion was written with the assumption that a NULL string can never be passed to my_strtod(). However, an empty string may be passed under some circumstances by passing str == NULL and *end == NULL to my_strtod(). Fixed the assertion to take the above case into account. @ mysql-test/r/func_misc.result Added a test case for bug #52165. @ mysql-test/t/func_misc.test Added a test case for bug #52165. @ strings/dtoa.c Fixed the assertion in my_strtod() to take the case of 'str == NULL && *end == NULL' into account.
[7 Apr 2010 10:00]
Bugs System
A patch for this bug has been committed. After review, it may be pushed to the relevant source trees for release in the next version. You can access the patch from: http://lists.mysql.com/commits/105136 3008 Alexey Kopytov 2010-04-07 Bug #52165: Assertion failed: file .\dtoa.c, line 465 The failing assertion was written with the assumption that a NULL string can never be passed to my_strtod(). However, an empty string may be passed under some circumstances by passing str == NULL and *end == NULL. Fixed the assertion to take the above case into account. @ mysql-test/r/func_misc.result Added a test case for bug #52165. @ mysql-test/t/func_misc.test Added a test case for bug #52165. @ strings/dtoa.c Fixed the assertion in my_strtod() to take the case of 'str == NULL && *end == NULL' into account.
[27 Apr 2010 9:45]
Bugs System
Pushed into 6.0.14-alpha (revid:alik@sun.com-20100427094135-5s49ecp3ckson6e2) (version source revid:alik@sun.com-20100427093843-uekr85qkd7orx12t) (merge vers: 6.0.14-alpha) (pib:16)
[27 Apr 2010 9:47]
Bugs System
Pushed into 5.5.5-m3 (revid:alik@sun.com-20100427093804-a2k3rrjpwu5jegu8) (version source revid:alik@sun.com-20100427093804-a2k3rrjpwu5jegu8) (merge vers: 5.5.5-m3) (pib:16)
[27 Apr 2010 9:50]
Bugs System
Pushed into mysql-next-mr (revid:alik@sun.com-20100427094036-38frbg3famdlvjup) (version source revid:alik@sun.com-20100427093825-92wc8b22d4yg34ju) (pib:16)
[12 May 2010 1:22]
Paul DuBois
Noted in 5.5.5, 6.0.14 changelogs. An assertion was raised as a result of a NULL string being passed to the dtoa code.
Description: Version: '5.6.99-m4-debug' socket: '' port: 3306 Source distribution Assertion failed: str != ((void *)0) && end != ((void *)0) && *end != ((void *)0) && error != ((void *)0), file .\dtoa.c, line 465 mysqld.exe!my_sigabrt_handler()[my_thr_init.c:519] mysqld.exe!raise()[winsig.c:590] mysqld.exe!abort()[abort.c:71] mysqld.exe!_wassert()[assert.c:212] mysqld.exe!my_strtod()[dtoa.c:465] mysqld.exe!my_strntod_8bit()[ctype-simple.c:830] mysqld.exe!Item_func_numhybrid::val_real()[item_func.cc:804] mysqld.exe!Arg_comparator::compare_real()[item_cmpfunc.cc:1353] mysqld.exe!Arg_comparator::compare()[item_cmpfunc.h:84] mysqld.exe!Item_func_eq::val_int()[item_cmpfunc.cc:1859] mysqld.exe!evaluate_join_record()[sql_select.cc:11522] mysqld.exe!sub_select()[sql_select.cc:11473] mysqld.exe!do_select()[sql_select.cc:11225] mysqld.exe!JOIN::exec()[sql_select.cc:2311] mysqld.exe!mysql_select()[sql_select.cc:2508] mysqld.exe!handle_select()[sql_select.cc:271] mysqld.exe!execute_sqlcom_select()[sql_parse.cc:4703] mysqld.exe!mysql_execute_command()[sql_parse.cc:2191] mysqld.exe!mysql_parse()[sql_parse.cc:5735] mysqld.exe!dispatch_command()[sql_parse.cc:1024] mysqld.exe!do_command()[sql_parse.cc:710] mysqld.exe!do_handle_one_connection()[sql_connect.cc:1174] mysqld.exe!handle_one_connection()[sql_connect.cc:1113] mysqld.exe!pfs_spawn_thread()[pfs.cc:1011] mysqld.exe!pthread_start()[my_winthread.c:61] mysqld.exe!_callthreadstartex()[threadex.c:348] mysqld.exe!_threadstartex()[threadex.c:331] How to repeat: #on debug build run: set sql_mode=''; drop table if exists `t1`; create table `t1`(`a` set('a') not null,`b` int)engine=myisam; insert into `t1` values (),(); select coalesce(`t1`.`a`)=coalesce(`t1`.`b`) from `t1`;