>Description:
>From error.log:

040308  9:34:00  InnoDB: Assertion failure in thread 13835301 in file row0upd.c line 
713
InnoDB: Failing assertion: len == dfield_get_len(dfield)
InnoDB: We intentionally generate a memory trap.
InnoDB: Send a detailed bug report to [EMAIL PROTECTED]
mysqld got signal 11;
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=134217728
read_buffer_size=131072
max_used_connections=76
max_connections=4096
threads_connected=36
It is possible that mysqld could use up to 
key_buffer_size + (read_buffer_size + sort_buffer_size)*max_connections = 655328 K
bytes of memory
Hope that's ok; if not, decrease some variables in the equation.

thd=0x6cac1ad8
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...
Cannot determine thread, fp=0x6c8f3268, backtrace may not be correct.
Stack range sanity check OK, backtrace follows:
0x80d9e30
0x40039f05
0x822cf2b
0x820f1ea
0x821573d
0x8215a19
0x822de00
0x822e9f5
0x822ec02
0x8217b2d
0x8139a1d
0x8110c65
0x80e5c34
0x80e83fa
0x80e3893
0x80e32ed
0x80e2ade
0x40036faf
0x420e790a
New value of fp=(nil) failed sanity check, terminating stack trace!
Please read http://www.mysql.com/doc/en/Using_stack_trace.html and follow instructions 
on how to resolve the stack trace. Resolved
stack trace is much more helpful in diagnosing the problem, so please do 
resolve it
Trying to get some variables.
Some pointers may be invalid and cause the dump to abort...
InnoDB: Thread 13269003 stopped in file ha_innodb.cc line 2843
InnoDB: Thread 13640724 stopped in file ../../innobase/fil/../include/sync0sync.ic 
line 109
thd->query at 0x8820228 = UPDATE nas_kundekort_traveller SET firstname='Xxxx Xxxx 
Xxxxxxxxx', addressline1='Xxxxxxxxx 34', city='Xxxxxxx', lastChanged='2004-03-08 
09:34:00', cpmigProduced=0 WHERE travellerId='x5xx56x3-0x0x-0x34-0003-813x61x80230'
thd->thread_id=13502
The manual page at http://www.mysql.com/doc/en/Crashing.html contains
information that should help you find out what is causing the crash.

Number of processes running now: 23
mysqld process hanging, pid 2416 - killed
040308 09:34:00  mysqld restarted
040308 09:34:00  mysqld ended

040308 09:41:56  mysqld started
040308  9:41:56  InnoDB: Database was not shut down normally.
InnoDB: Starting recovery from log files...
InnoDB: Starting log scan based on checkpoint at
InnoDB: log sequence number 12 929457313
InnoDB: Doing recovery: scanned up to log sequence number 12 930014295
InnoDB: 1 transaction(s) which must be rolled back or cleaned up
InnoDB: in total 1 row operations to undo
InnoDB: Trx id counter is 0 710286080
040308  9:41:56  InnoDB: Starting an apply batch of log records to the database...
InnoDB: Progress in percents: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 
22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 
51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 
80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 
InnoDB: Apply batch completed
InnoDB: Starting rollback of uncommitted transactions
InnoDB: Rolling back trx with id 0 710285796, 1 rows to undo
InnoDB: Rolling back of trx id 0 710285796 completed
InnoDB: Rollback of uncommitted transactions completed
InnoDB: Last MySQL binlog file position 0 11743526, file name 
/var/log/mysql/norwegian/log.2162
040308  9:41:58  InnoDB: Flushing modified pages from the buffer pool...
040308  9:41:58  InnoDB: Started
/usr/local/mysql/bin/mysqld: ready for connections.
Version: '4.0.15-max-log'  socket: '/tmp/norwegian.sock'  port: 3309


Output from:
../resolve_stack_dump  /tmp/mysqld.sym:


0x80d9e30 handle_segfault + 420
0x40039f05 _end + 934967345
0x822cf2b row_upd_build_sec_rec_difference_binary + 451
0x820f1ea row_ins_sec_index_entry_by_modify + 90
0x821573d row_ins_index_entry_low + 1545
0x8215a19 row_ins_index_entry + 65
0x822de00 row_upd_sec_index_entry + 848
0x822e9f5 row_upd + 197
0x822ec02 row_upd_step + 330
0x8217b2d row_update_for_mysql + 777
0x8139a1d update_row__11ha_innobasePCcPc + 589
0x8110c65 
mysql_update__FP3THDP13st_table_listRt4List1Z4ItemT2P4ItemP8st_orderUx15enum_duplicates
 + 2493
0x80e5c34 mysql_execute_command__Fv + 6320
0x80e83fa mysql_parse__FP3THDPcUi + 146
0x80e3893 dispatch_command__F19enum_server_commandP3THDPcUi + 1435
0x80e32ed do_command__FP3THD + 165
0x80e2ade handle_one_connection + 646
0x40036faf _end + 934955227
0x420e790a _end + 969232950


>How-To-Repeat:
Not able to repeat bug, but it has happend two weeks ago
>Fix:
Not known. Mysql works after restart

>Submitter-Id:  <submitter ID>
>Originator:    Jon Thingvold
>Organization:
Basefarm AS
>MySQL support: none
>Synopsis:      Mysql crash
>Severity:      serious
>Priority:      high
>Category:      mysql
>Class:         sw-bug
>Release:       mysql-4.0.15-max (Official MySQL-max binary)

>C compiler:    2.95.3
>C++ compiler:  2.95.3
>Environment:

Redhat Linux 7.3
System: Linux nas-mysql01.osl.basefarm.net 2.4.20-20.7smp #1 SMP Mon Aug 18 14:46:14 
EDT 2003 i686 unknown
Architecture: i686

Some paths:  /local/bin/perl /usr/bin/make /usr/bin/gmake /usr/bin/gcc /usr/bin/cc
GCC: Reading specs from /usr/lib/gcc-lib/i386-redhat-linux/2.96/specs
gcc version 2.96 20000731 (Red Hat Linux 7.3 2.96-113)
Compilation info: CC='gcc'  CFLAGS='-O2 -mpentiumpro -DBIG_TABLES'  CXX='gcc'  
CXXFLAGS='-O2 -mpentiumpro -felide-constructors -DBIG_TABLES'  LDFLAGS=''  ASFLAGS=''
LIBC: 
lrwxrwxrwx    1 root     root           13 Oct 20 08:59 /lib/libc.so.6 -> libc-2.2.5.so
-rwxr-xr-x    1 root     root      1260480 Mar  5  2003 /lib/libc-2.2.5.so
-rw-r--r--    1 root     root      2312442 Mar  5  2003 /usr/lib/libc.a
-rw-r--r--    1 root     root          178 Mar  5  2003 /usr/lib/libc.so
Configure command: ./configure '--prefix=/usr/local/mysql' 
'--localstatedir=/usr/local/mysql/data' '--libexecdir=/usr/local/mysql/bin' 
'--with-comment=Official MySQL-max binary' '--with-extra-charsets=complex' 
'--with-server-suffix=-max' '--enable-thread-safe-client' '--enable-local-infile' 
'--enable-assembler' '--disable-shared' '--with-berkeley-db' '--with-raid' 
'--with-embedded-server' '--with-innodb' 'CFLAGS=-O2 -mpentiumpro -DBIG_TABLES' 
'CXXFLAGS=-O2 -mpentiumpro -felide-constructors -DBIG_TABLES' 'CXX=gcc'


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