Colin,

what version of MySQL you are running and on what OS?

The assertion means there is an attempt to reference a pointer which does
not point to the buffer pool. It might be memory corruption or table
corruption.

If you have updated to new disk drives in Linux, best to check if there are
newer drivers.

Please send me the complete error log so that I can resolve the stack traces
if possible.

Best regards,

Heikki
Innobase Oy

...................
We just brought a database back up after bringing it down for a hardware
upgrade (added hard drives) and after we brought it back up it started
crashing a lot.  The queries that crash it vary.  I realize it might be
simple case of database corruption (the data files are now on a
different physical drive) but I thought I'd post it here in case the
logged messages ring any bells.


Relevant info:

InnoDB: Assertion failure in thread 24601 in file ../include/buf0buf.ic
line 263
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 agaist 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=268431360
record_buffer=1044480
sort_buffer=1048568
max_used_connections=19
max_connections=200
threads_connected=20
It is possible that mysqld could use up to
key_buffer_size + (record_buffer + sort_buffer)*max_connections = 670938
K
bytes of memory
Hope that's ok, if not, decrease some variables in the equation


Any ideas?

- Colin




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