Customer was running 5.6.19-25.6 RPMs and resolved this dump from a crash. Could not find any similar bug reports, there are no core file unfortunately.
This crash happens while processing an UPDATE statement. Can you find out if there was simultaneous ALTER TABLE processing on the same table?
Unfortunately, the customer cannot tell if there was an ALTER, I guess the best path is to update to 5.6.20 and see if this happens again without a test case for now.
Here is another crash which clearly shows an ALTER, we do not have the ALTER statement nor the table though, this is the same PXC 5.6.20 version different server.
We may have a test case for this on i45821 but have to narrow it down based on the SQL file as it has a number of ALTER statements.
@Seppo, let us know if you would like to see that file.
I've a core dump and I resolved it where can I send it ?
Is it still possible to reproduce this with 5.6.21 PXC?
Set to "Incomplete" as per last comment.