Hi,

Indeed. This strongly suggests that some memory corruption, or access of
uninitialised memory, is happening.

Did you manage to repeat it with Valgrind? If the problem is memory
corruption, it is really hard to tell the origin of the problem from the
information given here - the real problem could be in a completely different
part of the code...

Yes, I did run using valgrind, while it reported some uninitialized variables, not really any memory corruptions. Attached, the log from node0. Similarly, debug=+d did not help. Where I should add some output to narrow down the place where the corruption happens.

R: Jan

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Jan Lindström
Principal Engineer

MariaDB | MaxScale | skype: jan_p_lindstrom