# MATLAB to Kdb Segmentation Fault **URL:** \ **Category:** Community Support\ **Tags:** kdb-and-q\ **Created:** [February 25, 2015, 4:56pm UTC](https://forum.kx.com/t/matlab-to-kdb-segmentation-fault/9524 "2015-02-25T16:56:00Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![A\_L\_V](https://avatars.discourse-cdn.com/v4/letter/a/f4b2a3/32.png) [@A\_L\_V](https://forum.kx.com/u/A_L_V)\ **Post date:** [February 25, 2015, 4:56pm UTC](https://forum.kx.com/t/matlab-to-kdb-segmentation-fault/9524/1 "2015-02-25T16:56:00Z")
The error appears sporadically, whilst loading \*.mat files into the database; could have loaded 500 GB of data, could have just 100 MB: Error using kx/exec (line 69) Java exception occurred: java.net.SocketException: Connection reset     at java.net.SocketOutputStream.socketWrite(Unknown Source)     at java.net.SocketOutputStream.write(Unknown Source)     at c.w(c.java:547)     at c.ks(c.java:551) On the Kdb end I get: Sorry, this application or an associated library has encountered a fatal error and will exit. If known, please email the steps to reproduce this error to [tech@kx.com](mailto:tech@kx.com) with a copy of the kdb+ startup banner. Thank you. Segmentation fault How do I get rid of this error? \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_ KDB+ 3.2 2015.01.20 Copyright (C) 1993-2015 Kx Systems l32/ 48()core 386759MB  \< M A T L A B (R) \> Copyright 1984-2014 The MathWorks, Inc. R2014a (8.3.0.532) 64-bit (glnxa64) February 11, 2014 ---
**Author:** ![charlie1](https://avatars.discourse-cdn.com/v4/letter/c/ec9cab/32.png) [@charlie1](https://forum.kx.com/u/charlie1)\ **Post date:** [February 25, 2015, 8:52pm UTC](https://forum.kx.com/t/matlab-to-kdb-segmentation-fault/9524/2 "2015-02-25T20:52:00Z")
was there any further info printed? e.g. stack trace? was a core dump produced? If so, can you load it into gdb and get the backtrace? do you have multiple kdb+ processes writing/reading the same hdb area? best case is for you to find the steps to reproduce it and let us know them.