# Fatal: (SIGSEGV) Bad handle or reference at the definition of coverpoint

**URL:** <https://verificationacademy.com/forums/t/fatal-sigsegv-bad-handle-or-reference-at-the-definition-of-coverpoint/30369>\
**Category:** UVM\
**Tags:** UVM, SIGSEGV, Bad-handle\
**Created:** [February 16, 2015, 8:58am UTC](https://verificationacademy.com/forums/t/fatal-sigsegv-bad-handle-or-reference-at-the-definition-of-coverpoint/30369 "2015-02-16T08:58:08Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![dave\_59](https://verificationacademy.com/forums/user_avatar/verificationacademy.com/dave_59/32/4499_2.png) [@dave\_59](https://verificationacademy.com/forums/u/dave_59)\
**Post date:** [February 16, 2015, 9:50pm UTC](https://verificationacademy.com/forums/t/fatal-sigsegv-bad-handle-or-reference-at-the-definition-of-coverpoint/30369/2 "2015-02-16T21:50:14Z")

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This looks like a run time error - there should be more information in the error message, like a call stack trace. Most likely you failed to construct the covergroup before calling sample().

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