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Subject: Re: [boost] UBSan question
From: Peter Dimov (lists_at_[hidden])
Date: 2019-01-25 19:08:48

Raffi Enficiaud wrote:
> > I have an exception that is failing the tests on clang-6/ubuntu18.04
> > (UBSAN exiting the process), but not on gcc-8/ubuntu18.04 (full log
> > below).
> >
> > UndefinedBehaviorSanitizer:DEADLYSIGNAL
> > ==8303==ERROR: UndefinedBehaviorSanitizer: FPE on unknown address
> >
> > This FPE is happening for instance after reading from a null pointer.
> >
> > I've searched on how to silence/blacklist this, but none of the
> > approaches worked so far, and I am not sure what is provoking this FPE.

Are you setting the environment variable UBSAN_OPTIONS=print_stacktrace=1?

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