Re: [boost] UBSan question

Subject: Re: [boost] UBSan question
From: Raffi Enficiaud (raffi.enficiaud_at_[hidden])
Date: 2019-01-25 19:13:47

On 25.01.19 20:08, Peter Dimov via Boost wrote:
> 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?
> 

Yes. Do I need to change that?

Thanks,
Raffi