вс, 19 янв. 2020 г. в 14:09, Willy Tarreau <[email protected]>: > On Sun, Jan 19, 2020 at 12:38:43PM +0500, ???? ??????? wrote: > > > > how noisy is ubsan ? should we add it to CI ? > > > > > > > > > > No idea. I created a dedicated test executable and copied over the > > > implementation to avoid needing to configure HAProxy to use DNS for the > > > verification of my patch. > > > > > > In short: Simply try for yourself, please :-) > > > > > > > it's bloody murder > > > > https://travis-ci.com/chipitsine/haproxy/jobs/277286655 > > Thanks for the test. This report is not much encouraging considering > that it shows the test confuses pointer calculations and pointer > dereferences. Indeed, I've checked them all and they're all the > byproduct of calling LIST_ELEM to retrieve a list element from the > list's pointer, which is done by subtracting an offset from this > pointer. There is absolutely no memory access done there. Thus I > guess this rules out any hope to use this in automated tests :-) >
ubsan actually includes several sanitizers. I'll try them one by one. > > Willy >
