https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71070
--- Comment #2 from Oleksii Oleksenko <alexo_o at ukr dot net> --- Sorry, I guess, I had a wrong configuration. I had the CHKP_RT_BNDPRESERVE variable set to '1', and after I tried setting it to '0', the problem dissipated.