Hey Brian and folks > […] > backtrace, and it turned out to be a non-trivial problem. Instead, we > try simply sorting the VMAs by size, which has the intended effect. > […] > Still need to run rr tests on this, per Kees Cook's suggestion, will > update back once done. GDB and readelf show that this patch works > without issue though. I think in your testing, you probably did not try the eu-stack tool from the elfutils package, because I think I found a bug: Current elfutils cannot symbolize core dumps created by Linux 6.12+. I noticed this because systemd-coredump(8) uses elfutils, and when a program crashed on my machine, syslog did not show function names. I reported this issue with elfutils at: https://sourceware.org/bugzilla/show_bug.cgi?id=32713 …but figured it would be good to give a heads-up here, too. Is this breakage sufficient reason to revert the commit? Or are we saying userspace just needs to be updated to cope? Thanks Best regards Michael
