No luck so far on fixing those missing symbols.
“dnf debuginfo-install sssd” does not seem to fix the broken stacks.
“dnf --enablerepo=\*debuginfo upgrade” Is not possible currently, as performing a dnf
upgrade on Fedora 25 causes it to boot to a black screen, and I don't have the time or
the energy to troubleshoot issues with X/Wayland/gdm at the moment.
I must say it is a bit strange how unstable Fedora is, Arch and Gentoo -unstable are
remarkably more stable than Fedora in my experience.
Regarding the flame graph creation I just did the following:
git clone https://github.com/brendangregg/FlameGraph
perf record -F 99 -p $(pidof sssd_be) -g -- sleep 90
perf script | ./stackcollapse-perf.pl > out1.perf-folded
./flamegraph.pl out1.perf-folded > perf-sssd1.svg