Thanks a lot for your analysis Łukasz, I confirm that force-enabling byte alignment on ARM fixes the issue.
This particular rtorrent crash affects my armhf machine (Banana Pro board) since the day I replaced Bananian with Armbian stretch. I reckon this issue as pretty severe as it basically prevents usage of rtorrent with DHT enabled on ARM workstations (which is a common case for torrent seedboxes). Now, after the fix, I'm having rtorrent flawlessly running for already several hours. Before the fix, it was crashing with this "tracker insertion" error within 4-6 minutes after start. Any chance to promote the fix to the upstream? Included is the patch for debian/rules which adds --enable-aligned if target arch is ARM. Oleg
diff -Nru libtorrent-0.13.6/debian/rules libtorrent-0.13.6/debian/rules --- libtorrent-0.13.6/debian/rules 2016-12-22 06:32:11.000000000 +0000 +++ libtorrent-0.13.6/debian/rules 2019-03-29 22:34:15.000000000 +0000 @@ -21,6 +21,12 @@ override_dh_auto_test: endif +# Force byte alignment on ARM. +# Closes https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=864995. +ifeq ($(DEB_TARGET_ARCH_CPU), arm) +CONFOPTS += --enable-aligned +endif + %: dh $@ --with autoreconf --parallel
