also occurs when I issue `aptitude safe-upgrade` f.e. similar backtrace: > Thread 1 "aptitude" received signal SIGABRT, Aborted. > 0xf7792c89 in __kernel_vsyscall () > @gdb> bt > #0 0xf7792c89 in __kernel_vsyscall () > #1 0xf6d00dc0 in __libc_signal_restore_set (set=0xffacdd20) at > ../sysdeps/unix/sysv/linux/nptl-signals.h:79 > #2 __GI_raise (sig=6) at ../sysdeps/unix/sysv/linux/raise.c:55 > #3 0xf6d02287 in __GI_abort () at abort.c:89 > #4 0x5677f369 in subsumes (d2=..., d1=...) at > ../../../../src/generic/apt/apt.cc:1182 > #5 or_group_subsumes (d1=..., d2=..., cache=<optimized out>) at > ../../../../src/generic/apt/apt.cc:1205 > #6 0x56781062 in internal_is_interesting_dep (cache=0x57bb5238, d=...) at > ../../../../src/generic/apt/apt.cc:1303 > #7 is_interesting_dep (d=..., cache=0x57bb5238) at > ../../../../src/generic/apt/apt.cc:1344 > #8 0x567a48c5 in aptitude_resolver_version::dep_iterator::applicable > (dep=..., prv=..., prv_open=false, cache=0x57bb5238) at > ../../../../src/generic/apt/aptitude_resolver_universe.cc:283 > #9 0x5679dd3a in aptitude_resolver_version::dep_iterator::applicable > (this=0xfface368) at > ../../../../src/generic/apt/aptitude_resolver_universe.cc:302 > #10 0x5679de19 in aptitude_resolver_version::dep_iterator::normalize > (this=0xfface368) at > ../../../../src/generic/apt/aptitude_resolver_universe.cc:317 > #11 0x5679f0f5 in aptitude_resolver_version::dep_iterator::operator++ > (this=0xfface368) at > ../../../../src/generic/apt/aptitude_resolver_universe.cc:529 > #12 0x5688eb77 in aptitude_universe::dep_iterator::operator++ > (this=<optimized out>) at > ../../../../src/generic/apt/aptitude_resolver_universe.h:1246 > #13 generic_problem_resolver<aptitude_universe>::generic_problem_resolver > (this=<optimized out>, _step_score=<optimized out>, _broken_score=<optimized > out>, _unfixed_soft_score=<optimized out>, infinity=<optimized out>, > _full_solution_score=<optimized out>, _unfixed_soft_cost=..., > _future_horizon=<optimized out>, _initial_state=..., _universe=...) at > ../../../../src/generic/problemresolver/problemresolver.h:3782 > #14 0x5687d1ec in aptitude_resolver::aptitude_resolver (this=0x59770ee8, > step_score=-10, broken_score=-100, unfixed_soft_score=-200, infinity=1000000, > resolution_score=50, unfixed_soft_cost=..., future_horizon=50, > _cost_settings=..., initial_installations=..., cache=0x57bb5238, > _policy=0x57bd00a0) at ../../../../src/generic/apt/aptitude_resolver.cc:731 > #15 0x567f7161 in resolver_manager::create_resolver (this=0x59749200) at > ../../../../src/generic/apt/resolver_manager.cc:968 > #16 0x567f9213 in resolver_manager::maybe_create_resolver (this=0x59749200, > consider_policybroken=false) at > ../../../../src/generic/apt/resolver_manager.cc:805 > #17 0x5683794e in resolver_manager::maybe_create_resolver (this=0x59749200) > at ../../../../src/generic/apt/resolver_manager.h:474 > #18 0x566d6d6a in sigc::internal::signal_emit0<void, sigc::nil>::emit > (impl=0x59749448) at /usr/include/sigc++-2.0/sigc++/signal.h:798 > #19 0x56772bf9 in sigc::signal0<void, sigc::nil>::emit (this=0x57bb52fc) at > /usr/include/sigc++-2.0/sigc++/signal.h:2804 > #20 sigc::signal0<void, sigc::nil>::operator() (this=0x57bb52fc) at > /usr/include/sigc++-2.0/sigc++/signal.h:2820 > #21 aptitudeDepCache::end_action_group (this=0x57bb5238, undo=0x0) at > ../../../../src/generic/apt/aptcache.cc:2336 > #22 0x56772fc8 in aptitudeDepCache::action_group::~action_group > (this=0xffaceeb8, __in_chrg=<optimized out>) at > ../../../../src/generic/apt/aptcache.cc:195 > #23 0x567730f2 in aptitudeDepCache::mark_all_upgradable (this=<optimized > out>, with_autoinst=false, ignore_removed=true, undo=<optimized out>) at > ../../../../src/generic/apt/aptcache.cc:645 > #24 0x566f4991 in cmdline_do_action (argc=<optimized out>, argv=0xffacfc08, > status_fname=<optimized out>, simulate=false, assume_yes=false, > download_only=false, fix_broken=false, showvers=false, showdeps=false, > showsize=false, showwhy=false, visual_preview=false, always_prompt=false, > resolver_mode=resolver_mode_safe, safe_resolver_show_actions=false, > no_new_installs=false, no_new_upgrades=false, user_tags=std::vector of length > 0, capacity 0, arch_only=false, queue_only=false, verbose=<optimized out>) at > ../../../src/cmdline/cmdline_do_action.cc:221 > #25 0x565d9d1d in main (argc=<optimized out>, argv=<optimized out>) at > ../../src/main.cc:1278
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