#0  0x00007fe0b7c19624 in dri2_destroy_surface (drv=0x7fe098284610, dpy=0x7fe0982836a0, surf=0x7fe098302790) at ../../../src/egl/drivers/dri2/egl_dri2.c:1370
No locals.
#1  0x00007fe0b7c11e85 in eglDestroySurface (dpy=0x7fe0982836a0, surface=<optimized out>) at ../../../src/egl/main/eglapi.c:899
        ret = <optimized out>
        __func__ = "eglDestroySurface"
#2  0x00007fe0b83da9d1 in __base_dtor  (this=0x7fe0982ac998) at ./src/server/graphics/nested/display.cpp:64
No locals.
#3  __base_dtor  (this=0x7fe0982ac930) at ./src/server/graphics/nested/display_buffer.cpp:94
No locals.
#4  0x00007fe0b83b3149 in _M_release (this=0x7fe0982ac920) at /usr/include/c++/6/bits/shared_ptr_base.h:150
        this = 0x7fe0982ac920
#5  __base_dtor () at /usr/include/c++/6/bits/shared_ptr_base.h:662
        this = <optimized out>
#6  __base_dtor () at /usr/include/c++/6/bits/shared_ptr_base.h:928
        this = <optimized out>
#7  __base_dtor () at /usr/include/c++/6/bits/shared_ptr.h:93
        this = <optimized out>
#8  mir::graphics::nested::detail::DisplaySyncGroup::__base_dtor () at ./src/server/graphics/nested/display.h:94
No locals.
#9  0x00007fe0b83d0729 in _M_release (this=0x7fe0983044f0) at /usr/include/c++/6/bits/shared_ptr_base.h:150
        this = 0x7fe0983044f0
#10 __base_dtor  () at /usr/include/c++/6/bits/shared_ptr_base.h:662
No locals.
#11 __base_dtor  () at /usr/include/c++/6/bits/shared_ptr_base.h:928
No locals.
#12 __base_dtor  () at /usr/include/c++/6/bits/shared_ptr.h:93
No locals.
#13 __base_dtor  () at /usr/include/c++/6/bits/stl_pair.h:147
No locals.
#14 destroy () at /usr/include/c++/6/ext/new_allocator.h:124
        this = <synthetic pointer>
#15 destroy () at /usr/include/c++/6/bits/alloc_traits.h:467
        __a = <synthetic pointer>
#16 std::__detail::_Hashtable_alloc<std::allocator<std::__detail::_Hash_node<std::pair<mir::IntWrapper<mir::frontend::detail::SessionsBufferStreamIdTag, int> const, std::shared_ptr<mir::frontend::ClientBufferTracker> >, true> > >::_M_deallocate_node(std::__detail::_Hash_node<std::pair<mir::IntWrapper<mir::frontend::detail::SessionsBufferStreamIdTag, int> const, std::shared_ptr<mir::frontend::ClientBufferTracker> >, true>*) [clone .isra.503] [clone .lto_priv.981] (__n=0x7fe0982842f0) at /usr/include/c++/6/bits/hashtable_policy.h:1971
No locals.
#17 0x00007fe0b83b45a8 in _M_deallocate_nodes () at /usr/include/c++/6/bits/hashtable_policy.h:1984
No locals.
#18 clear (this=0x7fe098283628) at /usr/include/c++/6/bits/hashtable.h:1901
No locals.
#19 std::_Hashtable<mir::IntWrapper<mir::frontend::detail::SessionsBufferStreamIdTag, int>, std::pair<mir::IntWrapper<mir::frontend::detail::SessionsBufferStreamIdTag, int> const, std::shared_ptr<mir::frontend::ClientBufferTracker> >, std::allocator<std::pair<mir::IntWrapper<mir::frontend::detail::SessionsBufferStreamIdTag, int> const, std::shared_ptr<mir::frontend::ClientBufferTracker> > >, std::__detail::_Select1st, std::equal_to<mir::IntWrapper<mir::frontend::detail::SessionsBufferStreamIdTag, int> >, std::hash<mir::IntWrapper<mir::frontend::detail::SessionsBufferStreamIdTag, int> >, std::__detail::_Mod_range_hashing, std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy, std::__detail::_Hashtable_traits<true, false, true> >::~_Hashtable() [clone .lto_priv.1300] (this=0x7fe098283628) at /usr/include/c++/6/bits/hashtable.h:1227
No locals.
#20 0x00007fe0b83b4b51 in __base_dtor () at /usr/include/c++/6/bits/unordered_map.h:98
        this = 0x7fe098283628
#21 mir::graphics::nested::Display::__base_dtor (this=0x7fe0982835a0) at ./src/server/graphics/nested/display.cpp:204
No locals.
#22 0x00007fe0b831f16a in std::_Sp_counted_base<(__gnu_cxx::_Lock_policy)2>::_M_release() [clone .part.14] [clone .lto_priv.687] (this=0x7fe098283590) at /usr/include/c++/6/bits/shared_ptr_base.h:150
No locals.
#23 0x00007fe0b831fcf1 in __base_dtor  () at /usr/include/c++/6/bits/shared_ptr_base.h:662
No locals.
#24 __base_dtor  () at /usr/include/c++/6/bits/shared_ptr_base.h:928
No locals.
#25 __base_dtor  () at /usr/include/c++/6/bits/shared_ptr.h:93
No locals.
#26 __base_dtor  (this=0x7fe098003fb0) at ./src/server/display_server.cpp:44
No locals.
#27 __base_dtor  (this=<optimized out>) at ./src/server/display_server.cpp:200
No locals.
#28 0x00007fe0b83257a3 in mir::run_mir(mir::ServerConfiguration&, std::function<void (mir::DisplayServer&)>, std::function<void (int)> const&) (config=..., init=..., terminator=...) at ./src/server/run_mir.cpp:98
        server_ptr = 0x7fe0af9ebba0
        main_loop = {<No data fields>}
        fatal_error_strategy = {old_fatal_error_handler = 0x7fe0b6c4a5a0 <mir::fatal_error_abort(char const*, ...)>}
        server = {p = {_M_b = {_M_p = 0x7fe098003fb0}}}
        concurrent_calls = {<No data fields>}
        raii = {deleter = {<No data fields>}, owner = true}
#29 0x00007fe0b8333186 in mir::Server::run() (this=0x5614bb1f7150) at ./src/server/server.cpp:453
        emergency_cleanup = {<No data fields>}
        composite_event_filter = {<No data fields>}
#30 0x00007fe0b869d33d in MirServerThread::run (this=0x5614bb204370) at ./src/platforms/mirserver/qmirserver_p.cpp:42
        main_loop = {<std::__shared_ptr<mir::MainLoop, (__gnu_cxx::_Lock_policy)2>> = {_M_ptr = 0x7fe0980031a0, _M_refcount = {_M_pi = 0x7fe098003190}}, <No data fields>}
#31 0x00007fe0c1197c68 in QThreadPrivate::start(void*) () from /tmp/apport_sandbox_A0tvSH/usr/lib/x86_64-linux-gnu/libQt5Core.so.5
No symbol table info available.
#32 0x00007fe0c056d70a in start_thread (arg=0x7fe0af9ec700) at pthread_create.c:333
        __res = <optimized out>
        pd = 0x7fe0af9ec700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140602995820288, -4168635170167095700, 1, 140736308296767, 140602995820992, 140602995820288, 4172399629490290284, 4172453987496722028}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
        pagesize_m1 = <optimized out>
        sp = <optimized out>
        freesize = <optimized out>
        __PRETTY_FUNCTION__ = "start_thread"
#33 0x00007fe0c088c0ff in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105
No locals.