.
Thread 2 (Thread 0x7f46565e5700 (LWP 4665)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
No locals.
#1  0x00007f4655b79ddb in ?? () from /usr/lib/x86_64-linux-gnu/dri/r300_dri.so
No symbol table info available.
#2  0x00007f4665e37f6e in start_thread (arg=0x7f46565e5700) at pthread_create.c:311
        __res = <optimized out>
        pd = 0x7f46565e5700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139940073461504, -1673071012104652287, 0, 36541504, 139940333885216, 18, 1604586019672275457, 1604623978038671873}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = 0
        pagesize_m1 = <optimized out>
        sp = <optimized out>
        freesize = <optimized out>
        __PRETTY_FUNCTION__ = "start_thread"
#3  0x00007f46670989cd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113
No locals.
.
Thread 1 (Thread 0x7f4668c20740 (LWP 4651)):
#0  0x00007f4666fd4f77 in __GI_raise (sig=sig@entry=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:56
        resultvar = 0
        pid = 4651
        selftid = 4651
#1  0x00007f4666fd85e8 in __GI_abort () at abort.c:90
        save_stage = 2
        act = {__sigaction_handler = {sa_handler = 0x7f466735f740 <main_arena>, sa_sigaction = 0x7f466735f740 <main_arena>}, sa_mask = {__val = {139940356030880, 45, 139940043184848, 139940043184848, 139940352590114, 45, 139940356030880, 45, 139940352592798, 45, 139940356030880, 1, 45, 44029328, 139940352548373, 44029328}}, sa_flags = 0, sa_restorer = 0x2ac9168}
        sigs = {__val = {32, 0 <repeats 15 times>}}
#2  0x00007f46548a76d5 in __gnu_cxx::__verbose_terminate_handler() () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6
No symbol table info available.
#3  0x00007f46548a5856 in ?? () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6
No symbol table info available.
#4  0x00007f46548a5883 in std::terminate() () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6
No symbol table info available.
#5  0x00007f46548a634f in __cxa_pure_virtual () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6
No symbol table info available.
#6  0x00007f464f78a601 in llvm::BumpPtrAllocator::DeallocateSlabs(llvm::MemSlab*) () from /usr/lib/x86_64-linux-gnu/libLLVM-3.3.so.1
No symbol table info available.
#7  0x00007f464ef19882 in ?? () from /usr/lib/x86_64-linux-gnu/libLLVM-3.3.so.1
No symbol table info available.
#8  0x00007f464f2016b6 in llvm::PMDataManager::~PMDataManager() () from /usr/lib/x86_64-linux-gnu/libLLVM-3.3.so.1
No symbol table info available.
#9  0x00007f464f20a2f5 in ?? () from /usr/lib/x86_64-linux-gnu/libLLVM-3.3.so.1
No symbol table info available.
#10 0x00007f464f2019ae in llvm::PMTopLevelManager::~PMTopLevelManager() () from /usr/lib/x86_64-linux-gnu/libLLVM-3.3.so.1
No symbol table info available.
#11 0x00007f464f20a8d9 in ?? () from /usr/lib/x86_64-linux-gnu/libLLVM-3.3.so.1
No symbol table info available.
#12 0x00007f464f2015e1 in llvm::FunctionPassManager::~FunctionPassManager() () from /usr/lib/x86_64-linux-gnu/libLLVM-3.3.so.1
No symbol table info available.
#13 0x00007f464f361a6e in llvm::JIT::removeModule(llvm::Module*) () from /usr/lib/x86_64-linux-gnu/libLLVM-3.3.so.1
No symbol table info available.
#14 0x00007f464f25be12 in LLVMRemoveModule () from /usr/lib/x86_64-linux-gnu/libLLVM-3.3.so.1
No symbol table info available.
#15 0x00007f465509d357 in ?? () from /usr/lib/x86_64-linux-gnu/libgallium.so.0
No symbol table info available.
#16 0x00007f465509d6b9 in gallivm_destroy () from /usr/lib/x86_64-linux-gnu/libgallium.so.0
No symbol table info available.
#17 0x00007f46550b970f in draw_llvm_destroy_variant () from /usr/lib/x86_64-linux-gnu/libgallium.so.0
No symbol table info available.
#18 0x00007f46550b9eef in ?? () from /usr/lib/x86_64-linux-gnu/libgallium.so.0
No symbol table info available.
#19 0x00007f4655b9bb77 in ?? () from /usr/lib/x86_64-linux-gnu/dri/r300_dri.so
No symbol table info available.
#20 0x00007f46550ee573 in ?? () from /usr/lib/x86_64-linux-gnu/libgallium.so.0
No symbol table info available.
#21 0x00007f46550eed55 in st_release_vp_variants () from /usr/lib/x86_64-linux-gnu/libgallium.so.0
No symbol table info available.
#22 0x00007f46550ca095 in ?? () from /usr/lib/x86_64-linux-gnu/libgallium.so.0
No symbol table info available.
#23 0x00007f46557b68be in _mesa_reference_program_ () from /usr/lib/x86_64-linux-gnu/libdricore9.2.2.so.1
No symbol table info available.
#24 0x00007f46557b7f25 in ?? () from /usr/lib/x86_64-linux-gnu/libdricore9.2.2.so.1
No symbol table info available.
#25 0x00007f46557b80bb in _mesa_delete_program_cache () from /usr/lib/x86_64-linux-gnu/libdricore9.2.2.so.1
No symbol table info available.
#26 0x00007f46557b6a6b in _mesa_free_program_data () from /usr/lib/x86_64-linux-gnu/libdricore9.2.2.so.1
No symbol table info available.
#27 0x00007f46555fe18a in _mesa_free_context_data () from /usr/lib/x86_64-linux-gnu/libdricore9.2.2.so.1
No symbol table info available.
#28 0x00007f46550cfa76 in st_destroy_context () from /usr/lib/x86_64-linux-gnu/libgallium.so.0
No symbol table info available.
#29 0x00007f4655b740a8 in dri_destroy_context () from /usr/lib/x86_64-linux-gnu/dri/r300_dri.so
No symbol table info available.
#30 0x00007f4655b70f33 in ?? () from /usr/lib/x86_64-linux-gnu/dri/r300_dri.so
No symbol table info available.
#31 0x00007f46683568af in ?? () from /usr/lib/x86_64-linux-gnu/mesa/libGL.so.1
No symbol table info available.
#32 0x00007f4668330319 in glXDestroyContext () from /usr/lib/x86_64-linux-gnu/mesa/libGL.so.1
No symbol table info available.
#33 0x00007f46687cc252 in ?? () from /usr/lib/x86_64-linux-gnu/libSDL-1.2.so.0
No symbol table info available.
#34 0x00007f46687d008e in ?? () from /usr/lib/x86_64-linux-gnu/libSDL-1.2.so.0
No symbol table info available.
#35 0x00007f46687d0287 in ?? () from /usr/lib/x86_64-linux-gnu/libSDL-1.2.so.0
No symbol table info available.
#36 0x00007f46687c29de in SDL_VideoQuit () from /usr/lib/x86_64-linux-gnu/libSDL-1.2.so.0
No symbol table info available.
#37 0x00007f466879cf75 in SDL_QuitSubSystem () from /usr/lib/x86_64-linux-gnu/libSDL-1.2.so.0
No symbol table info available.
#38 0x00007f466879d01e in SDL_Quit () from /usr/lib/x86_64-linux-gnu/libSDL-1.2.so.0
No symbol table info available.
#39 0x00007f4666fda071 in __run_exit_handlers (status=0, listp=0x7f466735f6a8 <__exit_funcs>, run_list_atexit=run_list_atexit@entry=true) at exit.c:77
        atfct = <optimized out>
        onfct = <optimized out>
        cxafct = <optimized out>
        f = <optimized out>
#40 0x00007f4666fda0f5 in __GI_exit (status=<optimized out>) at exit.c:99
No locals.
#41 0x0000000000490f78 in ?? ()
No symbol table info available.
#42 0x000000000040865d in ?? ()
No symbol table info available.
#43 0x00007f4666fbfde5 in __libc_start_main (main=0x4076c0, argc=2, ubp_av=0x7fff322e67e8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff322e67d8) at libc-start.c:260
        result = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {0, -1673071012104652287, 4217792, 140734035290080, 0, 0, 1672641528006162945, 1604621980932618753}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x516260, 0x7fff322e67e8}, data = {prev = 0x0, cleanup = 0x0, canceltype = 5333600}}}
        not_first_call = <optimized out>
#44 0x0000000000405be9 in ?? ()
No symbol table info available.
#45 0x00007fff322e67d8 in ?? ()
No symbol table info available.
#46 0x000000000000001c in ?? ()
No symbol table info available.
#47 0x0000000000000002 in ?? ()
No symbol table info available.
#48 0x00007fff322e79cc in ?? ()
No symbol table info available.
#49 0x00007fff322e79e3 in ?? ()
No symbol table info available.
#50 0x0000000000000000 in ?? ()
No symbol table info available.