.
Thread 2 (Thread 0x7f14e3df6700 (LWP 2610)):
#0  0x00007f14eb1c6bb7 in epoll_wait (epfd=38, events=0x7f14e3df4f10, maxevents=256, timeout=-1) at ../sysdeps/unix/sysv/linux/epoll_wait.c:30
        resultvar = 18446744073709551612
        sc_cancel_oldtype = 0
        sc_ret = <optimized out>
#1  0x0000561ad591d0d7 in ?? ()
No symbol table info available.
#2  0x0000561ad591a86e in ?? ()
No symbol table info available.
#3  0x00007f14eb49d6db in start_thread (arg=0x7f14e3df6700) at pthread_create.c:463
        pd = 0x7f14e3df6700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139727699142400, -8166552617199996275, 139727699139776, 0, 0, 140731449902944, 8107416212163654285, 8107399870027264653}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
#4  0x00007f14eb1c688f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
No locals.
.
Thread 1 (Thread 0x7f14eddbb600 (LWP 2605)):
#0  __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:51
        set = {__val = {171515968, 0, 0, 0, 0, 0, 94673252238880, 67108868, 139727823603856, 0, 0, 0, 0, 0, 0, 139727862267673}}
        pid = <optimized out>
        tid = <optimized out>
        ret = <optimized out>
#1  0x00007f14eb0e5801 in __GI_abort () at abort.c:79
        save_stage = 1
        act = {__sigaction_handler = {sa_handler = 0x0, sa_sigaction = 0x0}, sa_mask = {__val = {0, 0, 139727862267673, 94673265012784, 94673267736240, 94673258504032, 139727862339854, 94673265012784, 139727862268690, 94673263299568, 0, 94673280529712, 67108868, 139727823603856, 15276455241668550400, 0}}, sa_flags = 1, sa_restorer = 0x7ffe981467f0}
        sigs = {__val = {32, 0 <repeats 15 times>}}
        __cnt = <optimized out>
        __set = <optimized out>
        __cnt = <optimized out>
        __set = <optimized out>
#2  0x0000561ad591f5aa in OsAbort ()
No symbol table info available.
#3  0x0000561ad57f738c in ddxGiveUp ()
No symbol table info available.
#4  0x0000561ad59250a2 in ?? ()
No symbol table info available.
#5  0x0000561ad5925ee5 in FatalError ()
No symbol table info available.
#6  0x0000561ad591c69e in ?? ()
No symbol table info available.
#7  <signal handler called>
No locals.
#8  0x00007f14ec9a2791 in ?? () from /usr/lib/x86_64-linux-gnu/libpixman-1.so.0
No symbol table info available.
#9  0x00007f14ec95bddc in pixman_image_composite32 () from /usr/lib/x86_64-linux-gnu/libpixman-1.so.0
No symbol table info available.
#10 0x00007f14e5209bc8 in wfbComposite () from /usr/lib/xorg/modules/libwfb.so
No symbol table info available.
#11 0x00007f14e66a0d01 in ?? () from /usr/lib/x86_64-linux-gnu/nvidia/xorg/nvidia_drv.so
No symbol table info available.
#12 0x00007ffe00000000 in ?? ()
No symbol table info available.
#13 0x00007ffe00000000 in ?? ()
No symbol table info available.
#14 0x0000008400000336 in ?? ()
No symbol table info available.
#15 0x0000000000000193 in ?? ()
No symbol table info available.
#16 0x000000000000000a in ?? ()
No symbol table info available.
#17 0x000000000000000a in ?? ()
No symbol table info available.
#18 0x00007ffe98147420 in ?? ()
No symbol table info available.
#19 0x0000000aaacedf00 in ?? ()
No symbol table info available.
#20 0x00007ffe98147320 in ?? ()
No symbol table info available.
#21 0x0000000a981472a0 in ?? ()
No symbol table info available.
#22 0x00007ffe98147435 in ?? ()
No symbol table info available.
#23 0x0000561ad5941ea0 in ?? ()
No symbol table info available.
#24 0x00007ffe98147870 in ?? ()
No symbol table info available.
#25 0x0000561ad6541180 in ?? ()
No symbol table info available.
#26 0x03000000000003fa in ?? ()
No symbol table info available.
#27 0x0000561ad5f25b48 in ?? ()
No symbol table info available.
#28 0x0000561ad6783090 in ?? ()
No symbol table info available.
#29 0x00007ffe98147435 in ?? ()
No symbol table info available.
#30 0x00007ffe98147435 in ?? ()
No symbol table info available.
#31 0x0000561ad5f25760 in ?? ()
No symbol table info available.
#32 0x00007ffe98147435 in ?? ()
No symbol table info available.
#33 0xd400df1aaacedf00 in ?? ()
No symbol table info available.
#34 0x0000561ad6783070 in ?? ()
No symbol table info available.
#35 0x0000561ad5eed350 in ?? ()
No symbol table info available.
#36 0x0000561ad5ef8990 in ?? ()
No symbol table info available.
#37 0x0000561ad67830d8 in ?? ()
No symbol table info available.
#38 0x00007ffe98147430 in ?? ()
No symbol table info available.
#39 0x0000561ad5bc75c0 in ?? ()
No symbol table info available.
#40 0x0000000000000001 in ?? ()
No symbol table info available.
#41 0x00000336eb1b0193 in ?? ()
No symbol table info available.
#42 0x0000000000000000 in ?? ()
No symbol table info available.