.
Thread 4 (Thread 0x7f6ff3fff700 (LWP 2369)):
#0  0x00007f700024583d in poll () from /lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#1  0x00007f700077c33c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#2  0x00007f700077c6c2 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#3  0x00007f7000d7a816 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
No symbol table info available.
#4  0x00007f70007a2b95 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#5  0x00007f700051b66a in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
No symbol table info available.
#6  0x00007f7000250e4d in clone () from /lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
.
Thread 3 (Thread 0x7f6ff8d59700 (LWP 2370)):
#0  0x00007f70005244fd in nanosleep () from /lib/x86_64-linux-gnu/libpthread.so.0
No symbol table info available.
#1  0x00007f70007a4208 in g_usleep () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#2  0x0000000000401a6e in ?? ()
No symbol table info available.
#3  0x00007f70007a2b95 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#4  0x00007f700051b66a in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
No symbol table info available.
#5  0x00007f7000250e4d in clone () from /lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
.
Thread 2 (Thread 0x7f6ffa66e700 (LWP 2368)):
#0  0x00007f700024583d in poll () from /lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#1  0x00007f700077c33c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#2  0x00007f700077c44c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#3  0x00007f700077c489 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#4  0x00007f70007a2b95 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#5  0x00007f700051b66a in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
No symbol table info available.
#6  0x00007f7000250e4d in clone () from /lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
.
Thread 1 (Thread 0x7f7001cb1980 (LWP 2367)):
#0  0x00007f6fffbb8b2c in cairo_image_surface_get_width () from /usr/lib/x86_64-linux-gnu/libcairo.so.2
No symbol table info available.
#1  0x00007f70018a500e in ev_document_misc_surface_rotate_and_scale () from /usr/lib/x86_64-linux-gnu/libatrildocument.so.3
No symbol table info available.
#2  0x00007f6ff9c65b05 in ?? () from /usr/lib/x86_64-linux-gnu/atril/3/backends/libepubdocument.so
No symbol table info available.
#3  0x0000000000401b2a in ?? ()
No symbol table info available.
#4  0x000000000040177c in ?? ()
No symbol table info available.
#5  0x00007f700016aa00 in __libc_start_main () from /lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#6  0x0000000000401939 in ?? ()
No symbol table info available.