.
Thread 2 (Thread 0x7fb76d4bf800 (LWP 951)):
#0  __strcmp_sse2_unaligned () at ../sysdeps/x86_64/multiarch/strcmp-sse2-unaligned.S:33
No locals.
#1  0x00007fb76c159b6f in ?? () from /usr/lib/x86_64-linux-gnu/libcups.so.2
No symbol table info available.
#2  0x00007fb76c15a3a2 in cupsArrayFind () from /usr/lib/x86_64-linux-gnu/libcups.so.2
No symbol table info available.
#3  0x00007fb76c197b17 in _cupsStrFree () from /usr/lib/x86_64-linux-gnu/libcups.so.2
No symbol table info available.
#4  0x00007fb76c17430c in ?? () from /usr/lib/x86_64-linux-gnu/libcups.so.2
No symbol table info available.
#5  0x00007fb76c1741d0 in ippDelete () from /usr/lib/x86_64-linux-gnu/libcups.so.2
No symbol table info available.
#6  0x000055adb8be6d57 in ?? ()
No symbol table info available.
#7  0x000055adb8be7072 in ?? ()
No symbol table info available.
#8  0x000055adb8bb88be in ?? ()
No symbol table info available.
#9  0x00007fb76b8feb97 in __libc_start_main (main=0x55adb8bb72b0, argc=2, argv=0x7fffb5622a18, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffb5622a08) at ../csu/libc-start.c:310
        self = <optimized out>
        __self = <optimized out>
        result = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {0, 948772631880471136, 94204617002848, 140736236497424, 0, 0, 6453284533570179680, 6421871162160517728}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x7fb76d2da733 <_dl_init+259>, 0x7fb76d2c8c48}, data = {prev = 0x0, cleanup = 0x0, canceltype = 1831708467}}}
        not_first_call = <optimized out>
#10 0x000055adb8bb8f8a in ?? ()
No symbol table info available.
.
Thread 1 (Thread 0x7fb7417c2700 (LWP 21291)):
#0  __strcmp_sse2_unaligned () at ../sysdeps/x86_64/multiarch/strcmp-sse2-unaligned.S:32
No locals.
#1  0x00007fb76d0c4879 in ?? () from /usr/lib/x86_64-linux-gnu/libcupsmime.so.1
No symbol table info available.
#2  0x00007fb76c159eef in ?? () from /usr/lib/x86_64-linux-gnu/libcups.so.2
No symbol table info available.
#3  0x00007fb76d0c4d7c in mimeFilter2 () from /usr/lib/x86_64-linux-gnu/libcupsmime.so.1
No symbol table info available.
#4  0x000055adb8be2851 in ?? ()
No symbol table info available.
#5  0x000055adb8bce94a in ?? ()
No symbol table info available.
#6  0x00007fb76bcd56db in start_thread (arg=0x7fb7417c2700) at pthread_create.c:463
        pd = 0x7fb7417c2700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140425054398208, -6453158177420012960, 140425054396160, 0, 94204630005616, 140736236435120, 6421926548617106016, 6421870600464962144}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
#7  0x00007fb76b9fe88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
No locals.