.
Thread 2 (Thread 0x7f74d1ab1700 (LWP 1002)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
No locals.
#1  0x00007f74d239dfb9 in ?? () from /usr/lib/xorg/modules/drivers/intel_drv.so
No symbol table info available.
#2  0x00007f74d5afa6aa in start_thread (arg=0x7f74d1ab1700) at pthread_create.c:333
        __res = <optimized out>
        pd = 0x7f74d1ab1700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140139710584576, 5609993757623539258, 0, 140726285732175, 140139710585280, 3, -5534061034210372038, -5534052277493082566}, 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"
#3  0x00007f74d601feed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109
No locals.
.
Thread 1 (Thread 0x7f74d7fee980 (LWP 994)):
#0  0x00007f74d5f4e267 in __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:55
        resultvar = 0
        pid = 994
        selftid = 994
#1  0x00007f74d5f4feca in __GI_abort () at abort.c:89
        save_stage = 2
        act = {__sigaction_handler = {sa_handler = 0x561913190270, sa_sigaction = 0x561913190270}, sa_mask = {__val = {140726285729136, 0, 140139814924064, 0, 0, 0, 0, 0, 0, 0, 0, 0, 140139782530400, 94665697073568, 140726285728912, 0}}, sa_flags = -701630112, sa_restorer = 0x7f74d7fee980}
        sigs = {__val = {32, 0 <repeats 15 times>}}
#2  0x000056191315e08e in OsAbort ()
No symbol table info available.
#3  0x0000561913163b23 in ?? ()
No symbol table info available.
#4  0x000056191316493d in FatalError ()
No symbol table info available.
#5  0x000056191315b9ee in ?? ()
No symbol table info available.
#6  <signal handler called>
No locals.
#7  0x0000561914de2bf0 in ?? ()
No symbol table info available.
#8  0x00007f74d2375db3 in ?? () from /usr/lib/xorg/modules/drivers/intel_drv.so
No symbol table info available.
#9  0x00007f74d237a5a2 in ?? () from /usr/lib/xorg/modules/drivers/intel_drv.so
No symbol table info available.
#10 0x00007f74d23e53ef in ?? () from /usr/lib/xorg/modules/drivers/intel_drv.so
No symbol table info available.
#11 0x00007f74d23f469f in ?? () from /usr/lib/xorg/modules/drivers/intel_drv.so
No symbol table info available.
#12 0x0000561913128bcc in ?? ()
No symbol table info available.
#13 0x00005619131292ee in DRI2CopyRegion ()
No symbol table info available.
#14 0x000056191312b6c3 in ?? ()
No symbol table info available.
#15 0x0000561912ffb18f in ?? ()
No symbol table info available.
#16 0x0000561912fff34b in ?? ()
No symbol table info available.
#17 0x00007f74d5f39a40 in __libc_start_main (main=0x561912fe9690, argc=11, argv=0x7ffd64458de8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffd64458dd8) at libc-start.c:289
        result = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {0, -2168318618447686086, 94665692845728, 140726285733344, 0, 0, -5611349816829323718, -5534052586442762694}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x561913168860 <__libc_csu_init>, 0x7ffd64458de8}, data = {prev = 0x0, cleanup = 0x0, canceltype = 320243808}}}
        not_first_call = <optimized out>
#18 0x0000561912fe96c9 in _start ()
No symbol table info available.