. Thread 2 (Thread 0x7f9511a0d700 (LWP 11903)): #0 0x00007f95220b664b in futex_reltimed_wait_cancelable (private=, reltime=0x7f9511a0c890, expected=0, futex_word=0x7f9511a0c9f0) at ../sysdeps/unix/sysv/linux/futex-internal.h:142 __ret = -516 oldtype = 0 err = rt = {tv_sec = 9, tv_nsec = 999991891} spin = 0 buffer = {__routine = 0x7f95220b5e00 <__condvar_cleanup_waiting>, __arg = 0x7f9511a0c8c0, __canceltype = 295749936, __prev = 0x0} cbuffer = {wseq = 0, cond = 0x7f9511a0c9c8, mutex = 0x7f9511a0c9a0, private = 0} err = g = 0 flags = maxspin = 0 signals = 0 result = 0 seq = 0 #1 0x00007f95220b664b in __pthread_cond_wait_common (abstime=0x7f9511a0c940, mutex=0x7f9511a0c9a0, cond=0x7f9511a0c9c8) at pthread_cond_wait.c:533 rt = {tv_sec = 9, tv_nsec = 999991891} spin = 0 buffer = {__routine = 0x7f95220b5e00 <__condvar_cleanup_waiting>, __arg = 0x7f9511a0c8c0, __canceltype = 295749936, __prev = 0x0} cbuffer = {wseq = 0, cond = 0x7f9511a0c9c8, mutex = 0x7f9511a0c9a0, private = 0} err = g = 0 flags = maxspin = 0 signals = 0 result = 0 seq = 0 #2 0x00007f95220b664b in __pthread_cond_timedwait (cond=0x7f9511a0c9c8, mutex=0x7f9511a0c9a0, abstime=0x7f9511a0c940) at pthread_cond_wait.c:667 #3 0x0000559a8bee0d22 in () #4 0x0000559a8be9998b in () #5 0x0000559a8be69323 in () #6 0x0000559a8be8915e in () #7 0x0000559a8beaf319 in () #8 0x0000559a8bea9e43 in () #9 0x00007f95220af7fc in start_thread (arg=0x7f9511a0d700) at pthread_create.c:465 pd = 0x7f9511a0d700 now = unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140278222608128, -4747145170640680303, 140722369399422, 140722369399423, 140278222608128, 140278222608832, 4698630862204324497, 4698526046092282513}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}} not_first_call = pagesize_m1 = sp = freesize = __PRETTY_FUNCTION__ = "start_thread" #10 0x00007f9521755b0f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 . Thread 1 (Thread 0x7f952248a500 (LWP 11901)): #0 0x00007f9510e4d6f7 in () at /usr/lib/chromium-browser/swiftshader/libGLESv2.so #1 0x00007f95222d7a6a in call_init (l=, argc=argc@entry=11, argv=argv@entry=0x7ffc7ad71ab8, env=env@entry=0x7ffc7ad71b18) at dl-init.c:72 j = jm = addrs = init_array = #2 0x00007f95222d7b7b in call_init (env=0x7ffc7ad71b18, argv=0x7ffc7ad71ab8, argc=11, l=) at dl-init.c:30 preinit_array = preinit_array_size = i = 0 #3 0x00007f95222d7b7b in _dl_init (main_map=main_map@entry=0x559a93542e40, argc=11, argv=0x7ffc7ad71ab8, env=0x7ffc7ad71b18) at dl-init.c:120 preinit_array = preinit_array_size = i = 0 #4 0x00007f95222dcb86 in dl_open_worker (a=a@entry=0x7ffc7ad70540) at dl-open.c:575 args = 0x7ffc7ad70540 file = mode = call_map = dst = new = __PRETTY_FUNCTION__ = "dl_open_worker" r = reloc_mode = nmaps = l = maps = relocation_in_progress = any_tls = first_static_tls = #5 0x00007f9521799d64 in __GI__dl_catch_error (objname=objname@entry=0x7ffc7ad70530, errstring=errstring@entry=0x7ffc7ad70538, mallocedp=mallocedp@entry=0x7ffc7ad7052f, operate=operate@entry=0x7f95222dc7a0 , args=args@entry=0x7ffc7ad70540) at dl-error-skeleton.c:198 errcode = 21914 c = {objname = 0x7ffc7ad70530, errstring = 0x7ffc7ad70538, malloced = 0x7ffc7ad7052f, errcode = 0x7ffc7ad7040c, env = {{__jmpbuf = {140722369398320, 4748541339216398993, 2147483649, 94122384898416, 94122260550277, 140278502453312, 4748541339017169553, 4698523717467261585}, __mask_was_saved = 0, __saved_mask = {__val = {140722369399392, 140720308486144, 0, 140722369401225, 0, 140722369401225, 206158430232, 140722369399920, 140722369399728, 94124208291838, 508932034836534528, 140722369398032, 140720308486243, 255, 4096, 0}}}}} old = #6 0x00007f95222dc0d9 in _dl_open (file=0x559a93513970 "/usr/lib/chromium-browser/swiftshader/libGLESv2.so", mode=-2147483647, caller_dlopen=0x559a8be7d285, nsid=-2, argc=, argv=, env=0x7ffc7ad71b18) at dl-open.c:660 args = {file = 0x559a93513970 "/usr/lib/chromium-browser/swiftshader/libGLESv2.so", mode = -2147483647, caller_dlopen = 0x559a8be7d285, caller_dl_open = 0x7f9520ed0ff6 , map = 0x559a93542e40, nsid = 0, argc = 11, argv = 0x7ffc7ad71ab8, env = 0x7ffc7ad71b18} objname = 0x8 errstring = 0x1 malloced = false errcode = __PRETTY_FUNCTION__ = "_dl_open" #7 0x00007f9520ed0ff6 in dlopen_doit (a=a@entry=0x7ffc7ad70750) at dlopen.c:66 args = 0x7ffc7ad70750 #8 0x00007f9521799d64 in __GI__dl_catch_error (objname=objname@entry=0x559a934e5d90, errstring=errstring@entry=0x559a934e5d98, mallocedp=mallocedp@entry=0x559a934e5d88, operate=operate@entry=0x7f9520ed0fa0 , args=args@entry=0x7ffc7ad70750) at dl-error-skeleton.c:198 errcode = 32661 c = {objname = 0x559a934e5d90, errstring = 0x559a934e5d98, malloced = 0x559a934e5d88, errcode = 0x7ffc7ad7062c, env = {{__jmpbuf = {0, 4698522442350480017, 140722369398608, 140722369403056, 140722369398768, 0, 4748541339214301841, 4698523717467261585}, __mask_was_saved = 0, __saved_mask = {__val = {94122384711040, 140278479261600, 140722369398608, 140722369403056, 140722369398768, 0, 140278487647230, 140722369398768, 140278487076424, 140722369398548, 140722369398752, 94122384714128, 508932034836534528, 106, 94122384711040, 140278479261600}}}}} old = #9 0x00007f9520ed1759 in _dlerror_run (operate=operate@entry=0x7f9520ed0fa0 , args=args@entry=0x7ffc7ad70750) at dlerror.c:163 result = 0x559a934e5d80 #10 0x00007f9520ed1092 in __dlopen (file=, mode=) at dlopen.c:87 args = {file = 0x559a93513970 "/usr/lib/chromium-browser/swiftshader/libGLESv2.so", mode = 1, new = 0x7ffc7ad70848, caller = 0x559a8be7d285} #11 0x0000559a8be7d285 in () #12 0x0000559a8be7d243 in () #13 0x0000559a8c92d239 in () #14 0x0000559a8c9610d0 in () #15 0x0000559a8c9600c7 in () #16 0x0000559a8c95ff34 in () #17 0x0000559a8c95ffd7 in () #18 0x0000559a8c9641cc in () #19 0x0000559a8e4425a2 in WelsGetNoneZeroCount_sse42 () #20 0x0000559a8bb084bd in () #21 0x0000559a8bb112db in () #22 0x0000559a8bb07062 in () #23 0x0000559a8a436f75 in ChromeMain () #24 0x00007f95216621c1 in __libc_start_main (main=0x559a8a436ec0, argc=11, argv=0x7ffc7ad71ab8, init=, fini=, rtld_fini=, stack_end=0x7ffc7ad71aa8) at ../csu/libc-start.c:308 result = unwind_buf = {cancel_jmp_buf = {{jmp_buf = {0, 1525558613704198801, 94122232999344, 140722369403568, 0, 0, 4748541338809551505, 4698523600560474769}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x7ffc7ad71b18, 0x7f95224f0150}, data = {prev = 0x0, cleanup = 0x0, canceltype = 2060917528}}} not_first_call = #25 0x0000559a8a436dda in _start ()