.
Thread 2 (Thread 0x7f9511a0d700 (LWP 11903)):
#0  0x00007f95220b664b in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7f9511a0c890, expected=0, futex_word=0x7f9511a0c9f0) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
        __ret = -516
        oldtype = 0
        err = <optimized out>
#1  __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 = <optimized out>
        g = 0
        flags = <optimized out>
        maxspin = 0
        signals = 0
        result = 0
        seq = 0
#2  __pthread_cond_timedwait (cond=0x7f9511a0c9c8, mutex=0x7f9511a0c9a0, abstime=0x7f9511a0c940) at pthread_cond_wait.c:667
No locals.
#3  0x0000559a8bee0d22 in base::ConditionVariable::TimedWait(base::TimeDelta const&) () at ../../base/synchronization/condition_variable_posix.cc:117
No locals.
#4  0x0000559a8be9998b in TimedWaitUntil () at ../../base/synchronization/waitable_event_posix.cc:223
No locals.
#5  0x0000559a8be69323 in Run () at ../../base/message_loop/message_pump_default.cc:59
No locals.
#6  0x0000559a8be8915e in Run () at ../../base/run_loop.cc:123
No locals.
#7  0x0000559a8beaf319 in ThreadMain () at ../../base/threading/thread.cc:338
No locals.
#8  0x0000559a8bea9e43 in ThreadFunc () at ../../base/threading/platform_thread_posix.cc:75
No locals.
#9  0x00007f95220af7fc in start_thread (arg=0x7f9511a0d700) at pthread_create.c:465
        pd = 0x7f9511a0d700
        now = <optimized out>
        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 = <optimized out>
        pagesize_m1 = <optimized out>
        sp = <optimized out>
        freesize = <optimized out>
        __PRETTY_FUNCTION__ = "start_thread"
#10 0x00007f9521755b0f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
No locals.
.
Thread 1 (Thread 0x7f952248a500 (LWP 11901)):
#0  0x00007f9510e4d6f7 in Constants () at ../../third_party/swiftshader/src/Shader/Constants.cpp:249
No locals.
#1  0x00007f95222d7a6a in call_init (l=<optimized out>, argc=argc@entry=11, argv=argv@entry=0x7ffc7ad71ab8, env=env@entry=0x7ffc7ad71b18) at dl-init.c:72
        j = <optimized out>
        jm = <optimized out>
        addrs = <optimized out>
        init_array = <optimized out>
#2  0x00007f95222d7b7b in call_init (env=0x7ffc7ad71b18, argv=0x7ffc7ad71ab8, argc=11, l=<optimized out>) at dl-init.c:30
No locals.
#3  _dl_init (main_map=main_map@entry=0x559a93542e40, argc=11, argv=0x7ffc7ad71ab8, env=0x7ffc7ad71b18) at dl-init.c:120
        preinit_array = <optimized out>
        preinit_array_size = <optimized out>
        i = 0
#4  0x00007f95222dcb86 in dl_open_worker (a=a@entry=0x7ffc7ad70540) at dl-open.c:575
        args = 0x7ffc7ad70540
        file = <optimized out>
        mode = <optimized out>
        call_map = <optimized out>
        dst = <optimized out>
        new = <optimized out>
        __PRETTY_FUNCTION__ = "dl_open_worker"
        r = <optimized out>
        reloc_mode = <optimized out>
        nmaps = <optimized out>
        l = <optimized out>
        maps = <optimized out>
        relocation_in_progress = <optimized out>
        any_tls = <optimized out>
        first_static_tls = <optimized out>
#5  0x00007f9521799d64 in __GI__dl_catch_error (objname=objname@entry=0x7ffc7ad70530, errstring=errstring@entry=0x7ffc7ad70538, mallocedp=mallocedp@entry=0x7ffc7ad7052f, operate=operate@entry=0x7f95222dc7a0 <dl_open_worker>, 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 = <optimized out>
#6  0x00007f95222dc0d9 in _dl_open (file=0x559a93513970 "/usr/lib/chromium-browser/swiftshader/libGLESv2.so", mode=-2147483647, caller_dlopen=0x559a8be7d285 <LoadNativeLibraryWithOptions()+37>, nsid=-2, argc=<optimized out>, argv=<optimized out>, env=0x7ffc7ad71b18) at dl-open.c:660
        args = {file = 0x559a93513970 "/usr/lib/chromium-browser/swiftshader/libGLESv2.so", mode = -2147483647, caller_dlopen = 0x559a8be7d285 <LoadNativeLibraryWithOptions()+37>, caller_dl_open = 0x7f9520ed0ff6 <dlopen_doit+86>, map = 0x559a93542e40, nsid = 0, argc = 11, argv = 0x7ffc7ad71ab8, env = 0x7ffc7ad71b18}
        objname = 0x8 <error: Cannot access memory at address 0x8>
        errstring = 0x1 <error: Cannot access memory at address 0x1>
        malloced = false
        errcode = <optimized out>
        __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 <dlopen_doit>, 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 = <optimized out>
#9  0x00007f9520ed1759 in _dlerror_run (operate=operate@entry=0x7f9520ed0fa0 <dlopen_doit>, args=args@entry=0x7ffc7ad70750) at dlerror.c:163
        result = 0x559a934e5d80
#10 0x00007f9520ed1092 in __dlopen (file=<optimized out>, mode=<optimized out>) at dlopen.c:87
        args = {file = 0x559a93513970 "/usr/lib/chromium-browser/swiftshader/libGLESv2.so", mode = 1, new = 0x7ffc7ad70848, caller = 0x559a8be7d285 <LoadNativeLibraryWithOptions()+37>}
#11 0x0000559a8be7d285 in LoadNativeLibraryWithOptions () at ../../base/native_library_posix.cc:42
No locals.
#12 0x0000559a8be7d243 in LoadNativeLibrary () at ../../base/native_library.cc:11
No locals.
#13 0x0000559a8c92d239 in LoadLibraryAndPrintError () at ../../ui/gl/gl_implementation.cc:239
No locals.
#14 0x0000559a8c9610d0 in InitializeStaticEGLInternal () at ../../ui/gl/init/gl_initializer_x11.cc:109
No locals.
#15 InitializeStaticGLBindings () at ../../ui/gl/init/gl_initializer_x11.cc:194
No locals.
#16 0x0000559a8c9600c7 in InitializeGLOneOffImplementation () at ../../ui/gl/init/gl_factory.cc:81
No locals.
#17 0x0000559a8c95ff34 in InitializeGLOneOffHelper () at ../../ui/gl/init/gl_factory.cc:58
No locals.
#18 0x0000559a8c95ffd7 in InitializeGLNoExtensionsOneOff () at ../../ui/gl/init/gl_factory.cc:72
No locals.
#19 0x0000559a8c9641cc in InitializeAndStartSandbox () at ../../gpu/ipc/service/gpu_init.cc:204
No locals.
#20 0x0000559a8e4425a2 in GpuMain () at ../../content/gpu/gpu_main.cc:270
No locals.
#21 0x0000559a8bb084bd in Run () at ../../content/app/content_main_runner.cc:709
No locals.
#22 0x0000559a8bb112db in Main () at ../../services/service_manager/embedder/main.cc:469
No locals.
#23 0x0000559a8bb07062 in content::ContentMain(content::ContentMainParams const&) () at ../../content/app/content_main.cc:19
No locals.
#24 0x0000559a8a436f75 in ChromeMain () at ../../chrome/app/chrome_main.cc:122
No locals.
#25 0x00007f95216621c1 in __libc_start_main (main=0x559a8a436ec0 <main>, argc=11, argv=0x7ffc7ad71ab8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffc7ad71aa8) at ../csu/libc-start.c:308
        result = <optimized out>
        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 = <optimized out>
#26 0x0000559a8a436dda in _start ()
No symbol table info available.