.
Thread 2 (Thread 0xac1aeb40 (LWP 5527)):
#0  0xb4fd9428 in __kernel_vsyscall ()
No symbol table info available.
#1  0xadb02c8b in poll () at ../sysdeps/unix/syscall-template.S:81
No locals.
#2  0xb376cf38 in poll (__timeout=-1, __nfds=2, __fds=0xac1ae008) at /usr/include/i386-linux-gnu/bits/poll2.h:46
No locals.
#3  content::SandboxIPCHandler::Run (this=0xb7d73ea0) at ../../content/browser/renderer_host/sandbox_ipc_linux.cc:91
        r = <optimized out>
        pfds = {{fd = 8, events = 1, revents = 0}, {fd = 7, events = 1, revents = 0}}
        failed_polls = 0
#4  0xaf9e1bc3 in base::DelegateSimpleThread::Run (this=0xb7d74bb8) at ../../base/threading/simple_thread.cc:81
No locals.
#5  0xaf9e1d23 in base::SimpleThread::ThreadMain (this=0xb7d74bb8) at ../../base/threading/simple_thread.cc:60
No locals.
#6  0xaf9ddb9a in base::(anonymous namespace)::ThreadFunc (params=0xbfb021dc) at ../../base/threading/platform_thread_posix.cc:77
        thread_params = <optimized out>
        delegate = 0xb7d74bb8
#7  0xae5a7f70 in start_thread (arg=0xac1aeb40) at pthread_create.c:312
        __res = <optimized out>
        pd = 0xac1aeb40
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {-1369726976, -1407521984, 4001536, -1407524248, 1042692895, -1088740069}, 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"
#8  0xadb11bee in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:129
No locals.
.
Thread 1 (Thread 0xace828c0 (LWP 5519)):
#0  0xb4fd9428 in __kernel_vsyscall ()
No symbol table info available.
#1  0xada54607 in __GI_raise (sig=sig@entry=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:56
        resultvar = <optimized out>
        resultvar = <optimized out>
        pid = -1380122624
        selftid = 5519
#2  0xada57a33 in __GI_abort () at abort.c:89
        save_stage = 2
        act = {__sigaction_handler = {sa_handler = 0xadb00ca4 <write+84>, sa_sigaction = 0xadb00ca4 <write+84>}, sa_mask = {__val = {2913995954, 2913553313, 2, 3084341636, 126, 2913558253, 2914847072, 2914847220, 3084341636, 2913549791, 2914847072, 3084341636, 126, 2914844672, 126, 2914847072, 126, 2913555026, 126, 4294967295, 2916218336, 126, 139, 3215991648, 3215990264, 2913549262, 2914847072, 126, 2900895936, 2913511170, 2914847072, 2914844672}}, sa_flags = -1378748960, sa_restorer = 0xadce433b <std::string::copy(char*, unsigned int, unsigned int) const+75>}
        sigs = {__val = {32, 0 <repeats 31 times>}}
#3  0xaf971ee4 in base::debug::BreakDebugger () at ../../base/debug/debugger_posix.cc:241
No locals.
#4  0xaf99492d in logging::LogMessage::~LogMessage (this=0xbfb0235c, __in_chrg=<optimized out>) at ../../base/logging.cc:639
        str_stack = "[5519:5519:0705/234705:FATAL:zygote_host_impl_linux.cc(182)] Check failed: process.IsValid(). Failed to launch zygote process\n\260\277Pj\352\255\240\037\260\277\252\067\376\264P\037\260\277l\213\304\255X\037\260\277\224\272\377\264\000\000\000\000`V\350\254\005\000\000\000\000\000\000\000\001\000\000\000\230h\352\255\061\061.1.0\000\000\030 \260\277\264\346\254\255xQ\327\267"...
        str_newline = {static npos = <optimized out>, _M_dataplus = {<std::allocator<char>> = {<__gnu_cxx::new_allocator<char>> = {<No data fields>}, <No data fields>}, _M_p = 0xb7d75184 "[5519:5519:0705/234705:FATAL:zygote_host_impl_linux.cc(182)] Check failed: process.IsValid(). Failed to launch zygote process\n"}}
#5  0xb38489a8 in content::ZygoteHostImpl::Init (this=0xb7d74d48, sandbox_cmd=...) at ../../content/browser/zygote_host/zygote_host_impl_linux.cc:182
        fds = {10, 11}
        fds_to_map = {<std::_Vector_base<std::pair<int, int>, std::allocator<std::pair<int, int> > >> = {_M_impl = {<std::allocator<std::pair<int, int> >> = {<__gnu_cxx::new_allocator<std::pair<int, int> >> = {<No data fields>}, <No data fields>}, _M_start = 0xb7d74e28, _M_finish = 0xb7d74e38, _M_end_of_storage = 0xb7d74e38}}, <No data fields>}
        using_namespace_sandbox = <optimized out>
        process = {process_ = 0}
        pickle = {_vptr.Pickle = 0x1, static kPayloadUnit = 64, header_ = 0xfff0bdc0, header_size_ = 2913576556, capacity_after_header_ = 3084340176, write_offset_ = 3215991640}
        chrome_path = {static kSeparators = 0xafa16110 <base::FilePath::kSeparators> "/", static kSeparatorsLength = 2, static kCurrentDirectory = <same as static member of an already seen type>, static kParentDirectory = <same as static member of an already seen type>, static kExtensionSeparator = 46 '.', path_ = {static npos = <optimized out>, _M_dataplus = {<std::allocator<char>> = {<__gnu_cxx::new_allocator<char>> = {<No data fields>}, <No data fields>}, _M_p = 0xb7d73e5c "/usr/lib/chromium-browser/chromium-browser"}}}
        cmd_line = {static current_process_commandline_ = 0xb7d6c5b8, argv_ = {<std::_Vector_base<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::basic_string<char, std::char_traits<char>, std::allocator<char> > > >> = {_M_impl = {<std::allocator<std::basic_string<char, std::char_traits<char>, std::allocator<char> > >> = {<__gnu_cxx::new_allocator<std::basic_string<char, std::char_traits<char>, std::allocator<char> > >> = {<No data fields>}, <No data fields>}, _M_start = 0xb7d74ec8, _M_finish = 0xb7d74ed0, _M_end_of_storage = 0xb7d74ed0}}, <No data fields>}, switches_ = {_M_t = {_M_impl = {<std::allocator<std::_Rb_tree_node<std::pair<std::basic_string<char, std::char_traits<char>, std::allocator<char> > const, std::basic_string<char, std::char_traits<char>, std::allocator<char> > > > >> = {<__gnu_cxx::new_allocator<std::_Rb_tree_node<std::pair<std::basic_string<char, std::char_traits<char>, std::allocator<char> > const, std::basic_string<char, std::char_traits<char>, std::allocator<char> > > > >> = {<No data fields>}, <No data fields>}, _M_key_compare = {<std::binary_function<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::basic_string<char, std::char_traits<char>, std::allocator<char> >, bool>> = {<No data fields>}, <No data fields>}, _M_header = {_M_color = std::_S_red, _M_parent = 0xb7d74e58, _M_left = 0xb7d74e58, _M_right = 0xb7d74e58}, _M_node_count = 1}}}, begin_args_ = 2}
        browser_command_line = <optimized out>
        dummy_fd = {data_ = {<base::internal::ScopedFDCloseTraits> = {<No data fields>}, generic = -1}}
        options = {wait = false, environ = {_M_t = {_M_impl = {<std::allocator<std::_Rb_tree_node<std::pair<std::basic_string<char, std::char_traits<char>, std::allocator<char> > const, std::basic_string<char, std::char_traits<char>, std::allocator<char> > > > >> = {<__gnu_cxx::new_allocator<std::_Rb_tree_node<std::pair<std::basic_string<char, std::char_traits<char>, std::allocator<char> > const, std::basic_string<char, std::char_traits<char>, std::allocator<char> > > > >> = {<No data fields>}, <No data fields>}, _M_key_compare = {<std::binary_function<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::basic_string<char, std::char_traits<char>, std::allocator<char> >, bool>> = {<No data fields>}, <No data fields>}, _M_header = {_M_color = std::_S_red, _M_parent = 0x0, _M_left = 0xbfb02328, _M_right = 0xbfb02328}, _M_node_count = 0}}}, clear_environ = false, fds_to_remap = 0xbfb022d8, maximize_rlimits = 0x0, new_process_group = false, clone_flags = 0, allow_new_privs = false, kill_on_parent_death = false, current_directory = {static kSeparators = 0xafa16110 <base::FilePath::kSeparators> "/", static kSeparatorsLength = 2, static kCurrentDirectory = <same as static member of an already seen type>, static kParentDirectory = <same as static member of an already seen type>, static kExtensionSeparator = 46 '.', path_ = {static npos = <optimized out>, _M_dataplus = {<std::allocator<char>> = {<__gnu_cxx::new_allocator<char>> = {<No data fields>}, <No data fields>}, _M_p = 0xadd1f5ec <std::string::_Rep::_S_empty_rep_storage+12> ""}}}, pre_exec_delegate = 0x0}
        kForwardSwitches = {0xb41ec8a9 <switches::kAllowSandboxDebugging> "allow-sandbox-debugging", 0xb41ec334 <switches::kDisableSeccompFilterSandbox> "disable-seccomp-filter-sandbox", 0xb41ebea6 <switches::kEnableLogging> "enable-logging", 0xb48af64c <switches::kForceDeviceScaleFactor> "force-device-scale-factor", 0xb41eb8e4 <switches::kLoggingLevel> "log-level", 0xb41eb861 <switches::kNoSandbox> "no-sandbox", 0xb41eb7c8 <switches::kPpapiInProcess> "ppapi-in-process", 0xb41eb73d <switches::kRegisterPepperPlugins> "register-pepper-plugins", 0xb420e09b <switches::kV> "v", 0xb420e093 <switches::kVModule> "vmodule"}
        using_suid_sandbox = <optimized out>
        sfd = <optimized out>
#6  0xb34fb4ec in SetupSandbox (parsed_command_line=...) at ../../content/browser/browser_main_loop.cc:178
        trace_event_unique_tracer150 = {p_data_ = 0x0, data_ = {category_group_enabled = 0xaf9b358d <base::malloc(size_t)+29> "\205\300\211\306t\r\203\304\020\211\360[^_\303\215t&", name = 0x18 <error: Cannot access memory at address 0x18>, event_handle = {chunk_seq = 3084337256, chunk_index = 16, event_index = 0}}}
        want_setuid_sandbox = <optimized out>
        trace_event_unique_atomic150 = -1348131483
        trace_event_unique_category_group_enabled150 = <optimized out>
        sandbox_binary = {static kSeparators = 0xafa16110 <base::FilePath::kSeparators> "/", static kSeparatorsLength = 2, static kCurrentDirectory = <same as static member of an already seen type>, static kParentDirectory = <same as static member of an already seen type>, static kExtensionSeparator = 46 '.', path_ = {static npos = <optimized out>, _M_dataplus = {<std::allocator<char>> = {<__gnu_cxx::new_allocator<char>> = {<No data fields>}, <No data fields>}, _M_p = 0xb7d74bf4 "/usr/lib/chromium-browser/chrome-sandbox"}}}
#7  content::BrowserMainLoop::EarlyInitialization (this=0xb7d74ae8) at ../../content/browser/browser_main_loop.cc:396
        trace_event_unique_atomic391 = -1348131483
        trace_event_unique_category_group_enabled391 = <optimized out>
        trace_event_unique_tracer391 = {p_data_ = 0x0, data_ = {category_group_enabled = 0xb7d74090 "\210\342~\267\270\305\326\267", name = 0xadbd0000 "\250\235\032", event_handle = {chunk_seq = 2913584823, chunk_index = 61904, event_index = 44964}}}
#8  0xb34fe14e in content::BrowserMainRunnerImpl::Initialize (this=0xb7d73fa0, parameters=...) at ../../content/browser/browser_main_runner.cc:183
        trace_event_unique_category_group_enabled137 = <optimized out>
        tracking_profile = {scoped_profile_ = {birth_ = 0xb7d73f20, stopwatch_ = {start_time_ = {ms_ = 624901}, wallclock_duration_ms_ = 0, current_thread_data_ = 0xb7d74530, excluded_duration_ms_ = 0, parent_ = 0x0}}}
        trace_event_unique_atomic137 = -1348131483
        trace_event_unique_tracer137 = {p_data_ = 0x0, data_ = {category_group_enabled = 0xb41c5b14 "../../content/browser/browser_main_runner.cc", name = 0x88 <error: Cannot access memory at address 0x88>, event_handle = {chunk_seq = 3008356408, chunk_index = 59076, event_index = 47062}}}
#9  0xb34f7ff8 in content::BrowserMain (parameters=...) at ../../content/browser/browser_main.cc:22
        main_runner = {impl_ = {data_ = {<base::DefaultDeleter<content::BrowserMainRunner>> = {<No data fields>}, ptr = 0xb7d73fa0}}}
        exit_code = <optimized out>
#10 0xb347a5d2 in content::RunNamedProcessTypeMain (process_type=..., main_function_params=..., delegate=0xbfb02718) at ../../content/app/content_main_runner.cc:383
        i = 0
        kMainFunctions = {{name = 0xb41c9a7d "", function = 0xb34f7f50 <content::BrowserMain(content::MainFunctionParams const&)>}, {name = 0xb41eb7ac <switches::kPpapiPluginProcess> "ppapi", function = 0xb3b74070 <content::PpapiPluginMain(content::MainFunctionParams const&)>}, {name = 0xb41eb7ea <switches::kPpapiBrokerProcess> "ppapi-broker", function = 0xb3b73e70 <content::PpapiBrokerMain(content::MainFunctionParams const&)>}, {name = 0xb41eb444 <switches::kUtilityProcess> "utility", function = 0xb3b0eed0 <content::UtilityMain(content::MainFunctionParams const&)>}, {name = 0xb41eb70a <switches::kRendererProcess> "renderer", function = 0xb3aecdf0 <content::RendererMain(content::MainFunctionParams const&)>}, {name = 0xb41eb9fc <switches::kGpuProcess> "gpu-process", function = 0xb3a12690 <content::GpuMain(content::MainFunctionParams const&)>}}
#11 0xb347a67a in content::ContentMainRunnerImpl::Run (this=0xb7d6b978) at ../../content/app/content_main_runner.cc:775
        command_line = @0xb7d6c5b8: {static current_process_commandline_ = 0xb7d6c5b8, argv_ = {<std::_Vector_base<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::basic_string<char, std::char_traits<char>, std::allocator<char> > > >> = {_M_impl = {<std::allocator<std::basic_string<char, std::char_traits<char>, std::allocator<char> > >> = {<__gnu_cxx::new_allocator<std::basic_string<char, std::char_traits<char>, std::allocator<char> > >> = {<No data fields>}, <No data fields>}, _M_start = 0xb7d6c748, _M_finish = 0xb7d6c754, _M_end_of_storage = 0xb7d6c758}}, <No data fields>}, switches_ = {_M_t = {_M_impl = {<std::allocator<std::_Rb_tree_node<std::pair<std::basic_string<char, std::char_traits<char>, std::allocator<char> > const, std::basic_string<char, std::char_traits<char>, std::allocator<char> > > > >> = {<__gnu_cxx::new_allocator<std::_Rb_tree_node<std::pair<std::basic_string<char, std::char_traits<char>, std::allocator<char> > const, std::basic_string<char, std::char_traits<char>, std::allocator<char> > > > >> = {<No data fields>}, <No data fields>}, _M_key_compare = {<std::binary_function<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::basic_string<char, std::char_traits<char>, std::allocator<char> >, bool>> = {<No data fields>}, <No data fields>}, _M_header = {_M_color = std::_S_red, _M_parent = 0xb7d6c800, _M_left = 0xb7d6c800, _M_right = 0xb7d6c800}, _M_node_count = 1}}}, begin_args_ = 2}
        process_type = {static npos = <optimized out>, _M_dataplus = {<std::allocator<char>> = {<__gnu_cxx::new_allocator<char>> = {<No data fields>}, <No data fields>}, _M_p = 0xadd1f5ec <std::string::_Rep::_S_empty_rep_storage+12> ""}}
        main_params = {command_line = @0xb7d6c5b8, zygote_child = false, ui_task = 0x0}
#12 0xb3478df8 in content::ContentMain (params=...) at ../../content/app/content_main.cc:19
        main_runner = {impl_ = {data_ = {<base::DefaultDeleter<content::ContentMainRunner>> = {<No data fields>}, ptr = 0xb7d6b978}}}
        exit_code = -1
#13 0xb520a295 in ChromeMain (argc=3, argv=0xbfb027f4) at ../../chrome/app/chrome_main.cc:66
        chrome_main_delegate = {<content::ContentMainDelegate> = {_vptr.ContentMainDelegate = 0xb77e48a8 <vtable for ChromeMainDelegate+8>}, chrome_content_client_ = {<content::ContentClient> = {_vptr.ContentClient = 0xb77e48e8 <vtable for ChromeContentClient+8>, browser_ = 0xb78ae7c4 <g_chrome_content_browser_client+4>, plugin_ = 0x0, renderer_ = 0x0, utility_ = 0x0}, static kPDFPluginName = 0x0, static kPDFPluginPath = <same as static member of an already seen type>, static kRemotingViewerPluginPath = <same as static member of an already seen type>}}
        params = {delegate = 0xbfb02718, argc = 3, argv = 0xbfb027f4, ui_task = 0x0}
        rv = <optimized out>
#14 0xb520a027 in main (argc=3, argv=0xbfb027f4) at ../../chrome/app/chrome_exe_main_aura.cc:17
No locals.