#0  0x0000557fc54e920e in partition_alloc::DiscardSystemPages(unsigned long, unsigned long) ()
#1  0x0000557fc54eed9e in partition_alloc::PartitionRoot<true>::PurgeMemory(int) ()
#2  0x0000557fc54e8f9c in partition_alloc::MemoryReclaimer::ReclaimNormal() ()
#3  0x0000557fc53f957e in base::allocator::(anonymous namespace)::RunMemoryReclaimer(scoped_refptr<base::SequencedTaskRunner>) ()
#4  0x0000557fc538d0db in base::TaskAnnotator::RunTaskImpl(base::PendingTask&) ()
#5  0x0000557fc53a96c9 in base::sequence_manager::internal::ThreadControllerWithMessagePumpImpl::DoWorkImpl(base::LazyNow*) ()
#6  0x0000557fc53a9f32 in non-virtual thunk to base::sequence_manager::internal::ThreadControllerWithMessagePumpImpl::DoWork() ()
#7  0x0000557fc535488f in base::(anonymous namespace)::WorkSourceDispatch(_GSource*, int (*)(void*), void*) ()
#8  0x00007f7791b2387b in g_main_dispatch (context=0x8) at ../glib/glib/gmain.c:3454
        dispatch = 0xfffffffffffff000
        prev_source = 0x0
        begin_time_nsec = 1460394642661
        was_in_call = 0
        user_data = 0x0
        callback = 0x0
        cb_funcs = 0x354001201180
        cb_data = 0x0
        need_destroy = <optimized out>
        source = 0x557fc970fdf0 <(anonymous namespace)::g_root+1776>
        current = 0x354000ef7620
        i = 19070976
#9  g_main_context_dispatch (context=0x8) at ../glib/glib/gmain.c:4172
#10 0x00007f7791b7ac89 in g_main_context_iterate.constprop.0 (context=0x354000241080, block=1, dispatch=1, self=<optimized out>) at ../glib/glib/gmain.c:4248
        max_priority = 2147483647
        timeout = 186
        some_ready = 1
        nfds = 4
        allocated_nfds = <optimized out>
        fds = <optimized out>
        begin_time_nsec = 1460207969786
#11 0x00007f7791b22132 in g_main_context_iteration (context=0x354000241080, may_block=1) at ../glib/glib/gmain.c:4313
        retval = <optimized out>
#12 0x0000557fc535452c in base::MessagePumpGlib::Run(base::MessagePump::Delegate*) ()
#13 0x0000557fc53aa6be in base::sequence_manager::internal::ThreadControllerWithMessagePumpImpl::Run(bool, base::TimeDelta) ()
#14 0x0000557fc53719ba in base::RunLoop::Run(base::Location const&) ()
#15 0x0000557fc43473ee in content::BrowserMainLoop::RunMainMessageLoop() ()
#16 0x0000557fc4349583 in content::BrowserMainRunnerImpl::Run() ()
#17 0x0000557fc434480e in content::BrowserMain(content::MainFunctionParams) ()
#18 0x0000557fc23fa4f3 in content::RunBrowserProcessMain(content::MainFunctionParams, content::ContentMainDelegate*) ()
#19 0x0000557fc23fb9ba in content::ContentMainRunnerImpl::RunBrowser(content::MainFunctionParams, bool) ()
#20 0x0000557fc23fb76a in content::ContentMainRunnerImpl::Run() ()
#21 0x0000557fc23f8422 in content::RunContentProcess(content::ContentMainParams, content::ContentMainRunner*) ()
#22 0x0000557fc23f8b75 in content::ContentMain(content::ContentMainParams) ()
#23 0x0000557fc2120b83 in main ()