Status changed to 'Confirmed' because the bug affects multiple users.

** Changed in: chromium-browser (Ubuntu)
       Status: New => Confirmed

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https://bugs.launchpad.net/bugs/1858105

Title:
  chromium-browser hangs on startup without gnome-keyring

Status in chromium-browser package in Ubuntu:
  Confirmed

Bug description:
  Ubuntu 16.04.6 LTS
  chromium-browser 79.0.3945.79-0ubuntu0.16.04. (and some older ones)
  amd64

  Ive used chromium-browser since a while but in the recent months it sometimes 
after exiting cannot be started again, it just hangs with no window opened and 
no meaningful error message.
  First I thought some corrupt profile was the cause as a restore of the 
profile from backup resolves this. But as it kept happening on a 100% stable 
system which runs 24/7 this is unlikely.

  Debugging this was a bit delayed as the -dbg package is outdated the
  -dbgsym package does not work with the gdb version i have from xenial
  and rebuilding chromium-browser strips debug symbols even when
  is_debug is enabled and it takes over 12h for a build.

  Either way, backtraces of the relevant threads are below.
  A workaround of this issue is to install gnome-keyring, start 
chromium-browser, cancel the gazillion of password requests and uninstall 
gnome-keyring and gcr, after that chromium-browser launches normal again.
  Another workaround is to use --single-process (which is a dumb idea security 
wise)
  I do not know why its doing that, i did not investigate further, but this is 
not normal or acceptable behavior of a browser
  even if I did something stupid which no doubt is possible.

  What i expect is well the browser should not hang and not do funny
  things with packages it doesnt have any dependancy/recommand/suggests
  on. And it should not grow tentacles that grab into keyrings without
  explanation to the user.

  info threads 
    Id   Target Id                                           Frame 
  * 1    Thread 0x7ffff7f1dac0 (LWP 23428) "chromium-browse" __lll_lock_wait () 
at ../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:135
    2    Thread 0x7fffe85bd700 (LWP 23433) "sandbox_ipc_thr" 0x00007ffff144074d 
in poll () at ../sysdeps/unix/syscall-template.S:84
    3    Thread 0x7fffe7dbc700 (LWP 23438) "chromium-browse" 0x00007ffff72d7f7b 
in __waitpid (pid=23435, stat_loc=0x7fffe7dbbb04, options=0) at 
../sysdeps/unix/sysv/linux/waitpid.c:29
    4    Thread 0x7fffe6207700 (LWP 23439) "ThreadPoolServi" 0x00007ffff144ca13 
in epoll_wait () at ../sysdeps/unix/syscall-template.S:84
    6    Thread 0x7fffe5205700 (LWP 23441) "Chrome_IOThread" 0x00007ffff144ca13 
in epoll_wait () at ../sysdeps/unix/syscall-template.S:84
    8    Thread 0x7fffcffff700 (LWP 23443) "inotify_reader"  0x00007ffff14425d3 
in select () at ../sysdeps/unix/syscall-template.S:84
    9    Thread 0x7fffcf38f700 (LWP 23444) "gmain"           0x00007ffff144074d 
in poll () at ../sysdeps/unix/syscall-template.S:84
    10   Thread 0x7fffceb8e700 (LWP 23445) "gdbus"           0x00007ffff144074d 
in poll () at ../sysdeps/unix/syscall-template.S:84
    11   Thread 0x7fffce38d700 (LWP 23446) "Bluez D-Bus thr" 0x00007ffff144ca13 
in epoll_wait () at ../sysdeps/unix/syscall-template.S:84
    12   Thread 0x7fffe413d700 (LWP 23447) "CrShutdownDetec" 0x00007ffff72d751d 
in read () at ../sysdeps/unix/syscall-template.S:84
    15   Thread 0x7fffccb8a700 (LWP 23450) "ThreadPoolForeg" 
pthread_cond_timedwait@@GLIBC_2.3.2 () at 
../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:225
    17   Thread 0x7fffabfff700 (LWP 23451) "ThreadPoolForeg" __lll_lock_wait () 
at ../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:135
    18   Thread 0x7fffaaffd700 (LWP 23453) "CompositorTileW" 
pthread_cond_wait@@GLIBC_2.3.2 () at 
../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
    19   Thread 0x7fffaa7fc700 (LWP 23454) "ThreadPoolSingl" 
pthread_cond_wait@@GLIBC_2.3.2 () at 
../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
    20   Thread 0x7fffa9ffb700 (LWP 23455) "VideoCaptureThr" 
pthread_cond_wait@@GLIBC_2.3.2 () at 
../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
    21   Thread 0x7fffa8ff9700 (LWP 23457) "gpu-process_cra" 
pthread_cond_wait@@GLIBC_2.3.2 () at 
../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
    22   Thread 0x7fffa97fa700 (LWP 23456) "CacheThread_Blo" 0x00007ffff144ca13 
in epoll_wait () at ../sysdeps/unix/syscall-template.S:84
    23   Thread 0x7fff87fff700 (LWP 23459) "utility_crash_u" 
pthread_cond_wait@@GLIBC_2.3.2 () at 
../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
    24   Thread 0x7fff877fe700 (LWP 23461) "ThreadPoolSingl" 
pthread_cond_wait@@GLIBC_2.3.2 () at 
../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
    25   Thread 0x7fff86ffd700 (LWP 23463) "Chrome_HistoryT" 
pthread_cond_timedwait@@GLIBC_2.3.2 () at 
../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:225

  bt
  #0  __lll_lock_wait () at ../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:135
  #1  0x00007ffff72d0dbd in __GI___pthread_mutex_lock (mutex=0x55555ef8b1a8 
<(anonymous namespace)::g_cache+40>) at ../nptl/pthread_mutex_lock.c:80
  #2  0x00005555565b734c in Lock () at 
../../base/synchronization/lock_impl_posix.cc:102
  #3  0x000055555a6c1135 in Acquire () at ../../base/synchronization/lock.h:31
  #4  BasicAutoLock () at ../../base/synchronization/lock_impl.h:84
  #5  GetPasswordV11 () at ../../components/os_crypt/os_crypt_linux.cc:97
  #6  0x000055555a6c098d in GetEncryptionKey () at 
../../components/os_crypt/os_crypt_linux.cc:119
  #7  DecryptString () at ../../components/os_crypt/os_crypt_linux.cc:212
  #8  0x000055555b0f86dc in DecryptBase64String () at 
../../components/password_manager/core/browser/hash_password_manager.cc:44
  #9  GetAndDecryptField () at 
../../components/password_manager/core/browser/hash_password_manager.cc:85
  #10 0x000055555b0f887d in ConvertToPasswordHashData () at 
../../components/password_manager/core/browser/hash_password_manager.cc:124
  #11 0x000055555b0fa44c in RetrieveAllPasswordHashes () at 
../../components/password_manager/core/browser/hash_password_manager.cc:258
  #12 0x000055555b0bd8b2 in SchedulePasswordHashUpdate () at 
../../components/password_manager/core/browser/password_store.cc:521
  #13 0x000055555b0bd873 in 
password_manager::PasswordStore::PreparePasswordHashData(std::__1::basic_string<char,
 std::__1::char_traits<char>, std::__1::allocator<char> > const&) ()
      at ../../components/password_manager/core/browser/password_store.cc:435
  #14 0x0000555558d25d5d in BuildServiceInstanceFor () at 
../../chrome/browser/password_manager/password_store_factory.cc:165
  #15 0x000055555ad8e5df in 
RefcountedBrowserContextKeyedServiceFactory::BuildServiceInstanceFor(void*) 
const ()
      at 
../../components/keyed_service/content/refcounted_browser_context_keyed_service_factory.cc:97
  #16 0x0000555559ebae1a in GetServiceForContext () at 
../../components/keyed_service/core/refcounted_keyed_service_factory.cc:76
  #17 0x000055555ad8e54e in 
RefcountedBrowserContextKeyedServiceFactory::GetServiceForBrowserContext(content::BrowserContext*,
 bool) ()
      at 
../../components/keyed_service/content/refcounted_browser_context_keyed_service_factory.cc:58
  #18 0x0000555558d25915 in GetForProfile () at 
../../chrome/browser/password_manager/password_store_factory.cc:84
  #19 0x0000555558f604c8 in ChromeSyncClient () at 
../../chrome/browser/sync/chrome_sync_client.cc:187
  #20 0x0000555558db8598 in make_unique<browser_sync::ChromeSyncClient, 
Profile*&> () at ../../buildtools/third_party/libc++/trunk/include/memory:3131
  #21 BuildServiceInstanceFor () at 
../../chrome/browser/sync/profile_sync_service_factory.cc:188
  #22 0x000055555ad8e395 in BuildServiceInstanceFor () at 
../../components/keyed_service/content/browser_context_keyed_service_factory.cc:98
  #23 0x0000555559eba27b in GetServiceForContext () at 
../../components/keyed_service/core/keyed_service_factory.cc:77
  #24 0x0000555558db82fa in GetForProfile () at 
../../chrome/browser/sync/profile_sync_service_factory.cc:117
  #25 0x0000555558d9e364 in BuildServiceInstanceFor () at 
../../chrome/browser/sharing/sharing_service_factory.cc:64
  #26 0x000055555ad8e395 in BuildServiceInstanceFor () at 
../../components/keyed_service/content/browser_context_keyed_service_factory.cc:98
  #27 0x0000555559eba27b in GetServiceForContext () at 
../../components/keyed_service/core/keyed_service_factory.cc:77
  #28 0x0000555558d79145 in DoFinalInit () at 
../../chrome/browser/profiles/profile_impl.cc:748
  #29 0x0000555558d7aa1f in OnLocaleReady () at 
../../chrome/browser/profiles/profile_impl.cc:986
  #30 0x0000555558d786ce in OnPrefsLoaded () at 
../../chrome/browser/profiles/profile_impl.cc:1016
  #31 0x0000555558d78037 in ProfileImpl () at 
../../chrome/browser/profiles/profile_impl.cc:538
  #32 0x0000555558d76e3b in CreateProfile () at 
../../chrome/browser/profiles/profile_impl.cc:376
  #33 0x0000555558d89346 in CreateProfileHelper () at 
../../chrome/browser/profiles/profile_manager.cc:1162
  #34 0x0000555558d843e3 in CreateAndInitializeProfile () at 
../../chrome/browser/profiles/profile_manager.cc:1397
  #35 0x0000555558d83ec5 in GetProfile () at 
../../chrome/browser/profiles/profile_manager.cc:504
  #36 0x000055555b3c7df5 in GetStartupProfile(base::FilePath const&, 
base::CommandLine const&) () at 
../../chrome/browser/ui/startup/startup_browser_creator.cc:1041
  #37 0x0000555558ffa641 in CreatePrimaryProfile () at 
../../chrome/browser/chrome_browser_main.cc:425
  #38 PreMainMessageLoopRunImpl () at 
../../chrome/browser/chrome_browser_main.cc:1521
  #39 0x0000555558ff9d7d in PreMainMessageLoopRun () at 
../../chrome/browser/chrome_browser_main.cc:1195
  #40 0x000055555735ba5f in PreMainMessageLoopRun () at 
../../content/browser/browser_main_loop.cc:1008
  #41 0x00005555577e4253 in Run () at ../../base/callback.h:98
  #42 RunAllTasksNow () at ../../content/browser/startup_task_runner.cc:41
  #43 0x000055555735a9a8 in CreateStartupTasks () at 
../../content/browser/browser_main_loop.cc:917
  #44 0x000055555735d456 in Initialize () at 
../../content/browser/browser_main_runner_impl.cc:129
  #45 0x0000555557358f9b in BrowserMain () at 
../../content/browser/browser_main.cc:43
  #46 0x0000555558c5c338 in RunBrowserProcessMain () at 
../../content/app/content_main_runner_impl.cc:546
  #47 RunServiceManager () at ../../content/app/content_main_runner_impl.cc:979
  #48 0x0000555558c5c036 in Run () at 
../../content/app/content_main_runner_impl.cc:887
  #49 0x0000555558ccb678 in Main () at 
../../services/service_manager/embedder/main.cc:423
  #50 0x0000555558c5a411 in content::ContentMain(content::ContentMainParams 
const&) () at ../../content/app/content_main.cc:19
  #51 0x00005555566eaecf in ChromeMain () at ../../chrome/app/chrome_main.cc:110
  #52 0x00007ffff1365830 in __libc_start_main (main=0x5555566eae40 <main>, 
argc=4, argv=0x7fffffffdc08, init=<optimized out>, fini=<optimized out>, 
rtld_fini=<optimized out>, 
      stack_end=0x7fffffffdbf8) at ../csu/libc-start.c:291
  #53 0x00005555566ead39 in _start ()

  thread 17
  [Switching to thread 17 (Thread 0x7fffabfff700 (LWP 23451))]
  #0  __lll_lock_wait () at ../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:135
  135   in ../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S
  (gdb) bt
  #0  __lll_lock_wait () at ../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:135
  #1  0x00007ffff72d0dbd in __GI___pthread_mutex_lock (mutex=0x55555ef8b1a8 
<(anonymous namespace)::g_cache+40>) at ../nptl/pthread_mutex_lock.c:80
  #2  0x00005555565b734c in Lock () at 
../../base/synchronization/lock_impl_posix.cc:102
  #3  0x000055555a6c1135 in Acquire () at ../../base/synchronization/lock.h:31
  #4  BasicAutoLock () at ../../base/synchronization/lock_impl.h:84
  #5  GetPasswordV11 () at ../../components/os_crypt/os_crypt_linux.cc:97
  #6  0x000055555a6c098d in GetEncryptionKey () at 
../../components/os_crypt/os_crypt_linux.cc:119
  #7  DecryptString () at ../../components/os_crypt/os_crypt_linux.cc:212
  #8  0x000055555a6c07f9 in DecryptString16 () at 
../../components/os_crypt/os_crypt_linux.cc:145
  #9  0x000055555b0de830 in DecryptedString () at 
../../components/password_manager/core/browser/login_database_posix.cc:67
  #10 0x000055555b0a201b in InitPasswordFormFromStatement () at 
../../components/password_manager/core/browser/login_database.cc:1402
  #11 0x000055555b0a3127 in StatementToForms () at 
../../components/password_manager/core/browser/login_database.cc:1928
  #12 0x000055555b0a4378 in GetAllLoginsWithBlacklistSetting () at 
../../components/password_manager/core/browser/login_database.cc:1635
  #13 0x000055555b0bece7 in GetAutofillableLoginsImpl () at 
../../components/password_manager/core/browser/password_store.cc:893
  #14 InitOnBackgroundSequence () at 
../../components/password_manager/core/browser/password_store.cc:570
  #15 0x000055555b0c420e in InitOnBackgroundSequence () at 
../../components/password_manager/core/browser/password_store_default.cc:45
  #16 0x000055555674565e in Run () at ../../base/callback.h:98
  #17 ReturnAsParamAdapter<bool> () at 
../../base/post_task_and_reply_with_result_internal.h:22
  #18 0x00005555567456f7 in Invoke<void (*)(base::OnceCallback<bool ()>, 
std::__1::unique_ptr<bool, std::__1::default_delete<bool> > *), 
base::OnceCallback<bool ()>, std::__1::unique_ptr<bool, 
std::__1::default_delete<bool> > *> () at ../../base/bind_internal.h:398
  #19 MakeItSo<void (*)(base::OnceCallback<bool ()>, std::__1::unique_ptr<bool, 
std::__1::default_delete<bool> > *), base::OnceCallback<bool ()>, 
std::__1::unique_ptr<bool, std::__1::default_delete<bool> > *> () at 
../../base/bind_internal.h:598
  #20 RunImpl<void (*)(base::OnceCallback<bool ()>, std::__1::unique_ptr<bool, 
std::__1::default_delete<bool> > *), std::__1::tuple<base::OnceCallback<bool 
()>, std::__1::unique_ptr<bool, std::__1::default_delete<bool> > *>, 0, 1> () 
at ../../base/bind_internal.h:671
  #21 RunOnce () at ../../base/bind_internal.h:640
  #22 0x000055555912d033 in Run () at ../../base/callback.h:98
  #23 RunTaskAndPostReply () at 
../../base/threading/post_task_and_reply_impl.cc:97
  #24 0x000055555912d239 in Invoke<void (*)(base::(anonymous 
namespace)::PostTaskAndReplyRelay), base::(anonymous 
namespace)::PostTaskAndReplyRelay> () at ../../base/bind_internal.h:398
  #25 MakeItSo<void (*)(base::(anonymous namespace)::PostTaskAndReplyRelay), 
base::(anonymous namespace)::PostTaskAndReplyRelay> () at 
../../base/bind_internal.h:598
  #26 RunImpl<void (*)(base::(anonymous namespace)::PostTaskAndReplyRelay), 
std::__1::tuple<base::(anonymous namespace)::PostTaskAndReplyRelay>, 0> () at 
../../base/bind_internal.h:671
  #27 RunOnce () at ../../base/bind_internal.h:640
  #28 0x00005555565ad660 in Run () at ../../base/callback.h:98
  #29 RunTask () at ../../base/task/common/task_annotator.cc:142
  #30 0x000055555917f715 in 
base::internal::TaskTracker::RunSkipOnShutdown(base::internal::Task*) () at 
../../base/task/thread_pool/task_tracker.cc:737
  #31 0x000055555917f03b in RunTask () at 
../../base/task/thread_pool/task_tracker.cc:598
  #32 0x000055555916814b in RunTask () at 
../../base/task/thread_pool/task_tracker_posix.cc:23
  #33 0x00005555565b98d7 in RunAndPopNextTask () at 
../../base/task/thread_pool/task_tracker.cc:450
  #34 0x00005555565ba975 in RunWorker () at 
../../base/task/thread_pool/worker_thread.cc:321
  #35 0x0000555559182b24 in base::internal::WorkerThread::RunPooledWorker() () 
at ../../base/task/thread_pool/worker_thread.cc:223
  #36 0x0000555559168805 in ThreadFunc () at 
../../base/threading/platform_thread_posix.cc:81
  #37 0x00007ffff72ce6ba in start_thread (arg=0x7fffabfff700) at 
pthread_create.c:333
  #38 0x00007ffff144c41d in clone () at 
../sysdeps/unix/sysv/linux/x86_64/clone.S:109

  thread 24
  [Switching to thread 24 (Thread 0x7fff877fe700 (LWP 23461))]
  #0  pthread_cond_wait@@GLIBC_2.3.2 () at 
../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
  185   in ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S
  (gdb) bt
  #0  pthread_cond_wait@@GLIBC_2.3.2 () at 
../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
  #1  0x00005555591652f2 in Wait () at 
../../base/synchronization/condition_variable_posix.cc:75
  #2  0x00005555565b7539 in TimedWait () at 
../../base/synchronization/waitable_event_posix.cc:211
  #3  0x000055555916575f in base::WaitableEvent::Wait() () at 
../../base/synchronization/waitable_event_posix.cc:157
  #4  0x000055555a6c181b in WaitForInitOnTaskRunner () at 
../../components/os_crypt/key_storage_linux.cc:120
  #5  0x000055555a6c1530 in CreateService () at 
../../components/os_crypt/key_storage_linux.cc:72
  #6  0x000055555a6c0d83 in CreateKeyStorage () at 
../../components/os_crypt/os_crypt_linux.cc:75
  #7  0x000055555a6c11cd in GetPasswordV11 () at 
../../components/os_crypt/os_crypt_linux.cc:99
  #8  0x000055555a6c098d in GetEncryptionKey () at 
../../components/os_crypt/os_crypt_linux.cc:119
  #9  DecryptString () at ../../components/os_crypt/os_crypt_linux.cc:212
  #10 0x000055555a86b14d in GetAllTokens () at 
../../components/signin/public/webdata/token_service_table.cc:133
  #11 0x000055555a86a2b2 in GetAllTokens () at 
../../components/signin/public/webdata/token_web_data.cc:55
  #12 0x000055555a86a8ba in Invoke<std::__1::unique_ptr<WDTypedResult, 
std::__1::default_delete<WDTypedResult> > 
(TokenWebDataBackend::*)(WebDatabase*), scoped_refptr<TokenWebDataBackend> 
const&, WebDatabase*> () at ../../base/bind_internal.h:498
  #13 MakeItSo<std::__1::unique_ptr<WDTypedResult, 
std::__1::default_delete<WDTypedResult> > (TokenWebDataBackend::* 
const&)(WebDatabase*), scoped_refptr<TokenWebDataBackend> const&, WebDatabase*> 
() at ../../base/bind_internal.h:598
  #14 RunImpl<std::__1::unique_ptr<WDTypedResult, 
std::__1::default_delete<WDTypedResult> > (TokenWebDataBackend::* 
const&)(WebDatabase*), std::__1::tuple<scoped_refptr<TokenWebDataBackend> > 
const&, 0> () at ../../base/bind_internal.h:671
  #15 Run () at ../../base/bind_internal.h:653
  #16 0x000055555cddac54 in Run () at ../../base/callback.h:132
  #17 ExecuteReadTask () at 
../../components/webdata/common/web_database_backend.cc:86
  #18 DBReadTaskWrapper () at 
../../components/webdata/common/web_database_backend.cc:78
  #19 0x000055555cddc152 in Invoke<void (WebDatabaseBackend::*)(const 
base::RepeatingCallback<std::__1::unique_ptr<WDTypedResult, 
std::__1::default_delete<WDTypedResult> > (WebDatabase *)> &, 
std::__1::unique_ptr<WebDataRequest, std::__1::default_delete<WebDataRequest> 
>), scoped_refptr<WebDatabaseBackend>, 
base::RepeatingCallback<std::__1::unique_ptr<WDTypedResult, 
std::__1::default_delete<WDTypedResult> > (WebDatabase *)>, 
std::__1::unique_ptr<WebDataRequest, std::__1::default_delete<WebDataRequest> > 
> () at ../../base/bind_internal.h:498
  #20 MakeItSo<void (WebDatabaseBackend::*)(const 
base::RepeatingCallback<std::__1::unique_ptr<WDTypedResult, 
std::__1::default_delete<WDTypedResult> > (WebDatabase *)> &, 
std::__1::unique_ptr<WebDataRequest, std::__1::default_delete<WebDataRequest> 
>), scoped_refptr<WebDatabaseBackend>, 
base::RepeatingCallback<std::__1::unique_ptr<WDTypedResult, 
std::__1::default_delete<WDTypedResult> > (WebDatabase *)>, 
std::__1::unique_ptr<WebDataRequest, std::__1::default_delete<WebDataRequest> > 
> () at ../../base/bind_internal.h:598
  #21 RunImpl<void (WebDatabaseBackend::*)(const 
base::RepeatingCallback<std::__1::unique_ptr<WDTypedResult, 
std::__1::default_delete<WDTypedResult> > (WebDatabase *)> &, 
std::__1::unique_ptr<WebDataRequest, std::__1::default_delete<WebDataRequest> 
>), std::__1::tuple<scoped_refptr<WebDatabaseBackend>, 
base::RepeatingCallback<std::__1::unique_ptr<WDTypedResult, 
std::__1::default_delete<WDTypedResult> > (WebDatabase *)>, 
std::__1::unique_ptr<WebDataRequest, std::__1::default_delete<WebDataRequest> > 
>, 0, 1, 2> () at ../../base/bind_internal.h:671
  #22 RunOnce () at ../../base/bind_internal.h:640
  #23 0x00005555565ad660 in Run () at ../../base/callback.h:98
  #24 RunTask () at ../../base/task/common/task_annotator.cc:142
  #25 0x000055555917f755 in 
base::internal::TaskTracker::RunBlockShutdown(base::internal::Task*) () at 
../../base/task/thread_pool/task_tracker.cc:743
  #26 0x000055555917f03b in RunTask () at 
../../base/task/thread_pool/task_tracker.cc:598
  #27 0x000055555916814b in RunTask () at 
../../base/task/thread_pool/task_tracker_posix.cc:23
  #28 0x00005555565b98d7 in RunAndPopNextTask () at 
../../base/task/thread_pool/task_tracker.cc:450
  #29 0x00005555565ba975 in RunWorker () at 
../../base/task/thread_pool/worker_thread.cc:321
  #30 0x0000555559182b54 in base::internal::WorkerThread::RunSharedWorker() () 
at ../../base/task/thread_pool/worker_thread.cc:235
  #31 0x0000555559168805 in ThreadFunc () at 
../../base/threading/platform_thread_posix.cc:81
  #32 0x00007ffff72ce6ba in start_thread (arg=0x7fff877fe700) at 
pthread_create.c:333
  #33 0x00007ffff144c41d in clone () at 
../sysdeps/unix/sysv/linux/x86_64/clone.S:109

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