Thanks to Jaap Joris Vens for helping me figure out why my dumb ass
couldn't find the debug package with apt-cache (they're in a separate
repo now as the README points out).
I've discovered two interesting things, the first one is possibly
unrelated:
1. I can reliably cause Chromium to SIGSEGV by opening the Task Manager
(Ctrl+Esc). Here's a backtrace from such a crash:
----
Thread 1 "chromium" received signal SIGSEGV, Segmentation fault.
0x000055555a77cf87 in
memory_instrumentation::MemoryInstrumentation::RequestPrivateMemoryFootprint(int,
base::OnceCallback<void (bool,
std::unique_ptr<memory_instrumentation::GlobalMemoryDump,
std::default_delete<memory_instrumentation::GlobalMemoryDump> >)>) ()
(gdb) bt
#0 0x000055555a77cf87 in
memory_instrumentation::MemoryInstrumentation::RequestPrivateMemoryFootprint(int,
base::OnceCallback<void (bool,
std::unique_ptr<memory_instrumentation::GlobalMemoryDump,
std::default_delete<memory_instrumentation::GlobalMemoryDump> >)>) ()
#1 0x00005555591baaa9 in task_manager::TaskManagerImpl::Refresh() ()
#2 0x00005555593e7c76 in base::RepeatingTimer::RunUserTask() ()
#3 0x00005555593b5165 in base::TaskAnnotator::RunTask(char const*,
base::PendingTask*) ()
#4 0x00005555593c466b in
base::sequence_manager::internal::ThreadControllerWithMessagePumpImpl::DoWorkImpl(base::sequence_manager::LazyNow*,
bool*) ()
#5 0x00005555593c5fec in
base::sequence_manager::internal::ThreadControllerWithMessagePumpImpl::DoSomeWork()
()
#6 0x0000555559376aca in base::(anonymous
namespace)::WorkSourceDispatch(_GSource*, int (*)(void*), void*) ()
#7 0x00007ffff7064f2e in g_main_context_dispatch () at
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#8 0x00007ffff70651c8 in () at
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#9 0x00007ffff706525c in g_main_context_iteration () at
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#10 0x0000555559376dd0 in
base::MessagePumpGlib::Run(base::MessagePump::Delegate*) ()
#11 0x00005555593c62a9 in
base::sequence_manager::internal::ThreadControllerWithMessagePumpImpl::Run(bool,
base::TimeDelta) ()
#12 0x00005555593a22fa in base::RunLoop::Run() ()
#13 0x0000555558ea8217 in
ChromeBrowserMainParts::MainMessageLoopRun(int*) ()
#14 0x00005555571cd1c6 in
content::BrowserMainLoop::RunMainMessageLoopParts() ()
#15 0x00005555571cd375 in content::BrowserMainRunnerImpl::Run() ()
#16 0x00005555571a35f7 in
content::BrowserMain(content::MainFunctionParams const&) ()
#17 0x0000555558e30101 in
content::RunBrowserProcessMain(content::MainFunctionParams const&,
content::ContentMainDelegate*) ()
#18 0x0000555558e30338 in
content::ContentMainRunnerImpl::RunServiceManager(content::MainFunctionParams&,
bool) ()
#19 0x0000555558e306a7 in content::ContentMainRunnerImpl::Run(bool) ()
#20 0x0000555558e66802 in
service_manager::Main(service_manager::MainParams const&) ()
#21 0x0000555558e2e0c6 in
content::ContentMain(content::ContentMainParams const&) ()
#22 0x000055555635c3e5 in ChromeMain ()
#23 0x00007ffff04a1bbb in __libc_start_main (main=
0x555556339f80 <main>, argc=1, argv=0x7fffffffe168, init=<optimized
out>, fini=<optimized out>, rtld_fini=<optimized out>,
stack_end=0x7fffffffe158)
at ../csu/libc-start.c:308
#24 0x000055555635c22a in _start ()
(gdb)
----
Might be an unrelated issue though.
2. While running in gbd and watching a YouTube video in full screen, I
tried to pause it and couldn't (no cursor, YouTube UI not showing up),
only to find it had segfaulted randomly. The video continued to play
until I killed the process. This is that backtrace:
----
Thread 1 "chromium" received signal SIGSEGV, Segmentation fault.
0x000055555a77cee7 in
memory_instrumentation::MemoryInstrumentation::RequestGlobalDump(std::vector<std::__cxx11::basic_string<char,
std::char_traits<char>, std::allocator<char> >,
std::allocator<std::__cxx11::basic_string<char, std::char_traits<char>,
std::allocator<char> > > > const&, base::OnceCallback<void (bool,
std::unique_ptr<memory_instrumentation::GlobalMemoryDump,
std::default_delete<memory_instrumentation::GlobalMemoryDump> >)>) ()
(gdb) bt
#0 0x000055555a77cee7 in
memory_instrumentation::MemoryInstrumentation::RequestGlobalDump(std::vector<std::__cxx11::basic_string<char,
std::char_traits<char>, std::allocator<char> >,
std::allocator<std::__cxx11::basic_string<char, std::char_traits<char>,
std::allocator<char> > > > const&, base::OnceCallback<void (bool,
std::unique_ptr<memory_instrumentation::GlobalMemoryDump,
std::default_delete<memory_instrumentation::GlobalMemoryDump> >)>) ()
#1 0x0000555558f8ddb0 in
ProcessMemoryMetricsEmitter::FetchAndEmitProcessMemoryMetrics() ()
#2 0x0000555558f85e82 in (anonymous namespace)::RecordMemoryMetrics()
()
#3 0x00005555593b5165 in base::TaskAnnotator::RunTask(char const*,
base::PendingTask*) ()
#4 0x00005555593c466b in
base::sequence_manager::internal::ThreadControllerWithMessagePumpImpl::DoWorkImpl(base::sequence_manager::LazyNow*,
bool*) ()
#5 0x00005555593c5fec in
base::sequence_manager::internal::ThreadControllerWithMessagePumpImpl::DoSomeWork()
()
#6 0x0000555559376aca in base::(anonymous
namespace)::WorkSourceDispatch(_GSource*, int (*)(void*), void*) ()
#7 0x00007ffff7064f2e in g_main_context_dispatch () at
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#8 0x00007ffff70651c8 in () at
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#9 0x00007ffff706525c in g_main_context_iteration () at
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#10 0x0000555559376dd0 in
base::MessagePumpGlib::Run(base::MessagePump::Delegate*) ()
#11 0x00005555593c62a9 in
base::sequence_manager::internal::ThreadControllerWithMessagePumpImpl::Run(bool,
base::TimeDelta) ()
#12 0x00005555593a22fa in base::RunLoop::Run() ()
#13 0x0000555558ea8217 in
ChromeBrowserMainParts::MainMessageLoopRun(int*) ()
#14 0x00005555571cd1c6 in
content::BrowserMainLoop::RunMainMessageLoopParts() ()
#15 0x00005555571cd375 in content::BrowserMainRunnerImpl::Run() ()
#16 0x00005555571a35f7 in
content::BrowserMain(content::MainFunctionParams const&) ()
#17 0x0000555558e30101 in
content::RunBrowserProcessMain(content::MainFunctionParams const&,
content::ContentMainDelegate*) ()
#18 0x0000555558e30338 in
content::ContentMainRunnerImpl::RunServiceManager(content::MainFunctionParams&,
bool) ()
#19 0x0000555558e306a7 in content::ContentMainRunnerImpl::Run(bool) ()
#20 0x0000555558e66802 in
service_manager::Main(service_manager::MainParams const&) ()
#21 0x0000555558e2e0c6 in
content::ContentMain(content::ContentMainParams const&) ()
#22 0x000055555635c3e5 in ChromeMain ()
#23 0x00007ffff04a1bbb in __libc_start_main (main=
0x555556339f80 <main>, argc=1, argv=0x7fffffffe168, init=<optimized
out>, fini=<optimized out>, rtld_fini=<optimized out>,
stack_end=0x7fffffffe158)
at ../csu/libc-start.c:308
#24 0x000055555635c22a in _start ()
(gdb)
----
Finally, it crashed twice while I was composing this message, so here's
one of those:
----
Thread 1 "chromium" received signal SIGSEGV, Segmentation fault.
0x000055555a77cee7 in
memory_instrumentation::MemoryInstrumentation::RequestGlobalDump(std::vector<std::__cxx11::basic_string<char,
std::char_traits<char>, std::allocator<char> >,
std::allocator<std::__cxx11::basic_string<char, std::char_traits<char>,
std::allocator<char> > > > const&, base::OnceCallback<void (bool,
std::unique_ptr<memory_instrumentation::GlobalMemoryDump,
std::default_delete<memory_instrumentation::GlobalMemoryDump> >)>) ()
(gdb) bt
#0 0x000055555a77cee7 in
memory_instrumentation::MemoryInstrumentation::RequestGlobalDump(std::vector<std::__cxx11::basic_string<char,
std::char_traits<char>, std::allocator<char> >,
std::allocator<std::__cxx11::basic_string<char, std::char_traits<char>,
std::allocator<char> > > > const&, base::OnceCallback<void (bool,
std::unique_ptr<memory_instrumentation::GlobalMemoryDump,
std::default_delete<memory_instrumentation::GlobalMemoryDump> >)>) ()
#1 0x0000555558f8ddb0 in
ProcessMemoryMetricsEmitter::FetchAndEmitProcessMemoryMetrics() ()
#2 0x0000555558f85e82 in (anonymous namespace)::RecordMemoryMetrics()
()
#3 0x00005555593b5165 in base::TaskAnnotator::RunTask(char const*,
base::PendingTask*) ()
#4 0x00005555593c466b in
base::sequence_manager::internal::ThreadControllerWithMessagePumpImpl::DoWorkImpl(base::sequence_manager::LazyNow*,
bool*) ()
#5 0x00005555593c5fec in
base::sequence_manager::internal::ThreadControllerWithMessagePumpImpl::DoSomeWork()
()
#6 0x0000555559376aca in base::(anonymous
namespace)::WorkSourceDispatch(_GSource*, int (*)(void*), void*) ()
#7 0x00007ffff7064f2e in g_main_context_dispatch () at
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#8 0x00007ffff70651c8 in () at
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#9 0x00007ffff706525c in g_main_context_iteration () at
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#10 0x0000555559376dd0 in
base::MessagePumpGlib::Run(base::MessagePump::Delegate*) ()
#11 0x00005555593c62a9 in
base::sequence_manager::internal::ThreadControllerWithMessagePumpImpl::Run(bool,
base::TimeDelta) ()
#12 0x00005555593a22fa in base::RunLoop::Run() ()
#13 0x0000555558ea8217 in
ChromeBrowserMainParts::MainMessageLoopRun(int*) ()
#14 0x00005555571cd1c6 in
content::BrowserMainLoop::RunMainMessageLoopParts() ()
#15 0x00005555571cd375 in content::BrowserMainRunnerImpl::Run() ()
#16 0x00005555571a35f7 in
content::BrowserMain(content::MainFunctionParams const&) ()
#17 0x0000555558e30101 in
content::RunBrowserProcessMain(content::MainFunctionParams const&,
content::ContentMainDelegate*) ()
#18 0x0000555558e30338 in
content::ContentMainRunnerImpl::RunServiceManager(content::MainFunctionParams&,
bool) ()
#19 0x0000555558e306a7 in content::ContentMainRunnerImpl::Run(bool) ()
#20 0x0000555558e66802 in
service_manager::Main(service_manager::MainParams const&) ()
#21 0x0000555558e2e0c6 in
content::ContentMain(content::ContentMainParams const&) ()
#22 0x000055555635c3e5 in ChromeMain ()
#23 0x00007ffff04a1bbb in __libc_start_main (main=
0x555556339f80 <main>, argc=1, argv=0x7fffffffe168, init=<optimized
out>, fini=<optimized out>, rtld_fini=<optimized out>,
stack_end=0x7fffffffe158)
at ../csu/libc-start.c:308
#24 0x000055555635c22a in _start ()
(gdb)
----
- Michel
