Bug#846782: gobject-introspection randomly hangs liferea build

Paul Gevers elbrus at debian.org
Sun Dec 11 20:11:59 UTC 2016 

Hi

On 11-12-16 17:46, Emilio Pozuelo Monfort wrote:
> They should be available in stretch:

I missed the part where it is in a separate archive.

> emilio at tatooine:~$ apt-cache madison libwebkit2gtk-4.0-37-dbgsym libjavascriptcoregtk-4.0-18-dbgsym 
> libwebkit2gtk-4.0-37-dbgsym |   2.14.2-1 | http://debug.mirrors.debian.org/debian-debug testing-debug/main amd64 Packages
> libwebkit2gtk-4.0-37-dbgsym |   2.14.2-1 | http://debug.mirrors.debian.org/debian-debug unstable-debug/main amd64 Packages
> libjavascriptcoregtk-4.0-18-dbgsym |   2.14.2-1 | http://debug.mirrors.debian.org/debian-debug testing-debug/main amd64 Packages
> libjavascriptcoregtk-4.0-18-dbgsym |   2.14.2-1 | http://debug.mirrors.debian.org/debian-debug unstable-debug/main amd64 Packages

Interestingly, [1] shows it's only available in experimental and sid.

[1] https://packages.debian.org/search?keywords=libwebkit2gtk-4.0-37-dbgsym

> Can you install those and get a new trace, this time running
> 
> (gdb) thread apply all backtrace

Done and attached.

Paul
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paul at testavoira ~ $ gdb -p 5674
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Attaching to process 5674
[New LWP 5675]
[New LWP 5676]
[New LWP 5677]
[New LWP 5678]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
0x00007f55d97fd18f in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
(gdb) thread apply all backtrace

Thread 5 (Thread 0x7f5585ffd700 (LWP 5678)):
#0  0x00007f55d953156d in poll () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007f55d9a579f6 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f55d9a57d82 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f55d5d30620 in WTF::RunLoop::run () at ./Source/WTF/wtf/glib/RunLoopGLib.cpp:94
#4  0x00007f55d5d2f292 in WTF::WorkQueue::<lambda()>::operator() (__closure=0x7f5585ffcb40)
    at ./Source/WTF/wtf/generic/WorkQueueGeneric.cpp:58
#5  std::_Function_handler<void(), WTF::WorkQueue::platformInitialize(char const*, WTF::WorkQueue::Type, WTF::WorkQueue::QOS)::<lambda()> >::_M_invoke(const std::_Any_data &) (__functor=...) at /usr/include/c++/6/functional:1740
#6  0x00007f55d5d09f85 in std::function<void ()>::operator()() const (this=0x7f5585ffcb40) at /usr/include/c++/6/functional:2136
#7  WTF::threadEntryPoint (contextData=0x7f55c79ec190) at ./Source/WTF/wtf/Threading.cpp:60
#8  0x00007f55d5d2ddba in WTF::wtfThreadEntryPoint (param=0x7f55c79f7070) at ./Source/WTF/wtf/ThreadingPthreads.cpp:164
#9  0x00007f55d97f7464 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#10 0x00007f55d953a9df in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 4 (Thread 0x7f55867fe700 (LWP 5677)):
#0  0x00007f55d953156d in poll () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007f55d9a579f6 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f55d9a57d82 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f55d5d30620 in WTF::RunLoop::run () at ./Source/WTF/wtf/glib/RunLoopGLib.cpp:94
#4  0x00007f55d5d2f292 in WTF::WorkQueue::<lambda()>::operator() (__closure=0x7f55867fdb40)
    at ./Source/WTF/wtf/generic/WorkQueueGeneric.cpp:58
#5  std::_Function_handler<void(), WTF::WorkQueue::platformInitialize(char const*, WTF::WorkQueue::Type, WTF::WorkQueue::QOS)::<lambda()> >::_M_invoke(const std::_Any_data &) (__functor=...) at /usr/include/c++/6/functional:1740
#6  0x00007f55d5d09f85 in std::function<void ()>::operator()() const (this=0x7f55867fdb40) at /usr/include/c++/6/functional:2136
#7  WTF::threadEntryPoint (contextData=0x7f55c79ec140) at ./Source/WTF/wtf/Threading.cpp:60
#8  0x00007f55d5d2ddba in WTF::wtfThreadEntryPoint (param=0x7f55c79f7050) at ./Source/WTF/wtf/ThreadingPthreads.cpp:164
#9  0x00007f55d97f7464 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#10 0x00007f55d953a9df in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 3 (Thread 0x7f5586fff700 (LWP 5676)):
#0  0x00007f55d953156d in poll () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007f55d9a579f6 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f55d9a57d82 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f55d5d30620 in WTF::RunLoop::run () at ./Source/WTF/wtf/glib/RunLoopGLib.cpp:94
#4  0x00007f55d5d2f292 in WTF::WorkQueue::<lambda()>::operator() (__closure=0x7f5586ffeb40)
    at ./Source/WTF/wtf/generic/WorkQueueGeneric.cpp:58
#5  std::_Function_handler<void(), WTF::WorkQueue::platformInitialize(char const*, WTF::WorkQueue::Type, WTF::WorkQueue::QOS)::<lambda()> >::_M_invoke(const std::_Any_data &) (__functor=...) at /usr/include/c++/6/functional:1740
#6  0x00007f55d5d09f85 in std::function<void ()>::operator()() const (this=0x7f5586ffeb40) at /usr/include/c++/6/functional:2136
#7  WTF::threadEntryPoint (contextData=0x7f55c79ec0f0) at ./Source/WTF/wtf/Threading.cpp:60
#8  0x00007f55d5d2ddba in WTF::wtfThreadEntryPoint (param=0x7f55c79f7010) at ./Source/WTF/wtf/ThreadingPthreads.cpp:164
#9  0x00007f55d97f7464 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#10 0x00007f55d953a9df in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 2 (Thread 0x7f55c82f8700 (LWP 5675)):
#0  0x00007f55d97fd18f in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007f55d0c0e39c in std::condition_variable::wait(std::unique_lock<std::mutex>&) ()
   from /usr/lib/x86_64-linux-gnu/libstdc++.so.6
#2  0x00007f55d5d35e56 in std::_V2::condition_variable_any::wait<std::unique_lock<bmalloc::Mutex> > (__lock=<synthetic pointer>, 
    this=<optimized out>) at /usr/include/c++/6/condition_variable:251
#3  std::_V2::condition_variable_any::wait<std::unique_lock<bmalloc::Mutex>, bmalloc::AsyncTask<bmalloc::Heap, void (bmalloc::Heap::*)()>::threadRunLoop()::{lambda()#1}>(std::unique_lock<bmalloc::Mutex>&, bmalloc::AsyncTask<bmalloc::Heap, void (bmalloc::Heap::*)()>::threadRunLoop()::{lambda()#1}) (__p=..., __lock=..., this=<optimized out>) at /usr/include/c++/6/condition_variable:260
#4  bmalloc::AsyncTask<bmalloc::Heap, void (bmalloc::Heap::*)()>::threadRunLoop (
    this=0x7f55d5f1fe60 <bmalloc::PerProcess<bmalloc::Heap>::s_memory+3072>) at ./Source/bmalloc/bmalloc/AsyncTask.h:126
#5  0x00007f55d5d35f89 in bmalloc::AsyncTask<bmalloc::Heap, void (bmalloc::Heap::*)()>::threadEntryPoint (asyncTask=<optimized out>)
    at ./Source/bmalloc/bmalloc/AsyncTask.h:106
#6  0x00007f55d0c13cdf in ?? () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6
#7  0x00007f55d97f7464 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#8  0x00007f55d953a9df in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 1 (Thread 0x7f55deff3fc0 (LWP 5674)):
#0  0x00007f55d97fd18f in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007f55d0c0e39c in std::condition_variable::wait(std::unique_lock<std::mutex>&) ()
   from /usr/lib/x86_64-linux-gnu/libstdc++.so.6
#2  0x00007f55d5d0733a in WTF::ParkingLot::parkConditionallyImpl(void const*, WTF::ScopedLambda<bool ()> const&, WTF::ScopedLambda<void ()> const&, std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > >) (
    address=address at entry=0x7f55c79f92a1, validation=..., beforeSleep=..., timeout=timeout at entry=...)
    at ./Source/WTF/wtf/ParkingLot.cpp:601
#3  0x00007f55d5d2f738 in WTF::ParkingLot::parkConditionally<bool WTF::ConditionBase::waitUntil<WTF::Lock>(WTF::Lock&, std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > >)::{lambda()#1}, bool WTF::ConditionBase::waitUntil<WTF::Lock>(WTF::Lock&, std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > >)::{lambda()#2}>(void const*, bool WTF::ConditionBase::waitUntil<WTF::Lock>(WTF::Lock&, std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > >)::{lambda()#1} const&, bool WTF::ConditionBase::waitUntil<WTF::Lock>(WTF::Lock&, std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > >)::{lambda()#2} const&, std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > >) (timeout=..., beforeSleep=..., validation=..., address=0x7f55c79f92a1) at ./Source/WTF/wtf/ParkingLot.h:77
#4  WTF::ConditionBase::waitUntil<WTF::Lock> (timeout=..., lock=..., this=0x7f55c79f92a1) at ./Source/WTF/wtf/Condition.h:74
#5  WTF::ConditionBase::wait<WTF::Lock> (lock=..., this=0x7f55c79f92a1) at ./Source/WTF/wtf/Condition.h:113
#6  WTF::WorkQueue::platformInvalidate (this=this at entry=0x7f55c79f9280) at ./Source/WTF/wtf/generic/WorkQueueGeneric.cpp:74
#7  0x00007f55d5d0a677 in WTF::WorkQueue::~WorkQueue (this=0x7f55c79f9280, __in_chrg=<optimized out>)
    at ./Source/WTF/wtf/WorkQueue.cpp:54
#8  0x00007f55d5d0a689 in WTF::WorkQueue::~WorkQueue (this=0x7f55c79f9280, __in_chrg=<optimized out>)
    at ./Source/WTF/wtf/WorkQueue.cpp:55
#9  0x00007f55dc4f9fc2 in WTF::ThreadSafeRefCounted<WTF::FunctionDispatcher>::deref (this=<optimized out>)
    at ./Source/WTF/wtf/ThreadSafeRefCounted.h:79
#10 WTF::Ref<WTF::WorkQueue>::~Ref (this=0x7f55c79e7088, __in_chrg=<optimized out>) at ./Source/WTF/wtf/Ref.h:59
#11 WebKit::WebsiteDataStore::~WebsiteDataStore (this=0x7f55c79e7000, __in_chrg=<optimized out>)
    at ./Source/WebKit2/UIProcess/WebsiteData/WebsiteDataStore.cpp:96
#12 0x00007f55dc4fa059 in WebKit::WebsiteDataStore::~WebsiteDataStore (this=0x7f55c79e7000, __in_chrg=<optimized out>)
    at ./Source/WebKit2/UIProcess/WebsiteData/WebsiteDataStore.cpp:104
#13 0x00007f55dc4a7029 in API::WebsiteDataStore::~WebsiteDataStore (this=0x7f55c79f1210, __in_chrg=<optimized out>)
    at ./Source/WebKit2/UIProcess/API/APIWebsiteDataStore.cpp:65
#14 0x00007f55dc660635 in WTF::ThreadSafeRefCounted<API::Object>::deref (this=<optimized out>)
    at ./Source/WTF/wtf/ThreadSafeRefCounted.h:79
#15 WTF::derefIfNotNull<API::WebsiteDataStore> (ptr=<optimized out>) at ./Source/WTF/wtf/PassRefPtr.h:40
#16 WTF::RefPtr<API::WebsiteDataStore>::~RefPtr (this=0x558ac5a522a0, __in_chrg=<optimized out>) at ./Source/WTF/wtf/RefPtr.h:62
#17 _WebKitWebsiteDataManagerPrivate::~_WebKitWebsiteDataManagerPrivate (this=0x558ac5a522a0, __in_chrg=<optimized out>)
    at ./Source/WebKit2/UIProcess/API/gtk/WebKitWebsiteDataManager.cpp:72
#18 webkit_website_data_manager_finalize (object=0x558ac5a522e0) at ./Source/WebKit2/UIProcess/API/gtk/WebKitWebsiteDataManager.cpp:83
#19 0x00007f55d9d35c7a in g_object_unref () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#20 0x00007f55dc647304 in WTF::derefGPtr<_WebKitWebsiteDataManager> (ptr=<optimized out>) at ./Source/WTF/wtf/glib/GRefPtr.h:251
#21 WTF::GRefPtr<_WebKitWebsiteDataManager>::~GRefPtr (this=0x558ac5ab6930, __in_chrg=<optimized out>)
    at ./Source/WTF/wtf/glib/GRefPtr.h:77
#22 _WebKitWebContextPrivate::~_WebKitWebContextPrivate (this=0x558ac5ab68c0, __in_chrg=<optimized out>)
    at ./Source/WebKit2/UIProcess/API/gtk/WebKitWebContext.cpp:160
#23 webkit_web_context_finalize (object=0x558ac5ab6980) at ./Source/WebKit2/UIProcess/API/gtk/WebKitWebContext.cpp:196
#24 0x00007f55d9d35c7a in g_object_unref () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#25 0x00007f55d9487920 in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#26 0x00007f55d948797a in exit () from /lib/x86_64-linux-gnu/libc.so.6
#27 0x00007f55d9f82477 in ?? () from /usr/lib/x86_64-linux-gnu/libgirepository-1.0.so.1
#28 0x00007f55d9a62054 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#29 0x00007f55d9a624bf in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#30 0x00007f55d9a64062 in g_option_context_parse () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#31 0x0000558ac40720a5 in main (argc=<optimized out>, argv=<optimized out>) at main.c:209
(gdb) 
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