зеркало из https://github.com/mozilla/gecko-dev.git
55361bf402
StartGamepadMonitoring() can end up in AddGamepad, and acquire the lock
again on the same thread, effectively dead-locking.
This is a regression from bug 1657404. Relevant stack:
(gdb) bt
#0 0x00007fd19bace801 in clock_nanosleep@GLIBC_2.2.5 () at /lib64/libc.so.6
#1 0x00007fd19bad4157 in nanosleep () at /lib64/libc.so.6
#2 0x00007fd19bad408e in sleep () at /lib64/libc.so.6
#3 0x00007fd195233e87 in ah_crap_handler(int) (signum=11) at /home/emilio/src/moz/gecko-4/toolkit/xre/nsSigHandlers.cpp:95
#4 0x00007fd1952165c4 in nsProfileLock::FatalSignalHandler(int, siginfo_t*, void*) (signo=11, info=0x7fd14abb9db0, context=0x7fd14abb9c80) at /home/emilio/src/moz/gecko-4/toolkit/profile/nsProfileLock.cpp:177
#5 0x00007fd1964973b2 in WasmTrapHandler(int, siginfo_t*, void*) (signum=11, info=<optimized out>, context=<optimized out>) at /home/emilio/src/moz/gecko-4/js/src/wasm/WasmSignalHandlers.cpp:978
#6 0x00007fd19bf3ca90 in <signal handler called> () at /lib64/libpthread.so.0
#7 mozilla::detail::MutexImpl::mutexLock() (this=<optimized out>) at /home/emilio/src/moz/gecko-4/mozglue/misc/Mutex_posix.cpp:118
#8 mozilla::detail::MutexImpl::lock() (this=<optimized out>) at /home/emilio/src/moz/gecko-4/mozglue/misc/Mutex_posix.cpp:142
#9 0x00007fd190cc795a in mozilla::OffTheBooksMutex::Lock() (this=0x7fd136649398) at /home/emilio/src/moz/gecko-4/xpcom/threads/BlockingResourceBase.cpp:318
#10 0x00007fd19326e65e in mozilla::detail::BaseAutoLock<mozilla::Mutex&>::BaseAutoLock(mozilla::Mutex&) (this=<optimized out>, aLock=...) at /home/emilio/src/moz/gecko-4/obj-debug-no-sccache/dist/include/mozilla/Mutex.h:159
#11 mozilla::dom::GamepadPlatformService::NotifyGamepadChange<mozilla::dom::GamepadAdded>(unsigned int, mozilla::dom::GamepadAdded const&) (this=0x7fd136649380, aIndex=1, aInfo=...)
at /home/emilio/src/moz/gecko-4/dom/gamepad/GamepadPlatformService.cpp:65
#12 0x00007fd193269178 in mozilla::dom::GamepadPlatformService::AddGamepad(char const*, mozilla::dom::GamepadMappingType, mozilla::dom::GamepadHand, unsigned int, unsigned int, unsigned int, unsigned int, unsigned int)
(this=0x7fd136649380, aID=<optimized out>, aMapping=mozilla::dom::GamepadMappingType::_empty, aHand=mozilla::dom::GamepadHand::_empty, aNumButtons=11, aNumAxes=8, aHaptics=0, aNumLightIndicator=0, aNumTouchEvents=0)
at /home/emilio/src/moz/gecko-4/dom/gamepad/GamepadPlatformService.cpp:96
#13 0x00007fd19326de4a in (anonymous namespace)::LinuxGamepadService::AddDevice(mozilla::udev_device*) (this=<optimized out>, dev=<optimized out>) at /home/emilio/src/moz/gecko-4/dom/gamepad/linux/LinuxGamepad.cpp:139
#14 0x00007fd19326a156 in (anonymous namespace)::LinuxGamepadService::ScanForDevices() (this=<optimized out>) at /home/emilio/src/moz/gecko-4/dom/gamepad/linux/LinuxGamepad.cpp:188
#15 (anonymous namespace)::LinuxGamepadService::Startup() (this=<optimized out>) at /home/emilio/src/moz/gecko-4/dom/gamepad/linux/LinuxGamepad.cpp:233
#16 mozilla::dom::StartGamepadMonitoring() () at /home/emilio/src/moz/gecko-4/dom/gamepad/linux/LinuxGamepad.cpp:334
#17 0x00007fd193269c6b in mozilla::dom::GamepadPlatformService::AddChannelParent(mozilla::dom::GamepadEventChannelParent*) (this=<optimized out>, aParent=<optimized out>)
at /home/emilio/src/moz/gecko-4/dom/gamepad/GamepadPlatformService.cpp:225
#18 0x00007fd19326d175 in mozilla::dom::GamepadEventChannelParent::Init() (this=0x7fd136e76a00) at /home/emilio/src/moz/gecko-4/dom/gamepad/ipc/GamepadEventChannelParent.cpp:50
#19 0x00007fd1913ba3a6 in mozilla::ipc::BackgroundParentImpl::RecvPGamepadEventChannelConstructor(mozilla::dom::PGamepadEventChannelParent*) (this=0x7fd13f888000, aActor=0x0)
at /home/emilio/src/moz/gecko-4/ipc/glue/BackgroundParentImpl.cpp:1109
#20 0x00007fd1917c7da1 in mozilla::ipc::PBackgroundParent::OnMessageReceived(IPC::Message const&) (this=0x7fd13f888000, msg__=...) at PBackgroundParent.cpp:4967
#21 0x00007fd1913ea71d in mozilla::ipc::MessageChannel::DispatchAsyncMessage(mozilla::ipc::ActorLifecycleProxy*, IPC::Message const&) (this=0x7fd13f8880f8, aProxy=0x7fd13ff48140, aMsg=...)
Differential Revision: https://phabricator.services.mozilla.com/D87967
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||
|---|---|---|
| .. | ||
| android | ||
| cocoa | ||
| fallback | ||
| ipc | ||
| linux | ||
| windows | ||
| Gamepad.cpp | ||
| Gamepad.h | ||
| GamepadButton.cpp | ||
| GamepadButton.h | ||
| GamepadHapticActuator.cpp | ||
| GamepadHapticActuator.h | ||
| GamepadLightIndicator.cpp | ||
| GamepadLightIndicator.h | ||
| GamepadManager.cpp | ||
| GamepadManager.h | ||
| GamepadMonitoring.h | ||
| GamepadPlatformService.cpp | ||
| GamepadPlatformService.h | ||
| GamepadPose.cpp | ||
| GamepadPose.h | ||
| GamepadPoseState.h | ||
| GamepadRemapping.cpp | ||
| GamepadRemapping.h | ||
| GamepadServiceTest.cpp | ||
| GamepadServiceTest.h | ||
| GamepadTouch.cpp | ||
| GamepadTouch.h | ||
| GamepadTouchState.h | ||
| moz.build | ||