623216 - "Syscall param socketcall.sendmsg(msg.msg_iov[i]) points to uninitialised byte(s)" sending Reply_NotifyIMEFocus

Status: RESOLVED FIXED

(Core :: Widget, defect)

Description

[Chris Jones [:cjones] inactive; ni?/f?/r? if you need me]

==1092== Thread 2:
==1092== Syscall param socketcall.sendmsg(msg.msg_iov[i]) points to uninitialised byte(s)
==1092==    at 0x4E3BF2D: ??? (syscall-template.S:82)
==1092==    by 0x711307E: IPC::Channel::ChannelImpl::ProcessOutgoingMessages() (ipc_channel_posix.cc:623)
==1092==    by 0x71132FF: IPC::Channel::ChannelImpl::Send(IPC::Message*) (ipc_channel_posix.cc:679)
==1092==    by 0x7113AA8: IPC::Channel::Send(IPC::Message*) (ipc_channel_posix.cc:822)
==1092==    by 0x6DD200D: void DispatchToMethod<IPC::Channel, bool (IPC::Channel::*)(IPC::Message*), IPC::Message*>(IPC::Channel*, bool (IPC::Channel::*)(IPC::Message*), Tuple1<IPC::Message*> const&) (tuple.h:393)
==1092==    by 0x6DD1D0F: RunnableMethod<IPC::Channel, bool (IPC::Channel::*)(IPC::Message*), Tuple1<IPC::Message*> >::Run() (task.h:307)
==1092==    by 0x70A6541: MessageLoop::RunTask(Task*) (message_loop.cc:343)
==1092==    by 0x70A65B1: MessageLoop::DeferOrRunPendingTask(MessageLoop::PendingTask const&) (message_loop.cc:351)
==1092==    by 0x70A69AF: MessageLoop::DoWork() (message_loop.cc:451)
==1092==    by 0x7100941: base::MessagePumpLibevent::Run(base::MessagePump::Delegate*) (message_pump_libevent.cc:309)
==1092==    by 0x70A604C: MessageLoop::RunInternal() (message_loop.cc:219)
==1092==    by 0x70A5FD1: MessageLoop::RunHandler() (message_loop.cc:202)
==1092==  Address 0x190ad458 is 40 bytes inside a block of size 64 alloc'd
==1092==    at 0x4C274A8: malloc (vg_replace_malloc.c:236)
==1092==    by 0x4C27522: realloc (vg_replace_malloc.c:525)
==1092==    by 0x706D0D2: realloc (nsTraceMalloc.c:1224)
==1092==    by 0x920718A: moz_realloc (mozalloc.cpp:140)
==1092==    by 0x70B4B75: Pickle::Resize(unsigned int) (pickle.cc:519)
==1092==    by 0x70B301A: Pickle::Pickle(int) (pickle.cc:46)
==1092==    by 0x70E9C17: IPC::Message::Message(int, unsigned int, IPC::Message::PriorityValue, char const*) (ipc_message.cc:36)
==1092==    by 0x6E1D147: mozilla::dom::PBrowser::Reply_NotifyIMEFocus::Reply_NotifyIMEFocus() (PBrowser.h:384)
==1092==    by 0x6E1968A: mozilla::dom::PBrowserParent::OnMessageReceived(IPC::Message const&, IPC::Message*&) (PBrowserParent.cpp:1082)
==1092==    by 0x6E27EDC: mozilla::dom::PContentParent::OnMessageReceived(IPC::Message const&, IPC::Message*&) (PContentParent.cpp:1242)
==1092==    by 0x6DE2F32: mozilla::ipc::SyncChannel::OnDispatchMessage(IPC::Message const&) (SyncChannel.cpp:169)
==1092==    by 0x6DD9700: mozilla::ipc::RPCChannel::OnMaybeDequeueOne() (RPCChannel.cpp:436)
==1092== 


Note this is on desktop-gtk.  Not quite sure what's up here.

Comment 1

[Chris Jones [:cjones] inactive; ni?/f?/r? if you need me]

Attachment: mIMESeqno is not initialized

Harmless bug, but annoying valgrind spam.

Comment 2

[Chris Jones [:cjones] inactive; ni?/f?/r? if you need me]

Well, not harmless, but unlikely to cause a lot of problems in the field.

Comment 3

[Chris Jones [:cjones] inactive; ni?/f?/r? if you need me]

http://hg.mozilla.org/mozilla-central/rev/735dfa53d779