Re: [Gems-users] Possible Deadlock detected

[Mike Marty <mikem@xxxxxxxxxxx>]

$GEMS/ruby/config/rubyconfig.defaults


> How I can find out which network topology I am using?
> Where Can I configure that?
>
>
> > What network topology?  MOSI_SMP_bcast_1level must use an ordered topology
> > like HIERARCHICAL_SWITCH
> >
> > > Hi,
> > >
> > > I am running a modified MOSI_SMP_bcast_1level version of ruby and got the
> > > "Possible Deadlock detected" error.
> > >
> > > When looking at the debug trace I saw that for the first 1000 time units I
> > > sometimes get the following:
> > > Debug: in fn virtual void Throttle::wakeup() in network/simple/Throttle.C:256:
> > > [Throttle: 42 1 bw: 10000]
> > > Debug: in fn virtual void Throttle::wakeup() in network/simple/Throttle.C:257:
> > > not scheduled again
> > > Debug: in fn void runRubyEventQueue(conf_object_t*, lang_void*) in
> > > simics/interface.C:92: time is 138
> > > Debug: in fn void runRubyEventQueue(conf_object_t*, lang_void*) in
> > > simics/interface.C:92: time is 139
> > > Debug: in fn void runRubyEventQueue(conf_object_t*, lang_void*) in
> > > simics/interface.C:92: time is 140
> > > Debug: in fn void runRubyEventQueue(conf_object_t*, lang_void*) in
> > > simics/interface.C:92: time is 141
> > > ...
> > > Debug: in fn void runRubyEventQueue(conf_object_t*, lang_void*) in
> > > simics/interface.C:92: time is 170
> > > Debug: in fn void runRubyEventQueue(conf_object_t*, lang_void*) in
> > > simics/interface.C:92: time is 171
> > > Debug: in fn void EventQueue::triggerEvents(Time) in
> > > eventqueue/EventQueue.C:119: *(thisNode.m_consumer_ptr) is [PerfectSwitch 52]
> > >
> > > (Where the hree dots are all the time units between 141-170)
> > >
> > > And after a while I got the following:
> > >
> > > Debug: in fn void L1Cache_Controller::j_popDataQueue(const Address&) in
> > > generated/MOSI_SMP_STM_bcast_1level/L1Cache_Controller.C:203: executing
> > > Debug: in fn void MessageBuffer::pop() in buffers/MessageBuffer.C:339: pop
> > > from [Chip 6 0, L1Cache, dataNetwork_in]
> > > Debug: in fn TransitionResult L1Cache_Controller::doTransition(L1Cache_Event,
> > > L1Cache_State, const Address&) in generated/MOSI_SMP_STM_bcast_1level/L1Cache
> > > _Transitions.C:32: next_state is TC
> > >
> > > Debug: in fn bool CacheMemory<ENTRY>::isTagPresent(const Address&) const [with
> > > ENTRY = L1Cache_Entry] in system/CacheMemory.h:366: address is [0x18c6b80, l
> > > ine 0x18c6b80]
> > > Debug: in fn bool CacheMemory<ENTRY>::isTagPresent(const Address&) const [with
> > > ENTRY = L1Cache_Entry] in system/CacheMemory.h:367: found
> > > Debug: in fn void runRubyEventQueue(conf_object_t*, lang_void*) in
> > > simics/interface.C:92: time is 1127
> > > Debug: in fn void runRubyEventQueue(conf_object_t*, lang_void*) in
> > > simics/interface.C:92: time is 1128
> > > Debug: in fn void runRubyEventQueue(conf_object_t*, lang_void*) in
> > > simics/interface.C:92: time is 1129
> > > ...
> > > Debug: in fn void runRubyEventQueue(conf_object_t*, lang_void*) in
> > > simics/interface.C:92: time is 499999
> > > Debug: in fn void runRubyEventQueue(conf_object_t*, lang_void*) in
> > > simics/interface.C:92: time is 500000
> > > Debug: in fn void runRubyEventQueue(conf_object_t*, lang_void*) in
> > > simics/interface.C:92: time is 500001
> > > Debug: in fn void EventQueue::triggerEvents(Time) in
> > > eventqueue/EventQueue.C:119: *(thisNode.m_consumer_ptr) is [Sequencer: 10,
> > > outstanding requests: 1, re
> > > ad request table: [ [0x18ab580, line 0x18ab580]=[CacheMsg: Address=[0x18ab5a0,
> > > line 0x18ab580] Type=LD ProgramCounter=[0x10047198, line 0x10047180] AccessM
> > > ode=SupervisorMode Size=8 Prefetch=No Version=0 Aborted=0 Time=1 ] ], write
> > > request table: [ ]]
> > > Debug: in fn void EventQueue::triggerEvents(Time) in
> > > eventqueue/EventQueue.C:120: thisNode.m_time is 500001
> > > Warning: in fn virtual void Sequencer::wakeup() in system/Sequencer.C:103:
> > > Possible Deadlock detected
> > > Warning: in fn virtual void Sequencer::wakeup() in system/Sequencer.C:104:
> > > request is [CacheMsg: Address=[0x18ab5a0, line 0x18ab580] Type=LD
> ProgramCounter
> > > =[0x10047198, line 0x10047180] AccessMode=SupervisorMode Size=8 Prefetch=No
> > > Version=0 Aborted=0 Time=1 ]
> > > Warning: in fn virtual void Sequencer::wakeup() in system/Sequencer.C:105:
> > > m_chip_ptr->getID() is 10
> > > Warning: in fn virtual void Sequencer::wakeup() in system/Sequencer.C:106:
> > > m_version is 0
> > > Warning: in fn virtual void Sequencer::wakeup() in system/Sequencer.C:107:
> > > keys.size() is 1
> > > Warning: in fn virtual void Sequencer::wakeup() in system/Sequencer.C:108:
> > > current_time is 500001
> > > Warning: in fn virtual void Sequencer::wakeup() in system/Sequencer.C:109:
> > > request.getTime() is 1
> > > Warning: in fn virtual void Sequencer::wakeup() in system/Sequencer.C:110:
> > > current_time - request.getTime() is 500000
> > > Warning: in fn virtual void Sequencer::wakeup() in system/Sequencer.C:111:
> > > *m_readRequestTable_ptr is [ [0x18ab580, line 0x18ab580]=[CacheMsg:
> Address=[0x1
> > > 8ab5a0, line 0x18ab580] Type=LD ProgramCounter=[0x10047198, line 0x10047180]
> > > AccessMode=SupervisorMode Size=8 Prefetch=No Version=0 Aborted=0 Time=1 ] ]
> > > Warning: in fn virtual void Sequencer::wakeup() in system/Sequencer.C:112:
> i is 0
> > > Warning: in fn virtual void Sequencer::wakeup() in system/Sequencer.C:113:
> > > keys.size() is 1
> > > Fatal Error: in fn virtual void Sequencer::wakeup() in system/Sequencer.C:114:
> > > Aborting
> > >
> > > Can anyone help me what can make simulator wait for that long?
> > >
> > > Thanks,
> > > Shachar Gang
> > >
> > >
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