Re: [Gems-users] Fatal Error: in fn virtual void Sequencer::wakeup() in system/Sequencer.C:112: Aborting

[Jayaram Bobba <bobba@xxxxxxxxxxx>]

Mark,

You might have to increase the g_DEADLOCK_THRESHOLD to a larger value. 
It is possible that the LD_XACT is stalled on a long running
transaction. Try 'ruby0.setparam g_DEADLOCK_THRESHOLD 20000000' before 
you start the simulation...
Jayaram

Mark Gebhart wrote:
> Hi,
>
>  
>
> I am trying to run a LogTM program using Simics 3.0.22 and GEMS 1.3 
> and the abisko-common target script with Solaris 10.  I have tried 
> both MOESI_SMP_LogTM_directory and MESI_SMP_LogTM_directory.  Things 
> work fine with 1 thread but as soon as I go to 2 threads I get the 
> following warnings followed by a fatal error:
>  
>
> 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:103: Possible Deadlock detected
> Warning: in fn virtual void Sequencer::wakeup() in 
> system/Sequencer.C:104: request is [CacheMsg: Address=[0xed2202c, line 
> 0xed22000] Type=LD_XACT ProgramCounter=[0xff237c74, line 0xff237c40] 
> AccessMode=UserMode Size=2 Prefetch=No Version=0 Aborted=0 Time=34944882 ]
> Warning: in fn virtual void Sequencer::wakeup() in 
> system/Sequencer.C:104: request is [CacheMsg: Address=[0xed2202c, line 
> 0xed22000] Type=LD_XACT ProgramCounter=[0xff237c74, line 0xff237c40] 
> AccessMode=UserMode Size=2 Prefetch=No Version=0 Aborted=0 Time=34944882 ]
> Warning: in fn virtual void Sequencer::wakeup() in 
> system/Sequencer.C:105: m_chip_ptr->getID() is 7
> Warning: in fn virtual void Sequencer::wakeup() in 
> system/Sequencer.C:105: m_chip_ptr->getID() is 7
> 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: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:107: keys.size() is 1
> Warning: in fn virtual void Sequencer::wakeup() in 
> system/Sequencer.C:108: current_time is 34995936
> Warning: in fn virtual void Sequencer::wakeup() in 
> system/Sequencer.C:108: current_time is 34995936
> Warning: in fn virtual void Sequencer::wakeup() in 
> system/Sequencer.C:109: request.getTime() is 34944882
> Warning: in fn virtual void Sequencer::wakeup() in 
> system/Sequencer.C:109: request.getTime() is 34944882
> Warning: in fn virtual void Sequencer::wakeup() in 
> system/Sequencer.C:110: current_time - request.getTime() is 51054
> Warning: in fn virtual void Sequencer::wakeup() in 
> system/Sequencer.C:110: current_time - request.getTime() is 51054
> Warning: in fn virtual void Sequencer::wakeup() in 
> system/Sequencer.C:111: *m_readRequestTable_ptr is [ [0xed22000, line 
> 0xed22000]=[CacheMsg: Address=[0xed2202c, line 0xed22000] Type=LD_XACT 
> ProgramCounter=[0xff237c74, line 0xff237c40] AccessMode=UserMode 
> Size=2 Prefetch=No Version=0 Aborted=0 Time=34944882 ] ]
> Warning: in fn virtual void Sequencer::wakeup() in 
> system/Sequencer.C:111: *m_readRequestTable_ptr is [ [0xed22000, line 
> 0xed22000]=[CacheMsg: Address=[0xed2202c, line 0xed22000] Type=LD_XACT 
> ProgramCounter=[0xff237c74, line 0xff237c40] AccessMode=UserMode 
> Size=2 Prefetch=No Version=0 Aborted=0 Time=34944882 ] ]
> Fatal Error: in fn virtual void Sequencer::wakeup() in 
> system/Sequencer.C:112: Aborting
> Fatal Error: in fn virtual void Sequencer::wakeup() in 
> system/Sequencer.C:112: Aborting
> Abort (SIGABRT) in main thread
>
> The simulation state has been corrupted. Simulation cannot continue.
>
> Please restart Simics.
>
>  
>
> What can I do to prevent this deadlock from occurring?  My program 
> consists of a main loop with a BEGIN_TRANSACATION(0) followed by a 
> call to a work function followed by an COMMIT_TRANSACTION(0).
>  
>
> Any advice would be greatly appreciated.
>
>  
>
> Thanks,
>
> Mark
>
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