Sunitha,
You must have broken the coherence protocol in some way with you're change. 
Comparing a Exec trace before and after your change may give you some idea, 
depending on if the mp workload diverges or not. Otherwise you're either going 
to have to create a small program that tests your code and triggers a bug or 
back-trace from where, "DECthreads bugcheck (version V3.18-037), terminating 
execution." is printed to find what is triggering that assert and figure out 
what is going wrong with your change. I don't really know what you're doing but 
it's likely you're invaliding a block that was never written back to memory or 
something similar so there is invalid data in the system. 

Ali



On Feb 27, 2011, at 12:36 PM, sunitha p wrote:

> I am invalidating a victim block taken for replacement in L2 in L1.
> 
> Have added a new command  Requestinvalidate with - IsRead, IsRequest, 
> Hasdata, Is Invalidate ---- as attributes...
> 
> As soon as a victim block of L2 is found, a new packet is created with the 
> RequestInvalidate command and broadcasted along systemtoL2 bus 
> throughcpusideport....
> 
> Its working fine with invalidation.....and resumes the work to be done on 
> victim block...
> 
> but after some ticks am getting the error as 
> 
> 0: system.remote_gdb.listener: listening for remote gdb #0 on port 7000
> 0: system.remote_gdb.listener: listening for remote gdb #1 on port 7001
> %DECthreads bugcheck (version V3.18-037), terminating execution.
> % Reason:  muInit: can't preallocate mutex 119 of 200
> % Running on  (732) on COMPAQ Professional Workstation , 1024Mb; 2 CPUs, pid 
> 100
> warn: ignoring syscall sigaction(4831387048, 6, ...)
> For more information see: http://www.m5sim.org/warn/5c5b547f
> warn: ignoring syscall sigprocmask(32, 2, ...)
> For more information see: http://www.m5sim.org/warn/5c5b547f
> fatal: syscall nxm_thread_kill (#-38) unimplemented.
>  @ cycle 648971000
> [unimplementedFunc:build/ALPHA_SE/sim/syscall_emul.cc, line 82]
> Memory Usage: 157824 KBytes
> For more information see: http://www.m5sim.org/fatal/be2b42f
> 
> 
> can anyone help me out as to why and what is this error for...?
> 
> 
> Thanks & regards
> 
> -- 
> Sunitha.P
> 9092892876
> 
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