Hi Andreas,

Thanks for the answer. I will look into debugging it.

Regards,
Urmish
On 01/03/15 08:40, Andreas Hansson via gem5-users wrote:
Hi Urmish,

The panic is simply a sanity check I put in place in the port to ensure
that we do not unintentionally introduce buffers where there should not be
any.

In this case it seems there are a lot of packets building up in the cache,
waiting to be sent to the LSQ (either responses, or snoop requests). I am
not quite sure what is regulating the rate of these packets being sent to
the core (I would think one per cycle), so it would be good if you could
run with a few debug flags to iron out what is happening. PacketQueue,
Cache, LSQ, LSQUnit is probably a good start.

Thanks,

Andreas

On 02/01/2015 22:05, "Urmish Ajit Thakker via gem5-dev"
<[email protected]> wrote:

Hi,

I was experimenting with the impact of Lq/SQ size on performance. When I
changed the LQ/SQ Size to 128 I get the following error -

panic: Packet queue system.cpu.dcache.cpu_side-CpuSidePort has grown
beyond 100 packets
  @ tick 2920099746500
[schedSendTiming:build/ARM/mem/packet_queue.cc, line 121]

Could someone help we understand this error?

Regards,
Urmish
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