The page fault you're seeing below is what you would see on a normal system as a segmentation fault. You're likely referencing a null pointer plus some offset. You need to look at a trace of the instructions and memory system, see how that address is generated and assuming it's the problem I mentioned, why a previous write disappeared or got lost in your cache modifications.
Thanks, Ali On 07.05.2014 09:27, jiakunli2010 via gem5-users wrote: > Hello All! > > I am running SPEC2006 (4 workloads on 4-core) using gem5 classic memory, > timing cpu model. The error message are pasted below. > > However, when I applied one workload to the same 4-core system, I got no > errors for any of the four workloads. The system could also run some other > mixes of SPEC2006 workloads and the "Hello world!" example. I searched the > debug file but did not find any clues. > > I made considerable modification to the source code of cache system, I > suppose it was bugs there. > > Does anyone have any idea about where the errors may come from or any > suggestion on the debugging method? > > ============================ > > info: Increaseing stack size by one page. > > info: Increaseing stack size by one page. > > Warning line 7126: Column "C918" for row "R10193" ignored > > Warning line 7189: Column "C932" for row "1." ignored > > Warning line 7834: Column "C1084" for row "8" ignored > > info: Increaseing stack size by one page. > > Warning line 8824: Column "C1306" for row "1." ignored > > Warning line 8827: Column "C1306" for row "0" ignored > > Syntax error in line 8829 > > panic: Page table fault when accessing virtual address 0x98 > > @ cycle 32812561593 > > [invoke: build/ARM/sim/faults.cc, line 70] > > Memory Usage: 2884000 KBytes > > ======================== > > jiakunli2010，jiakunli2...@gmail.com > > 2014/5/7 > > _______________________________________________ > gem5-users mailing list > gem5-users@gem5.org > http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users [1] Links: ------ [1] http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users
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