Hi Steve, I am running x96 SE mode. The writeBlob() works fine for very small test application. For real benchmark with 1GB working set, the simulation ends with exception:
panic: Tried to read unmapped address 0x2800000002d773b0. 0x2aaaaaaab000ULL @ tick 771687885000 [invoke:build/X86/arch/x86/faults.cc, line 160] Memory Usage: 11788528 KBytes Program aborted at tick 771687885000 Any ideas why 0x2800 range is getting problems by writeBlob? Thanks. On 7 October 2014 15:20, Steve Reinhardt <ste...@gmail.com> wrote: > We have a patch internally that implements more of mmap(), but > unfortunately it's not quite ready to post. > > If you just want to do a read mapping (you don't care if writes to the > mmap'd region get written back to disk), and you don't mind just reading > the whole mmap region in up front (which you need to do, since SE mode > doesn't support page faulting), it's not too hard; just call > p->allocateMem() to allocate the memory in the simulated process, and then > read the data out of the file and use writeBlob() to copy it into the > memory you just allocated. > > Steve > > On Tue, Oct 7, 2014 at 6:14 AM, Ahmad Hassan via gem5-users < > gem5-users@gem5.org> wrote: > >> Hi, >> >> The existing implementation in GEM5 SE mode only supports MMAP to >> /dev/zero. Has anyone implemented MMAP in gem5 that can map a file from the >> disk? If not, how can I extend this? >> >> Regards, >> >> _______________________________________________ >> gem5-users mailing list >> gem5-users@gem5.org >> http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users >> > >
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