Hi Steve, I am trying to bisect the elf_object.cc file but it seems the error is not at that file.
I have figured from elf_object.cc file that from the statements at line # 160: * data = elf_rawdata(section, NULL);* * assert(data->d_buf);* (1) M5 from the repository: the value of data is: *0x1281e020* (2) M5-2.0b6: the value of data is: *0xa7d9e40* When the data is "0xa7d9e40" the M5 doesn't produce any errors but when the data is 0x1281e020 M5 produces the 'segmenation fault error'. I am not able to understand why the value of data differs in the two versions of M5 and I think thats the reason of the segmentation fault. The backstrace is: [ashuto...@leif cpu2006]$ *gdb /home/ashutoshj/newm5/build/ALPHA_SE/m5.debug * GNU gdb Fedora (6.8-37.el5) Copyright (C) 2008 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html > This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Type "show copying" and "show warranty" for details. This GDB was configured as "x86_64-redhat-linux-gnu"... *(gdb) run cmp.py* Starting program: /home/ashutoshj/newm5/build/ALPHA_SE/m5.debug cmp.py [Thread debugging using libthread_db enabled] [New Thread 0x2b7d4edce940 (LWP 8181)] M5 Simulator System Copyright (c) 2001-2008 The Regents of The University of Michigan All Rights Reserved M5 compiled Mar 24 2010 12:14:12 M5 revision 79463f723460+ 6018+ default tip M5 started May 10 2010 21:13:33 M5 executing on leif.cs.lamar.edu command line: /home/ashutoshj/newm5/build/ALPHA_SE/m5.debug cmp.py max_insts_all_threads = 10000 milc() soplex() gcc() hmmer() num of cpus = 4 num threads per cpu = 1 system.cpu[0].workload = Mybench.milc() system.cpu[1].workload = Mybench.soplex() system.cpu[2].workload = Mybench.gcc() system.cpu[3].workload = Mybench.hmmer() no. of cores: 4 Global frequency set at 1000000000000 ticks per second Program received signal SIGSEGV, Segmentation fault. 0x00000000006b3f5b in ElfObject::tryFile (fna...@0x7ffffbd12730, fd=7, len=5438489, data=0x2b7e9372a000 "\177ELF\002\001\001") at build/ALPHA_SE/base/loader/elf_object.cc:161 -- Ashutosh Jain
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