Hi guys!
My gem5 version is 96fce476785a834f102ae69a895e661cf08e47cd which clone
from GitHub.
I am trying to run a muti-thread program in se mode. But I encountered
a bug.
My program is simple:
"
void f1()
{
char a[64];
printf("hello\n");
}
int main()
{
std::thread threads[2]; // t1 is not a thread
for(int i=0;i<2;i++)
threads[i] = std::thread(f1);
for (auto& t: threads) {
t.join();
}
}
“
My run cmd is
./build/X86/gem5.opt configs/example/se.py -c
/home/ubuntu/taiyu/test_app/thread_t --mem-size=8GB --cpu-type=DerivO3CPU
--caches --l2cache -n 3”
And the gem5 will report :
warn: ignoring syscall set_robust_list(...)
warn: ignoring syscall mprotect(...)
hello
hello
panic: panic condition !clobber occurred: EmulationPageTable::allocate: addr
0x7ffff7471000 already mapped
Memory Usage: 8642200 KBytes
Program aborted at tick 1411052000
--- BEGIN LIBC BACKTRACE ---
./build/X86/gem5.opt(_Z15print_backtracev+0x28)[0xa977b8]
./build/X86/gem5.opt(_Z12abortHandleri+0x46)[0xaa8ab6]
/lib/x86_64-linux-gnu/libpthread.so.0(+0x11390)[0x7f46d3bad390]
/lib/x86_64-linux-gnu/libc.so.6(gsignal+0x38)[0x7f46d2552428]
/lib/x86_64-linux-gnu/libc.so.6(abort+0x16a)[0x7f46d255402a]
./build/X86/gem5.opt[0x807e0f]
./build/X86/gem5.opt(_ZN18EmulationPageTable3mapEmmlm+0x93c)[0xa230cc]
./build/X86/gem5.opt(_ZN8MemState10fixupFaultEm+0xd8)[0xaf1518]
./build/X86/gem5.opt(_ZN6X86ISA9PageFault6invokeEP13ThreadContextRK14RefCountingPtrI10StaticInstE+0xf8)[0x11d4a58]
./build/X86/gem5.opt(_ZN13DefaultCommitI9O3CPUImplE10commitHeadERK14RefCountingPtrI13BaseO3DynInstIS0_EEj+0x9a7)[0xc87ba7]
./build/X86/gem5.opt(_ZN13DefaultCommitI9O3CPUImplE11commitInstsEv+0x637)[0xc88907]
./build/X86/gem5.opt(_ZN13DefaultCommitI9O3CPUImplE6commitEv+0xc70)[0xc8b070]
./build/X86/gem5.opt(_ZN13DefaultCommitI9O3CPUImplE4tickEv+0xc8)[0xc8bd88]
./build/X86/gem5.opt(_ZN9FullO3CPUI9O3CPUImplE4tickEv+0x155)[0xc9d935]
./build/X86/gem5.opt(_ZN10EventQueue10serviceOneEv+0x9d)[0xa9f84d]
./build/X86/gem5.opt(_Z9doSimLoopP10EventQueue+0x7b)[0xac1a6b]
./build/X86/gem5.opt(_Z8simulatem+0xc2a)[0xac2a0a]
./build/X86/gem5.opt[0x17f8671]
./build/X86/gem5.opt[0xb14faa]
/usr/lib/x86_64-linux-gnu/libpython2.7.so.1.0(PyEval_EvalFrameEx+0x7852)[0x7f46d3e6a7b2]
/usr/lib/x86_64-linux-gnu/libpython2.7.so.1.0(PyEval_EvalCodeEx+0x85c)[0x7f46d3fa111c]
/usr/lib/x86_64-linux-gnu/libpython2.7.so.1.0(PyEval_EvalFrameEx+0x6ffd)[0x7f46d3e69f5d]
/usr/lib/x86_64-linux-gnu/libpython2.7.so.1.0(PyEval_EvalCodeEx+0x85c)[0x7f46d3fa111c]
/usr/lib/x86_64-linux-gnu/libpython2.7.so.1.0(PyEval_EvalFrameEx+0x6ffd)[0x7f46d3e69f5d]
/usr/lib/x86_64-linux-gnu/libpython2.7.so.1.0(PyEval_EvalCodeEx+0x85c)[0x7f46d3fa111c]
/usr/lib/x86_64-linux-gnu/libpython2.7.so.1.0(PyEval_EvalFrameEx+0x6ffd)[0x7f46d3e69f5d]
/usr/lib/x86_64-linux-gnu/libpython2.7.so.1.0(PyEval_EvalCodeEx+0x85c)[0x7f46d3fa111c]
/usr/lib/x86_64-linux-gnu/libpython2.7.so.1.0(PyEval_EvalCode+0x19)[0x7f46d3e62de9]
/usr/lib/x86_64-linux-gnu/libpython2.7.so.1.0(PyEval_EvalFrameEx+0x613b)[0x7f46d3e6909b]
/usr/lib/x86_64-linux-gnu/libpython2.7.so.1.0(PyEval_EvalCodeEx+0x85c)[0x7f46d3fa111c]
/usr/lib/x86_64-linux-gnu/libpython2.7.so.1.0(PyEval_EvalFrameEx+0x6ffd)[0x7f46d3e69f5d]
/usr/lib/x86_64-linux-gnu/libpython2.7.so.1.0(PyEval_EvalCodeEx+0x85c)[0x7f46d3fa111c]
--- END LIBC BACKTRACE —
This problem will not occur in an older version which I clone from GitHub in
March. It is work in the older version.
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