Ok.
For one application, the gdb backtrace shows
#0 0x00007ffff63f9a75 in *__GI_raise (sig=<value optimized out>)
at ../nptl/sysdeps/unix/sysv/linux/raise.c:64
#1 0x00007ffff63fd5c0 in *__GI_abort () at abort.c:92
#2 0x0000000000c7ce15 in __exit_message (prefix=<value optimized out>,
code=-1,
func=<value optimized out>, file=<value optimized out>, line=292,
fmt=<value optimized out>,
a01=..., a02=..., a03=..., a04=..., a05=..., a06=..., a07=..., a08=...,
a09=..., a10=...,
a11=..., a12=..., a13=..., a14=..., a15=..., a16=...) at
build/X86_SE/base/misc.cc:84
#3 0x00000000006e3569 in X86ISA::PageFault::invoke (this=<value optimized
out>,
tc=<value optimized out>, inst=<value optimized out>) at
build/X86_SE/arch/x86/faults.cc:292
#4 0x0000000000e9b229 in BaseSimpleCPU::advancePC (this=0x1ea7720,
fault=<value optimized out>)
at build/X86_SE/cpu/simple/base.cc:498
#5 0x0000000000e8d224 in AtomicSimpleCPU::tick (this=0x1ea7720)
at build/X86_SE/cpu/simple/atomic.cc:592
#6 0x0000000000676154 in EventQueue::serviceOne (this=<value optimized
out>)
at build/X86_SE/sim/eventq.cc:204
#7 0x00000000006bfbd2 in simulate (num_cycles=50000000000) at
build/X86_SE/sim/simulate.cc:73
#8 0x00000000004392ad in _wrap_simulate__SWIG_0 (self=<value optimized
out>, args=0x1c84690)
at build/X86_SE/python/swig/event_wrap.cc:4447
#9 _wrap_simulate (self=<value optimized out>, args=0x1c84690)
at build/X86_SE/python/swig/event_wrap.cc:4497
and the ExecAll flag shows:
41956000: system.cpu + A0 T0 : @_ZN9regmngobj13findfreeplaceEiiRiS0_+491.0
: ADD_R_R : add esi, esi, r13d : IntAlu : D=0x0000000000000064
41958000: system.cpu + A0 T0 : @_ZN9regmngobj13findfreeplaceEiiRiS0_+494
: movsxd rsi, rsi
41958000: system.cpu + A0 T0 : @_ZN9regmngobj13findfreeplaceEiiRiS0_+494.0
: MOVSXD_R_R : sexti rsi, rsi, 0x1f : IntAlu : D=0x0000000000000000
41959000: system.cpu + A0 T0 : @_ZN9regmngobj13findfreeplaceEiiRiS0_+497
: movzx ecx, DS:[2*rsi + rcx]
41959000: system.cpu + A0 T0 : @_ZN9regmngobj13findfreeplaceEiiRiS0_+497.0
: MOVZX_W_R_M : ld t1w, DS:[2*rsi + rcx] : MemRead : A=0x0
panic: Tried to read unmapped address 0.
@ cycle 41959000
--
// Naderan *Mahmood;
On Tue, Nov 29, 2011 at 11:39 PM, Gabriel Michael Black <
[email protected]> wrote:
> It means your program segfaulted, basically. There could be many different
> causes. You'll have to debug it to find out what's going on.
>
> Gabe
>
>
> Quoting Mahmood Naderan <[email protected]>:
>
> I get this error for some other benchmarks for some other addresses.
>> Can someone clarify what does this annoying error mean?
>>
>> What is the root?
>> --
>> // Naderan *Mahmood;
>>
>>
>> On Thu, Nov 24, 2011 at 5:37 PM, Mahmood Naderan <[email protected]
>> >wrote:
>>
>> The same error appears when I try to resume from a checkpoint.
>>>
>>> 986885000: system.cpu T0 : @memcpy+121.1 : JNZ_I : limm t2,
>>> 0xffffffffffffffe5 : IntAlu : D=0xffffffffffffffe5
>>> 986886000: system.cpu T0 : @memcpy+121.2 : JNZ_I : wrip , t1, t2
>>> : IntAlu :
>>> 986887000: system.cpu T0 : @memcpy+123.0 : RET_NEAR : ld t1,
>>> SS:[rsp] : MemRead : D=0x0000000000000000 A=0x7fffffffebf8
>>> 986888000: system.cpu T0 : @memcpy+123.1 : RET_NEAR : addi rsp,
>>> rsp, 0x8 : IntAlu : D=0x00007fffffffec00
>>> 986889000: system.cpu T0 : @memcpy+123.2 : RET_NEAR : wripi , t1,
>>> 0 : IntAlu :
>>> panic: Tried to execute unmapped address 0.
>>> @ cycle 986890000
>>> [invoke:build/X86_SE/arch/x86/**faults.cc, line 292]
>>>
>>>
>>>
>>> looking for any suggestion.
>>> regards,
>>>
>>> On 11/12/11, Mahmood Naderan <[email protected]> wrote:
>>> > Dear all,
>>> > With X86_SE is in fast forward mode, I get this error:
>>> >
>>> > panic: Tried to read unmapped address 0.
>>> > @ cycle 44265000
>>> > [invoke:build/X86_SE/arch/x86/**faults.cc, line 292]
>>> >
>>> >
>>> > turnning on the debugger with:
>>> > build/X86_SE/m5.debug --debug-flags=Exec ....
>>> >
>>> > The trace shows:
>>> > 44250000: system.switch_cpus T0 :
>>> > @_**ZN9regmngobj13findfreeplaceEii**RiS0_+472.0 : JNLE_I : rdip
>>> t1,
>>> > %ctrl153, : IntAlu : D=0x000000000040251e
>>> >
>>> > 44251000: system.switch_cpus T0 :
>>> > @_**ZN9regmngobj13findfreeplaceEii**RiS0_+472.1 : JNLE_I : limm
>>> t2,
>>> > 0xfffffffffffffed2 : IntAlu : D=0xfffffffffffffed2
>>> >
>>> > 44251000: system.switch_cpus T0 :
>>> > @_**ZN9regmngobj13findfreeplaceEii**RiS0_+472.2 : JNLE_I : wrip
>>> , t1,
>>> > t2 : IntAlu :
>>> >
>>> > 44251000: system.switch_cpus T0 :
>>> > @_**ZN9regmngobj13findfreeplaceEii**RiS0_+478.0 : MOV_R_M : ld
>>> esi,
>>> > DS:[rbx + 0x14c] : MemRead : D=0x0000000000000000 A=0x6c10cc
>>> >
>>> > 44251000: system.switch_cpus T0 :
>>> > @_**ZN9regmngobj13findfreeplaceEii**RiS0_+484.0 : MOV_R_M : ld
>>> rcx,
>>> > DS:[rbx] : MemRead : D=0x0000000000000000 A=0x6c0f80
>>> >
>>> > 44251000: system.switch_cpus T0 :
>>> > @_**ZN9regmngobj13findfreeplaceEii**RiS0_+487.0 : IMUL_R_R : mul1s
>>> > t17d, esi, r12d : IntAlu : D=0x0000000000000064
>>> >
>>> > 44251000: system.switch_cpus T0 :
>>> > @_**ZN9regmngobj13findfreeplaceEii**RiS0_+487.1 : IMUL_R_R : mulel
>>> > esi, t17d, : IntAlu : D=0x0000000000000000
>>> >
>>> > 44251000: system.switch_cpus T0 :
>>> > @_**ZN9regmngobj13findfreeplaceEii**RiS0_+487.2 : IMUL_R_R : muleh
>>> > t0d, t18d, : IntAlu : D=0x0000000000000000
>>> >
>>> > 44251000: system.switch_cpus T0 :
>>> > @_**ZN9regmngobj13findfreeplaceEii**RiS0_+491.0 : ADD_R_R : add
>>> esi,
>>> > esi, r13d : IntAlu : D=0x0000000000000064
>>> >
>>> > 44252000: system.switch_cpus T0 :
>>> > @_**ZN9regmngobj13findfreeplaceEii**RiS0_+494.0 : MOVSXD_R_R :
>>> sexti
>>> > rsi, rsi, 0x1f : IntAlu : D=0x0000000000000000
>>> >
>>> > panic: Tried to read unmapped address 0.
>>> > @ cycle 44265000
>>> > [invoke:build/X86_SE/arch/x86/**faults.cc, line 292]
>>> >
>>> >
>>> > Can someone help to see what it the fault?
>>> >
>>> > --
>>> > // Naderan *Mahmood;
>>> >
>>>
>>>
>>> --
>>> --
>>> // Naderan *Mahmood;
>>>
>>>
>>
>
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