Thanks Neal,

I'll take that into account and change everything to 8 cores max and see if
it will work, for now.



On Tue, Apr 29, 2014 at 10:07 PM, Neal Haas <[email protected]> wrote:

> The GIC in the gem5 source cannot support more than 8 CPUs. You would need
> GICv3 which has not yet been implemented. At least, that's what I think.
>
>
> On Tue, Apr 29, 2014 at 1:34 PM, Embedded Systems MadHatter <
> [email protected]> wrote:
>
>> Hello,
>>
>>  I'm trying to run a 12 cores ARM simulation, following are my
>> parameters, I had a segmentation fault at a Linux initially, but I changed
>> the kernel in
>> drivers/irqchip/irq-gic.c
>> and change the parameter
>>
>> #define NR_GIC_CPU_IF 8
>>
>> to
>>
>> #define NR_GIC_CPU_IF 32
>>
>> because I was having a BUG assertion due to its limitation (I believe, so
>> that is why I made the change).
>>
>>
>> After recompiling and regenerating DTS, added additional CPUs as
>> recommended in the documentation.
>>
>> Please someone could point the cause of the error and provide insights on
>> how to directions to fix it.
>>
>> error:
>>
>>
>> command line: ./build/ARM/gem5.fast configs/mine/fs.py
>> --disk-image=/opt/arm/gem5/armv8_system/disks/linaro-minimal-armv8.img
>> --kernel=/opt/arm/gem5/armv8_system/binaries/vmlinux-mine-aarch64-vexpress-emm64
>> --dtb-filename=/opt/vlsi/arm/gem5/armv8_system/binaries/rtsm_ve-aemv8a-mine.dtb
>> --machine-type=VExpress_EMM64 --caches --l2cache --l1d_size=32kB
>> --l1i_size=32kB --l2_size=256kB --l3_size=20MB --l1d_assoc=4 --l1i_assoc=4
>> --l2_assoc=8 --l3_assoc=16 --cacheline_size=64 -n 12 --sys-clock=2.0GHz
>> --cpu-clock=2.0GHz --mem-type=DDR3_1600_x64
>> Global frequency set at 1000000000000 ticks per second
>> info: kernel located at:
>> /opt/arm/gem5/armv8_system/binaries/vmlinux-mine-aarch64-vexpress-emm64
>> warn: Highest ARM exception-level set to AArch32 but bootloader is for
>> AArch64. Assuming you wanted these to match.
>> Listening for system connection on port 5901
>> Listening for system connection on port 3456
>> 0: system.remote_gdb.listener: listening for remote gdb on port 7000
>> 0: system.remote_gdb.listener: listening for remote gdb on port 7001
>> 0: system.remote_gdb.listener: listening for remote gdb on port 7002
>> 0: system.remote_gdb.listener: listening for remote gdb on port 7003
>> 0: system.remote_gdb.listener: listening for remote gdb on port 7004
>> 0: system.remote_gdb.listener: listening for remote gdb on port 7005
>> 0: system.remote_gdb.listener: listening for remote gdb on port 7006
>> 0: system.remote_gdb.listener: listening for remote gdb on port 7007
>> 0: system.remote_gdb.listener: listening for remote gdb on port 7008
>> 0: system.remote_gdb.listener: listening for remote gdb on port 7009
>> 0: system.remote_gdb.listener: listening for remote gdb on port 7010
>> 0: system.remote_gdb.listener: listening for remote gdb on port 7011
>> info: Using bootloader at address 0x10
>> info: Using kernel entry physical address at 0x80080040
>> info: Loading DTB file:
>> /opt/arm/gem5/armv8_system/binaries/rtsm_ve-aemv8a-mine.dtb at address
>> 0x88000000
>> **** REAL SIMULATION ****
>> info: Entering event queue @ 0.  Starting simulation...
>> warn: SCReg: Writing 0 to dcc0:site0:pos0:fn7:dev0
>> panic: event not found!
>>  @ tick 56582624
>> [remove:build/ARM/sim/eventq.cc, line 195]
>> Memory Usage: 56582624 KBytes
>> Program aborted at cycle 826043850000
>> Aborted (core dumped)
>>
>>
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>
>
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