Hi Sharjeel, What linux distribution are you using with the new kernel you compiled ? I suggest you to check that your linux distribution is compatible with Kernel v4.4.
Yasir From: gem5-users [mailto:[email protected]] On Behalf Of SHARJEEL KHILJI Sent: 22 February 2017 12:08 To: gem5 users mailing list <[email protected]> Subject: Re: [gem5-users] Linux booting problem in ARM NOC Hi, I found that problem was with Linux kernel. I get a panic in kernel while booting for single core at the end. I get no init found. ./build/ARM/gem5.fast configs/example/fs.py --machine-type=VExpress_GEM5_V1 --kernel /home/khilji/gem5/m5/system/binaries/vmlinux --disk-image /home/khilji/gem5/m5/system/disks/linux-aarch32-ael.img --dtb-filename /home/khilji/gem5/m5/system/dtb/armv7_gem5_v1_1cpu.dtb --num-cpus=1 --cpu-type=timing --mem-size=1GB --num-dirs=1 I am using the latest kernel at following link v4.4 https://github.com/gem5/linux-arm-gem5/commits/gem5/v4.4<https://github.com/gem5/linux-arm-gem5/commits/gem5/v4.3> I am compiling it with following make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- gem5_defconfig make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- -j4 I think that default configurations are not working. This kernel has support for VExpress_GEM5_V1 platform. Kindly, if you can guide me about which configurations to use. best regards, sharjeel On 21 February 2017 at 20:32, Jason Lowe-Power <[email protected]<mailto:[email protected]>> wrote: Hi Sharjeel, I think you've found another case where ARM isn't supported in Ruby. I would *guess* this is a problem with some kind of atomic/memory ordering operation. I would try simplifying your simulated system and building up until you find the problem. For instance, start with 1 core and make sure Linux boots. Then, two cores, etc. You may also want to try simpler topologies (e.g., Pt2Pt or crossbar) and using only a single directory. This could also be a problem with the memory ranges. Ruby only supports a single range with no gaps. I don't know what the ARM systems use. Jason On Tue, Feb 21, 2017 at 3:54 AM SHARJEEL KHILJI <[email protected]<mailto:[email protected]>> wrote: Hi, I am trying to boot linuxv4.4 on ARM NOC. The booting process gets stuck and same set of instruction is executed again and again. Following is the set of instructions. ./build/ARM/gem5.debug --debug-flags= Exec,ExecTicks configs/example/fs.py --machine-type=VExpress_GEM5_V1 --kernel /home/khilji/gem5/m5/system/binaries/vmlinux-aarch32 --disk-image /home/khilji/gem5/m5/system/disks/linux-aarch32-ael.img --dtb-filename /home/khilji/gem5/m5/system/dtb/armv7_gem5_v1_4cpu.dtb --num-cpus=4 --cpu-type=timing --mem-size=512MB --ruby --num-dirs=2 --garnet-network flexible --topology Mesh --mesh-rows 2 --numa-high-bit=28 Following instructions are show in the terminal 370581084500: system.cpu0 T0 : @smp_call_function_many+592 : dmb #0 : IntAlu : 370581085500: system.cpu0 T0 : @smp_call_function_many+596 : tsts r3, #1 : IntAlu : D=0x0000000000000000 370581086500: system.cpu0 T0 : @smp_call_function_many+600 : bne : IntAlu : 370581087500: system.cpu0 T0 : @smp_call_function_many+588 : ldr r3, [r1, #12] : MemRead : D=0x0000000000000003 A=0x9eb4c Looks like a sort of deadlock. Any suggestions please, if anyone can give in this matter. best regards, sharjeel _______________________________________________ gem5-users mailing list [email protected]<mailto:[email protected]> http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users _______________________________________________ gem5-users mailing list [email protected]<mailto:[email protected]> http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users
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