Hi Vitorio,

I don't know exactly what is the problem, but I can provide a setup that
just works which might help you to diff it out: https://github.com/
cirosantilli/linux-kernel-module-cheat/tree/e38a1dea9223bf4658384cbd93aaaa
e748d728de#gem5-getting-started (replace arm with x86_64)

My commands use X86/gem.out, but I've have just hacked up the scripts
locally to use X86_MOESI_AMD_Base like you and it this just worked:

./run -g -m 4G --  --mem-type=DDR4_2400_16x4 --mem-ranks=4 --caches
--l2cache --smt

Previously I had some similar failures on x86 (not sure exactly the same),
and they went away when I did the following:

- get latest gem5 master, that test repo is at 68af229 via a submodule:
https://github.com/cirosantilli/linux-kernel-module-cheat/tree/
e38a1dea9223bf4658384cbd93aaaae748d728de/gem5
- use this kernel config: https://github.com/cirosantilli/linux-kernel-
module-cheat/blob/e38a1dea9223bf4658384cbd93aaaa
e748d728de/kernel_config_x86_64-gem5

so maybe this is what you are missing.

This is the patch I referred to:

@@ -27,7 +27,7 @@ disks_dir="${system_dir}/disks"
 mkdir -p "$binaries_dir" "$disks_dir"
 cd "${top}/gem5"
 if [ "$arch" = x86_64 ]; then
-  scons -j "$j" --ignore-style build/X86/gem5.opt
+  scons -j "$j" --ignore-style build/X86_MOESI_AMD_Base/gem5.opt
   f="${disks_dir}/linux-bigswap2.img"
   dd if=/dev/zero of="$f" bs=1024 count=65536
   mkswap "$f"
--- a/run
+++ b/run
@@ -134,7 +134,7 @@ if "$gem5"; then
   gem5_common="\
 M5_PATH='${gem5_build_dir}/system' \
 ${debug_vm} \
-'${gem5_src_dir}/build/${gem5_arch}/gem5.opt' \
+'${gem5_src_dir}/build/X86_MOESI_AMD_Base/gem5.opt' \
 --debug-file=trace.txt \
 ${gem5opts} \
 -d '${m5out_dir}' \


On Wed, Apr 4, 2018 at 9:30 PM, Vitorio Cargnini (lcargnini) <
lcargn...@micron.com> wrote:

> Ok,
>
> Thanks Ciro, I'll look into that, besides that I built a Gentoo image, and
> currently, I'm facing another roadblock, for some reason booting the
> images, on x86 at least I didn’t attempt it on ARM yet, it is next on the
> agenda, once It achieves the following point:
> [    0.913616] ata1.01: configured for UDMA/33
> [    0.913702] scsi 0:0:0:0: Direct-Access     ATA      M5 IDE Disk
> n/a  PQ: 0 ANSI: 5
> [    0.914223] sd 0:0:0:0: [sda] 131072000 512-byte logical blocks: (67.1
> GB/62.5 GiB)
> [    0.914269] sd 0:0:0:0: [sda] Write Protect is off
> [    0.914302] sd 0:0:0:0: [sda] Write cache: disabled, read cache:
> enabled, doesn't support DPO or FUA
> [    0.914771] sd 0:0:0:0: Attached scsi generic sg0 type 0
> [    0.914862]  sda: sda1
> [    0.915256] sd 0:0:0:0: [sda] Attached SCSI disk
> [    0.917970] scsi 0:0:1:0: Direct-Access     ATA      M5 IDE Disk
> n/a  PQ: 0 ANSI: 5
> [    0.918339] sd 0:0:1:0: [sdb] 1048320 512-byte logical blocks: (537
> MB/512 MiB)
> [    0.918384] sd 0:0:1:0: [sdb] Write Protect is off
> [    0.918417] sd 0:0:1:0: [sdb] Write cache: disabled, read cache:
> enabled, doesn't support DPO or FUA
> [    0.918883] sd 0:0:1:0: Attached scsi generic sg1 type 0
> [    0.919251] sd 0:0:1:0: [sdb] Attached SCSI disk
>
> It breaks, I got the following error on gem5 console
>
>
> [1226:lcargnini@rndarch11/home/user/gem5]> ./build/X86_MOESI_AMD_Base/gem5.opt
>  configs/user/fs.py --caches --l2cache --smt 
> --disk-image=`pwd`/disks/user-gentoo-gem5.img
> --kernel=`pwd`/binaries/vmlinuX-4.9.76-gentoo-r1-user-gem5
> --mem-type=DDR4_2400_16x4 --mem-size=4GB --mem-ranks=4
> gem5 Simulator System.  http://gem5.org
> gem5 is copyrighted software; use the --copyright option for details.
>
> gem5 compiled Mar 26 2018 18:01:36
> gem5 started Apr  4 2018 13:26:40
> gem5 executing on rndarch11, pid 26274
> command line: ./build/X86_MOESI_AMD_Base/gem5.opt configs/user/fs.py
> --caches --l2cache --smt 
> --disk-image=/home/user/gem5/disks/user-gentoo-gem5.img
> --kernel=/home/user/gem5/binaries/vmlinuX-4.9.76-gentoo-r1-user-gem5
> --mem-type=DDR4_2400_16x4 --mem-size=4GB --mem-ranks=4
>
> warn: Physical memory size specified is 4GB which is greater than 3GB.
> Twice the number of memory controllers would be created.
> Global frequency set at 1000000000000 ticks per second
> warn: DRAM device capacity (65536 Mbytes) does not match the address range
> assigned (4096 Mbytes)
> warn: DRAM device capacity (65536 Mbytes) does not match the address range
> assigned (1024 Mbytes)
> info: kernel located at: /home/user/gem5/binaries/vmlin
> uX-4.9.76-gentoo-r1-user-gem5
> Listening for com_1 connection on port 3456
>       0: rtc: Real-time clock set to Sun Jan  1 00:00:00 2012
> 0: system.remote_gdb: listening for remote gdb on port 7000
> warn: Reading current count from inactive timer.
> **** REAL SIMULATION ****
> info: Entering event queue @ 0.  Starting simulation...
> warn: x86 cpuid family 0x0000: unimplemented function 6
> warn: x86 cpuid family 0x0000: unimplemented function 6
> warn: x86 cpuid family 0x0000: unimplemented function 6
> warn: instruction 'fninit' unimplemented
> warn: Don't know what interrupt to clear for console.
> 32407855000: system.pc.com_1.device: attach terminal 0
> warn: x86 cpuid family 0x0000: unimplemented function 6
> warn: x86 cpuid family 0x0000: unimplemented function 6
> warn: x86 cpuid family 0x0000: unimplemented function 6
> warn: Write to unknown i8042 (keyboard controller) command port.
> hack: Assuming logical destinations are 1 << id.
> warn: Tried to clear PCI interrupt 14
> panic: Resetting mouse wrap mode unimplemented.
> Memory Usage: 4866916 KBytes
> Program aborted at tick 1491323047000
> --- BEGIN LIBC BACKTRACE ---
> ./build/X86_MOESI_AMD_Base/gem5.opt(_Z15print_backtracev+0x19)[0xe4e5d9]
> ./build/X86_MOESI_AMD_Base/gem5.opt(_Z12abortHandleri+0x7f)[0xe5791f]
> /lib64/libpthread.so.0[0x342ae0f790]
> /lib64/libc.so.6(gsignal+0x35)[0x342a632625]
> /lib64/libc.so.6(abort+0x175)[0x342a633e05]
> ./build/X86_MOESI_AMD_Base/gem5.opt[0xbf719c]
> ./build/X86_MOESI_AMD_Base/gem5.opt[0x1787da4]
> ./build/X86_MOESI_AMD_Base/gem5.opt(_ZN6X86ISA5I80425writeEP
> 6Packet+0x34b)[0x178829b]
> ./build/X86_MOESI_AMD_Base/gem5.opt(_ZN7PioPort10recvAtomicE
> P6Packet+0x3d)[0x17a54cd]
> ./build/X86_MOESI_AMD_Base/gem5.opt(_ZN15NoncoherentXBar10re
> cvAtomicEP6Packets+0x1e3)[0xe0abc3]
> ./build/X86_MOESI_AMD_Base/gem5.opt(_ZN6Bridge15BridgeSlaveP
> ort10recvAtomicEP6Packet+0x2a)[0xdde97a]
> ./build/X86_MOESI_AMD_Base/gem5.opt(_ZN12CoherentXBar10recvA
> tomicEP6Packets+0x5d8)[0xde5738]
> ./build/X86_MOESI_AMD_Base/gem5.opt(_ZN5Cache10recvAtomicEP6
> Packet+0x51f)[0x17dc63f]
> ./build/X86_MOESI_AMD_Base/gem5.opt(_ZN12CoherentXBar10recvA
> tomicEP6Packets+0x5d8)[0xde5738]
> ./build/X86_MOESI_AMD_Base/gem5.opt(_ZN5Cache10recvAtomicEP6
> Packet+0x51f)[0x17dc63f]
> ./build/X86_MOESI_AMD_Base/gem5.opt(_ZN15AtomicSimpleCPU8wri
> teMemEPhjm5FlagsImEPm+0x443)[0x1791e33]
> ./build/X86_MOESI_AMD_Base/gem5.opt(_ZN17SimpleExecContext8w
> riteMemEPhjm5FlagsImEPm+0x21)[0x17a09c1]
> ./build/X86_MOESI_AMD_Base/gem5.opt(_ZNK10X86ISAInst2St7exec
> uteEP11ExecContextPN5Trace10InstRecordE+0x165)[0x170e1f5]
> ./build/X86_MOESI_AMD_Base/gem5.opt(_ZN15AtomicSimpleCPU4tic
> kEv+0x247)[0x1792547]
> ./build/X86_MOESI_AMD_Base/gem5.opt(_ZN10EventQueue10service
> OneEv+0x62)[0xe55042]
> ./build/X86_MOESI_AMD_Base/gem5.opt(_Z9doSimLoopP10EventQueu
> e+0x1a0)[0xe5e090]
> ./build/X86_MOESI_AMD_Base/gem5.opt(_Z8simulatem+0x349)[0xe5dcd9]
> ./build/X86_MOESI_AMD_Base/gem5.opt[0xce4df8]
> ./build/X86_MOESI_AMD_Base/gem5.opt[0xcb38a7]
> ../../common/software/el6/python-2.7.13/lib/libpython2.7.so.
> 1.0(PyEval_EvalFrameEx+0x8dd8)[0x7f4f631d5008]
> ../../common/software/el6/python-2.7.13/lib/libpython2.7.so.
> 1.0(PyEval_EvalCodeEx+0x830)[0x7f4f631d5ea0]
> ../../common/software/el6/python-2.7.13/lib/libpython2.7.so.
> 1.0(PyEval_EvalFrameEx+0x5aba)[0x7f4f631d1cea]
> ../../common/software/el6/python-2.7.13/lib/libpython2.7.so.
> 1.0(PyEval_EvalCodeEx+0x830)[0x7f4f631d5ea0]
> ../../common/software/el6/python-2.7.13/lib/libpython2.7.so.
> 1.0(PyEval_EvalFrameEx+0x5aba)[0x7f4f631d1cea]
> ../../common/software/el6/python-2.7.13/lib/libpython2.7.so.
> 1.0(PyEval_EvalCodeEx+0x830)[0x7f4f631d5ea0]
> ../../common/software/el6/python-2.7.13/lib/libpython2.7.so.
> 1.0(PyEval_EvalFrameEx+0x5aba)[0x7f4f631d1cea]
> ../../common/software/el6/python-2.7.13/lib/libpython2.7.so.
> 1.0(PyEval_EvalCodeEx+0x830)[0x7f4f631d5ea0]
> --- END LIBC BACKTRACE ---
> Aborted
>
>
> Any clue why this is happening?
>
> Regards,
> Vitorio.
>
>
>
> -----Original Message-----
> From: gem5-users [mailto:gem5-users-boun...@gem5.org] On Behalf Of Ciro
> Santilli
> Sent: Tuesday, March 27, 2018 4:28 PM
> To: gem5 users mailing list <gem5-users@gem5.org>
> Subject: [EXT] Re: [gem5-users] New image of Ubuntu 17.x with custom
> kernel (append build string -gem5) - kernel Panic
>
> If the init process is exits or is killed, the kernel panics, and shows
> the message:
>
> Kernel panic - not syncing: Attempted to kill init! exitcode
>
> you can it out with a minimal init that just prints hello world and exits,
> e.g. along:
> https://unix.stackexchange.com/questions/122717/custom-linux
> -distro-that-runs-just-one-program-nothing-else/238579#238579
>
> In order to not panic, you need to either:
>
> - do an infinite loop (which is what respawn on inittab does)
> - poweroff
> - m5 exit
>
>
> On Tue, Mar 27, 2018 at 9:21 PM, Vitorio Cargnini (lcargnini) <
> lcargn...@micron.com> wrote:
> > Hello,
> >
> >
> > I buit an image of the latest uBuntu 17.10 and added the m5 binary into
> it. Created a custom kernel (pretty much the same config just compiled and
> appended my additional string name).
> >
> >
> > Started the gem5 Full-System using the configs/example/fs.py. Using the
> supplied gentoo image all worked well, so I created a new image based on
> ubuntu. First time Kernel Panic due to root=/dev/hda1, I fix this with the
> --comand-line="... root=/dev/sda1", so far so good, until I reach the
> following point:
> >
> >
> > [    0.568623] Freeing unused kernel memory: 2008K
> > [    0.602852] Freeing unused kernel memory: 2036K
> > [    0.659931] x86/mm: Checked W+X mappings: passed, no W+X pages found.
> > [    0.659942] x86/mm: Checking user space page tables
> > [    0.716001] x86/mm: Checked W+X mappings: passed, no W+X pages found.
> > [    0.759422] systemd[1]: System time before build time, advancing
> clock.
> > [    0.770195] systemd[1]: segfault at 7f93ff3e6079 ip 00007f93f8004c60
> sp 00007ffd34ec4760 error 4 in libkmod.so.2.3.2[7f93f7ffe000+16000]
> > [    0.771176] Kernel panic - not syncing: Attempted to kill init!
> exitcode=0x0000000b
> > [    0.771176]
> > [    0.771194] CPU: 0 PID: 1 Comm: systemd Not tainted 4.16.0-rc7-gem5 #1
> > [    0.771207] Hardware name:  , BIOS  06/08/2008
> > [    0.771216] Call Trace:
> > [    0.771226]  dump_stack+0x63/0x8b
> > [    0.771238]  panic+0xe4/0x244
> > [    0.771251]  do_exit+0xaec/0xaf0
> > [    0.771264]  do_group_exit+0x43/0xb0
> > [    0.771275]  get_signal+0x27f/0x5c0
> > [    0.771289]  do_signal+0x37/0x730
> > [    0.771301]  ? __bad_area_nosemaphore+0xd7/0x1b0
> > [    0.771314]  ? printk+0x52/0x6e
> > [    0.771325]  ? print_vma_addr+0x87/0x110
> > [    0.771339]  exit_to_usermode_loop+0x8a/0xd0
> > [    0.771352]  prepare_exit_to_usermode+0x77/0x80
> > [    0.771365]  ? page_fault+0x2f/0x50
> > [    0.771376]  retint_user+0x8/0x8
> > [    0.771385] RIP: 0033:0x7f93f8004c60
> > [    0.771394] RSP: 002b:00007ffd34ec4760 EFLAGS: 0000022c
> > [    0.771406] RAX: 0000000005642079 RBX: 00007f93ff3e6079 RCX:
> 0000000000000029
> > [    0.771420] RDX: 000000000000007a RSI: 0000000065642079 RDI:
> 000055bb21df7700
> > [    0.771434] RBP: 000055bb21def8c0 R08: 00007f93f800f07e R09:
> 0000000000000038
> > [    0.771447] R10: 00007f93f800f07e R11: 000055bb21def8e4 R12:
> 000055bb21df7700
> > [    0.771461] R13: 000055bb200ae480 R14: 000055bb21def400 R15:
> 0000000000000000
> > [    0.771478] Kernel Offset: disabled
> > [    0.771488] ---[ end Kernel panic - not syncing: Attempted to kill
> init! exitcode=0x0000000b
> > [    0.771488]
> >
> >
> >
> > Does anybody ahve any idea why this kernel panic, it seems due to
> systemd?, has to do with me install gem5-guest-tools ??
> >
> >
> > Best Regards,
> >
> > Luis Vitorio.
> > _______________________________________________
> > gem5-users mailing list
> > gem5-users@gem5.org
> > http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users
> _______________________________________________
> gem5-users mailing list
> gem5-users@gem5.org
> http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users
> _______________________________________________
> gem5-users mailing list
> gem5-users@gem5.org
> http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users
>
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