[gem5-users] Re: How to create serial terminal when creating disk images?

2020-11-05 Thread Ciro Santilli via gem5-users
This is one of the things I've never had the patience to figure out, some ideas: * investigate in QEMU first as it is much faster * look into busybox's init code From: Chao Fu via gem5-users Sent: Wednesday, November 4, 2020 3:12 PM To:

[gem5-users] Re: File sizes of simulators generated by test script are much larger than those built by manual scons commands

2020-11-02 Thread Ciro Santilli via gem5-users
Yes, I had also previously observed that debug symbols make the huge majority of the executable's size, and for some reason much more so in .opt than in debug (presumably it takes more information to map back optimized code to source). You can confirm that by using strip gem5.opt or gcc- s

[gem5-users] Re: SE Mode and Std::thread

2020-11-02 Thread Ciro Santilli via gem5-users
Daniel, if you manage to reproduce on clean develop, please also open an issue at https://gem5.atlassian.net/jira/software/c/projects/GEM5/issues I'd also be curious to see if it reproduces on se.py (so I could see if it also happens on ARM). We've had some ARM-specific SE issues e.g. at

[gem5-users] Re: How to use the new libm5.a

2020-11-02 Thread Ciro Santilli via gem5-users
BTW I pushed a patch exposing m5_exit_addr at: https://gem5-review.googlesource.com/c/public/gem5/+/36896 And after that this should work on KVM https://gem5-review.googlesource.com/c/public/gem5-resources/+/36677/1 From: Gabe Black via gem5-users Sent:

[gem5-users] How to use the memory address version of m5ops such as m5_exit_addr in an external C progam?

2020-10-27 Thread Ciro Santilli via gem5-users
Hi, I have m5_exit working on a C program at https://gem5.googlesource.com/public/gem5-resources/+/refs/heads/stable/src/simple/m5_exit.c#41 but now I wanted to create one using the memory address version. We already have a m5_exit_addr symbol defined in the library, but I couldn't find it

[gem5-users] Re: track the write syscall in the kernel

2020-10-27 Thread Ciro Santilli via gem5-users
On full system you can also try to instrument the syscall function symbol, we do something analogous for panic detection: https://github.com/gem5/gem5/blob/f28b2e773f2ee97bf9c755b33aef9befc052d281/src/arch/arm/linux/fs_workload.cc#L207 From: ABD ALRHMAN ABO

[gem5-users] Re: How to use the new libm5.a

2020-10-27 Thread Ciro Santilli via gem5-users
Hi Wenqi, Have you tried: https://stackoverflow.com/questions/62757008/how-to-use-m5-in-gem5-20/62759204#62759204 or has something changed since then too? Seems to work on develop just now. From: wqyin--- via gem5-users Sent: Sunday, October 25, 2020 7:36 PM

[gem5-users] Re: SE Mode crashing with multithread workload

2020-10-16 Thread Ciro Santilli via gem5-users
One thing to try, that program looks like it needs --num-cpus=5 as it spawns 4 threads (so main + 4 total). From: Bobby Bruce via gem5-users Sent: Thursday, October 15, 2020 10:13 PM To: gem5 users mailing list Cc: Farhad Yusufali ; Bobby Bruce Subject:

[gem5-users] Re: Segmentation fault in gem5,

2020-10-03 Thread Ciro Santilli via gem5-users
* as for Jason's website, he is the sole moderator there, and can freely delete any comments as he sees fit On Sat, Oct 3, 2020 at 7:08 AM Ciro Santilli wrote: > The gem5 PMC cannot control Stack Overflow and GItHub accounts of its > contributors. > > If you want those avatars cha

[gem5-users] Re: Segmentation fault in gem5,

2020-10-03 Thread Ciro Santilli via gem5-users
e can reproduce the problem :). >>> 4. The gem5 project has a code of conduct ( >>> https://gem5.googlesource.com/public/gem5/+/refs/heads/stable/CODE-OF-CONDUCT.md). >>> Specifically it says our standards include "Demonstrating empathy and >>> kindness towa

[gem5-users] Re: Segmentation fault in gem5,

2020-10-02 Thread Ciro Santilli via gem5-users
Can you provide the URL at which the avatar you refer to is showing? On Fri, Oct 2, 2020 at 6:55 AM 1154063264--- via gem5-users wrote: > > First of all, I thank him for answering my question. However, as a Chinese, > his profile picture does not respect our country. If my behavior affects >

[gem5-users] Re: Segmentation fault in gem5,

2020-10-01 Thread Ciro Santilli via gem5-users
Please provide fuller reproduction details. On Thu, Oct 1, 2020 at 8:39 AM 1154063264--- via gem5-users wrote: > > I am trying to run parsec in MESI_Three_Level-gem5.opt for ARM architecture > in FS mode, but I am getting a segmentation fault. > > info: Entering event queue @ 25592214185500.

[gem5-users] Re: Tracking read()/write() system calls in gem5

2020-09-23 Thread Ciro Santilli via gem5-users
Also have a look at --debug-flags SyscallBase,SyscallVerbose On Tue, Sep 22, 2020 at 8:26 PM ABD ALRHMAN ABO ALKHEEL via gem5-users wrote: > > Hi All, can I track the read()/write() system calls in GEM5 in SE mode? If > so, how I can do that? Any help would be appreciated. Thanks >

[gem5-users] Re: Help in Understanding "Simple.py" Config File

2020-08-25 Thread Ciro Santilli via gem5-users
This gives some pointers on the SimObject Python/C++ interaction which might clarify things: https://stackoverflow.com/questions/62969566/attributes-of-system-object-in-gem5/62970092#62970092 On Tue, Aug 25, 2020 at 2:21 PM Dwaipayan Ray via gem5-users wrote: > > Hello Everyone, > > I am very

[gem5-users] Re: [ARM system] Question about the cleassic cache system

2020-08-21 Thread Ciro Santilli via gem5-users
I'm not sure about the cache hierarchy issue. But about Ruby support, I don't think there's any known ARM specific problem, and ARM contributors have been specifically pushing Ruby recently, see e.g. see Tiago's CHI announcement: https://www.gem5.org/2020/05/29/flexible-cache.html

[gem5-users] Re: Functional read failed while using pthread lock in program

2020-08-19 Thread Ciro Santilli via gem5-users
Functional reads in Ruby SE are a known and hard to solve problem, see https://gem5.atlassian.net/browse/GEM5-675 and https://gem5.atlassian.net/browse/GEM5-676 On Tue, Aug 18, 2020 at 6:33 PM VIPIN PATEL via gem5-users wrote: > > Hi All, > > I using the GEM5 simulator to collect statistics of a

[gem5-users] Re: Memory Addresses in Gem5

2020-08-15 Thread Ciro Santilli via gem5-users
need to convert binary to ASCII hex first. I want to push a simple patch for this in the near future, but you can do it manually easily too for now: https://stackoverflow.com/a/27173017/895245 > Thanks > > > From: Ciro Santilli > Sent: Wednesday, August 12, 2020

[gem5-users] Re: Restoring from checkpoint in gem5 x86 FS

2020-08-15 Thread Ciro Santilli via gem5-users
On Sat, Aug 15, 2020 at 6:44 PM Chandrahas Tirumalasetty via gem5-users wrote: > > Hello, > I am trying to restore from a checkpoint (created with AtomicSimpleCPU) with > cpu-type DerivO3CPU in my gem5 setup. I have two questions mainly > > Is it allowed to create a checkpoint with

[gem5-users] Re: Memory Addresses in Gem5

2020-08-12 Thread Ciro Santilli via gem5-users
I recommend that you have a look at the source of how AtomicSimpleCPU does an ifetch under Eclipse. It should be easy to understand everything quickly from there. The Packet address is physical (which notably what caches and DRAM work on), just have a look at the constructor of packet:

[gem5-users] Re: Error only occurs with higher number of clusters and cpus

2020-08-11 Thread Ciro Santilli via gem5-users
: Tuesday, August 11, 2020 11:37 AM To: gem5-users@gem5.org ; Ciro Santilli Cc: nd Subject: Re: [gem5-users] Error only occurs with higher number of clusters and cpus The error seems to relate to the kernel used. I build a new kernel (gem5: Building ARM Kernel<https://www.gem5.org/documentat

[gem5-users] Re: Supplementing experiment Data///答复: How to make scheduleInstStop() function to stop simulate at an accurate expected instructions counts for one core KVM/ATOMIC/O3 CPU simulation?

2020-08-10 Thread Ciro Santilli via gem5-users
Hi Yichao, How are you counting the instructions? --debug-flags ExecAll? If so, are you excluding pseudo instructions with --debug-flags ExecAll,ExecMicro? From: Liyichao via gem5-users Sent: Monday, August 10, 2020 5:29 AM To: gem5-users@gem5.org Cc: Liyichao

[gem5-users] Re: Error only occurs with higher number of clusters and cpus

2020-08-07 Thread Ciro Santilli via gem5-users
It might be the same as: https://gem5.atlassian.net/browse/GEM5-711 I want to investigate that soon hopefully. If you try Ruby and it fails, please open a separate bug, we want it to work as well  From: Sebastian Block via gem5-users Sent: Friday, August 7,

[gem5-users] Re: gem5 aborted when increase mem-size in FS mode

2020-08-06 Thread Ciro Santilli via gem5-users
Does it crash immediately? If so, provide to us and look at the backtrace to try and determine which allocation fails. If that doesn't help, you can also try techniques mentioned at: https://stackoverflow.com/questions/6261201/how-to-find-memory-leak-in-a-c-code-project/57877190#57877190 On Thu,

[gem5-users] Re: Current status of gem5 capabilities regarding multicores full system simulation

2020-07-28 Thread Ciro Santilli via gem5-users
Welcome back Nathanael! We put great importance on ARM Linux kernel boot, and we try to make it so that it either works or at least we have a bug report for it. I reproduce the problem with VExpress_GEM5_V2 but not VExpress_GEM5_V1, opening a but for V2 at:

[gem5-users] Re: Fwd: How calculate power in gem5?

2020-07-26 Thread Ciro Santilli via gem5-users
Hi, is this different from: https://www.mail-archive.com/gem5-users@gem5.org/msg18093.html If not, please don't repost so soon, and ping previous thread instead. I'm preparing to learn/ask around if no one replies. On Sun, Jul 26, 2020 at 9:08 AM faridehziaee via gem5-users wrote: > > > > Hi

[gem5-users] Re: Resume checkpoint generation from another checkpoint

2020-07-25 Thread Ciro Santilli via gem5-users
Why wouldn't it work :-)? Have you tried/how it fails? How did execution terminate Ctrl + C or a guest event? On Sat, Jul 25, 2020 at 7:13 AM as3mx--- via gem5-users wrote: > > Hi > > I wanted to know if it is possible to resume the checkpoint generation from > the last checkpoint generated.

[gem5-users] Re: Need help in compiling the kernel

2020-07-22 Thread Ciro Santilli via gem5-users
To compile kernel see e.g.: https://raspberrypi.stackexchange.com/questions/192/how-do-i-cross-compile-the-kernel-on-a-ubuntu-host but replace arm with arm64 and the compile with the aarch64 one for 64-bit arm. All other ISAs are analogous. The ARM configs are in-tree of the official arm gem5

[gem5-users] Re: How to use eclipse or any other IDE to debug user code in GEM5

2020-07-21 Thread Ciro Santilli via gem5-users
https://stackoverflow.com/questions/61656709/how-to-setup-eclipse-ide-for-gem5-development On Mon, Jul 20, 2020 at 12:25 PM Muhammad Aamir via gem5-users wrote: > > Hi everyone, > > I have been following this >

[gem5-users] Re: Benchmark terminating early

2020-07-13 Thread Ciro Santilli via gem5-users
SE I suppose? It seems that the benchmark ends normally with an exit syscall, I would start by looking at --debug-flags SyscallBase to double check that. Then if that is the case, the only explanation is that some value is getting corrupted somewhere due to a gem5 bug. So I would try to: 1)

[gem5-users] Re: Using hack_back_ckpt for checkpoint restoring

2020-07-10 Thread Ciro Santilli via gem5-users
Related: https://stackoverflow.com/questions/58886672/bad-function-call-m5-event-simulateargs-kwargs-when-running-full-system-b On Fri, Jul 10, 2020 at 1:44 AM Aditya Narayan via gem5-users wrote: > > Hi, > > I am running into issues when using the script "hack_back_ckpt.rcS" to create > a

[gem5-users] Re: dump out the register value of each instruction

2020-07-09 Thread Ciro Santilli via gem5-users
One option might be to --debug-flags Registers and look up to latest register modification. See also --debug-help. On Thu, Jul 9, 2020 at 6:19 PM Shougang Yuan via gem5-users wrote: > > Hi, All, > > I want to dump out the source register and destination register value of each > instruction.

[gem5-users] Re: ARM full-system simulation error during checkpoint: rcu_preempt detected stalls on CPUs/tasks

2020-07-09 Thread Ciro Santilli via gem5-users
I'm not aware of this, please provide further reproduction details on JIRA (which kernel, full gem5 CLIs, gem5 git version) and we'll have a look. From: Choe, Jiwon via gem5-users Sent: Wednesday, July 8, 2020 5:35 PM To: gem5 users mailing list Cc: Choe, Jiwon

[gem5-users] Re: 2 level TLB in ARM Full System with Ruby

2020-07-08 Thread Ciro Santilli via gem5-users
Shehab, sorry for the delay, I had to check a few things about this, First, are you aware that there is a not-yet-merged patch that implements a two level TLB at: https://github.com/giactra/gem5/commit/3022ecc8a06a9182b2cf1936941901a785c1b21d ? It hasn't been merged because we noticed that it

[gem5-users] Re: What is miscellaneous register

2020-07-08 Thread Ciro Santilli via gem5-users
Also, in ARM more specifically, you can see miscregs at https://github.com/gem5/gem5/blob/cc3e12b504c20b3bc78db52059d3f4f9b02dfbe8/src/arch/arm/miscregs.hh#L56 Most are what the ARM manuals call "System Registers", but a few others are just convenient ways to implement other ISA features like

[gem5-users] Fwd: How to check ...

2020-07-03 Thread Ciro Santilli via gem5-users
Forwarding reply to mailing list. -- Forwarded message - From: Anuj Falcon Date: Fri, Jul 3, 2020 at 8:05 AM Subject: Re: [gem5-users] How to check ... To: Ciro Santilli Below is the link to the GEM5 model. (Public) https://gitlab.com/shaktiproject/tools/core-models-gem5

[gem5-users] Re: How to check ...

2020-07-03 Thread Ciro Santilli via gem5-users
Describe your model briefly here/discuss on a review request if you already have code? :-) On Thu, Jul 2, 2020 at 11:39 PM Anuj Falcon via gem5-users wrote: > > How to know if my CPU model qualifies to be upstreamed with the rest of the > CPU models in gem 5 ? >

[gem5-users] Re: heterogeneous core configuration and mapping threads in gem5 FS simulation

2020-06-27 Thread Ciro Santilli via gem5-users
I'm not sure about the TLB part, but configs/example/arm/fs_bigLITTLE.py in tree already showcases two types of cores and is maintained, so maybe you can take that as a starting point and see how TLBs are attached and modify that for one of the set of cores. On Fri, Jun 26, 2020 at 11:31 PM Choe,

[gem5-users] Re: How to modify the simulator to load shared libs

2020-06-09 Thread Ciro Santilli via gem5-users
", and I check the options.py file in the configs/common > directory, it seems that this option has been deprecated? Or is there > anything I misunderstand? > > Best regards. > Shougang > > On Tue, Jun 9, 2020 at 10:40 AM Ciro Santilli wrote: >> >> --redi

[gem5-users] Re: How to modify the simulator to load shared libs

2020-06-09 Thread Ciro Santilli via gem5-users
out redirect /lib64 or that directory? I > can understand syslink the needed shared library into a directory, and after > that, you mean I need to redirect the lib64 to this directory or? > > Best regards. > Shougang > > On Tue, Jun 9, 2020 at 2:36 AM Ciro Santilli wro

[gem5-users] Re: How to modify the simulator to load shared libs

2020-06-09 Thread Ciro Santilli via gem5-users
One thing to try if you are desperate: symlink every needed shared library into a directory, and then redirect /lib64 or that directory. I'm pretty sure this should work. I'm not sure why LD_LIBRARY_PATH does not work. I would dig dieeper and try to understand that, theoretically it feels like it

[gem5-users] Re: How to add shared libs that used by benchmarks to the simulator

2020-06-08 Thread Ciro Santilli via gem5-users
OK, the previous --redirects idea makes no sense, nevermind, I wish I could edit emails. On Mon, Jun 8, 2020 at 4:39 PM Ciro Santilli wrote: > > --redirects can be used multiple times. But not 100% sure it will be > able to replace LD_LIBRARY_PATH. Just one thing worth trying along >

[gem5-users] Re: How to add shared libs that used by benchmarks to the simulator

2020-06-08 Thread Ciro Santilli via gem5-users
option. but the error is still can > not find this lib. Do you have any hints about this? > > Best regards. > Shougang > > On Mon, Jun 8, 2020 at 10:42 AM Ciro Santilli wrote: >> >> Have you tried --redirects as mentioned at >> https://stackoverflow.com/questio

[gem5-users] Re: How to add shared libs that used by benchmarks to the simulator

2020-06-08 Thread Ciro Santilli via gem5-users
--env option with myse.py, but it > still shows the same error. > > On Mon, Jun 8, 2020 at 3:39 AM Ciro Santilli wrote: >> >> Syscall emulation or full system? >> >> On Sun, Jun 7, 2020 at 10:01 PM Shougang Yuan via gem5-users >> wrote: >> > >

[gem5-users] Re: How to add shared libs that used by benchmarks to the simulator

2020-06-08 Thread Ciro Santilli via gem5-users
Syscall emulation or full system? On Sun, Jun 7, 2020 at 10:01 PM Shougang Yuan via gem5-users wrote: > > HI, All, > > I am trying to run some benchmarks that need some shared libs, and these > shared libs are imported by setting the environment variables > "LD_LIBRARY_PATH" if I run it on

[gem5-users] Re: Newly copied files are truncated in gem5 FS mode

2020-06-04 Thread Ciro Santilli via gem5-users
Are you mounting and modifying the disk on the host while gem5 is using it at the same time? That likey cannot work because the Linux kernel representation of guest and host will differ. Also gem5 does not write back to disk. The file sharing mechanisms I know to modify guest visible files from

[gem5-users] Re: Running Gem5/Ruby tests

2020-06-02 Thread Ciro Santilli via gem5-users
It does look like your host's library is not compatible with whatever was used to compile that C hello world. You can't in general download and run dynamically linked programs built for other toolchains, you either have to build it yourself (often the easiest thing to do) or somehow obtain a

[gem5-users] Re: Any way to add randomization into full system simulation?

2020-05-18 Thread Ciro Santilli via gem5-users
Maybe you want to look into: m5 readfile, 9P or use two disks as mentioned at: https://cirosantilli.com/linux-kernel-module-cheat/#gem5-restore-new-script On Sun, May 17, 2020 at 9:20 PM HENG ZHUO via gem5-users wrote: > > Hi, > > I am trying to run some benchmark on ARM full system simulation.

[gem5-users] Re: Traces of instructions only.

2020-05-06 Thread Ciro Santilli via gem5-users
There is no stupid question around here, ask away :-) On Wed, May 6, 2020 at 10:33 PM Øivind Harket Bakke via gem5-users wrote: > > Dear Santilli, > > that fixed everything except my embarrassment. > Thank you very much, really appriciated! > > Best regards, > Øivind >

[gem5-users] Re: Traces of instructions only.

2020-05-06 Thread Ciro Santilli via gem5-users
Maybe did you mean to use -ExecMicro to remove microops rather than -ExecMacro? E.g. one STP generates 4 microops as shown at: https://cirosantilli.com/linux-kernel-module-cheat/#gem5-execall-trace-format On Wed, May 6, 2020 at 8:54 PM Øivind Harket Bakke via gem5-users wrote: > > Hi all, > >

[gem5-users] Re: How to use GUEST BINARIES in fs?

2020-04-25 Thread Ciro Santilli via gem5-users
OK, also quick grep in kernel code and we can see that -8 and -13 are the same as exec syscall error numbers: #define ENOEXEC 8 /* Exec format error */ #define EACCES 13 /* Permission denied */ not 100% sure what those mean, but worth looking into as well. On Sat, Apr 25, 2020 at 7:13 PM Ciro

[gem5-users] Re: How to use GUEST BINARIES in fs?

2020-04-25 Thread Ciro Santilli via gem5-users
No worries. I would mount the image on host and ensure that the init you think is there is actually there, and that it seems to be right filetype (ISA is ARM, is executable, etc.). And ensure that you are pointing to it with init= kernel CLI parameter. If you don't understand from that, GDB step

[gem5-users] Re: How to use GUEST BINARIES in fs?

2020-04-25 Thread Ciro Santilli via gem5-users
You could download from: http://www.gem5.org/documentation/general_docs/fullsystem/guest_binaries section "Latest Linux Disk Images (recommended)" Personally I normally use Buildroot:

[gem5-users] Re: How to use GUEST BINARIES in fs?

2020-04-25 Thread Ciro Santilli via gem5-users
Can you also try to use the full path to vmlinux.arm64 instead of just basename? I suspect it is currently searching for it on M5_PATH (because not slashes in the path) and finding some broken image there. Better still, get rid of M5_PATH altogether if possible. My full non minimized CLI with

[gem5-users] Re: How to use GUEST BINARIES in fs?

2020-04-25 Thread Ciro Santilli via gem5-users
I don't know exactly what is going on, but I've tested aarch-system-201901106/binaries/vmlinux.arm64 in fs.py and it worked fine. So the exact same script works with the old kernel but not new one? Are you sure that the kernel exists at that path? Also try to GDB/PDB debug it a bit. On Sat, Apr

[gem5-users] Re: increasing disk image size for full system simulation

2020-04-22 Thread Ciro Santilli via gem5-users
Try libguestfs-tools: https://askubuntu.com/questions/107228/how-to-resize-virtual-machine-disk/481887#481887 It is the easiest method. I think it boots QEMU, mounts the image, and does the resizing operations for you. You may need to add sudo to commands due to this bug:

Re: [gem5-users] Running YCSB in Gem5 FS

2020-04-17 Thread Ciro Santilli
(val >>> 8); > bytes[7] = (byte) (val >>> 0); > return bytes; > } > > Maybe type inversion to/from long incurs floating-point instructions that are > not implemented in Gem5, which results in YCSB errors. > Is there any way I can solve this problem? - Is there any

Re: [gem5-users] Running YCSB in Gem5 FS

2020-04-14 Thread Ciro Santilli
You have to try and debug it further to narrow down the exact operation gem5 seems to be doing wrong (--debug-flags ExecAll, GDB into guest). This could be easy to spot, or extremely difficult if the divergence happened way earlier in execution before the crash, but I don't see an alternative.

Re: [gem5-users] Double PseudoInst commands while running Parsec

2020-04-12 Thread Ciro Santilli
ideas? > > > > On Thu, Apr 9, 2020 at 8:59 PM Ciro Santilli wrote: >> >> Can you double check with aarch64-linux-gnu-objdump that the binary >> really only contains a single pseudoop? Maybe it is just an >> instrumentation bug that doubles it up. >> &g

Re: [gem5-users] Double PseudoInst commands while running Parsec

2020-04-09 Thread Ciro Santilli
Can you double check with aarch64-linux-gnu-objdump that the binary really only contains a single pseudoop? Maybe it is just an instrumentation bug that doubles it up. I would also recommend that you try to correlate --debug-flags ExecAll or GDB the guest executable around the pseudoop point to

Re: [gem5-users] Doubt about the event queue and stats

2020-04-09 Thread Ciro Santilli
On Thu, Apr 9, 2020 at 6:29 PM Ajumal P A wrote: > > Hi All, > I have a couple of doubts about how the event queue works and how stats are > being calculated. Please help me with the following questions. > I have a loop which runs for 100 times, each iteration do an add operation > and this

Re: [gem5-users] Ruby functional read fails and potential fix

2020-04-09 Thread Ciro Santilli
Thanks for this Shehab, Could you compare your changes to this patchset: https://gem5-review.googlesource.com/c/public/gem5/+/22022/1 On Thu, Apr 9, 2020 at 6:22 PM Shehab Elsayed wrote: > > Hello All, > > I was running some experiments and I ran into a problem with ruby where a > functional

Re: [gem5-users] Busybox on ARM SE mode

2020-04-09 Thread Ciro Santilli
There is an implemented syscall (setgid), you have to either implement it, or ignore it (grep and modify the source there are many already ignored) if that is not likely to matter. See also: https://stackoverflow.com/questions/51256193/missing-syscalls-in-gem5-arm On Thu, Apr 9, 2020 at 2:02 AM

Re: [gem5-users] panic: Pseudo inst "%" is only available in Full System mode.

2020-04-08 Thread Ciro Santilli
Try to trace it down to a more specific instruction with --debug-flags ExecAll. Also give us full gem5 CLI. On Wed, Apr 8, 2020 at 10:35 AM swamy saranam wrote: > > Hi everyone, > > I am trying to setup SPEC CPU 2017 workloads in gem5 SE mode. When I try to > run 603.bwaves and 631.deepsjeng, I

Re: [gem5-users] Full System: Issue with gem5init script

2020-04-03 Thread Ciro Santilli
I would suggest that you try to run it on QEMU as well where things will go much faster and to try and that will potentially decide if it is a gem5 bug or not if it woks on QEMU. Then if it does not work on QEMU either, try extracting the init problem from gem5 and asking on a community that

Re: [gem5-users] Fw: Gem5 crash when i use --cpu-type=DerivO3CPU

2020-03-27 Thread Ciro Santilli
2020 3:46:07 AM > *To:* gem5 users mailing list ; Ciro Santilli < > ciro.santi...@arm.com>; Ciro Santilli > *Subject:* Re: [gem5-users] Gem5 crash when i use --cpu-type=DerivO3CPU > > Hi Ciro, > > I have compiled the following repository using *make *command to work on &g

Re: [gem5-users] Correct Way to Fast-Forward

2020-03-26 Thread Ciro Santilli
Hi Muhammet, Since this a common question, I've decided to start a Q at: https://stackoverflow.com/questions/60876259/which-system-characteristics-such-as-number-of-cores-of-cache-configurations-can to centralize knowledge about the issue. If any more experienced user can add or correct anything

Re: [gem5-users] Gem5 crash when i use --cpu-type=DerivO3CPU

2020-03-26 Thread Ciro Santilli
BTW, ARM checkpointing seemed completely broken on latest develop when I tried it, opened a bug at: https://gem5.atlassian.net/browse/GEM5-426 On Thu, Mar 26, 2020 at 8:39 AM Ciro Santilli wrote: > > What's the error message? > > On Thu, Mar 26, 2020 at 6:31 AM ABD ALRHMAN ABO ALKH

Re: [gem5-users] Gem5 crash when i use --cpu-type=DerivO3CPU

2020-03-26 Thread Ciro Santilli
What's the error message? On Thu, Mar 26, 2020 at 6:31 AM ABD ALRHMAN ABO ALKHEEL wrote: > > Hi All, > > I run the following command to take checkpoint and it works well. But when i > use --cpu-type=DerivO3CPU instead of AtomicSimpleCPU the system crash. I > want DerivO3CPU as cpu type.

Re: [gem5-users] Debugging std::bad_alloc memory errors in gem5

2020-03-25 Thread Ciro Santilli
I would try to put prints/PDB on src/python/m5/stats/__init__.py where enable is called. On Wed, Mar 25, 2020 at 5:35 AM Subhankar Pal wrote: > > Hi, > > I am trying to run simulations in SE mode with a 1000+ (simple) cores. I get > the following error once m5.instantiate() is called. >

Re: [gem5-users] Run APK on Gem5

2020-03-25 Thread Ciro Santilli
You have to either fully boot Android on fs.py or find some userland setup which I don't know about for SE. I don't have a fully automated Android boot setup, so just try it out and tell if it fails and how. For plain Java, it is much more likely that you will be able to run in SE: but will

Re: [gem5-users] Pass address bounds of an array from application to gem5

2020-03-20 Thread Ciro Santilli
This information may also be of interest: https://cirosantilli.com/linux-kernel-module-cheat/#m5ops On Fri, Mar 20, 2020 at 5:33 AM Armand Behroozi wrote: > > Thank you so much! Will take a look. > > Also wanted to thank you for your tutorials and learning_gem5 code. > > My research would not be

Re: [gem5-users] Simulation terminates successfully on one machine and runs into assertion failure on another

2020-03-10 Thread Ciro Santilli
Please give us stack trace (GDB it if none), full gem5 CLI, gem5 git version, as much detail as possible about content, and ensure you have https://gem5-review.googlesource.com/c/public/gem5/+/22283/4 ideally on a bug report at: https://gem5-review.googlesource.com/c/public/gem5/+/22283/4

Re: [gem5-users] how to Run spec cpu 2006 on gem5-Fs

2020-03-02 Thread Ciro Santilli
One Buildroot option: - https://cirosantilli.com/linux-kernel-module-cheat/#gem5-buildroot-setup-getting-started - https://cirosantilli.com/linux-kernel-module-cheat/#add-new-files-to-the-buildroot-image On Mon, Mar 2, 2020 at 5:50 PM FARIDEH ZIAEE wrote: > > Hi, > I need to run spec cpu

Re: [gem5-users] Linux boot

2020-02-27 Thread Ciro Santilli
https://github.com/cirosantilli/linux-kernel-module-cheat/tree/8a2cad195b295ad02c23af7a629bd21b4a9f306d#gem5-buildroot-setup-getting-started boots Buildroot (not Ubuntu) to shell in about 4 minutes on a P51 https://cirosantilli.com/linux-kernel-module-cheat/#p51 With Ubuntu, I would use my own

Re: [gem5-users] Kernel for x64

2020-02-26 Thread Ciro Santilli
And this is a Buildroot setup tested on ARM and X86: https://github.com/cirosantilli/linux-kernel-module-cheat#gem5-buildroot-setup-getting-started On Wed, Feb 26, 2020 at 6:31 AM niranjan soundararajan wrote: > > Hello > > Has anyone got a recent Linux kernel (Ubuntu 18.0.4) for GEM5 working

Re: [gem5-users] Fw: Asim benchmarks on gem5

2020-02-21 Thread Ciro Santilli
*From:* Ciro Santilli *Sent:* Friday, February 21, 2020 2:10:48 PM *To:* gem5 users mailing list ; ABD ALRHMAN ABO ALKHEEL ; gem5-users *Subject:* Re: [gem5-users] Fw: Asim benchmarks on gem5 I'm afraid I don't have a super automated setup

Re: [gem5-users] ARM DerivO3CPU assertion failed

2020-02-21 Thread Ciro Santilli
I observe the following behavior on se.py ARM and X86, which depends on --restore-with-cpu. I have used a minimal userland executable that only does two things in assembly: m5 checkpoint and m5 exit (total of only 5 instructions in aarch64) @Jason: can you confirm the difference between se.py

Re: [gem5-users] Fw: Asim benchmarks on gem5

2020-02-21 Thread Ciro Santilli
I'm afraid I don't have a super automated setup that just works for Android, and haven't done this myself specifically, but here are some thoughts: - those instructions are like large part of the wiki old and may have stopped working --machine-type=VExpress_EMM is not recommended anymore,

Re: [gem5-users] CPU scheduler

2020-02-21 Thread Ciro Santilli
A bit more precisely, every fork syscall starts on a new free CPU. If there are no new free CPUs, the call fails in the guest. Once the thread ends, the CPU is freed and becomes available for new threads. Also mentioned at:

Re: [gem5-users] Simulation does not stop, SE mode, 2 cpus, DerivO3CPU, ruby memory

2020-02-18 Thread Ciro Santilli
Hi Arun, "I started using ruby memory model after reading from gem5 email archive that classic memory does not work with multicore DerivO3CPU.": I didn't know this, where was this mentioned? I have just run an ARM pthread hello world on DerivO3CPU 2 cores and it worked on master. I reproduce

Re: [gem5-users] [gem5-dev] gem5 segfault with DPRINTFs

2020-02-14 Thread Ciro Santilli
Please don't cross post on dev/user as it can divide discussion. On Fri, Feb 14, 2020 at 3:32 AM Daniel Gerzhoy wrote: > > Hi all, > > I've added a series of DPRINTFs into the coherence protocol (GPU_VIPER) > and its been working ok, up until this morning when I added a bunch all at > once and

Re: [gem5-users] How to attach second image to full system emulation.

2020-02-13 Thread Ciro Santilli
Hi Iago, I have managed to get it working recently without any patches as explained at: https://stackoverflow.com/questions/50862906/how-to-attach-multiple-disk-images-in-a-simulation-with-gem5-fs-py/60210181#60210181 If that doesn't solve the problem for you, let me know. On 2/7/20 2:38

Re: [gem5-users] Inconsistency detected by ld.so: rtld.c: 1273: dl_main: Assertion `GL(dl_rtld_map).l_libname' failed!

2020-02-13 Thread Ciro Santilli
Full system or syscall emulation? Always give full gem5 CLI :-) If syscall emulation and the binary is dynamically linked, try to produce a statically linked version of it, since this seems dynamic loader related. On 2/10/20 3:30 PM, 616653241 wrote: hi, everyone, � � I was running

Re: [gem5-users] Segmentation fault in gem5

2020-01-18 Thread Ciro Santilli
Give us the backtrace. On Sat, Jan 18, 2020 at 1:34 PM DURAIRAJ J <2016506...@annauniv.edu.in> wrote: > > Hello, > I have encountered a segmentation fault in gem5, by running the following > command > "./build/X86/gem5.debug ./configs/example/garnet_synth_traffic.py --ruby > --num-cpus=16

Re: [gem5-users] Zero cost print for debugging/profiling code in se.py

2020-01-10 Thread Ciro Santilli
You could hack up custom m5op magic instructions easily by copying existing ones, but I think it still takes up a memory fetch/decode. Better than that, only if you hack a way to do something when a given PC is reached. Maybe have a look at how Linux detects panics by reading the PC of the panic

Re: [gem5-users] Run CPU 2006 benchmark on gem5 fs mode

2020-01-09 Thread Ciro Santilli
iro, I appreciate your help. Can you provide me an example on .rcs > script to run the benchmark. Any help would be appreciated. Best Regards > ____ > From: Ciro Santilli > Sent: Thursday, January 9, 2020 9:52:28 AM > To: gem5 users mailing list ; a

Re: [gem5-users] Run CPU 2006 benchmark on gem5 fs mode

2020-01-09 Thread Ciro Santilli
1. get Linux to boot, e.g.: https://github.com/cirosantilli/linux-kernel-module-cheat/tree/657c59249e56d861bb0a437a1b1c757797281910#gem5-buildroot-setup 2. learn to checkpoint at the end of boot, restore, and run an executable afterwards, e.g.:

Re: [gem5-users] Run FS mode

2020-01-08 Thread Ciro Santilli
https://stackoverflow.com/questions/56319473/gem-5-ioerror-cant-find-a-path-to-system-files-full-system-x86-simulation-set/56320982#56320982 On Wed, Jan 8, 2020 at 2:33 AM ABD ALRHMAN ABO ALKHEEL wrote: > > Hi All, > > I run this command and i got the below error. Any help would be appreciated.

Re: [gem5-users] Changing configuration between checkpoint and restore

2020-01-06 Thread Ciro Santilli
On Mon, Jan 6, 2020 at 4:09 PM Shehab Elsayed wrote: > > Hello All, > > I was wondering which configuration parameters are safe to change between > taking a checkpoint and restoring from the same checkpoint. For example, > cache configuration, core configuration, number of LLC banks, number of

Re: [gem5-users] error while running gem 5 in full system mode for ARM

2020-01-04 Thread Ciro Santilli
Also consider this working setup: https://github.com/cirosantilli/linux-kernel-module-cheat/tree/3a8f2fcff5e828dfb4eb93932a25375dae8a1d4c#gem5-buildroot-setup-getting-started with ./build --arch aarch64 --download-dependencies gem5-buildroot ./run --arch aarch64 --emulator gem5 On Sat, Jan 4,

Re: [gem5-users] ARM Cortex modelling

2019-12-11 Thread Ciro Santilli
An overview of CPU models can be found at: https://cirosantilli.com/linux-kernel-module-cheat#gem5-cpu-types Some considerations: - O3_ARM_v7a was created in 2012, but not by ARM Holding directly. Cortex-R8 is from 2016. There is no ARM holding O3 particularization currently, so it is very

Re: [gem5-users] Kernel panic when build custom kernel in FS mode

2019-12-11 Thread Ciro Santilli
here is an alternate automated setup that I have tested: https://github.com/cirosantilli/linux-kernel-module-cheat/tree/50ac89b779363774325c81157ec8b9a6bdb50a2f#gem5-buildroot-setup On Thu, Dec 5, 2019 at 4:05 AM 闫亮 wrote: > > Hi all, > > I am trying to use full_system simulation in gem5 and

Re: [gem5-users] [Full system] application run problem

2019-12-11 Thread Ciro Santilli
On 12/10/19 3:25 AM, Eliot Moss wrote: > On 12/6/2019 4:56 AM, 闫亮 wrote: >> Hi all, >> >> I am new to the gem5, I want to run a CNN model write in Python by >> gem5. What I learned so far is we usually run the compiled C/C++ >> program in full system simulation. How about run a python program,

Re: [gem5-users] Task to core mapping in gem5

2019-12-11 Thread Ciro Santilli
On 12/11/19 4:36 AM, DURAIRAJ J wrote: > Hi, > I have used Parsec benchmarks for mapping application on to the > simulated network in gem5 simulator. > Does anyone know how to specify our own task to core mapping algorithm > and also where to place that algorithm (i.e) the directory of where >

Re: [gem5-users] Running a java program through gem5

2019-12-02 Thread Ciro Santilli
Related question yet without satisfactory answer: https://stackoverflow.com/questions/58399259/running-java-programs-in-gem5or-any-language-which-is-not-c Maybe we can use the new --redirects option to get this working, not sure:

Re: [gem5-users] Bug when using mutex in ARM SE

2019-11-12 Thread Ciro Santilli
Oi Rafael, Thanks for the detailed report. I don't think there is any advantage of using the pthread library currently, at least on ARM. I reproduce on e96ccec8159f91d60bed8342184fb969b06eaf4f Ubuntu 19.04, but only with Ruby. Without Ruby and everything else the same, it works. What makes

Re: [gem5-users] gem5 stats

2019-11-12 Thread Ciro Santilli
On Tue, Nov 12, 2019 at 7:26 AM Javed Osmany wrote: > Hello > > > > I wanted to experiment with enabling/disabling the existing stats in GEM5 > before I start delving into adding stats. > > I am assuming that all the stats implemented are enabled by default. > > > > What would be the simplest

Re: [gem5-users] Question about compile after adding global funcs

2019-11-07 Thread Ciro Santilli
On 11/7/19 2:28 PM, yuan wrote: > Hi, All, > > I suffered one problem of multiple definition when compiling, what I did > is adding some new functions I need in a file name my_func.hh under > src/mem/, and in the file cache.cc where I need these functions I use > #include “mem/my_func.hh”,

Re: [gem5-users] gem5 takes a lot of time to load global data from program binary

2019-11-06 Thread Ciro Santilli
On 11/6/19 12:05 PM, Nitish Srivastava wrote: > Hi, > > I am trying to run some benchmarks in gem5. These benchmarks have really > big matrices stored as global arrays. While simulating it seems like > gem5 is taking a lot of time to just load these global matrices i.e. the > time difference

Re: [gem5-users] errors compiling gem5 with GCC 9.2.1 (Ubuntu 19.10)

2019-11-04 Thread Ciro Santilli
On Mon, Nov 4, 2019 at 8:09 PM Andreas Brokalakis wrote: > > Hi all, > > I am trying to compile gem5 cloned from the official repository on Ubuntu > 19.10 with gcc 9.2.1 installed. I keep on getting errors that make > practically the compilation process impossible. > > The first errors were

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