You will need to use gdb or a similar tool to find out where that seg fault is coming from.
-Tony On Sun, Sep 30, 2012 at 3:29 PM, Fangfei Liu <fangf...@princeton.edu> wrote: > I didn't use caches when taking a checkpoint. This is the command line I > used to take the checkpoint. > > build/ARM/gem5.opt --outdir=bbench configs/example/fs.py -b bbench-gb > --kernel=vmlinux.smp.mouse.arm --frame-capture --checkpoint-dir=bbench > > > > > ------------------------------ > *From:* gem5-users-boun...@gem5.org [gem5-users-boun...@gem5.org] on > behalf of Anthony Gutierrez [atgut...@umich.edu] > *Sent:* Sunday, September 30, 2012 3:04 PM > > *To:* gem5 users mailing list > *Subject:* Re: [gem5-users] questions on running benchmark on gem5 > > Did you take a checkpoint with caches? If so, you must take a checkpoint > without caches. > > -Tony > > On Sun, Sep 30, 2012 at 2:58 PM, Fangfei Liu <fangf...@princeton.edu>wrote: > >> I see, probably I had some interacting with vncviewer with the mouse >> when the keyboard is open. I tried to run the benchmark again and now it >> can run to completion. Thank you very much for your kind help! >> >> I have another problem. I took a checkpoint after booting the OS in >> atomic mode with the default configuration. I did this by inserting a m5 >> instruction in the bbench-gb.rcS file: /sbin/m5 checkpoint (right after >> sleep 10). The checkpoint can be taken correctly. Then I want to resume the >> checkpoint and simulate BBench in arm_detailed mode, but I got segmentation >> fault. The command line and output is as follows: >> >> command line: build/ARM/gem5.opt --outdir=bbench2 configs/example/fs.py >> -b bbench-gb --kernel=vmlinux.smp.mouse.arm --frame-capture >> --checkpoint-dir=bbench -r 1 --caches --cpu-type=arm_detailed --l2cache >> --cacheline_size=64 --l1d_size=32kB --l1d_assoc=4 --l2_size=512kB >> --l2_assoc=8 >> Global frequency set at 1000000000000 ticks per second >> info: kernel located at: >> /tigress-hsm/fangfeil/gem5/system/binaries/vmlinux.smp.mouse.arm >> Switch at curTick count:10000 >> info: Entering event queue @ 19318968082000. Starting simulation... >> Switched CPUS @ tick 19318968092000 >> Changing memory mode to timing >> switching cpus >> **** REAL SIMULATION **** >> info: Entering event queue @ 19318968092000. Starting simulation... >> Segmentation fault >> >> I still use the same rcS file except comment the checkpoint command. I >> was wondering whether I did this correctly. Thanks in advance! >> >> Best regards >> Fangfei >> >> >> ------------------------------ >> *From:* gem5-users-boun...@gem5.org [gem5-users-boun...@gem5.org] on >> behalf of Anthony Gutierrez [atgut...@umich.edu] >> *Sent:* Sunday, September 30, 2012 12:59 PM >> >> *To:* gem5 users mailing list >> *Subject:* Re: [gem5-users] questions on running benchmark on gem5 >> >> BBench is a web-page rendering benchmark, however, it shouldn't >> interact with the web-pages in any way. It's doing a google search for >> something called ewbay and the keyboard is open, that shouldn't happen. >> Were you interacting with the vncviewer with the mouse? Is it possible that >> this query could have been entered in error? There is nothing in the BBench >> source called "ewbay", so it's hard to tell how that url is being produced >> otherwise. >> >> -Tony >> >> On Sat, Sep 29, 2012 at 2:15 PM, Fangfei Liu <fangf...@princeton.edu>wrote: >> >>> Thanks for your reply. >>> >>> I didn’t change anything and the command line I used was exactly the >>> same as that in the BBench instruction page. The exact URL is >>> http://www.google.com/m?hl=md&gl=us&source=android-browser-type&q=ewbay<https://owa.princeton.edu/owa/redir.aspx?C=7HmSRhGXSk2J12xsesLMwH3TuxeMcc8IjThnd3hkIWuO2qoM84GhCA0ZlhUlBjlhcqAIq2Ta4iw.&URL=http%3a%2f%2fwww.google.com%2fm%3fhl%3dmd%26gl%3dus%26source%3dandroid-browser-type%26q%3dewbay>. >>> It is actually doing google search for ebay. Please find attached a >>> snapshot for this page. >>> >>> >>> >>> Best regards >>> >>> Fangfei >>> >>> Date: Fri, 28 Sep 2012 14:49:55 -0400 >>> From: Anthony Gutierrez <atgut...@umich.edu> >>> >>> To: gem5 users mailing list <gem5-users@gem5.org> >>> Subject: Re: [gem5-users] questions on running benchmark on gem5 >>> Message-ID: >>> <caeqebpsxtdzuouczrvt6q1-3ckj5mkwzgicnwdo9qbpwume...@mail.gmail.com> >>> Content-Type: text/plain; charset="iso-8859-1" >>> >>> >>> I started a BBench run this morning with a fresh check out of the latest >>> dev repo, the Android kernel and an unmodified Gingerbread disk image >>> with >>> BBench, both from gem5.org/bbench-gem5. I do not see this problem, eBay >>> renders fine and the simulation continues. I will need more info on your >>> setup/how you're running the simulation if you'd like help with this >>> problem. >>> >>> -Tony >>> >>> On Fri, Sep 28, 2012 at 11:31 AM, Anthony Gutierrez <atgut...@umich.edu >>> >wrote: >>> >>> > I've never seen this problem before, and the BBench source for eBay >>> does >>> > not show anything called ewbay in the source, so I don't know how it's >>> > getting redirected to that URL. Did you modify the BBench source in any >>> > way? Can you send me your exact command line? And, can you tell me the >>> > exact URL that the browser shows when it hangs? >>> > >>> > -Tony >>> > >>> > On Thu, Sep 27, 2012 at 10:25 AM, Fangfei Liu <fangf...@princeton.edu >>> >wrote: >>> > >>> >> Hi,**** >>> >> >>> >> ** ** >>> >>> >> >>> >> I tried to run Bbench on gem5 with Gingerbread disk image (atomic mode >>> >> and default configuration). The simulator took about 140 minutes to >>> boot >>> >> Android and start running the benchmark. But it seems that the >>> benchmark >>> >> stalled at certain web page after running for a while. I find that it >>> is >>> >> supposed to render a web page in ebay but used the wrong url with >>> ewbay. I >>> >> terminated the simulation manually after 97 hours but find that the >>> >> statistics shows only 87 billion instructions were simulated. I was >>> >> wondering what caused the problem and what is supposed to be the end >>> of >>> >> running of Bbench? Will the simulation exit automatically? How many >>> >> instructions are there if I want to run Bbench to completion? I also >>> >> downloaded an EEMBC benchmark: AndEbench, which is an Android app >>> (.apk >>> >> file). Can I run this app directly on gem5? If so, does anyone know >>> how to >>> >> install and run it on gem5? Thanks!**** >>> >> >>> >> ** ** >>> >> >>> >> ** ** >>> >> >>> >> Best regards**** >>> >> >>> >> Fangfei**** >>> >> >>> >> ** ** >>> >>> >> >>> >> _______________________________________________ >>> >> 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 >> > > > _______________________________________________ > gem5-users mailing list > gem5-users@gem5.org > http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users >
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