Hi Ivan,
Can you show us more of the output. Does it recognize the PCI devices? What version of gem5 are you running. The patches required were just committed last week. Ali On 15.09.2014 02:08, Ivan Stalev via gem5-users wrote: > Hi Ali and Andreas, > > When I try to boot the client-server system for arm64 with the latest gem5 > revision (10369) I get a kernel panic: > > [ 6.660806] VFS: Cannot open root device "sda1" or unknown-block(0,0): error > -6 > [ 6.660807] Please append a correct "root=" boot option; here are the > available partitions: > [ 6.660809] Kernel panic - not syncing: VFS: Unable to mount root fs on > unknown-block(0,0) > [ 6.660810] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 3.16.0-rc6 #2 > [ 6.660810] Call trace: > [ 6.660811] [<ffffffc000087fb4>] dump_backtrace+0x0/0x130 > [ 6.660813] [<ffffffc0000880f4>] show_stack+0x10/0x1c > [ 6.660814] [<ffffffc0004efcfc>] dump_stack+0x74/0xb8 > [ 6.660815] [<ffffffc0004ef054>] panic+0xe0/0x218 > [ 6.660816] [<ffffffc000699e74>] mount_block_root+0x1d0/0x270 > [ 6.660817] [<ffffffc00069a024>] mount_root+0x110/0x130 > [ 6.660818] [<ffffffc00069a17c>] prepare_namespace+0x138/0x184 > [ 6.660819] [<ffffffc000699ae8>] kernel_init_freeable+0x1b8/0x1dc > [ 6.660821] [<ffffffc0004ed428>] kernel_init+0x10/0xd4 > [ 6.660822] ---[ end Kernel panic - not syncing: VFS: Unable to mount root fs > on unknown-block(0,0) > > I built the kernel according to Ali's instructions. The command line I use > is: > > ./build/ARM/gem5.fast -d m5out/dual-test configs/example/fs.py > --machine-type=VExpress_EMM64 > --kernel=..path../linux-aarch64-gem5-4003908/vmlinux > --dtb-filename=..path../rtsm_ve-aemv8a-5core.dtb --mem-size=4GB > --cpu-type=atomic --cpu-clock=2GHz --dual > > What am I missing? > > Thanks, > > Ivan > > On Thu, Aug 28, 2014 at 2:29 PM, Ali Saidi via gem5-users > <gem5-users@gem5.org> wrote: > > You should be able to get a new working kernel with PCIe support for AArch64 > like the following, however you'll need all the patches that Andreas just > mentioned in an email to gem5-dev as committed next week. > > wget > "http://www.linux-arm.org/git?p=linux-aarch64-gem5.git;a=snapshot;h=400390889828685d432d38406cbd9c7afceeaa15;sf=tgz > [1]" -O linux-aarch64-gem5.tgz > tar zxvf linux-aarch64-gem5.tgz > cd linux-aarch64-gem5-4003908 > make ARCH=arm64 CROSS_COMPILE=aarch64-none-elf- gem5_defconfig > make ARCH=arm64 CROSS_COMPILE=aarch64-none-elf- -j4 > > Thanks, > Ali > > From: Ali Saidi via gem5-users <gem5-users@gem5.org> > Reply-To: Ali Saidi <sa...@umich.edu>, gem5 users mailing list > <gem5-users@gem5.org> > Date: Saturday, August 23, 2014 at 2:21 PM > To: Ivan Stalev <ids...@psu.edu>, gem5 users mailing list > <gem5-users@gem5.org> > > Subject: Re: [gem5-users] ARMv8 Client-Server configuration > > You're not going to have any support for PCIe device with that kernel. We're > working on the last bit of debugging and polishing around a kernel that will > support it -- I intended to have it out 2 weeks ago, but we're still > diligently working and it should be out in the next couple of days. > > Ali > > On Aug 20, 2014, at 10:36 AM, Ivan Stalev <ids...@psu.edu> wrote: > > Edit: I was using my own compiled kernel. I am now using the default kernel, > vmlinux-3.14-aarch64-vexpress-emm64, and it appears not to crash. I will go > ahead and test it out. > > On Wed, Aug 20, 2014 at 11:19 AM, Ivan Stalev <ids...@psu.edu> wrote: > > Hi Andreas, > > No problem, I figured it wasn't the 80 char README file patch :) > > I applied the 7 patches you posted this morning, but now when I run in dual > mode, gem5 crashes with this: > > panic: M5 panic instruction called at pc=0xffffffc00008a024. > @ tick 58408160 > [execute:build/ARM/arch/arm/generated/exec-ns.cc.inc, line 241403] > > The GDB backtrace from gem5.debug suggests that execution is somehow killed > from a manually inserted breakpoint. > > This is also after I had to hardcode the DTB file name for the drivesys in > /src/arch/arm/linux/system.cc [2] since it was not picking it up from the > command line... > > warn: Kernel supports device tree, but no DTB file specified > fatal: Expected a single ATAG memory entry but got 3 > @ tick 58402784 > [initState:build/ARM/arch/arm/linux/system.cc [2], line 202] > > Can you share how you tested the client-server configuration? > > Thank you, > > Ivan > > On Wed, Aug 20, 2014 at 4:45 AM, Andreas Hansson <andreas.hans...@arm.com> > wrote: > > Hi Ivan, > > Just following up on this one. I posted the patches yesterday morning, but > forgot to "Publish" then. Sorry about the misunderstanding. They are all > there now. > > Andreas > > From: Andreas Hansson via gem5-users <gem5-users@gem5.org> > Reply-To: Andreas Hansson <andreas.hans...@arm.com>, gem5 users mailing list > <gem5-users@gem5.org> > Date: Tuesday, 19 August 2014 18:48 > To: Ivan Stalev <ids...@psu.edu>, gem5 users mailing list > <gem5-users@gem5.org>, Ali Saidi <sa...@umich.edu> > > Subject: Re: [gem5-users] ARMv8 Client-Server configuration > > Hi Ivan, > > The patches are on the review board as of this morning (UK time). > > Comments are welcome as always. > > Andreas > > From: Ivan Stalev via gem5-users <gem5-users@gem5.org> > Reply-To: Ivan Stalev <ids...@psu.edu>, gem5 users mailing list > <gem5-users@gem5.org> > Date: Tuesday, 19 August 2014 18:44 > To: Ali Saidi <sa...@umich.edu> > Cc: gem5 users mailing list <gem5-users@gem5.org> > Subject: Re: [gem5-users] ARMv8 Client-Server configuration > > Hi Ali, > > Have you had the chance to look at the issue or have some suggestions as to > which source files to look at? > > Thanks, > > Ivan > > On Fri, Aug 8, 2014 at 8:34 PM, Ali Saidi <sa...@umich.edu> wrote: > Hi Ivan, > > The kernel that you're using and the currently gem5 don't support pci devices > with arm64. I hope to remedy this within a week. > > Thanks, > Ali > > On Aug 6, 2014, at 3:42 PM, Ivan Stalev via gem5-users <gem5-users@gem5.org> > wrote: > >> Hi everyone, >> >> I am trying to run a client-server setup using arm64. I am using the >> (latest) linaro kernel (3.16) and disk image suggested on the GEM5 downloads >> page. Simply building the kernel with defconfig (as recommended in the >> README) does not seem to setup the ethernet drivers. Running "ifconfig -a" >> only yields the loopback device/interface. >> >> I then opened up the .config (generated by defconfig) using menuconfig and >> enabled all the settings related to ethernet and re-built the kernel. After >> booting, "ifconfig -a" results in this: >> >> bond0 Link encap:Ethernet HWaddr CA:FB:D0:02:D0:7E >> BROADCAST MASTER MULTICAST MTU:1500 Metric:1 >> RX packets:0 errors:0 dropped:0 overruns:0 frame:0 >> TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 >> collisions:0 txqueuelen:0 >> RX bytes:0 (0.0 B) TX bytes:0 (0.0 B) >> >> dummy0 Link encap:Ethernet HWaddr 02:58:3E:AF:F3:41 >> BROADCAST NOARP MTU:1500 Metric:1 >> RX packets:0 errors:0 dropped:0 overruns:0 frame:0 >> TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 >> collisions:0 txqueuelen:0 >> RX bytes:0 (0.0 B) TX bytes:0 (0.0 B) >> >> lo Link encap:Local Loopback >> inet addr:127.0.0.1 Mask:255.0.0.0 >> UP LOOPBACK RUNNING MTU:65536 Metric:1 >> RX packets:8 errors:0 dropped:0 overruns:0 frame:0 >> TX packets:8 errors:0 dropped:0 overruns:0 carrier:0 >> collisions:0 txqueuelen:0 >> RX bytes:784 (784.0 B) TX bytes:784 (784.0 B) >> >> I tried running the sample client-server rcS scripts and tried both dummy0 >> and bond0, but pings did not go through. From others' posts and sample rcS >> scripts, it seems that GEM5 expects eth0. >> >> Does anyone know if client-server is supported for arm64 in GEM5, and if so, >> how to get them to communicate? I am using the latest GEM5 revision (10240). >> >> Thanks! >> > _______________________________________________ >> gem5-users mailing list >> gem5-users@gem5.org >> http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users [3] > > -- IMPORTANT NOTICE: The contents of this email and any attachments are > confidential and may also be privileged. If you are not the intended > recipient, please notify the sender immediately and do not disclose the > contents to any other person, use it for any purpose, or store or copy the > information in any medium. 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