Arm-dev October 2018

arm-dev@lists.centos.org

13 participants
28 discussions

Qemu Arm Emulator in CentOS host(x86)
by karthi mohanraj 17 Oct '18

17 Oct '18

Hi All, I’m trying to install fedora on QEMU emulator for the ARM. I have followed this documentation using virt-manager in this link: https://fedoraproject.org/wiki/Architectures/ARM/F26/Installation#For_Versa… <https://fedoraproject.org/wiki/Architectures/ARM/F26/Installation#For_Versa…> I was getting USB PCI device error as below. 2018-10-17 12:18:35.914+0000: starting up libvirt version: 3.9.0, package: 14.el7_5.8 (CentOS BuildSystem <http://bugs.centos.org <http://bugs.centos.org/>>, 2018-09-26-18:30:11, x86-01.bsys.centos.org <http://x86-01.bsys.centos.org/>), qemu version: 2.0.0, hostname: localhost.localdomain LC_ALL=C PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin QEMU_AUDIO_DRV=none /usr/bin/qemu-system-arm -name guest=fedora22-arm,debug-threads=on -S -machine virt,accel=tcg,usb=off,dump-guest-core=off -m 2048 -realtime mlock=off -smp 1,sockets=1,cores=1,threads=1 -uuid fc26e72b-3aaa-407b-a4fa-8896bbb8c580 -display none -no-user-config -nodefaults -chardev socket,id=charmonitor,path=/var/lib/libvirt/qemu/domain-30-fedora22-arm/monitor.sock,server,nowait -mon chardev=charmonitor,id=monitor,mode=control -rtc base=utc -no-shutdown -boot strict=on -kernel /var/lib/libvirt/images/arm/vmlinuz-4.8.6-300.fc25.armv7hl -initrd /var/lib/libvirt/images/arm/initramfs-4.8.6-300.fc25.armv7hl.img -append 'console=ttyAMA0 rw root=LABEL=_/ rootwait' -device ich9-usb-ehci1,id=usb -device ich9-usb-uhci1,masterbus=usb.0,firstport=0 -device ich9-usb-uhci2,masterbus=usb.0,firstport=2 -device ich9-usb-uhci3,masterbus=usb.0,firstport=4 -device virtio-scsi-device,id=scsi0 -device virtio-serial-device,id=virtio-serial0 -drive file=/var/lib/libvirt/images/arm/Fedora-Minimal-armhfp-25-1.3-sda.raw,format=raw,if=none,id=drive-scsi0-0-0-0 -device scsi-hd,bus=scsi0.0,channel=0,scsi-id=0,lun=0,drive=drive-scsi0-0-0-0,id=scsi0-0-0-0,bootindex=1 -netdev tap,fd=27,id=hostnet0 -device virtio-net-device,netdev=hostnet0,id=net0,mac=52:54:00:46:70:cb -chardev pty,id=charserial0 -serial chardev:charserial0 -chardev socket,id=charchannel0,path=/var/lib/libvirt/qemu/channel/target/domain-30-fedora22-arm/org.qemu.guest_agent.0,server,nowait -device virtserialport,bus=virtio-serial0.0,nr=1,chardev=charchannel0,id=channel0,name=org.qemu.guest_agent.0 -object rng-random,id=objrng0,filename=/dev/urandom -device virtio-rng-device,rng=objrng0,id=rng0 -msg timestamp=on (process:12978): GLib-WARNING **: gmem.c:483: custom memory allocation vtable not supported char device redirected to /dev/pts/2 (label charserial0) 2018-10-17T12:18:36.052249Z qemu-system-arm: -device ich9-usb-ehci1,id=usb: No 'PCI' bus found for device 'ich9-usb-ehci1' 2018-10-17 12:18:36.282+0000: shutting down, reason=failed Thanks, Karthi

1 0

wlan0: link is not ready
by Robert Moskowitz 15 Oct '18

15 Oct '18

On my Cubietruck, I keep getting: [ 716.571958] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready How can I stop this, as I am not using the wifi? thanks

2 3

Re: [Arm-dev] Cubieboard5 performance
by Pablo Sebastián Greco 13 Oct '18

13 Oct '18

El 9/10/18 a las 14:41, Andreas Reschke escribió: > Am 21.08.18 um 12:14 schrieb arm_ml(a)rirasoft.de: >> El 20/8/18 a las 15:57, Iván Chavero escribió: >>>>>>> >>>>>> I had to apply some patches to the sunxi kernel that were pending >>>>>> to >>>>>> be merged upstream in order to have SMP and HDMI running. >>>>>> I also had to patch the kernel's dtb for the HDMI running (i've >>>>>> been >>>>>> to lazy to send the patch to the kernel list), if you need it i >>>>>> can >>>>>> upload this code to github or i can pack you a kernel+initramfs >>>>>> for >>>>>> you to use it with your cubieboard5 >>>>>> Cheers, >>>>>> Ivan >>>>>> >>>>> Ivan, that kernel has both smp and your patch included ;-). >>>>> Either way, I'll try to update to 4.18 in a few days. >>>>> >>>> Let me know if i can help, i have my cubieboard5 clusters running if >>>> there's need for testing and other stuff. >>>> >>> Iván, I didn't have time today to build 4.18 today, but I pushed >>> 4.17.17, and it should appear here >>> https://armv7.dev.centos.org/repodir/community-kernel-latest/kernel/ >>> between today and tomorrow. >>> It has smp for a83t (bananapi-m3 and cubieborard5) >>> Your hdmi patch for cubieboard5. >>> Some other fixes for R40. >>> >>> It would be great if you could test it. >> >> Hello Pablo, Iván, >> >> thank you very much for your work. With this kernel everything seems >> to work: 8CPUs, Ethernet, USBtoSATA, not tested: HDMI >> >> I'm now in the process to copy everything from SD-Card to the onboard >> EMMC, so I can boot from it. >> >> >> With your work I have a powerfull device. >> >> Thanks >> Andreas >> >> (thinking what can I do with the cubietruck plus: Time-Server (DCF77) >> ? DNS-Server? Pi-Hole? ...?) >> >> PS: sometimes I get these messages in the syslog: >> [ 286.918766] usb usb2-port1: attempt power cycle >> [ 287.295335] ehci-platform 1c1b000.usb: port 1 reset error -110 >> [ 288.193314] ehci-platform 1c1b000.usb: port 1 reset error -110 >> [ 289.033322] ehci-platform 1c1b000.usb: port 1 reset error -110 >> [ 289.873370] ehci-platform 1c1b000.usb: port 1 reset error -110 >> [ 290.713280] ehci-platform 1c1b000.usb: port 1 reset error -110 >> [ 291.344084] usb usb2-port1: Cannot enable. Maybe the USB cable is >> bad? >> >> No USB-Device plugged in. >> _______________________________________________ >> Arm-dev mailing list >> Arm-dev(a)centos.org >> https://lists.centos.org/mailman/listinfo/arm-dev > > Hello Pablo, > > I'm getting more and more failures at the syslog concerning USB (see > above). Is there a solution? Kernel-Update? Sorry, no news about that, have you tested the latest fedora kernel (4.19.x based)?, just to see if anything changes? > > BTW: did the HDD-RAID board work with CentOS and this kernel > (4.17.17-200.el7.armv7hl) ? Haven't tested, but if it doesn't work, let me know and we'll investigate. BTW, I'll be building a test 4.18.14, it should appear tomorrow. (takes a while to build :-)) > > Thanks > > Andreas > > > Pablo

1 0

Re: [Arm-dev] Using zram-swap
by Mark Verlinde 12 Oct '18

12 Oct '18

Being the hidden source of this discussion it's only fair to try to explain the origin. ;) First objective was to get rid of the swap partition: - we do not know upfront the amount of ram and the appropriate swap size for a particular SBC/system - being a hardware guy it does not make sense to me to provide a sap partition while in realty data is written all over the medium (SD card) to level out wear. NOTE this is from my low level hardware perspective there may be compelling arguments from a (high level) system perspective. And yes the most commly offerd 1G is a little comes a little to short for us: We would love to offer a mail-server with antivirus capabilities utilizing Rspamd and ClamAV, and unfortunately CalmAV has a memory foot print of about 650 MB. You may argue this is not feasible. My vredo is you can't be sure before you tried and and squeeze every drop of performance out of out out ar boards. That's why compressed swap-space in memory came up the table. Reading on it got me convinced it's a solution wort to persuit and we are moving to it until proven faulty. here the kickstart files we currently using to make images: https://github.com/markVnl/nethserver-createimg/tree/ks_wip/ks Would love to benchmark; ie craft a test to get some numbers on the table Unfortunaly my knowlage comes to sort to provode this. What can say is my compile time of big demanding packages on a odroid HC1 drop about 20-25%; especially "linking" speeds up remarkable! How can we craft a test? -----Oorspronkelijk bericht----- Afzender: Robert Moskowitz<rgm(a)htt-consult.com> Verstuurd: Vrijdag 12 Oktober 2018 19:36 Aan: Conversations around CentOS on ARM hardware <arm-dev(a)centos.org>; Fred Gleason <fredg(a)paravelsystems.com> Onderwerp: Re: [Arm-dev] Using zram-swap On 10/12/18 1:24 PM, Fred Gleason wrote: On Oct 12, 2018, at 13:15, Gordan Bobic <gordan(a)redsleeve.org <mailto:gordan@redsleeve.org>> wrote: It depends on what you are running on that system. If you have 1GB of RAM and want to run a desktop environment web browser, that'll go pretty poorly without swap. So how does putting swap on RAM help that situation? You’re not increasing the overall memory space by doing so, but merely partitioning it into two different buckets (while also adding the complexity and performance overhead of accessing the part that is now ‘swap’). See Gordon's earlier comment on Firefox's bad memory allocation. Zram is a big help there; I see this on my F29 system. # free total used free shared buff/cache available Mem: 1022148 655520 107204 22284 259424 327636 Swap: 487304 253952 233352 # zramctl NAME ALGORITHM DISKSIZE DATA COMPR TOTAL STREAMS MOUNTPOINT /dev/zram0 lz4 475.9M 246.4M 109.1M 114.2M 2 [SWAP] My mail server can be all over the place on memory and swap usage (it uses real swap file on sata) depending on what all the scanning software is doing and who is using roundcubemail. So YMMV, and this should not hurt if your system does not need to swap. # free total used free shared buff/cache available Mem: 2060396 189332 1189972 26432 681092 1766392 Swap: 982420 0 982420 # zramctl NAME ALGORITHM DISKSIZE DATA COMPR TOTAL STREAMS MOUNTPOINT /dev/zram0 lz4 959.4M 4K 64B 4K 2 <swap> I may switch this setup to a Cubeboard2 (1GB mem) from the Cubietruck. I have a number of C2 and only a couple CT, so if it does not need the memory... Cheers! |----------------------------------------------------------------------| | Frederick F. Gleason, Jr. | Chief Developer | | | Paravel Systems | |----------------------------------------------------------------------| | A room without books is like a body without a soul. | | -- Cicero | |----------------------------------------------------------------------| _______________________________________________ Arm-dev mailing list Arm-dev(a)centos.org <mailto:Arm-dev@centos.org> https://lists.centos.org/mailman/listinfo/arm-dev <https://lists.centos.org/mailman/listinfo/arm-dev> _______________________________________________ Arm-dev mailing list Arm-dev(a)centos.org https://lists.centos.org/mailman/listinfo/arm-dev

2 1

Using zram-swap
by Robert Moskowitz 12 Oct '18

12 Oct '18

I have very recently learned about zram-swap. Fedora-29-arm is using it. It supposedly makes a considerable difference even over HD swap. Since many (potential) users of Centos-arm do not have a ready HD, perhaps we can switch the image from a physical partition to zram? Or at least instructions to change to this on the wiki. Perhaps target the 7.6 image? (is there any information as to when 7.6 may be available?) thanks

4 18

ffmpeg for CentOS 7 armv7hl
by arm_ml＠rirasoft.de 08 Oct '18

08 Oct '18

Hello I search for ffmpeg for CentOS 7 ARM and can't find anything. Only for Fedora. But all RPMs from Fedora I tried have missing dependency. I want to build a converter for my Car-Audio-Player that only accept MP3 and I have over 2TB of FLAC. Thanks Andreas

4 3

Arm Development Using QEMU
by karthi mohanraj 04 Oct '18

04 Oct '18

Hi Marcin & Johnny, Thanks for the reply. My requirement is to setup a VM with aarch64(64 bit arm architecture) on x86_64 host. I have tried installing through virt-manager but i’m getting crash when starting the VM. I have attached the error below. In this, centos-7.2.img is built using virt-builder with lentos-7.2 for the aarch64. ##qemu-system-arm -m 1024 -machine vexpress-a9 -drive file=centos-7.2.img,format=raw,if=ide (process:12672): GLib-WARNING **: gmem.c:483: custom memory allocation vtable not supported pulseaudio: set_sink_input_volume() failed pulseaudio: Reason: Invalid argument pulseaudio: set_sink_input_mute() failed pulseaudio: Reason: Invalid argument qemu: fatal: Trying to execute code outside RAM or ROM at 0x04000000 R00=00000000 R01=00000000 R02=00000000 R03=00000000 R04=00000000 R05=00000000 R06=00000000 R07=00000000 R08=00000000 R09=00000000 R10=00000000 R11=00000000 R12=00000000 R13=00000000 R14=00000000 R15=04000000 PSR=400001d3 -Z-- A svc32 s00=00000000 s01=00000000 d00=0000000000000000 s02=00000000 s03=00000000 d01=0000000000000000 s04=00000000 s05=00000000 d02=0000000000000000 s06=00000000 s07=00000000 d03=0000000000000000 s08=00000000 s09=00000000 d04=0000000000000000 s10=00000000 s11=00000000 d05=0000000000000000 s12=00000000 s13=00000000 d06=0000000000000000 s14=00000000 s15=00000000 d07=0000000000000000 if i use virtio for the drive interface. i’m getting below error. ##qemu-system-arm -m 1024 -machine vexpress-a9 -drive file=centos-7.2.img,format=raw,if=virtio (process:14847): GLib-WARNING **: gmem.c:483: custom memory allocation vtable not supported pulseaudio: set_sink_input_volume() failed pulseaudio: Reason: Invalid argument pulseaudio: set_sink_input_mute() failed pulseaudio: Reason: Invalid argument qemu-system-arm: -drive file=centos-7.2.img,format=raw,if=virtio: No 'PCI' bus found for device 'virtio-blk-pci' Regards, karthi On 09/30/2018 08:08 AM, Marcin Juszkiewicz wrote: > W dniu 28.09.2018 o 12:42, karthi mohanraj pisze: >> Hi All, >> >> I’m a newbie to arm architecture. I want to setup a development VM >> with ARMv8 board using QEMU/KVM on CentOS based host. Is there any >> documentation available to try out? >> >> Or is there any other easy way to achieve this as i need to have a >> Development setup for CentOS? >> >> Please suggest me if any other better way to achieve this. > Easiest? Install AAVMF (uefi firmware for armv8), virt-manager and > qemu-system-arm. > > Run Virt-manager, choose 'new VM', open architecture chooser, select > aarch64. Give it hdd, install iso and go. You can also follow this guide to install a 32 bit VM on an aarch64 host, if 32 bit arm is what you want to dev on: https://www.arrfab.net/posts/2017/Sep/29/using-centos-7-armhfp-vm-on-centos… <https://www.arrfab.net/posts/2017/Sep/29/using-centos-7-armhfp-vm-on-centos…> Thanks, Johnny Hughes

2 1

Arm Development Using QEMU
by karthi mohanraj 02 Oct '18

02 Oct '18

Hi All, I’m a newbie to arm architecture. I want to setup a development VM with ARMv8 board using QEMU/KVM on CentOS based host. Is there any documentation available to try out? Or is there any other easy way to achieve this as i need to have a Development setup for CentOS? Please suggest me if any other better way to achieve this. Thanks, Karthi

3 2

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

Arm-dev October 2018