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4332 discussions

Test Result Summary of Calendar Week 3, 2014 for Linux Linaro ubuntu Saucy.

by Botao Sun

Calendar Week 3 2014: Here is test result summary for Linux Linaro ubuntu Saucy image on following boards: 1) Samsung Arndale; 2) TI Panda 4430; 3) TI Panda 4460. 1. Samsung Arndale + Linux Linaro Saucy (Column AP): https://docs.google.com/a/linaro.org/spreadsheet/ccc?key=0AgB-fT5LL31CdGZJS… 2. TI Panda 4430 + Linux Linaro Saucy (Column AW): https://docs.google.com/a/linaro.org/spreadsheet/ccc?key=0AroPySpr4FnEdEwwZ… 3. TI Panda 4460 + Linux Linaro Saucy (Column AW): https://docs.google.com/a/linaro.org/spreadsheet/ccc?key=0AroPySpr4FnEdEwwZ… For Linaro 13.12 monthly release test summary, please refer to attachment. Thank you. Best Regards Botao Sun

11 years, 9 months

Galaxy Nexus: 13.10 Linaro android prebuilt image freezes at boot splash

by Chao Xu

Hello, I used the merge-gnexus-blobs script to flash the prebuilt image. The script worked smoothly except the make_ext4fs gave me a segmentation fault. So instead I just downloaded a prebuilt binary of make_ext4fs from here: https://code.google.com/p/archlive/downloads/detail?name=make_ext4fs.7z Then the script ran to the end and the phone rebooted. But it freezed at the boot splash of "google". My host is running ubuntu 12.04 64bit. I couldn't think of anyway to debug this problem and google doesn't help much. So any suggestion is appreciated. Thanks! -- Regards, Chao Xu

11 years, 9 months

cpufrequency ondemand governor question

by Sriram V

I am seeing a behaviour where the load variations are very frequency between 1ghz and 300mhz in a very short interval of time giving the ping-pong effect. \ Is there a way of avoiding this Also, is it possible to find out which task is causing this behaviour. All this happens in a couple of sampling periods of ondemand. -- Regards, Sriram

11 years, 10 months

Anyone using virtio on armv7?

by Ryan Harkin

Hello, I'm trying to fire up an ARM fastmodel using a virtio block device rather than the emulated MMC block device. UEFI is reading the kernel & DTB off the virtio device, so I know the device is present. I added this to my kernel config: diff --git a/linaro/configs/vexpress.conf b/linaro/configs/vexpress.conf index 83acca8..2582450 100644 --- a/linaro/configs/vexpress.conf +++ b/linaro/configs/vexpress.conf @@ -58,3 +58,12 @@ CONFIG_LEDS_GPIO=y CONFIG_LEDS_TRIGGERS=y CONFIG_LEDS_TRIGGER_HEARTBEAT=y CONFIG_LEDS_TRIGGER_CPU=y +CONFIG_NET_9P=y +CONFIG_NET_9P_VIRTIO=y +CONFIG_VIRTIO_BLK=y +CONFIG_VIRTIO_NET=y +CONFIG_VIRTIO_CONSOLE=y +CONFIG_VIRTIO=y +CONFIG_VIRTIO_BALLOON=y +CONFIG_VIRTIO_MMIO=y +CONFIG_VIRTIO_MMIO_CMDLINE_DEVICES=y So far, I don't see any vda devices being enumerated (or any other virtio messages) and it rootwaits for /dev/vda2. I'm launching the model like this: FVP_VE_Cortex-A15x1 -C motherboard.flashloader0.fname=$UEFI -C motherboard.flashloader1.fname=uefi-vars.fd -C motherboard.flashloader1.fnameWrite=uefi-vars.fd -C motherboard.pl011_uart0.unbuffered_output=true -C motherboard.smsc_91c111.enabled=1 -C motherboard.hostbridge.userNetworking=1 -C motherboard.virtioblockdevice.image_path=linaro.img My kernel boot log is here: https://pastebin.linaro.org/view/97165b9e Model version: Fast Models [8.3.44 (Nov 20 2013)] Anyone had better luck using virtio on armv7 models and have any insights? Cheers, Ryan.

11 years, 10 months

GSOC results example

by Renato Golin

One example of the kind of results that come from a GSOC project: http://flang-gsoc.blogspot.ie/2013/09/end-of-gsoc-report.html Might be worth thinking about it next year? cheers, --renato

11 years, 10 months

Back from parental leave

by Arnd Bergmann

Happy New Year everyone! I'm starting to resume my regular work schedule in Linaro and as the arm-soc co-maintainer now, after five months of parental leave and a bit of vacation. I have started following the mailing lists and replying to more work email a couple of weeks ago, but today is the first day that I'm planning to actually spend entirely on getting set up for productive work myself again. Many thanks to Kevin, Linus and everyone else who has been stepping in for me in the meantime! As Deepak Saxena is now on on leave, I will be taking over some of his work until he returns, and I also need to catch up with what has been going on. I have added a number of people on Cc that I'd like to talk to at some point. I don't yet have any scheduled meetings, so if you'd like to catch up, please just find me on IRC at a time that is convenient for you, I'd be happy to call you back on the phone or just talk on IRC. I should be available most days between 9:00 and 16:00 UTC. I have not yet looked at the current contents of the arm-soc tree, I guess I will have a chat with Olof and Kevin first and then get back into merging and testing branches. Arnd

11 years, 10 months

Preview of gccgo/go on arm64 available

by Michael Hudson-Doyle

Hi all, I'd like to announce the availability of a preview/prototype of Go for arm64 platforms. This is based around gccgo but includes a version of the 'go' tool for your familiar "go get" experience. This release is based on the latest Ubuntu development version, Trusty Tahr and contains gccgo 4.8 (implementing Go 1.1, and containing all bugfixes I am aware of) and a version of the Go tool built from: https://github.com/mwhudson/faux/tree/v1.1.2 (This is a fork of cmd/go from Go 1.1.2 with some bugfixes and enhancements to work better when used with gccgo). The easiest way to get started is to download the image I built for use with the foundation model which is available here: http://people.linaro.org/~mwhudson/go-preview/go-tool-preview-rootfs.img.xz To use the image, follow the instructions from https://wiki.ubuntu.com/ARM64/FoundationModel but use my .img rather than the ubuntu-core one, and log in with ubuntu/ubuntu rather than root/root. If you just want to see the go tool itself, you can download binaries: http://people.linaro.org/~mwhudson/go-preview/go http://people.linaro.org/~mwhudson/go-preview/go-static ("go" links against libgo.so.4, i.e. libgo from gccgo 4.8, and "go-static" is, I hope unsurprisingly, statically linked). I've also uploaded the rootfs I built the image out of: http://people.linaro.org/~mwhudson/go-preview/go-tool-preview-rootfs.tar.xz It ought to be possible to use this with qemu as described at: https://wiki.debian.org/Arm64Qemu but when I tried it segfaulted. YMMV! I'd love to hear your experiences using this, I'm sure there are bugs aplenty, but we have to start somewhere! Cheers, mwh

11 years, 10 months

[Script]: Get isolation time of a CPU with NO_HZ_FULL

by Viresh Kumar

Hi Kevin, I have updated the script you shared here: https://wiki.linaro.org/WorkingGroups/PowerManagement/Doc/AdaptiveTickless?… to get the time for which cpu wasn't getting interrupted. Probably this might be useful for few other folks as well and so sharing it.. I am bad at scripting, so please ignore silly code in there :) So, the script will take a parameter, i.e. number of samples you need and will output the amount of time CPU1 (of a dual-core machine) was isolated. There is a variable "isdebug", which can be used to enable/disable debug messages. Let me know if there is something really stupid in it :) -- viresh

11 years, 10 months

Test result summary of Linaro OpenEmbedded on ARM Versatile Express A9.

by Soumya Basak

Linaro Openembedded (Calender week 51): Here is the test result spreadsheet (Column E) for OpenEmbedded ARMv7 ALIP image on ARM Versatile Express A9: https://docs.google.com/a/linaro.org/spreadsheet/ccc?key=0AgB-fT5LL31CdDhwR… Linaro Openembedded ARMv8 uefi based Lamp image (Column: D) https://docs.google.com/a/linaro.org/spreadsheet/ccc?key=0AgB-fT5LL31CdDhwR… Thanks. Best Regards Soumya Basak.

11 years, 10 months

sqlite databases for testing

by Tom Gall

Hi, I am doing some work to optimize sqlite to utilize a GPU for acceleration. One thing missing, I really should have some "reasonable" populated sqlite databases of some amount of size. I can create contrived examples but I think it might be advantageous to utilize some real world sqlite databases. This presumes of course that it doesn't have sensitive data and can be shared. Appreciate any pointers. Thanks! -- Regards, Tom "Where's the kaboom!? There was supposed to be an earth-shattering kaboom!" Marvin Martian Tech Lead, Graphics Working Group | Linaro.org │ Open source software for ARM SoCs w) tom.gall att linaro.org h) tom_gall att mac.com

11 years, 10 months

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