linaro-dev December 2013

linaro-dev@lists.linaro.org

10 participants
13 discussions

Google hangout not working in debian sid/testing

by Nicolas Dechesne

hi, first of all, this isn't meant to be a distro trolling discussion, there are better places for that ;-) several days ago google HO started to fail after updating my debian/sid setup. as discussed on G+ [1] and on googlegroups [2], that seemed to be impacting anyone on debian/sid. when i realized that it was working on debian/testing (Jessie) i decided just use 'testing'... however since last evening update on 'testing', it started to fail too.. leaving me without any working HO at all, which is quite inconvenient at Linaro.. after bisecting my system using snapshot.debian.org, i figured out which package was the culprit: # apt-cache policy libcairo2 libcairo2: Installed: 1.12.14-4 Candidate: 1.12.14-4 Package pin: 1.12.14-4 Version table: 1.12.16-2 1001 500 http://ftp.fr.debian.org/debian/ testing/main amd64 Packages *** 1.12.14-4 1001 500 http://snapshot.debian.org/archive/debian/20130927T214600Z/testing/main amd64 Packages 100 /var/lib/dpkg/status Simply downgrading libcairo2 [3] 'fixes' the problem. I know it's not 'fixing' it really, but i hope that this will be enough information so that the real fix is uploaded. In the mean time, if any of use use Debian , you can use that as a workaround.. cheers nico [1] https://plus.google.com/u/0/108790110407014289037/posts/5q22d1ReavG [2] https://productforums.google.com/d/msg/hangouts/vYsaeEnXJXs/hOy2HaW5LKoJ [3] http://snapshot.debian.org/archive/debian/20130927T214600Z/pool/main/c/cair…

10 years

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

10 years, 3 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

10 years, 4 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

10 years, 4 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.

10 years, 4 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

10 years, 4 months

Test Result Summary of Linux Linaro Android 13.12 Release.

by Soumya Basak

Linaro Android 13.12 Release (Calender Week 51): Here is the test result summary for Linux Linaro Android image on following targets: 1) TI-Panda 4430; 2) TI-Panda 4460; 3) Samsung Arndale; 4) Galaxy Nexus; 5) ARM Versatile Express TC2 LSK; 6) ARM Versatile Express A9; 7) ARM Versatile Express TC2; 1. TI-Panda 4430 + Linux Linaro Android (Column: F) https://docs.google.com/a/linaro.org/spreadsheet/ccc?key=0AkxwyUNxNaAadGVWd… 2. TI-Panda 4460 + Linux Linaro Android (Column: F) https://docs.google.com/a/linaro.org/spreadsheet/ccc?key=0AkxwyUNxNaAadGVWd… 3. Samsung Arndale + Linux Linaro Android (Column: F) https://docs.google.com/a/linaro.org/spreadsheet/ccc?key=0AuNOCeo15fRHdDFaR… 4. Galaxy Nexus + Linux Linaro Android (Column: F) https://docs.google.com/a/linaro.org/spreadsheet/ccc?key=0AuNOCeo15fRHdFhhe… 5. ARM Versatile Express TC2 LSK + Linux Linaro Android (Column: L) https://docs.google.com/a/linaro.org/spreadsheet/ccc?key=0AkxwyUNxNaAadExQd… 6. ARM Versatile Express A9 + Linux Linaro Android (Column: F) https://docs.google.com/a/linaro.org/spreadsheet/ccc?key=0AkxwyUNxNaAadExQd… 7. ARM Versatile Express TC2 + Linux Linaro Android (Column: S) https://docs.google.com/a/linaro.org/spreadsheet/ccc?key=0AkxwyUNxNaAadExQd… For Linux Linaro Android consolidated test result spreadsheet, please refer to this link: https://docs.google.com/a/linaro.org/spreadsheet/ccc?key=0AgB-fT5LL31CdFBSN… Thank you. Best Regards Soumya Basak.

10 years, 4 months

Test Result Summary of Linux Linaro ubuntu 13.12 Release.

by Botao Sun

Linaro 13.12 Release (Calendar Week 51): Here is the test result summary for Linux Linaro ubuntu Saucy image on following targets: 1) Samsung Arndale; 2) TI Panda 4430; 3) TI Panda 4460; 1. Samsung Arndale + Linux Linaro Saucy (Column AO): https://docs.google.com/a/linaro.org/spreadsheet/ccc?key=0AgB-fT5LL31CdGZJS… 2. TI Panda 4430 + Linux Linaro Saucy (Column AV): https://docs.google.com/a/linaro.org/spreadsheet/ccc?key=0AroPySpr4FnEdEwwZ… 3. TI Panda 4460 + Linux Linaro Saucy (Column AV): https://docs.google.com/a/linaro.org/spreadsheet/ccc?key=0AroPySpr4FnEdEwwZ… For consolidated test result spreadsheet, please refer to this link: https://docs.google.com/a/linaro.org/spreadsheet/ccc?key=0AgB-fT5LL31CdDdWZ… Thank you. Best Regards Botao Sun

10 years, 4 months

Linux Core PM cpu_suspend() consolidation

by sandeep tripathy

Is there any rational why flush_cache_louis is necessary in cpu_suspend() funciton ? After saving the context it does DCCIMVA ie writes to POC the affected lines. So why we should clean the entire L1 here ? It rather should be left to the platform dependent function called after __cpu_suspend ? flush_cache_louis does not disable the d cache. This is not the recommended sequence for core power down. Thanks Sandeep Tripathy Broadcom

10 years, 4 months

Test Result Summary of Calendar Week 50, 2013 for Linux Linaro Android

by Soumya Basak

Calendar Week 50 2013: Here is test result summary for Linux Linaro Android image on following boards: 1) TI-Panda 4460 2) TI-Panda 4430; 3) Samsung Arndale; 4) Galaxy Nexus; 5) ARM Versatile Express A9; 6) ARM Versatile Express LSK TC2; 1. TI-Panda 4460 + Linaro Android 4.4 (Column: BM): https://docs.google.com/a/linaro.org/spreadsheet/ccc?key=0AkxwyUNxNaAadGVWd… 2. TI-Panda 4430 + Linaro Android 4.4 (Column: BM): https://docs.google.com/a/linaro.org/spreadsheet/ccc?key=0AkxwyUNxNaAadGVWd… 3. Samsung Arndale + Linaro Android 4.4 (Column: W): https://docs.google.com/a/linaro.org/spreadsheet/ccc?key=0AuNOCeo15fRHdDFaR… 4) Galaxy Nexus + Linaro Android 4.4 (Column: Q): https://docs.google.com/a/linaro.org/spreadsheet/ccc?key=0AuNOCeo15fRHdFhhe… 5) ARM Versatile Express A9 + Linaro Android 4.4 (Column: BL): https://docs.google.com/a/linaro.org/spreadsheet/ccc?key=0AkxwyUNxNaAadExQd… 6) ARM Versatile Express LSK TC2 + Linaro Android 4.3.1 (Column: K): https://docs.google.com/a/linaro.org/spreadsheet/ccc?key=0AkxwyUNxNaAadExQd… Thank You. Best Regards Soumya Basak.

10 years, 4 months

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linaro-dev December 2013