Arm-dev

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683 discussions

CentOS 8 and RPI 2/3
by filbar＠centrum.cz 18 Sep '19

18 Sep '19

Hello I hear, that CentOS 8 will arrive next week. Will be there support for RPI 2/3 boards in it? Thanks, Filip Bartmann

2 1

Run C7 armhfp as VM on x86_64?
by Ian Pilcher 17 Sep '19

17 Sep '19

It sure seems like this should be possible, but Googling about and clicking around in virt-manager hasn't really gotten me anywhere. Are there instructions anywhere on how to do this? Thanks! -- ======================================================================== Ian Pilcher arequipeno(a)gmail.com -------- "I grew up before Mark Zuckerberg invented friendship" -------- ========================================================================

6 10

RPI 4B status ?
by Stephan GUILLOUX 22 Aug '19

22 Aug '19

Hi all Is there any status on CentOS running on RPI 4B ? Working ? Not working ? Stephan.

2 3

64 bit image for Raspberry Pi
by Iván Chavero 13 Aug '19

13 Aug '19

Hello, Is there a 64 bit image for Raspberry Pi 3+? If not, is there a guide to build a 64 bit image for it? Cheers, Iván

1 0

Missing some debuginfo packages on armv7hl
by Gordan Bobic 08 Aug '19

08 Aug '19

I'm still trying to hunt down where this SIGILL I'm hitting is coming from, and the next obstacle I've hit is some missing debuginfo packages, specifically: libGLEW-debuginfo libXau-debuginfo libXext-debuginfo mesa-libGLU-debuginfo Any chance those could be added the the debuginfo repository? Without them gdb chokes before it gets to the SIGILL line. Gordan

2 13

Tracking Down "Illegal instruction" Sources
by Gordan Bobic 17 Jul '19

17 Jul '19

I'm trying to track down the executables/libraries that are behind the "Illegal instruction" errors I am seeing on my Tegra 2 devices. It seems a given that this is due to some packages from the GL stack (Mesa, libglvnd, etc.) having been build with assumptions of NEON always being present, but I'm trying to figure out a way to determine this definitively. I have tried the approach along the lines of: objdump -Ds $file | grep -E 'vadd\.|vmul\.' since vadd and vmul are both NEON assembly instructions, but this seems to flag up nearly everything, most of which is in fact working (e.g. Firefox 52.x). So either my approach is wrong or there are many binaries that do some kind of runtime detection and selectively use NEON if supported by the hardware. The reason i am looking into this is because gdm doesn't work without working GL (even software mesa GL). It works on my Chromebook without hardware accelerated drivers, but doesn't work on my Tegra laptop without accelerated drivers. On the Chromebook (Exynos) glxgears runs (albeit slowly), but on Tegra, it crashes with "Illegal instruction". I tried rebuilding libglvnd and mesa on the local machine in a hope that NEON capability is auto-detected but that doesn't seem to have made any difference. Any advice/suggestions/insights gratefully received.

3 3

CentOS and Raspberry Pi 4 (four)
by Winfried de Heiden 10 Jul '19

10 Jul '19

3 3

Mesa and NEON
by Gordan Bobic 02 Jul '19

02 Jul '19

Is mesa built with NEON on armv7hl? I'm finding that various things outright crash with an illegal instruction on Tegra 2, and NEON is the only reason I can think of. If it's built with NEON on armv7hl, it really shouldn't be since NEON isn't mandatory on ARMv7.

1 0

Re: [Arm-dev] Xorg Segfault, Firefox Illegal Instruction
by Gordan Bobic 29 Jun '19

29 Jun '19

Interesting. I don't see any info on how to disable NEON, though, only an insinuation that there is a way. On Sat, Jun 29, 2019 at 3:50 PM Gordan Bobic <gordan.bobic(a)gmail.com> wrote: > Interesting, but I don't see any info on how to disable NEON use in > there... > > On Sat, Jun 29, 2019 at 2:45 PM Pablo Sebastián Greco < > pablo(a)fliagreco.com.ar> wrote: > >> >> El 28/6/19 a las 12:54, Gordan Bobic escribió: >> >> On Fri, Jun 28, 2019 at 4:42 PM Pablo Sebastián Greco < >> pablo(a)fliagreco.com.ar> wrote: >> >>> >>> El 28/6/19 a las 10:38, Gordan Bobic escribió: >>> >>> I took the CentOS 7 arm32 image for a spin today and ran into some >>> issues. Is there a bug tracker that anyone pays attention to for >>> semi-supported altarch like armv7? >>> >>> I'm using a Tegra 2 based system >>> >>> Issues: >>> 1) Xorg segfaults while probing platform, according to the logs. >>> Only solution I have found is to create a new .repo file for CentOS 7.5 >>> and downgrade xorg-x11-server-Xorg to 1.19.x from CentOS 7.5. >>> >>> I thought I had pushed the fix to the fasttrack repo, but I didn't. >>> Here's a fixed version from my tests >>> https://people.centos.org/pgreco/xorg-x11-server/20190507012356/ >>> Anyway, it is already reported in RH, and it seems to be fixed in 7.7 >>> beta and 8.0 >>> >> >> >> Great, thanks. >> Since I posted that I discovered I actually had to roll all the way back >> to Xorg 1.14 from Fedora 20 because the last binary Tegra 2 Nvidia driver >> (I'm on an AC100) is ABI v14. I'm currently wrestling a monstrosity of a >> Tegra 2 GPU kernel driver patch against a mainline kernel that will >> probably take most of a day to compile... >> >> >>> >>> 2) Firefox 60.x dies on startup with an Illegal Instruction error. >>> FF 52.7 from CentOS 7.5 works. >>> >>> That one I haven't seen, I'll try to replicate it in one of my devices >>> and get back to you >>> >> >> Thanks. most appreciated. >> >> Gordan, I don't have good news..., firefox is working normally in my >> rpi3b+, my theory is that you're hitting this >> https://bugzilla.mozilla.org/show_bug.cgi?id=1289569 >> >> Gordan >> >> _______________________________________________ >> Arm-dev mailing listArm-dev@centos.orghttps://lists.centos.org/mailman/listinfo/arm-dev >> >> Pablo. >> _______________________________________________ >> Arm-dev mailing list >> Arm-dev(a)centos.org >> https://lists.centos.org/mailman/listinfo/arm-dev >> >

1 0

Chromium for armv7hl?
by Gordan Bobic 29 Jun '19

29 Jun '19

Is there a rpm-ed Chromium package? Has anyone managed to get this to build on armv7hl recently?

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