arm January 2018

arm@lists.fedoraproject.org

19 participants
21 discussions

Fedora 27 on Banana Pi M64
by Jan Pazdziora 28 Feb '18

28 Feb '18

Hello, I've got Banana Pi M64 on which I am able to run 2017-08-14-ubuntu-16.04-mate-desktop-beta-aarch64-bpi-m64-sd-emmc.img from http://www.banana-pi.org/m64-download.html reasonably well, except for failing WiFi connections to hidden SSID networks and for kodi being unbearably slow, even the UI and mouse movements. So seeing Ubuntu MATE not failing completely, I thought I'd give Fedora a try. I've used Fedora-Minimal-27-1.6.aarch64.raw.xz Upon boot I see U-Boot (?) output and EFI lines and then row of Tuxes and initial boot messages but then my TV goes blank. At no point during the boot (like grub interface) do I have USB (mouse, keyboard) working. When I add the dtb symlink to workaround https://bugzilla.redhat.com/show_bug.cgi?id=1528575 I see wired networking and DHCP working. Upgrading kernel seems to break the wired networking https://bugzilla.redhat.com/show_bug.cgi?id=1528593 but with all the other packages from updates upgraded, the board still works including wired networking and DHCP. The initial-setup.service seems to be looping during the boot and it seems to also affect dnf operations so I've disabled it. Is there any opinion about how well can Banana Pi M64 be supported by Fedora at this point, given that the board seems fine under Ubuntu MATE but that might include some non-OSS bits that we might not want in Fedora. Specifically missing at this point seems to be USB support, console after boot, and WiFi networking. Is there anything which might be useful to try? -- Jan Pazdziora Senior Principal Software Engineer, OpenShift Security Team, Red Hat

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Re: Exactly how slow is Fedora 27 on an RP3 ? dnf update takes hours ?
by linux guy 17 Feb '18

17 Feb '18

I removed the suspect SD card from the RPi3 and tested it in my laptop. # hdparm -Tt /dev/mmcblk0 /dev/mmcblk0: Timing cached reads: 15750 MB in 2.00 seconds = 7893.74 MB/sec Timing buffered disk reads: 88 MB in 3.05 seconds = 28.82 MB/sec <--- This was 365 kB/sec in the RPi3. It seems to test OK in the laptop. Bad connection in the RPi3 ? So I prepared a second class 10 SD card with the same image. I tested it in the laptop that I used to prepare it. # hdparm -Tt /dev/mmcblk0 /dev/mmcblk0: Timing cached reads: 15908 MB in 2.00 seconds = 7973.32 MB/sec Timing buffered disk reads: 54 MB in 3.05 seconds = 17.71 MB/sec The second SD is actually slower to read than the first one, in the laptop. 28.82 versus 17.71 MB/sec I booted the 2nd SD card in the RPi3. # hdparm -Tt /dev/mmcblk0 /dev/mmcblk0: Timing cached reads: 816 MB in 2.00 seconds 408.21 MB/sec Timing buffered disk reads: 66 MB in 3.03 seconds = 21.81 MB/sec <--- Faster than it was in the laptop ! #time dnf update - install 32 packages, update 275, just like last time I ran #time dnf update and stopped it at 47 packages. real: 30m46.181s user: 0.00s sys: 0m.020s I retested the SD card and got the same read speeds as above. On Wed, Jan 24, 2018 at 2:06 PM, Duff, Bryan <bryan.duff1(a)abbott.com> wrote: > That would be a good place to start. FWIW, all my micro SD cards are > Sandisk ultra’s . Unfortunately I don’t see that /sys/block is well > populated (no model). > > > > -Bryan > > > > *From:* linux guy [mailto:linuxguy123@gmail.com] > *Sent:* Wednesday, January 24, 2018 2:51 PM > *To:* Duff, Bryan > *Cc:* Richard Ryniker; arm(a)lists.fedoraproject.org; marcin steć > *Subject:* Re: [fedora-arm] Re: Exactly how slow is Fedora 27 on an RP3 ? > dnf update takes hours ? > > > > Found the issue: > > > > sudo hdparm -Tt /dev/mmcblk0 > > > > /dev/mmcblk0: > > Timing cached reads: 240 MB in 2.00 seconds = 119.84 MB/sec > > Timing buffered disk reads: 2 MB in 5.60 seconds = 365.82 kB/sec > <------ Wow ! > > > > Bad memory card ???? > > > > > > On Wed, Jan 24, 2018 at 1:39 PM, Duff, Bryan <bryan.duff1(a)abbott.com> > wrote: > > Eh, I’ll give it a go… on F26 armhf7l. Keep in mind my repos may be > different, so it might very the timing by maybe 30s? > > > > time sudo dnf install rygel –y > > > > Unfortunately it’s only 21 packages for me. And now that I look at it, > would probably be better to “dnf download” first and time that separately. > > > > //start snip > > … > > Complete! > > > > real 3m34.645s > > user 1m54.094s > > sys 1m19.396s > > # and > > sudo hdparm -Tt /dev/mmcblk0 > > > > /dev/mmcblk0: > > Timing cached reads: 834 MB in 2.00 seconds = 417.21 MB/sec > > Timing buffered disk reads: 68 MB in 3.06 seconds = 22.24 MB/sec > > //end snip > > > > Thanks. > > > > -Bryan > > > > *From:* linux guy [mailto:linuxguy123@gmail.com] > *Sent:* Wednesday, January 24, 2018 2:31 PM > *To:* Richard Ryniker > *Cc:* arm(a)lists.fedoraproject.org; marcin steć > *Subject:* [fedora-arm] Re: Exactly how slow is Fedora 27 on an RP3 ? dnf > update takes hours ? > > > > I just ran #time dnf install rygel on my fresh install. It required 56 > packages. > > > > real 64m43.986s > > user 1m59.778s > > sys 0m25.893s > > > > This is on a console only machine, no GUI. > > > > Could someone run the same process on their RPi3 and see what they get ? > > > > > > This communication may contain information that is proprietary, > confidential, or exempt from disclosure. If you are not the intended > recipient, please note that any other dissemination, distribution, use or > copying of this communication is strictly prohibited. Anyone who receives > this message in error should notify the sender immediately by telephone or > by return e-mail and delete it from his or her computer. > > >

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Using generic tuning form armhfp
by Florian Weimer 07 Feb '18

07 Feb '18

GCC offers a generic tuning option for Arm these days, but we select -mtune=cortex-8a instead. Is this still a good choice? Thanks, Florian

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Out of my element and out of ideas
by Luke Dary 31 Jan '18

31 Jan '18

I've been trying/struggling and failing a lot to get a working installation of Fedora Server onto a couple of SBCs and figured now is the time to ask for help. I have two NanoPi K2s (http://wiki.friendlyarm.com/wiki/index.php/NanoPi_K2) and one ASUS Tinker Board (https://www.asus.com/us/Single-Board-Computer/Tinker-Board/) that work fine with the vendor's images of debian variants, but I can't for the life of me seem to get Fedora working. I've kind of figured out that it is probably u-boot related issues that are preventing the flash of the SD cards from booting, but the random stuff I've tried from the documentation in the Wiki and from assorted places online hasn't yielded success. I'm really hoping someone on this list can help or at least point me in a new direction, and if there are any fellow Red Hatters that work in the Tower that are willing to help I would be happy to bring the devices to work with me if hands-on would make it easier.

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Fedora 28 will not have stack clash protection on armhfp
by Florian Weimer 29 Jan '18

29 Jan '18

Due to bug 1522678, we will not be able to enable -fstack-clash-protection on armhfp. This is unfortunate, but I don't think the lack of upstream support on armhfp should block this feature for all other architectures (including aarch64). Thanks, Florian

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[Talking Points] ARM team
by Alberto Rodriguez Sanchez 28 Jan '18

28 Jan '18

Hi ARM team, I'm Alberto from the marketing team, Talking points are key highlights of the new release. They should be compelling, but they will not necessarily be comprehensive. There are different types of talking points for different types of people: general desktop users/everyone, developers, and sysadmins. For the Fedora 28 cycle, we will also have talking points to address some of the Spins. They are meant to provide a short, effective answer to the question, "What cool stuff is in the latest release of Fedora?" Each cycle, the Marketing team compiles a short list of approximately three talking points for each of these audiences for the upcoming release. So, What is new from the ARM Team side?? If you have a talking point that you feel meets the criteria found on the talking points SOP page at https://fedoraproject.org/wiki/Talking_points_SOP, please let us know. Best Regards, -- Alberto Rodriguez Sanchez <bt0dotninja(a)fedoraproject.org>

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[Fedocal] Reminder meeting : Fedora ARM & AArch64 status meeting
by pwhalen＠redhat.com 28 Jan '18

28 Jan '18

Dear all, You are kindly invited to the meeting: Fedora ARM & AArch64 status meeting on 2018-01-30 from 15:00:00 to 16:00:00 UTC At fedora-meeting-2(a)irc.freenode.net The meeting will be about: Fedora ARM & AArch64 weekly status meeting. More information available at: [https://fedoraproject.org/wiki/Architectures/ARM](https://fedoraproject.org… Source: https://apps.fedoraproject.org/calendar/meeting/8698/

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To those testing Rawhide on AArch64 (grub2-2.02-23.fc28)
by Paul Whalen 28 Jan '18

28 Jan '18

Warning to those testing Rawhide on AArch64, grub2-2.02-23.fc28 will fail on reboot. The package is already fixed in grub2-2.02-24.fc28, to avoid any issues you can install directly from koji[1]. For those with f27-updates-candidate enabled in F27, grub2-2.02-21.fc27 is also broken and fixed with grub2-2.02-22.fc27[2]. If you already installed and your reboot fails, you can replace the 'grubaa64.efi' file on the system with the one from the updated packages (found in grub2-efi-aa64). Example: curl -O https://kojipkgs.fedoraproject.org//packages/grub2/2.02/24.fc28/aarch64/gru… rpm2cpio grub2-efi-aa64-2.02-24.fc28.aarch64.rpm | cpio -idv cp ./boot/efi/EFI/fedora/grubaa64.efi $LOCATION_OF_MEDIA/EFI/fedora/ Paul [1] - https://koji.fedoraproject.org/koji/buildinfo?buildID=1020176 [2] - https://koji.fedoraproject.org/koji/buildinfo?buildID=1020147

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Play DRM content (video) on 64-bit ARM Fedora?
by Toralf Lund 27 Jan '18

27 Jan '18

Hi, Does anyone know if it's in any way possible to play encrypted ("DRM") HTML 5 videos on the 64-bit version of Fedora for ARM, i.e. the aarch64 version? If I install chromium, I get a "libwidevinecdm.so" configuration in "alternatives", which by default points to /usr/lib64/chromium-browser/libwidevinecdm.so.fedora. I suspect that this is just a type of place-holder, though, rather than the a real content decryption module, and I certainly can't play encrypted videos at https://demo.castlabs.com/. I'm using Fedora 27 on a Raspberry Pi 3, and I've installed "chromium-libs-media-freeworld" from RpmFusion for codec support. Help anyone? Related question: Is there any way I can run 32-bit software on a 64-bit installation for ARM, in a similar manner to how I can start i686 programs on x86_64? I think I've found a "real" 32-bit libwidevinecdm.so... I know going 32-bit all the way via the armhfp distribution might be an option, but I've spent *a lot* of time on setting up the aarch64 one, if you know what I'm saying. Thanks, - Toralf

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"alloc_contig_range: ... PFNs busy" on aarch64
by Toralf Lund 27 Jan '18

27 Jan '18

Hi, Another slight problem I have with aarch64 Fedora 27 on my Raspberry Pi 3, is that it spews out console messages of the form alloc_contig_range: ... PFNs busy Essentially, it's the same behaviour as what's described in https://bugzilla.redhat.com/show_bug.cgi?id=1387793, but I'm seeing different address ranges, like [30f00, 31f00), [31000, 32000) and [31800, 32800). There are some more variants, but this morning, they all have one of the 3 starting points indicated here. Questions: 1. Has there been any development related to this issue? 2. Should I file another Bugzilla report - seeing as the original one is closed with INSUFFICIENT_DATA and belongs to a different release? 3. Is there anything I can do to get around the problem, or at least suppress the error messages? (They kind of get in my way right now as I'm experimenting with a framebuffer application.) Thanks, - Toralf

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arm January 2018