arm April 2020

arm@lists.fedoraproject.org

24 participants
19 discussions

The server images are not working with Fedora 31
by Peter Hjalmarsson 04 Aug '20

04 Aug '20

Hi, Just wanted to point out that due to U-Boot not supporting XFS, and Fedora Server has moved to a XFS /boot, the current images as https://dl.fedoraproject.org/pub/fedora/linux/releases/31/Server/aarch64/im… does not boot on any system using U-Boot, like for example the raspberry pi. Best Regards, Peter Hjalmarsson

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CMA on raspberry pi 4
by Thomas H.P. Andersen 04 Aug '20

04 Aug '20

Hi, I have looked into the CMA setting issue a bit. This is what I have found so far. The rpi4 needs CMA to be in ZONE_DMA (lower 1GB of memory) as this is the only area that the peripherals on the rpi4 can address. The DT sets the allowed range to allocate the CMA from ( arch/arm/boot/dts/bcm2711.dtsi#L869 <https://github.com/torvalds/linux/blob/master/arch/arm/boot/dts/bcm2711.dts…>), but it seems to not work here. What does work is instead to set the offset manually. I replaced "cma=256MB" with "cma=256M@704M" and then it boots. Note that it has to be 256M instead of 256MB. Removing the cma option on the command line was known as a workaround. Without that we would fall back to the build config of 64MB cma which was located at offset 0x38000000. This left 64MB at the end of ZONE_DMA, and I chose offset 704M so that those 64MB would still be free. Not sure if that is needed or not. The crashkernel needs to be in ZONE_DMA as well but it seems to be set to 0 size. I have tested on 5.7 rc2 from rawhide. This probably belongs in a bug report. What would be the correct place to file that? From what I can tell upstream has been tested with cma settings without problems (as long as the requested CMA size can fit in ZONE_DMA). From that it seems like fedora-specific issue. Not sure though. Cheers, Thomas

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Workstation on Pinebook Pro
by Ben Cotton 09 Jul '20

09 Jul '20

Hi ARM friends, I've been trying without success to get the F32 Workstation RC1.6 (tomorrow's release) installed on my Pinebook Pro. If anyone here has done it, do you have instructions written up somewhere? One layer of trouble I've had is that the image apparently doesn't have the uboot files. The arm-image-installer script looks for them, AFAICT, in the image, so I called the installer with the PREFIX set to '', which was enough to get the install script to work, but the PBP doesn't boot from the SD card. I also used the 'rock64' target, which seems like it should be the right answer and not 'pinebook' (since the Pinebook uses a different board from the Pinebook Pro). But maybe that's part of my problem, too? -- Ben Cotton He / Him / His Senior Program Manager, Fedora & CentOS Stream Red Hat TZ=America/Indiana/Indianapolis

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Raspberry Pi 4 / Fedora 32 / Kernel 5.6
by ng0177＠gmail.com 30 Apr '20

30 Apr '20

Hi, testing of daily images from https://dl.fedoraproject.org/pub/fedora-secondary/development/32/Workstatio… Raspberry Pi 4 defies the keyboard. I have been under the assumption that 5.6 has support built-in? Any ideas? Thanks, Thomas

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[Fedocal] Reminder meeting : Fedora ARM & AArch64 status meeting
by pwhalen＠redhat.com 26 Apr '20

26 Apr '20

Dear all, You are kindly invited to the meeting: Fedora ARM & AArch64 status meeting on 2020-04-28 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/9431/

1 0

Wandboard Quad RevD1 has no Ethernet in Fedora F31?
by Derek Atkins 22 Apr '20

22 Apr '20

Hi, I just acquired a wandboard quad rev d1 (to replace an older dual-core model), but apparently even though there is a revd1 DTB tree, the ethernet still isn't working. According to http://forums.wandboard.org/viewtopic.php?t=1460 this issue should have been fixed a couple years ago. Is there something special I need to do to get fedora working on this board? I installed Fedora-Minimal-armhfp-31-1.9-sda.raw.xz and it boots but the ethernet shows "no carrier" when I run "ip addr". :-( -derek -- Derek Atkins 617-623-3745 derek(a)ihtfp.com www.ihtfp.com Computer and Internet Security Consultant

3 24

Raspberry Pi GPIO libraries
by Ben Cotton 20 Apr '20

20 Apr '20

Hi ARM team, I've been asked in a GitHub issue[1] if there is any work in progress (or if someone wants to take a look) for getting the GPIO libraries for Raspberry Pi working on Fedora. Someone subsequently posted a link to a BZ[2] where Peter said "the RPIO._GPIO module needs to be updated to work with the new kernel interfaces". Is that still the case? [1] https://github.com/gpiozero/gpiozero/issues/840 [2] https://bugzilla.redhat.com/show_bug.cgi?id=1471731 -- Ben Cotton He / Him / His Senior Program Manager, Fedora & CentOS Stream Red Hat TZ=America/Indiana/Indianapolis

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[Fedocal] Reminder meeting : Fedora ARM & AArch64 status meeting
by pwhalen＠redhat.com 19 Apr '20

19 Apr '20

Dear all, You are kindly invited to the meeting: Fedora ARM & AArch64 status meeting on 2020-04-21 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/9431/

1 0

Upgrading Uboot is insufficient to migrate my F31 system from WB Dual-C1 to Quad-D1
by Derek Atkins 17 Apr '20

17 Apr '20

Hi, All this talk about Wandboard Quad D1 is because I'm trying to upgrade an existing device currently running on a Wandboard Dual C1. It's a system that started as Fedora 25 and was upgraded to Fedora 31 (via dnf system-upgrade). It's been running fine on the Dual. I upgraded the U-boot and it still runs fine on the C1, however if I try to use this SD card in the Quad-D1 I get this during boot: [ 6.841555] Freeing unused kernel memory: 2048K [ 6.848283] ------------[ cut here ]------------ [ 6.852985] WARNING: CPU: 2 PID: 1 at arch/arm/mm/dump.c:248 note_page+0x1604 [ 6.860609] arm/mm: Found insecure W+X mapping at address 0xf0879000 [ 6.866994] Modules linked in: [ 6.870093] CPU: 2 PID: 1 Comm: swapper/0 Not tainted 5.4.17-200.fc31.armv7h1 [ 6.877494] Hardware name: Freescale i.MX6 Quad/DualLite (Device Tree) [ 6.884062] [<c0311264>] (unwind_backtrace) from [<c030b744>] (show_stack+0x) [ 6.891825] [<c030b744>] (show_stack) from [<c0b2d580>] (dump_stack+0xb4/0xd) [ 6.899068] [<c0b2d580>] (dump_stack) from [<c034d5bc>] (__warn+0xdc/0xf8) [ 6.905958] [<c034d5bc>] (__warn) from [<c034d96c>] (warn_slowpath_fmt+0x70/) [ 6.913455] [<c034d96c>] (warn_slowpath_fmt) from [<c03197a8>] (note_page+0x) [ 6.921383] [<c03197a8>] (note_page) from [<c0319a34>] (walk_pgd+0xc8/0xe0) [ 6.928357] [<c0319a34>] (walk_pgd) from [<c0319b10>] (ptdump_check_wx+0x58/) [ 6.935858] [<c0319b10>] (ptdump_check_wx) from [<c0b4182c>] (kernel_init+0x) [ 6.943706] [<c0b4182c>] (kernel_init) from [<c03010e8>] (ret_from_fork+0x14) [ 6.951281] Exception stack(0xee943fb0 to 0xee943ff8) [ 6.956339] 3fa0: 00000000 00000000 00000 [ 6.964524] 3fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000 [ 6.972708] 3fe0: 00000000 00000000 00000000 00000000 00000013 00000000 [ 6.979365] ---[ end trace eb98c3200f90d0b6 ]--- [ 6.984352] Checked W+X mappings: FAILED, 1 W+X pages found [ 6.989965] rodata_test: test data was not read only and the system doesn't come up completely. If I used a fresh Fedora-Minimal-31 on the Quad-D1 (or the Dual-C1) it works fine. Currently the main difference, as far as I can see, is that there is a different kernel. The working system is running 5.3.7-301.fc31.armv7hl whereas the non-working is running 5.4.17-200.fc31.armv7hl. I am currently working on upgrading the Fedora-Minimal to a more recent kernel to try to reproduce the problem; if it doesn't reproduce I will also try to upgrade the existing system. If it DOES reproduce then clearly there's something with the F25->F31 filesystem, and I will have to migrate everything to a fresh install :( I'll let you know in a couple hours how the testing goes -- unless you've seen this before and have an easy fix? -derek -- Derek Atkins 617-623-3745 derek(a)ihtfp.com www.ihtfp.com Computer and Internet Security Consultant

2 3

Funny display on Raspberry Pi
by Toralf Lund 16 Apr '20

16 Apr '20

I have a Raspberry Pi 3B running Fedora AAarch connected to my TV. After installed the latest version 31 updates, the display went weird on me. Monitor preferences list an "unknown" monitor with resolution 1824x984 and refresh rate 77 Hz, and colours are all wrong. What should be red or orange is blue, blue is red or brown, and I'm not really sure what everything else I see on the screen is supposed to look like, but the greens may be more or less right. Any idea what's going on? I'm using the MATE desktop. If I connect my CentOS 7 laptop to the same HDMI port using the same cable, everything seems just fine. - Toralf

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arm April 2020