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ARM64 – Pi 4 USB Problems – And a Messy Fix..

Adventures With Linux ™ Posted on May 11, 2021 by RGMay 11, 2021

After some delay, I finally had a ‘good’ cooling solution for my 8GB Pi4, and resumed testing.. The last Kernel version I had running on it was 5.9-rc4, and everything seemed to be working OK (including 8GB of memory recognised). I then updated to 5.11.18, and found that none of the USB ports worked: # dmesg |grep … Continue reading →

Posted in aarch64, Crash and Burn.., Fedora, fix, Hacks, kernel, Linux / ARM, Opinion, patches, quirks, Raspberry Pi 4 | Tagged 5.10.34 fails, 5.11.18 with RH patchset, 5.12 fails, 5.13-rc fails, 5.9.16 works, 8gb, pi4, usb fails, workaround | 3 Replies

NVIDIA – An Acceptable ‘Taint’ Workaround for Kernel 5.9..

Adventures With Linux ™ Posted on October 14, 2020 by RGOctober 14, 2020

Thanks to mbod, there is a simple kernel patch to restore the Kernel 5.8 ‘inherited taint’ behaviour to Kernel 5.9, and the detail is in this thread:  https://forums.developer.nvidia.com/t/opencl-not-working-with-kernel-5-9/156941/6 I have applied this to Kernel 5.9.0, and NVIDIA driver 455.28 now installs and loads/runs OK.    Until a proper fix is available, this will – of course – need … Continue reading →

Posted in kernel, Linux, NVIDIA, Opinion, patches | Tagged inherited taint, kernel 5.9, nvidia, simple patch, taint, workaround | 3 Replies

Kernel – 5.9-rc6 – Rare Compile Fail!

Adventures With Linux ™ Posted on September 20, 2020 by RGSeptember 20, 2020

Kernel 5.9-rc6 has been released, and brief details are here:  http://lkml.iu.edu/hypermail/linux/kernel/2009.2/05870.html In a very rare occurrence, the kernel compile actually fails: …………………………….. CALL scripts/checksyscalls.sh CALL scripts/atomic/check-atomics.sh DESCEND objtool CHK include/generated/compile.h CC drivers/dax/super.o drivers/dax/super.c:325:6: error: redefinition of ‘dax_supported’ 325 | bool dax_supported(struct dax_device *dax_dev, struct block_device *bdev, | ^~~~~~~~~~~~~ In file included from drivers/dax/super.c:16: ./include/linux/dax.h:162:20: note: previous definition … Continue reading →

Posted in compilation, Hacks, kernel, Linux, NVIDIA, Opinion, VMware | Tagged inherited taint, kernel 5.9-rc6, nvidia 450.66 455.23.04, nvidia-uvm, patched, rare compile fail, revert dax patch, vmware 16 ok, workaround | 1 Reply

ARM64 – Fedora 33 Pre-release Kernel Boot Problem – and Workaround..

Adventures With Linux ™ Posted on August 26, 2020 by RGAugust 26, 2020

I have been testing Fedora 33 pre-release, and on x86_64 it seems relatively stable (usual caveats…) but on arm64 systems (Odroid N2 and Pi4) I found that after compiling a new kernel (5.8.3), the system booted, but login was impossible, and screen output was missing  (uart/console was OK). Kernels compiled with Fedora 32 all booted OK, and … Continue reading →

Posted in aarch64, ARM64, boot, compilation, Crash and Burn.., Fedora, Hacks, kernel, Linux / ARM, Odroid N2, Opinion | Tagged arm64, boot problem, cross-compile, fedora 33, kernel 5.8.3, login imposssible, modules not loading, timeout, workaround, x86_64 ok | Leave a reply

Ethernet – e1000e – The Saga Continues..

Adventures With Linux ™ Posted on January 13, 2020 by RGJanuary 13, 2020

After more testing, it appears that there is still a problem with the Intel e1000e driver and some – but not all – supported NICs.. I have several ex-HP systems that have Intel NICs, and some have more than one.   The HP Z820 has two (different models..): $ lspci |grep Eth 00:19.0 Ethernet controller: Intel Corporation 82579LM … Continue reading →

Posted in Ethernet, Fedora, hardware, Intel, kernel, Linux, Network, Opinion, some systems ok | Tagged constant up/down, e1000e, ethernet, intel, problems, revert patch, some nics ok, workaround | Leave a reply

Ethernet – Intel e1000e OK with some Kernel 5.4 Systems, but not all?

Adventures With Linux ™ Posted on November 24, 2019 by RGNovember 24, 2019

After updating my main HP Z820 system to Kernel 5.4, I found that the previous Intel e1000e Ethernet problem I had encountered on my test system with Kernel 5.4-rc6 seemed to have reappeared. (see http://rglinuxtech.com/?p=2632 ). But – this time, two of my systems with e1000e drivers were OK, but the third – the HP Z820 – … Continue reading →

Posted in Ethernet, hardware, Intel, kernel, Linux, Network, Opinion, patches | Tagged ethernet, intel e1000e, kernel 5.4, problems, revert patch, some systems ok, workaround | Leave a reply

Fedora – Fix for Broken rpmbuild in Fedora 31.

Adventures With Linux ™ Posted on September 6, 2019 by RGSeptember 6, 2019

Testing Fedora 31 – which is still work-in-progress, of course.. Tried to use # rpmbuild –rebuild to create a missing RPM from a F30 source RPM, and found the following error: ………….. Illegal char ‘)’ (0x29) in: Obsoletes:………. I found a reference to this error in the buglist, but it had been flagged as ‘rawhide’, and closed, … Continue reading →

Posted in compilation, Crash and Burn.., Fedora, Hacks, Linux, Opinion, quirks | Tagged fedora 31, fix, illegal char, pre release, rpmbuild bug, workaround | Leave a reply

NVIDIA – 410.xx Runtime Segfault – Solved..

Adventures With Linux ™ Posted on November 3, 2018 by RGNovember 4, 2018

Solved:    After more investigation, reinstalling the Xorg driver fixed the problem..  # dnf reinstall xorg-x11-server-Xorg After successfully patching the NVIDIA 410.73 driver (see previous article), I encountered another problem at runtime, after # startx : ………………………………. [ 145.489] (II) Initializing extension GLX [ 145.489] (II) AIGLX: Screen 0 is not DRI2 capable [ 145.489] (EE) AIGLX: reverting … Continue reading →

Posted in kernel, Linux, NVIDIA, Opinion, patches | Tagged fedora 29, kernel 4.19, nvidia 410.xx, patched 396.54, runtime, segfault, workaround | 2 Replies

NVIDIA – 410.73 PM Gotcha, for Some..

Adventures With Linux ™ Posted on November 3, 2018 by RGNovember 3, 2018

I just encountered a problem installing the latest NVIDIA driver 410.73 on my ‘Main’ system, having successfully tested it on my ‘Test’ system: …………………… MODPOST 4 modules WARNING: “nv_pmops_suspend” [/home/rgadsdon/kernel/NVIDIA-Linux-x86_64-410.73/kernel/nvidia.ko] undefined! WARNING: “nv_pmops_resume” [/home/rgadsdon/kernel/NVIDIA-Linux-x86_64-410.73/kernel/nvidia.ko] undefined! WARNING: “nv_pmops_thaw” [/home/rgadsdon/kernel/NVIDIA-Linux-x86_64-410.73/kernel/nvidia.ko] undefined! WARNING: “nv_pmops_poweroff” [/home/rgadsdon/kernel/NVIDIA-Linux-x86_64-410.73/kernel/nvidia.ko] undefined! WARNING: “nv_pmops_restore” [/home/rgadsdon/kernel/NVIDIA-Linux-x86_64-410.73/kernel/nvidia.ko] undefined! WARNING: “nv_pmops_freeze” [/home/rgadsdon/kernel/NVIDIA-Linux-x86_64-410.73/kernel/nvidia.ko] undefined! ………………….. It appears that NVIDIA now … Continue reading →

Posted in kernel, Linux, NVIDIA | Tagged 410.73, linux, nvidia, nv_pmops, patch, reauires pm compiled in, workaround | Leave a reply

Fedora – F28 Upgrade on ARM64 – Fix for GPG Errors..

Adventures With Linux ™ Posted on July 6, 2018 by RGJuly 6, 2018

When doing a # dnf system-upgrade reboot on an ARM64 system you may encounter a stream of GPG errors, followed by reboot, without upgrade. To fix this, simply import the F28 GPG key in advance, as done for Rawhide: # rpm –import /etc/pki/rpm-gpg/RPM-GPG-KEY-fedora-28-primary After this, the system-upgrade should proceed correctly.. Robert Gadsdon.   July 6, 2018   … Continue reading →

Posted in aarch64, ARM64, Fedora, fix, Linux | Tagged aarch64, arm64, dnf system-upgrade, fedora, fix, gpg errors, workaround | 1 Reply

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