April 2024 - Arch-general - lists.archlinux.org

JDK/JRE and older Java versions
by Peter Nabbefeld 28 Apr '24

28 Apr '24

Hello, as a Java developer, I sometimes need to do compatibility checking using older versions, often using JRE, while I need a JDK for development. When I tried to update arch linux now, I found I cannot start any update because the update is blocked by setting JRE and JDK as conflicting packages. I tried to only install JDK 21, but the update is still being blocked because of my older versions of the JRE. Why do You block any software installation? I don't like the idea to enforce me to use any specific software, or to remove any specific one. Is there any possibility to remove the lock-in? Kind regards, Peter

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What's with the kernels that seem to stay stuck in core-testing longer than they used to?
by David C. Rankin 27 Apr '24

27 Apr '24

Devs, I've noticed kernels stay stuck in core-testing longer than they used to. In the past (unless there was some minor version change), they usually stayed in testing a day or less. The past couple have lingered nearly a week and linux 6.8.7.arch1-2 x86_64 has been there a few days? That's great to ensure there are no issue with other packages that depend on building drivers from the kernel, but does raise the question for the curios -- "What's up?" I ask for scheduling purposes. I monitor the newsfeeds from the package repos and when I see a new kernel coming, I try and set aside a convenient time for the update/reboot. Past few kernels, I've done that only to find - they are still in testing. Not a complaint, just a curiosity. -- David C. Rankin, J.D.,P.E.

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Building Rust kernel modules - target.json missing
by L. Rose 23 Apr '24

23 Apr '24

Hello everyone, I'm trying to build the example Rust kernel modules from kernel source [1] on Arch Linux. I use a simple Makefile to build them out of tree: obj-m += rust_minimal.o all: make -C /lib/modules/$(shell uname -r)/build M=$(PWD) modules However, the build can't find some Rust metadata: make -C /lib/modules/6.8.7-arch1-1/build M=/home/lukas/Downloads/linux-6.8.7-arch1/samples/rust modules make[1]: Entering directory '/usr/lib/modules/6.8.7-arch1-1/build' RUSTC [M] /home/lukas/Downloads/linux-6.8.7-arch1/samples/rust/rust_minimal.o error: target file "./scripts/target.json" does not exist Indeed, there is no target.json in /lib/modules/$(uname -r)/build/scripts/, so I thought, maybe I need to use a special kernel with Rust support. But building linux-rust from the AUR fails with the same error message: Installing Rust files... install: cannot stat 'scripts/target.json': No such file or directory ==> ERROR: A failure occurred in package_linux-rust-headers(). Aborting... And even the default kernel is passing the Linux kernel Rust support check script as suggested in the kernel docs [2]: lukas@Lukas-AMD:rust$ make -C /lib/modules/$(uname -r)/build rustavailable make: Entering directory '/usr/lib/modules/6.8.7-arch1-1/build' Rust is available! make: Leaving directory '/usr/lib/modules/6.8.7-arch1-1/build' So what am I doing wrong? Is the Arch Linux kernel currently missing Rust metadata required for Rust support, like target.json? Or am I missing some important prerequisites here? Any suggestions welcome! Thanks, lukaro [1] https://github.com/Rust-for-Linux/linux/tree/rust-next/samples/rust [2] https://docs.kernel.org/6.8/rust/quick-start.html

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virtualbox 7.0.16 and Windows 11 guest
by Ralf Mardorf 19 Apr '24

19 Apr '24

Hi, today I removed virtualbox6.1-bin 6.1.50 and installed virtualbox 7.0.16, because 6.1.50 doesn't work anymore [1] and I got rid of fixing virtualbox 6+ again and again. Doing a first short test a Windows 10 guest seems to run, but a Windows 11 guest seems to cause issues, at least a shutdown of the Windows 11 guest with _not_ updated guest additions didn't finish and locked the host or rather it was possible to push Ctrl+Alt+F2 and to run pkill VirtualBoxVM to get back a responding Arch Linux host. For other reasons I'm restoring another backup of Windows 11, which will take more than an hour, since the the vdi's size is > 700 GiB, so in the meantime I want to gather information. I will take a look at the settings mentioned by the Arch Wiki [2], [3]. Are there more settings I can check? It's an Intel CPU wit integrated GPU. • rocketmouse@archlinux ~ $ hwinfo --cpu | sort -u | grep Model Model: 6.191.5 "13th Gen Intel(R) Core(TM) i3-13100" • rocketmouse@archlinux ~ $ hwinfo --memory | grep Size Memory Size: 32 GB Regards, Ralf [1] "Could you still start Windows guests with virtualbox6.1-bin 6.1.50-1 or do you also experience guru meditations? I'm currently trying extra/virtualbox 7.0.16-1, which gets rid of the gurus, but so far a Windows 11 guest is not doing well." - https://aur.archlinux.org/pkgbase/virtualbox6.1-bin#comment-968033 [2] "4.11.1 Creating the virtual machine A VirtualBox virtual machine must be manually created. As of now do not add any storage device any disk to the virtual machine, it will be done manually later. Configure the virtual machine with the following settings (settings panel can be opened by clicking the "Settings" button in the main toolbar): View: System: Tab: Motherboard: mark Enable I/O APIC; mark Enable EFI; mark Hardware Clock in UTC Time if is your case. Tab: Processor: mark Enable PAE/NX; mark Enable Nested VT-x/AMD-V; Tab: Acceleration: Choose the paravirtualization interface Hyper-V from the drop down menu; mark Enable Nested Paging. Optionally you can enable also the following settings: View: Display Tab: Screen mark Enable 3D Acceleration. Note that it could cause glitches. Note: The Hyper-V setting is not required in order for the system to operate correctly, but it may help avoid licensing issues." - https://wiki.archlinux.org/title/VirtualBox#Creating_the_virtual_machine [3] "5.22 Random freezing in guests with Intel GPU With Intel CPU and graphics, allocating more processors for the guest can lower render performance, thus cause random freezing. Allocating less processors can help." - https://wiki.archlinux.org/title/VirtualBox#Random_freezing_in_guests_with_…

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PKGBUILD: nodejs
by Pocket 18 Apr '24

18 Apr '24

I am trying to build nodejs in a chroot using pkgctl repo clone --protocol=https nodejs pushd nodejs makechrootpkg -c -u -r "$CHROOT" -- --skippgpcheck popd It fails at this point ==> Entering fakeroot environment... chmod: cannot access '/startdir/pkg': No such file or directory I don't have startdir defined in the makepkg.conf file nor have I defined it anywhere Why is this failing? -- Hindi madali ang maging ako

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building plasma-wayland-protocols
by Pocket 13 Apr '24

13 Apr '24

Trying to build plasma-wayland-protocols This is the error I am getting What executable is it looking for? I have built the entire qt5/qt6 stack except for qt5-ukui-platformtheme plasma-wayland-protocols is a dependency of qt5-ukui-platformtheme So I am stuck here Can anyone shed light on this issue? ==> Starting build()... -- The C compiler identification is GNU 12.1.0 -- The CXX compiler identification is GNU 12.1.0 -- Detecting C compiler ABI info -- Detecting C compiler ABI info - done -- Check for working C compiler: /usr/bin/cc - skipped -- Detecting C compile features -- Detecting C compile features - done -- Detecting CXX compiler ABI info -- Detecting CXX compiler ABI info - done -- Check for working CXX compiler: /usr/bin/c++ - skipped -- Detecting CXX compile features -- Detecting CXX compile features - done -- -- No executable found. Can't check QT_INSTALL_PREFIX -- Installing in the same prefix as Qt, adopting their path scheme. -- No executable found. Can't check QT_INSTALL_PREFIX CMake Error at /usr/share/ECM/modules/ECMQueryQt.cmake:84 (message): No executable found. Can't check QT_INSTALL_PLUGINS as required Call Stack (most recent call first): /usr/share/ECM/kde-modules/KDEInstallDirs5.cmake:255 (ecm_query_qt) /usr/share/ECM/kde-modules/KDEInstallDirs.cmake:15 (include) CMakeLists.txt:17 (include) -- Configuring incomplete, errors occurred! ==> ERROR: A failure occurred in build(). -- Hindi madali ang maging ako

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pam 1.6.1-2 breaks sudo password
by Frederic Bezies 13 Apr '24

13 Apr '24

Hello. I noticed that pam 1.6.1-2 breaks sudo. Every time I tried to enter my password with a sudo command, it tells me my password is incorrect. Of course, it is not. The "fix" was to downgrade to pam 1.6.1-1. Hope it helps! -- Frederic Bezies fredbezies(a)gmail.com Blog: https://fredericbezies-ep.fr/blog/

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Re: [arch-announce] Increasing the default vm.max_map_count value
by Genes Lists 12 Apr '24

12 Apr '24

On Sun, 2024-04-07 at 18:12 +0000, Arch Linux: Recent news updates: Robin Candau wrote: > The [vm.max_map_count][1] paramater will be increased from the > default `65530` value to `1048576`. > > This change should help address performance, crash or start-up issues > for a number of memory intensive applications, Performance improvement is unlikely but could allow something to run that otherwise would not. The lkml comment [1] is worth a read and includes : "To be clear, what you are doing here is akin to adding more memory to your system when there is a memory leak. This is not the solution you should be pushing. Ironically, this is using more memory and performing worse than it should. At best, the limit increase is a workaround for buggy programs." As Robin said, setting the max higher is probably benign - and only impacts a system running the problematic software (games). Nonetheless, it is very simple to change it to whatever value you want with your own prefs dropped into /etc/sysctl.d/xxx.conf gene [1] https://lore.kernel.org/lkml/566168554.272637693.1710968734203.Jav aMail.root@zimbra54- e10.priv.proxad.net/T/#m1905a48f415bc6e8069a8fe53dec44bc311571f2 -- Gene

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PAM 1.6 breaks limits.conf parsing
by Simone Baratta 12 Apr '24

12 Apr '24

Howdy, Arch community! Today Ardour warned me that I had a ulimit enforced for locked memory, and indeed I was surprised to find that `ulimit -l` reported 8192 for my user (which I configured to `unlimited` a long time ago). After a bit of investigation, it turned out that this is a bug introduced by PAM 1.6, which fails to read my limits.conf file due to the extra whitespace separating entries: ``` @audio - memlock unlimited ``` This makes pam_limits.so fail with the following: ``` pam_limits(login:session): wrong limit value ' unlimited' for limit type '-' ``` Looks like this issue was introduced with [1], and indeed I can confirm that it's fixed by [2] which references the first commit. Is there any chance we can get a 1.6.0-5 update with this patch in? This version is already in core, and it's a very subtle issue which is likely to be unnoticed by many but come with a lot of (possibly security-relevant) side effects. [1] https://github.com/linux-pam/linux-pam/commit/eec4358a49dc0d6d699532965f453… [2] https://github.com/linux-pam/linux-pam/commit/9228077d762fc94ebc8d9fb4edfe9… Thanks! -- Simone

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Building qt-5 packages from PKGBUILD
by Pocket 12 Apr '24

12 Apr '24

I have a project where I am building arch packages for raspberry pi's 4/5. Building the base and devtools with all there dependencies I have 2477 completed with some packages being complete failures. In the qt5-* PKGBUILD most fail due to the wrong directory For example in qt5-tools: Build function qmake ../${_pkgfqn} CONFIG+=fat-static-lto should be qmake ../kde-${_pkgfqn} CONFIG+=fat-static-lto ^^^^ and in the package function cd ../${_pkgfqn} should be cd ../kde-${_pkgfqn} ^^^^ It appears that many of these packages that have this issue and I have not found the all as I am just being to build these. -- Hindi madali ang maging ako

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