telegram-desktop: <jemalloc>: Unsupported system page size

[alllexx88]

While running on Raspberry Pi 5 with linux-rpi-16k, I get this error when trying to launch telegram-desktop:
[code]$ telegram-desktop
<jemalloc>: Unsupported system page size
<jemalloc>: Unsupported system page size
<jemalloc>: Unsupported system page size
<jemalloc>: Unsupported system page size
../glib/glib/gprintf.c:350: failed to allocate memory[/code]

When replacing linux-rpi-16k with linux-rpi, the error is gone.

[code]$ pacman -Q telegram-desktop
telegram-desktop 4.16.6-1
$ pacman -Q linux-rpi-16k
linux-rpi-16k 6.6.28-1
$ pacman -Q jemalloc
jemalloc 1:5.3.0-3[/code]

This link appears to be relevant: make_clickable_callback(MAGIC_URL_FULL, ' ', 'https://github.com/telegramdesktop/tdesktop/issues/26103', '', ' class="postlink"') Strangely, it says the issue is fixed on Arch Linux ARM, but I'm still seeing this error with the latest versions of all of installed packages.

[alllexx88]

I built telegram-desktop 5.0.0-1 from Arch Linux sources, and it works perfectly fine, with the current jemalloc from Arch Linux ARM. Maybe, the telegram-desktop 4.16.6-1 from the repos was linked against a bad static version of jemalloc, since ldd doesn't list libjemalloc, unlike the 5.0.0-1 I built myself:

[code]$ ldd `which telegram-desktop`|grep jemalloc
libjemalloc.so.2 => /usr/lib/libjemalloc.so.2 (0x00007fff184b0000)[/code]

It took some time to compile, and also a big swap (I used 8.7G).

[alllexx88]

telegram-desktop was just upgraded to 5.0.1-1 on the extra repo. The jemalloc error is still there with the current version. I can't find the PKGBUILD used to build archlinuxarm telegram-desktop, but seeing that jemalloc isn't a dependency for telegram-desktop, cmake/external/jemalloc/CMakeLists.txt probably builds static jemalloc during telegram-desktop compilation, which doesn't support 16k page size. It helps to instead build with current shared extra/jemalloc, which is built with 16k page size support. Fixing this should be as simple as adding jemalloc dependency, I could create a PR, but I can't find the sources for this package: it's not on make_clickable_callback(MAGIC_URL_FULL, ' ', 'https://github.com/archlinuxarm/PKGBUILDs/tree/master/extra', '', ' class="postlink"')

[dpasini]

Has this issue been fixed? I am trying desperately to install Telegram on the Raspberry Pi 5 but to no success.. Please help!

[graysky]

Could be incompatible with 16k frames used by linux-rpi-16k. Try installing linux-rpi, reboot and try it again.

[alllexx88]

@graysky It's definitely has to do with 16k page size. And the solution is actually pretty simple: just add 'jemalloc' dependency to the PKGBUILD. Current telegram-desktop binary is built without external jemalloc, so the telegram-desktop cmake builds a static one for itself, without the support for 16k pages. While the extra/jemalloc package is built with 16k support, so all it takes is just linking against this jemalloc. I used Arch sources from make_clickable_callback(MAGIC_URL_FULL, ' ', 'https://gitlab.archlinux.org/archlinux/packaging/packages/telegram-desktop', '', ' class="postlink"') with these minor adjustments:

[code]diff --git a/PKGBUILD b/PKGBUILD
index bfed5d5..e5ddb5a 100644
--- a/PKGBUILD
+++ b/PKGBUILD
@@ -2,12 +2,12 @@
# Contributor: hexchain <i@hexchain.org>
pkgname=telegram-desktop
pkgver=5.0.1
-pkgrel=1
+pkgrel=2
pkgdesc='Official Telegram Desktop client'
-arch=('x86_64')
+arch=('aarch64' 'x86_64')
url="https://desktop.telegram.org/"
license=('GPL3')
-depends=('hunspell' 'ffmpeg' 'hicolor-icon-theme' 'lz4' 'minizip' 'openal'
+depends=('hunspell' 'ffmpeg' 'hicolor-icon-theme' 'jemalloc' 'lz4' 'minizip' 'openal'
'qt6-imageformats' 'qt6-svg' 'qt6-wayland' 'xxhash'
'rnnoise' 'pipewire' 'libxtst' 'libxrandr' 'libxcomposite' 'libxdamage' 'abseil-cpp' 'libdispatch'
'openssl' 'protobuf' 'glib2' 'libsigc++-3.0' 'kcoreaddons')[/code]

And the resulting binary indeed links against libjemalloc:

[code]$ ldd /usr/bin/telegram-desktop|grep jemalloc
libjemalloc.so.2 => /usr/lib/libjemalloc.so.2 (0x00007fff66200000)[/code]

And it works just fine with linux-rpi-16k.

@graysky do you happen to know how to suggest these changes to archlinuxarm codebase? Right now I don't see telegram-desktop on make_clickable_callback(MAGIC_URL_FULL, ' ', 'https://github.com/archlinuxarm/PKGBUILDs', '', ' class="postlink"')

Thanks!

[graysky]

I asked Kevin to do it, thanks for reporting back.

[alllexx88]

@graysky Great, thanks!