** Tags added: kernel-daily-bug
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https://bugs.launchpad.net/bugs/2129705
Title:
Kernel 6.17.0-5-generic (Ubuntu 25.04 dev) lacks ashmem kernel
support, preventing Waydroid function
Status in linux package in Ubuntu:
New
Bug description:
Affected Package: linux-image-6.17.0-5-generic
The current development kernel for Ubuntu 25 is missing the complete
set of Android kernel modules (binder and ashmem) required for
Waydroid (and other containerized Android environments) to run.
The binder support is present and compiled as a module
(CONFIG_ANDROID_BINDER_IPC=m), identified as binder_linux.ko.zst.
However, the required ashmem module is missing, which prevents
Waydroid from setting up the networking environment and runtime.
Tests Performed:
Configuration check: grep -i "BINDER\|ASHMEM" /boot/config-$(uname
-r) confirms CONFIG_ANDROID_BINDER_IPC=m.
Module loading attempt fails: The command sudo modprobe
ashmem_linux returns the error: modprobe: FATAL: Module ashmem_linux
not found in directory /lib/modules/6.17.0-5-generic.
Final result: The necessary devices (/dev/binder and /dev/ashmem)
are not created, leading to the Waydroid error: RuntimeError: Command
failed: % /usr/lib/waydroid/data/scripts/waydroid-net.sh start.
Request: Please ensure that full ashmem support is included in future
Ubuntu 25 kernel builds to restore Waydroid functionality.
ProblemType: Bug
DistroRelease: Ubuntu 25.10
Package: linux-image-6.17.0-5-generic 6.17.0-5.5
ProcVersionSignature: Ubuntu 6.17.0-5.5-generic 6.17.0-rc7
Uname: Linux 6.17.0-5-generic x86_64
ApportVersion: 2.33.1-0ubuntu3
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: hbastidas 5169 F.... wireplumber
/dev/snd/controlC1: hbastidas 5169 F.... wireplumber
/dev/snd/seq: hbastidas 5153 F.... pipewire
CasperMD5CheckResult: unknown
CurrentDesktop: ubuntu:GNOME
Date: Thu Oct 23 19:17:09 2025
MachineType: ASUS System Product Name
ProcFB: 0 nvidia-drmdrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-6.17.0-5-generic
root=UUID=a28d8839-afbc-48f8-9d78-5bde882a88f8 ro rhqb quiet
rd.driver.backlist=nouveau nvidia-drm.modeset=1
crashkernel=2G-4G:320M,4G-32G:512M,32G-64G:1024M,64G-128G:2048M,128G-:4096M
PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No
PulseAudio daemon running, or not running as session daemon.
RelatedPackageVersions:
firmware-sof N/A
linux-firmware 20250901.git993ff19b-0ubuntu1.2
RfKill:
0: hci0: Bluetooth
Soft blocked: no
Hard blocked: no
SourcePackage: linux
UpgradeStatus: Upgraded to questing on 2025-10-19 (4 days ago)
dmi.bios.date: 05/15/2025
dmi.bios.release: 18.20
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 1820
dmi.board.asset.tag: Default string
dmi.board.name: PRIME B760-PLUS
dmi.board.vendor: ASUSTeK COMPUTER INC.
dmi.board.version: Rev 1.xx
dmi.chassis.asset.tag: Default string
dmi.chassis.type: 3
dmi.chassis.vendor: Default string
dmi.chassis.version: Default string
dmi.modalias:
dmi:bvnAmericanMegatrendsInc.:bvr1820:bd05/15/2025:br18.20:svnASUS:pnSystemProductName:pvrSystemVersion:rvnASUSTeKCOMPUTERINC.:rnPRIMEB760-PLUS:rvrRev1.xx:cvnDefaultstring:ct3:cvrDefaultstring:skuSKU:
dmi.product.family: To be filled by O.E.M.
dmi.product.name: System Product Name
dmi.product.sku: SKU
dmi.product.version: System Version
dmi.sys.vendor: ASUS
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