Public bug reported:
system: ubuntu 22.04.05 LTS.
hardware: raspberry pi 4 model B+, kernel 5.15.0-1085-raspi
problem:
i have a (almost*)fixed setup, all kernels upto but not-including the
'5.15.0-1085-raspi' (and all of it's associated packages) would tolerate abrupt
power-outage. starting with the version mentioned (introduces around
2025-08-30) abrupt power-outages are causing file-system corruption, such that
a abrupt power-out will cause file-system corruption, large number of corrupted
inodes, 'lost+found' full of small files, boot failure (requires manual fsck to
get it working again, and even corrupted files in /var/lib/dpkg/info/*). this
system is mostly idling, i can verify until now i have got two fs corruptions
on idle system.
some support info:
current system on past kernels tolerated nearly a hundered power outages
without file system corruption (orphaned safe-to-remove inodes was the worst i
would get, no boot failure, and no files in 'lost+found') . until now two
instances of power outages on the newer kernels caused fs corruption.
ProblemType: Bug
DistroRelease: Ubuntu 22.04
Package: linux-image-5.15.0-1084-raspi 5.15.0-1084.87
ProcVersionSignature: Ubuntu 5.15.0-1084.87-raspi 5.15.185
Uname: Linux 5.15.0-1084-raspi aarch64
ApportVersion: 2.20.11-0ubuntu82.10
Architecture: arm64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC1: aqoa 884 F.... pulseaudio
/dev/snd/controlC0: aqoa 884 F.... pulseaudio
CasperMD5CheckResult: unknown
CurrentDesktop: MATE
Date: Tue Sep 2 22:46:10 2025
ImageMediaBuild: 20200712
Lspci-vt: -[0000:00]---00.0-[01]----00.0 VIA Technologies, Inc. VL805/806 xHCI
USB 3.0 Controller
Lsusb:
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 004: ID 13ba:0017 PCPlay PS/2 Keyboard+Mouse Adapter
Bus 001 Device 003: ID c0f4:01b0 USB usb keyboard
Bus 001 Device 002: ID 2109:3431 VIA Labs, Inc. Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
ProcFB: 0 vc4drmfb
ProcKernelCmdLine: coherent_pool=1M 8250.nr_uarts=1
snd_bcm2835.enable_compat_alsa=0 snd_bcm2835.enable_hdmi=1
video=HDMI-A-1:1280x720M@60 smsc95xx.macaddr=DC:A6:32:62:F7:DB
vc_mem.mem_base=0x3ec00000 vc_mem.mem_size=0x40000000 net.ifnames=0
dwc_otg.lpm_enable=0 console=ttyS0,115200 console=tty1 root=LABEL=writable
rootfstype=ext4 elevator=deadline rootwait fixrtc quiet splash
plymouth.ignore-serial-consoles quiet splash
RelatedPackageVersions:
linux-restricted-modules-5.15.0-1084-raspi N/A
linux-backports-modules-5.15.0-1084-raspi N/A
linux-firmware N/A
RfKill:
0: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
SourcePackage: linux-raspi
StagingDrivers: vc_sm_cma bcm2835_mmal_vchiq snd_bcm2835 bcm2835_codec
bcm2835_isp bcm2835_v4l2
UpgradeStatus: No upgrade log present (probably fresh install)
acpidump:
** Affects: linux-raspi (Ubuntu)
Importance: Undecided
Status: New
** Tags: apport-bug arm64 arm64-image jammy raspi-image staging
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You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux-raspi in Ubuntu.
https://bugs.launchpad.net/bugs/2121890
Title:
latest lts kernel on aarch64 introduces filesystem corruption on
abrupt shutdowns
Status in linux-raspi package in Ubuntu:
New
Bug description:
system: ubuntu 22.04.05 LTS.
hardware: raspberry pi 4 model B+, kernel 5.15.0-1085-raspi
problem:
i have a (almost*)fixed setup, all kernels upto but not-including the
'5.15.0-1085-raspi' (and all of it's associated packages) would tolerate abrupt
power-outage. starting with the version mentioned (introduces around
2025-08-30) abrupt power-outages are causing file-system corruption, such that
a abrupt power-out will cause file-system corruption, large number of corrupted
inodes, 'lost+found' full of small files, boot failure (requires manual fsck to
get it working again, and even corrupted files in /var/lib/dpkg/info/*). this
system is mostly idling, i can verify until now i have got two fs corruptions
on idle system.
some support info:
current system on past kernels tolerated nearly a hundered power outages
without file system corruption (orphaned safe-to-remove inodes was the worst i
would get, no boot failure, and no files in 'lost+found') . until now two
instances of power outages on the newer kernels caused fs corruption.
ProblemType: Bug
DistroRelease: Ubuntu 22.04
Package: linux-image-5.15.0-1084-raspi 5.15.0-1084.87
ProcVersionSignature: Ubuntu 5.15.0-1084.87-raspi 5.15.185
Uname: Linux 5.15.0-1084-raspi aarch64
ApportVersion: 2.20.11-0ubuntu82.10
Architecture: arm64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC1: aqoa 884 F.... pulseaudio
/dev/snd/controlC0: aqoa 884 F.... pulseaudio
CasperMD5CheckResult: unknown
CurrentDesktop: MATE
Date: Tue Sep 2 22:46:10 2025
ImageMediaBuild: 20200712
Lspci-vt: -[0000:00]---00.0-[01]----00.0 VIA Technologies, Inc. VL805/806
xHCI USB 3.0 Controller
Lsusb:
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 004: ID 13ba:0017 PCPlay PS/2 Keyboard+Mouse Adapter
Bus 001 Device 003: ID c0f4:01b0 USB usb keyboard
Bus 001 Device 002: ID 2109:3431 VIA Labs, Inc. Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
ProcFB: 0 vc4drmfb
ProcKernelCmdLine: coherent_pool=1M 8250.nr_uarts=1
snd_bcm2835.enable_compat_alsa=0 snd_bcm2835.enable_hdmi=1
video=HDMI-A-1:1280x720M@60 smsc95xx.macaddr=DC:A6:32:62:F7:DB
vc_mem.mem_base=0x3ec00000 vc_mem.mem_size=0x40000000 net.ifnames=0
dwc_otg.lpm_enable=0 console=ttyS0,115200 console=tty1 root=LABEL=writable
rootfstype=ext4 elevator=deadline rootwait fixrtc quiet splash
plymouth.ignore-serial-consoles quiet splash
RelatedPackageVersions:
linux-restricted-modules-5.15.0-1084-raspi N/A
linux-backports-modules-5.15.0-1084-raspi N/A
linux-firmware N/A
RfKill:
0: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
SourcePackage: linux-raspi
StagingDrivers: vc_sm_cma bcm2835_mmal_vchiq snd_bcm2835 bcm2835_codec
bcm2835_isp bcm2835_v4l2
UpgradeStatus: No upgrade log present (probably fresh install)
acpidump:
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