https://bugzilla.kernel.org/show_bug.cgi?id=215879
Bug ID: 215879
Summary: EXT4-fs error - __ext4_find_entry:1612: inode #2: comm
systemd: reading directory lblock 0
Product: File System
Version: 2.5
Kernel Version: 5.18.0-rc3
Hardware: x86-64
OS: Linux
Tree: Mainline
Status: NEW
Severity: high
Priority: P1
Component: ext4
Assignee: [email protected]
Reporter: [email protected]
Regression: No
Hi Kernel Team,
I notice this issue:
EXT4-fs error - __ext4_find_entry:1612: inode #2: comm systemd: reading
directory lblock 0
I think this error is sporadic.
Drives: Local Storage: total: 953.87 GiB used: 45.04 GiB (4.7%)
ID-1: /dev/nvme0n1 vendor: Intel model: SSDPEKNU010TZ size: 953.87
GiB temp: 52.9 C
Partition: ID-1: / size: 250.25 GiB used: 40.4 GiB (16.1%) fs: ext4 dev:
/dev/nvme0n1p2
ID-2: /boot/efi size: 252 MiB used: 274 KiB (0.1%) fs: vfat dev:
/dev/nvme0n1p1
ID-3: /home size: 678.39 GiB used: 4.65 GiB (0.7%) fs: ext4 dev:
/dev/nvme0n1p4
Swap: ID-1: swap-1 type: partition size: 8 GiB used: 0 KiB (0.0%) dev:
/dev/nvme0n1p3
OS: Debian 11/MXLinux KDE
Kernel: 5.18.0-rc3 vanilla
cat /proc/cmdline
BOOT_IMAGE=/boot/vmlinuz-5.18.0-1-generic
root=UUID=166304ea-bc80-458b-99a1-8a39a4e71a09 ro quiet splash clocksource=hpet
init=/lib/systemd/systemd
dpkg -l | grep -E "systemd|preload"
ii libpam-systemd:amd64 1:247.3-6mx21
amd64 system and service manager - PAM module
ii libsystemd0:amd64 1:247.3-6mx21
amd64 systemd utility library
ii preload 0.6.4-5+b1
amd64 adaptive readahead daemon
ii systemd 1:247.3-6mx21
amd64 system and service manager
ii systemd-shim 10-5
amd64 shim for systemd
lspci
00:00.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Renoir/Cezanne Root
Complex
00:00.2 IOMMU: Advanced Micro Devices, Inc. [AMD] Renoir/Cezanne IOMMU
00:01.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Renoir PCIe Dummy Host
Bridge
00:01.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Renoir PCIe GPP Bridge
00:02.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Renoir PCIe Dummy Host
Bridge
00:02.2 PCI bridge: Advanced Micro Devices, Inc. [AMD] Renoir/Cezanne PCIe GPP
Bridge
00:02.4 PCI bridge: Advanced Micro Devices, Inc. [AMD] Renoir/Cezanne PCIe GPP
Bridge
00:08.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Renoir PCIe Dummy Host
Bridge
00:08.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Renoir Internal PCIe GPP
Bridge to Bus
00:14.0 SMBus: Advanced Micro Devices, Inc. [AMD] FCH SMBus Controller (rev 51)
00:14.3 ISA bridge: Advanced Micro Devices, Inc. [AMD] FCH LPC Bridge (rev 51)
00:18.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 166a
00:18.1 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 166b
00:18.2 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 166c
00:18.3 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 166d
00:18.4 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 166e
00:18.5 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 166f
00:18.6 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 1670
00:18.7 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 1671
01:00.0 VGA compatible controller: NVIDIA Corporation GA106M [GeForce RTX 3060
Mobile / Max-Q] (rev a1)
01:00.1 Audio device: NVIDIA Corporation Device 228e (rev a1)
02:00.0 Network controller: MEDIATEK Corp. Device 7961
03:00.0 Non-Volatile memory controller: Intel Corporation Device f1aa (rev 03)
04:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI]
Cezanne (rev c4)
04:00.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] Renoir Radeon High
Definition Audio Controller
04:00.2 Encryption controller: Advanced Micro Devices, Inc. [AMD] Family 17h
(Models 10h-1fh) Platform Security Processor
04:00.3 USB controller: Advanced Micro Devices, Inc. [AMD] Renoir/Cezanne USB
3.1
04:00.4 USB controller: Advanced Micro Devices, Inc. [AMD] Renoir/Cezanne USB
3.1
04:00.5 Multimedia controller: Advanced Micro Devices, Inc. [AMD]
Raven/Raven2/FireFlight/Renoir Audio Processor (rev 01)
04:00.6 Audio device: Advanced Micro Devices, Inc. [AMD] Family 17h (Models
10h-1fh) HD Audio Controller
CPU Model name: AMD Ryzen 9 5900HS with Radeon Graphics
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--- Comment #2 from sander44 ([email protected]) ---
Created attachment 300796
--> https://bugzilla.kernel.org/attachment.cgi?id=300796&action=edit
photo bug
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--- Comment #1 from sander44 ([email protected]) ---
Created attachment 300795
--> https://bugzilla.kernel.org/attachment.cgi?id=300795&action=edit
config kernel
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Theodore Tso ([email protected]) changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |[email protected]
--- Comment #3 from Theodore Tso ([email protected]) ---
We should really improve the error message; what this indicates is that while
trying to read from a directory, ext4 received an I/O error from the storage
device:
wait_on_buffer(bh);
if (!buffer_uptodate(bh)) {
EXT4_ERROR_INODE_ERR(dir, EIO,
"reading directory lblock %lu",
(unsigned long) block);
brelse(bh);
ret = ERR_PTR(-EIO);
goto cleanup_and_exit;
}
I'm not sure why systemd is trying to read so many directories, and why you
aren't seeing any I/O error messages logged on the console. At a guess, the
block device has completely failed, and there were messages about the unfolding
disaster that has since scrolled off your screen.
Bottom line, this is very likely an hardware problem of some sort.
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Vladimir G. Ivanovic ([email protected]) changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |[email protected]
--- Comment #4 from Vladimir G. Ivanovic ([email protected]) ---
I am getting the same error as sander44 (the OP) reported except the name of
the program generating the error is different.
EXT4-fs error (device sdb1): __ext4_find_entry:1612: inode #2: comm vorta:
reading directory lblock 0
The behavior of the Samsung 1TB SDXC card is predictable. It works for
minutes/hour, then throws the above error. This particular SD card is used for
borg backup which occur every 15 minutes (and also every 3 hours).
My (temporary) workaround is to unmount the SD card, run e2fsck, then re-mount
the card.
I'm suspicious of this being exclusively a hardware error because it is always
the same error at the same spot. Might it be an unexpected call or unexpected
function arguments? (I have no knowledge of ext4 internals, so it's likely I'm
talking nonsense.)
I'm happy to provide more detail or even roll my own kernel to provide
debugging symbols. (I'm using Arch 5.15.43-1-lts, but the error is independent
of what kernel I'm using.)
— Vladimir
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--- Comment #5 from sander44 ([email protected]) ---
Hi,
I notice today this issue with 6.1.12 kernel version.
On Ubuntu Team, i view this:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1993205
But with my search i view workaround:
https://unix.stackexchange.com/questions/375450/random-ssd-turn-off-ext4-find-entry-reading-directory-lblock0
https://askubuntu.com/questions/905710/ext4-fs-error-after-ubuntu-17-04-upgrade
Will try with this: nvme_core.default_ps_max_latency_us=200 for testing this
issue and to see if it reproduces.
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Theodore Tso ([email protected]) changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution|--- |INVALID
--- Comment #6 from Theodore Tso ([email protected]) ---
Note that what you found in your stack exchange search was from five years ago,
and described a workaround in a Linux kernel versiojn 4.10. In addition to
manually disabling APST (a quirk for a very specific Samsung SSD which has
since been added to newer kernels), other suggestions in the stack exchange or
linked web pages included " removing SDD, blowing air into M.2 connector and
reinserting it back" and "switching off the 'UEFI Secure Boot' setting in the
BIOS"
All of which is to say that the symptom is caused by an I/O error, and there
are many potential causes for an I/O error --- everything from missing quirks
(to work around broken firmware / hardware design) to bad connections to
misconfigured BIOS settings to just plain broken hardware.
This is why blindly web searching based on symptoms can often lead to
misleading results; an abdominal pain could mean anything from indigestion, to
a pulled muscle, to an infected appendix, to a heart attack. It's also why I
am not fond of people finding bug reports on the web and assuming that anything
that has the same symptom must have the same root cause.....
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