depmod: ERROR: zstd: Data corruption detected

Painless · 2026-10-11 19:46:16

Hi,

A recent update on one of my Arch instances generated the following message:

(15/20) Updating module dependencies...
depmod: ERROR: zstd: Data corruption detected
depmod: ERROR: failed to load symbols from /lib/modules/7.2.9-arch1-1/kernel/drivers/net/can/usb/etas_es58x/etas_es58x.ko.zst: Invalid argument
depmod: ERROR: zstd: Data corruption detected
depmod: ERROR: zstd: Data corruption detected

I can't imagine what could have caused it, I think the disk is okay, it's a Samsung SSD formatted with EXT4.

Manually decompression seems to work ok:

$ ls -l /lib/modules/7.2.9-arch1-1/kernel/drivers/net/can/usb/etas_es58x/
total 36
-rw-r--r-- 1 root root 35803 Oct  3 12:43 etas_es58x.ko.zst
$ zstd -d /lib/modules/7.2.9-arch1-1/kernel/drivers/net/can/usb/etas_es58x/etas_es58x.ko.zst -o etas_es58x.ko
/lib/modules/7.2.9-arch1-1/kernel/drivers/net/can/usb/etas_es58x/etas_es58x.ko.zst: 165336 bytes 
$ ls -l
total 164
-rw-r--r-- 1 rob  rob  165336 Oct  3 12:43 etas_es58x.ko

Is this likely to be just a one-off?

seth · 2026-10-11 19:49:53

Could be IO, memory or CPU - or a bug in depmod.
Are there any IO errors in your dmesg/system journal?

sudo depmod -a

Does the error remain?

Painless · 2026-10-11 21:20:15

Thanks for your reply -

No IO errors I could see in dmesg.

'sudo depmod -a' output is clean.

seth · 2026-10-11 21:45:50

this likely to be just a one-off

Possibly due to the IO load during the update and maybe https://wiki.archlinux.org/title/Solid_state_drive#TRIM ?
Or a problem w/ the filesystem.

Arch Linux

#1 2026-10-11 19:46:16

depmod: ERROR: zstd: Data corruption detected

#2 2026-10-11 19:49:53

Re: depmod: ERROR: zstd: Data corruption detected

#3 2026-10-11 21:20:15

Re: depmod: ERROR: zstd: Data corruption detected

#4 2026-10-11 21:45:50

Re: depmod: ERROR: zstd: Data corruption detected

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