Oracle Linux: FATAL: Error inserting xfs (/lib/modules/$(uname -r)/kernel/fs/xfs/xfs.ko): Unknown symbol in module, or unknown parameter (see dmesg)
(Doc ID 2496209.1)
Last updated on MAY 24, 2020
Applies to:
Linux OS - Version Oracle Linux 6.0 and laterInformation in this document applies to any platform.
Symptoms
xfs filesystems can not be mounted after upgrading kernel.
# dmesg | grep -i xfs
[ 62.981691] xfs: Unknown symbol crc32c (err 0)
[ 63.087523] xfs: Unknown symbol crc32c (err 0)
[ 63.216388] xfs: Unknown symbol crc32c (err 0)
# modprobe xfs
FATAL: Error inserting xfs (/lib/modules/$(uname -r)/kernel/fs/xfs/xfs.ko): Unknown symbol in module, or unknown parameter (see dmesg)
The dependency module 'libcrc32c.ko' for xfs is not loaded properly during the boot process.
On the problematic server, crc32c_intel is loaded:
# /sbin/lsmod | grep crc
crc32c_intel 24576 0
On another working server, libcrc32c is loaded:
# /sbin/lsmod | grep crc
libcrc32c 16384 1 xfs
Changes
Cause
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In this Document
Symptoms |
Changes |
Cause |
Solution |