archive mirror
 help / color / mirror / Atom feed
* [lustre-devel] zfs module taints osd_zfs and causes modprobe to fail
@ 2021-07-29 23:31 Christian Kuntz
  0 siblings, 0 replies; only message in thread
From: Christian Kuntz @ 2021-07-29 23:31 UTC (permalink / raw)
  To: Lustre-devel

[-- Attachment #1.1: Type: text/plain, Size: 1354 bytes --]

Hi all,

Resident crazy guy Christian here, I'm compiling lustre 2.14 on kernel
4.19.194 with ZFS 2.0.3 and running into a bit of a challenge thanks to this
kernel commit

In short, `modprobe lustre` succeeds but `modprobe osd_zfs` fails and
generates this output in dmesg:

[82645.937126] osd_zfs: module_layout: kernel tainted.
[82645.937526] osd_zfs: module uses symbols from proprietary module zfs,
inheriting taint.
[82645.938356] osd_zfs: Unknown symbol ktime_get_real_seconds (err -2)
[82645.938568] osd_zfs: Unknown symbol ktime_get_seconds (err -2)

From what I can gather, the license taint from zfs floats up to osd_zfs,
and since osd_zfs becomes tainted as a non-GPL module it can no longer
utilize the GPL-only symbols from ktime, causing the module insertion to

As far as I can tell, my options are to either patch the taint inheritance
out of the kernel, add new functions to osd_zfs that replace the
functionality of ktim_get_real_seconds and ktime_get_seconds (honestly,
that feels a bit intimidating), or remove the gpl only requirement from
osd_zfs. Has anyone else run into this and found working solutions yet?



[-- Attachment #1.2: Type: text/html, Size: 1680 bytes --]

[-- Attachment #2: Type: text/plain, Size: 165 bytes --]

lustre-devel mailing list

^ permalink raw reply	[flat|nested] only message in thread

only message in thread, other threads:[~2021-07-29 23:31 UTC | newest]

Thread overview: (only message) (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-07-29 23:31 [lustre-devel] zfs module taints osd_zfs and causes modprobe to fail Christian Kuntz

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).