Bug 108151

Summary:	Cannot load crypto module ghash-clmulni-intel under kernel version 4.3
Product:	Other	Reporter:	da_audiophile
Component:	Modules	Assignee:	other_modules
Status:	NEW ---
Severity:	normal	CC:	da_audiophile, rui.y.wang, rusty, szg00000
Priority:	P1
Hardware:	All
OS:	Linux
Kernel Version:	4.3	Subsystem:
Regression:	No	Bisected commit-id:

Description da_audiophile 2015-11-18 18:05:05 UTC

Running 4.3 under Arch Linux x86_64 and attempting to load the ghash-clmulni-intel module results in an invalid argument and no module/functionality.  I see nothing accompanying it in dmesg or journalctl.

# modprobe -v ghash-clmulni-intel
insmod /lib/modules/4.3.0-1-ARCH/kernel/arch/x86/crypto/ghash-clmulni-intel.ko.gz 
modprobe: ERROR: could not insert 'ghash_clmulni_intel': Invalid argument

Comment 1 Rusty Russell 2015-11-19 00:24:34 UTC

Hmm, the crypto layer seems to return -EINVAL silently on all kinds of "malformed" issues.  But it's a crypto layer issue (I don't have the power to reassign it, it seems).

Comment 2 da_audiophile 2015-11-19 01:21:55 UTC

Perhaps I can?  I couldn't find a discrete crypto product or component.

Comment 3 Rui Wang 2015-12-01 04:57:08 UTC

The fix is at https://lkml.org/lkml/2015/11/29/85
Please help test it if you could.

Thanks

Comment 4 da_audiophile 2015-12-18 12:19:52 UTC

Same Invalid argument under 4.3.3.  I will try your patches and report back.

Comment 5 da_audiophile 2015-12-18 16:17:30 UTC

I can confirm that applying your patches to 4.3.3 allows the module to load correctly.  I didn't see any traffic on LKML about them nor do I see them in the stable-queue.  Any ideas if they will be incorporated to fix this?

Comment 6 Rui Wang 2015-12-19 10:47:47 UTC

Here:
https://lkml.org/lkml/2015/12/4/313