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Bug 267607

Summary: [2.6.28 regression] sys-kernel/gentoo-sources-2.6.28-r5 padlock_sha module hangs on load
Product: Gentoo Linux Reporter: Stuart Shelton <srcshelton>
Component: [OLD] Core systemAssignee: Gentoo Kernel Bug Wranglers and Kernel Maintainers <kernel>
Status: VERIFIED NEEDINFO    
Severity: normal CC: gengor
Priority: High    
Version: 2008.0   
Hardware: All   
OS: Linux   
Whiteboard: linux-2.6.28-regression linux-2.6.29
Package list:
Runtime testing required: ---

Description Stuart Shelton 2009-04-26 23:06:36 UTC
As documented here:

http://www.mail-archive.com/debian-kernel@lists.debian.org/msg43737.html
http://bugs.archlinux.org/task/12823

... the padlock_sha module which accelerates SHA operations on VIA processors hangs if loaded on VIA processors(!) - or, at least, the C7.

This is problematic for headless servers which have padlock_sha in /etc/modules.autoload.d/kernel-2.6.  This should probably be checked for and entries removed by the ebuild, or at least a message should be output.
Comment 1 Daniel Drake (RETIRED) gentoo-dev 2009-05-11 00:19:52 UTC
which is the last known working kernel?
Comment 2 Stuart Shelton 2009-05-12 23:19:54 UTC
2.6.27-gentoo-r8 definitely worked: I believe that this is a regression in 2.6.28.
Comment 3 Markos Chandras (RETIRED) gentoo-dev 2009-05-12 23:39:18 UTC
According to this commit

http://git.kernel.org/?p=linux/kernel/git/stable/linux-2.6.29.y.git;a=commit;h=a760a6656e6f00bb0144a42a048cf0266646e22c

this should be fixed on 2.6.29 branch.

Could you please try the latest 2.6.29 sources ? That is 2.6.29-r3

Thanks
Comment 4 Mike Pagano gentoo-dev 2009-05-29 12:56:38 UTC
Please feel free to reopen after testings as described in comment #3
Comment 5 Stuart Shelton 2009-05-29 17:45:56 UTC
Apologies for the delay - I've today upgraded to 2.6.29-gentoo-r4, and that works perfectly.