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Bug 195515 - sys-kernel/hardened-sources-2.6.22-r7 kernel loses clock - around 10 seconds per minute
Summary: sys-kernel/hardened-sources-2.6.22-r7 kernel loses clock - around 10 seconds...
Status: RESOLVED INVALID
Alias: None
Product: Gentoo Linux
Classification: Unclassified
Component: Hardened (show other bugs)
Hardware: All Linux
: High normal (vote)
Assignee: The Gentoo Linux Hardened Team
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2007-10-11 16:47 UTC by Roy Marples (RETIRED)
Modified: 2007-10-24 08:53 UTC (History)
2 users (show)

See Also:
Package list:
Runtime testing required: ---


Attachments
2.6.20-hardened-r10.config (clock works) (2.6.20-hardened-r10.config,40.28 KB, text/plain)
2007-10-11 16:47 UTC, Roy Marples (RETIRED)
Details
2.6.22-hardened-r7.config (clock fails) (2.6.22-hardened-r7.config,40.67 KB, text/plain)
2007-10-11 16:48 UTC, Roy Marples (RETIRED)
Details

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Description Roy Marples (RETIRED) gentoo-dev 2007-10-11 16:47:11 UTC
2.6.20-r10 does not.
ntpd runs on the machine, and cannot update the clock fast enough to keep sync. This is not an issue for 2.6.20-r10.

Configs to follow
Comment 1 Roy Marples (RETIRED) gentoo-dev 2007-10-11 16:47:38 UTC
Created attachment 133159 [details]
2.6.20-hardened-r10.config (clock works)
Comment 2 Roy Marples (RETIRED) gentoo-dev 2007-10-11 16:48:04 UTC
Created attachment 133161 [details]
2.6.22-hardened-r7.config (clock fails)
Comment 3 Christian Heim (RETIRED) gentoo-dev 2007-10-11 16:56:26 UTC
Any idea pipacs ?
Comment 4 PaX Team 2007-10-11 18:08:24 UTC
uhm, not a clue, i/we don't touch much code on amd64, i can't image what would cause such an effect... i take it that vanilla/non-hardened/grsec-off all work fine on the same box?
Comment 5 Roy Marples (RETIRED) gentoo-dev 2007-10-11 18:20:37 UTC
(In reply to comment #4)
> i take it that vanilla/non-hardened/grsec-off all work fine on the same box?

No idea. It would take time to test as I can't reboot into new kernels too often.

Comment 6 Kevin F. Quinn (RETIRED) gentoo-dev 2007-10-17 06:39:30 UTC
kernel: could someone on amd64 check vanilla- or gentoo-sources-2.6.20-r10 against 2.6.22-r7 with Uberlord's configs, please?  The configs should work, just the CONFIG_PAX* and CONFIG_GRKERNSEC* settings are irrelevant on vanilla/gentoo-sources.

uberlord: presumably simply typing "date" a minute apart will shows problem?  10 seconds a minute should be easily noticeable!
Comment 7 Daniel Drake (RETIRED) gentoo-dev 2007-10-17 07:56:33 UTC
that wouldn't be a meaningful test -- this stuff is bound to be heavily hardware related, not config based.
Comment 8 Roy Marples (RETIRED) gentoo-dev 2007-10-17 08:50:43 UTC
Well, my test was that every few minutes, `ntpq -p` would show offsets increasing at a rate of knots, too much for it to sync to.
Comment 9 Roy Marples (RETIRED) gentoo-dev 2007-10-24 08:53:47 UTC
This appears to have been a configuration issue at my end - sorry.