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Bug 62225 - Device mapper - Multipath target patch
Summary: Device mapper - Multipath target patch
Status: RESOLVED LATER
Alias: None
Product: Gentoo Linux
Classification: Unclassified
Component: [OLD] Core system (show other bugs)
Hardware: x86 Linux
: High enhancement
Assignee: Daniel Drake (RETIRED)
URL:
Whiteboard: linux-2.6.12
Keywords: Inclusion
Depends on:
Blocks:
 
Reported: 2004-08-30 05:45 UTC by Lazar Obradovic
Modified: 2005-04-14 13:08 UTC (History)
1 user (show)

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


Attachments

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Description Lazar Obradovic 2004-08-30 05:45:58 UTC
Would it be possible to include this patch into gentoo-dev-sources? 

ftp://sources.redhat.com/pub/dm/patches/2.6-unstable/2.6.8.1/2.6.8.1-udm1.tar.bz2

We'd also need multipath tools, so I'll open another bugid with it's ebuild. 

Reproducible: Always
Steps to Reproduce:
1.
2.
3.
Comment 1 Daniel Drake (RETIRED) gentoo-dev 2004-09-29 02:23:20 UTC
Can you please explain more about what this does?

I'd rather not take a patch that isn't in the mainline kernel, it would be beneficial during installation from the LiveCDs?
Comment 2 Daniel Drake (RETIRED) gentoo-dev 2004-10-01 15:50:07 UTC
It's required for the dm-bbr features which were added into last release of gentoo-dev-sources. I'll be including these patches from now on. Expect new release soon.
Comment 3 Daniel Drake (RETIRED) gentoo-dev 2004-10-02 06:15:58 UTC
Included in gentoo-dev-sources-2.6.8-r6
Comment 4 Lazar Obradovic 2005-04-14 11:42:33 UTC
This patchset was once a part of gentoo-dev-sources, but I see it's been removed since we moved 2.6.x to gentoo-sources, so I reopened this bug. 

Could you please include it again?

Patchset is stable-but-not-yet-included-in-mainline-kernel version of kernel part of device-mapper, which, among other things, offers dm-multipath target support prefered by most SAN/NAS setups for loadbalancing / failover. 

Current version (for 2.6.11) is 2.6.11-rc3-udm2. Patching over gentoo-sources gives few rejected hungs, some cosmetic in nature, some seem to be just syntax repacking of the same code; but overall, it works like a charm (verified in production environment).
Comment 5 Daniel Drake (RETIRED) gentoo-dev 2005-04-14 11:59:33 UTC
Unfortunately we had to drop this from 2.6.11 releases. The udm patches are causing problems (hardlocks, compile errors, and other nasties).

Fortunately, dm-multipath has been merged into the 2.6.12 tree. So we'll be including dm-bbr again from that point. However it won't return for any more 2.6.11 releases. Sorry for any inconvenience.
Comment 6 Lazar Obradovic 2005-04-14 13:08:36 UTC
Good, I havent noticed that inclusion in main kernel... 

I'll switch back to 'resolved - later' status and wait for 2.6.12... 

thanks though :)