[Bug 690387] Re: udev block naming breaks failover and sd kref release cycle
This bug was fixed in the package multipath-tools - 0.4.8-14ubuntu4.10.10.2 --- multipath-tools (0.4.8-14ubuntu4.10.10.2) maverick-proposed; urgency=high * Add patch to fix the expected pathname from multipath uevents (LP: #690387) -- Serge HallynThu, 21 Jul 2011 11:26:02 -0500 ** Changed in: multipath-tools (Ubuntu Maverick) Status: Fix Committed => Fix Released ** Changed in: multipath-tools (Ubuntu Lucid) Status: Fix Committed => Fix Released -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to multipath-tools in Ubuntu. https://bugs.launchpad.net/bugs/690387 Title: udev block naming breaks failover and sd kref release cycle To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/multipath-tools/+bug/690387/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 690387] Re: udev block naming breaks failover and sd kref release cycle
This bug was fixed in the package multipath-tools - 0.4.8-14ubuntu4.10.04.2 --- multipath-tools (0.4.8-14ubuntu4.10.04.2) lucid-proposed; urgency=high * Add patch to fix the expected pathname from multipath uevents (LP: #690387) -- Serge HallynThu, 21 Jul 2011 11:37:32 -0500 -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to multipath-tools in Ubuntu. https://bugs.launchpad.net/bugs/690387 Title: udev block naming breaks failover and sd kref release cycle To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/multipath-tools/+bug/690387/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 690387] Re: udev block naming breaks failover and sd kref release cycle
** Tags removed: verification-needed ** Tags added: verification-done -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to multipath-tools in Ubuntu. https://bugs.launchpad.net/bugs/690387 Title: udev block naming breaks failover and sd kref release cycle To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/multipath-tools/+bug/690387/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 690387] Re: udev block naming breaks failover and sd kref release cycle
Just confirmed the same behavior with maverick. Devices disappeared and reappeared with the same name. -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to multipath-tools in Ubuntu. https://bugs.launchpad.net/bugs/690387 Title: udev block naming breaks failover and sd kref release cycle To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/multipath-tools/+bug/690387/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 690387] Re: udev block naming breaks failover and sd kref release cycle
I reproduced the bug and can confirm the fix for lucid. Doing the same on maverick now. Hardware for the test is: HBA: QLogic Corp. ISP2312-based 2Gb Fibre Channel to PCI-X HBA SAN: HP EVA3000 Connected with two different path directly between the QLogic and the SAN. -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to multipath-tools in Ubuntu. https://bugs.launchpad.net/bugs/690387 Title: udev block naming breaks failover and sd kref release cycle To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/multipath-tools/+bug/690387/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 690387] Re: udev block naming breaks failover and sd kref release cycle
Awesome, thanks Peter. Now, we need somebody who wasn't involved in creating the fix to verify the fix, or at least verify that the package itself works without regressions. -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to multipath-tools in Ubuntu. https://bugs.launchpad.net/bugs/690387 Title: udev block naming breaks failover and sd kref release cycle To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/multipath-tools/+bug/690387/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 690387] Re: udev block naming breaks failover and sd kref release cycle
@Clint maverick-proposed looks good. # apt-cache showpkg multipath-tools Package: multipath-tools Versions: 0.4.8-14ubuntu4.10.10.2 (/var/lib/apt/lists/us.archive.ubuntu.com_ubuntu_dists_maverick-proposed_main_binary-amd64_Packages) (/var/lib/dpkg/status) # multipath -ll 222fb00015553d0d9dm-0 Intel ,Multi-Flex [size=10G][features=1 queue_if_no_path][hwhandler=1 alua] \_ round-robin 0 [prio=130][active] \_ 0:0:1:1 sdf 8:80 [active][ready] \_ round-robin 0 [prio=1][enabled] \_ 0:0:0:1 sdb 8:16 [active][ready] 2225f00015562a505dm-1 Intel ,Multi-Flex [size=10G][features=1 queue_if_no_path][hwhandler=1 alua] \_ round-robin 0 [prio=130][active] \_ 0:0:1:3 sdh 8:112 [active][ready] \_ round-robin 0 [prio=1][enabled] \_ 0:0:0:3 sdd 8:48 [active][ready] 222515568f586dm-3 Intel ,Multi-Flex [size=10G][features=1 queue_if_no_path][hwhandler=1 alua] \_ round-robin 0 [prio=130][active] \_ 0:0:0:0 sda 8:0 [active][ready] \_ round-robin 0 [prio=1][enabled] \_ 0:0:1:0 sde 8:64 [active][ready] 222d8000155636433dm-2 Intel ,Multi-Flex [size=10G][features=1 queue_if_no_path][hwhandler=1 alua] \_ round-robin 0 [prio=130][active] \_ 0:0:0:2 sdc 8:32 [active][ready] \_ round-robin 0 [prio=1][enabled] \_ 0:0:1:2 sdg 8:96 [active][ready] # Reset a controller # multipath -ll 222fb00015553d0d9dm-0 Intel ,Multi-Flex [size=10G][features=1 queue_if_no_path][hwhandler=1 alua] \_ round-robin 0 [prio=50][active] \_ 0:0:0:1 sdb 8:16 [active][ready] 2225f00015562a505dm-1 Intel ,Multi-Flex [size=10G][features=1 queue_if_no_path][hwhandler=1 alua] \_ round-robin 0 [prio=50][active] \_ 0:0:0:3 sdd 8:48 [active][ready] 222515568f586dm-3 Intel ,Multi-Flex [size=10G][features=1 queue_if_no_path][hwhandler=1 alua] \_ round-robin 0 [prio=130][enabled] \_ 0:0:0:0 sda 8:0 [active][ready] 222d8000155636433dm-2 Intel ,Multi-Flex [size=10G][features=1 queue_if_no_path][hwhandler=1 alua] \_ round-robin 0 [prio=130][active] \_ 0:0:0:2 sdc 8:32 [active][ready] # It's back # multipath -ll 222fb00015553d0d9dm-0 Intel ,Multi-Flex [size=10G][features=1 queue_if_no_path][hwhandler=1 alua] \_ round-robin 0 [prio=130][active] \_ 0:0:2:1 sdf 8:80 [active][ready] \_ round-robin 0 [prio=1][enabled] \_ 0:0:0:1 sdb 8:16 [active][ready] 2225f00015562a505dm-1 Intel ,Multi-Flex [size=10G][features=1 queue_if_no_path][hwhandler=1 alua] \_ round-robin 0 [prio=130][active] \_ 0:0:2:3 sdh 8:112 [active][ready] \_ round-robin 0 [prio=1][enabled] \_ 0:0:0:3 sdd 8:48 [active][ready] 222515568f586dm-3 Intel ,Multi-Flex [size=10G][features=1 queue_if_no_path][hwhandler=1 alua] \_ round-robin 0 [prio=130][active] \_ 0:0:0:0 sda 8:0 [active][ready] \_ round-robin 0 [prio=1][enabled] \_ 0:0:2:0 sde 8:64 [active][ready] 222d8000155636433dm-2 Intel ,Multi-Flex [size=10G][features=1 queue_if_no_path][hwhandler=1 alua] \_ round-robin 0 [prio=130][active] \_ 0:0:0:2 sdc 8:32 [active][ready] \_ round-robin 0 [prio=1][enabled] \_ 0:0:2:2 sdg 8:96 [active][ready] # SD names were recycled correctly - FIXED -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to multipath-tools in Ubuntu. https://bugs.launchpad.net/bugs/690387 Title: udev block naming breaks failover and sd kref release cycle To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/multipath-tools/+bug/690387/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 690387] Re: udev block naming breaks failover and sd kref release cycle
@Clint lucid-proposed looks good. $ apt-cache showpkg multipath-tools Package: multipath-tools Versions: 0.4.8-14ubuntu4.10.04.2 (/var/lib/apt/lists/us.archive.ubuntu.com_ubuntu_dists_lucid-proposed_main_binary-amd64_Packages) (/var/lib/dpkg/status) # multipath -ll 222fb00015553d0d9dm-3 Intel ,Multi-Flex [size=10G][features=1 queue_if_no_path][hwhandler=1 alua] \_ round-robin 0 [prio=130][active] \_ 0:0:1:1 sdf 8:80 [active][ready] \_ round-robin 0 [prio=1][enabled] \_ 0:0:0:1 sdb 8:16 [active][ready] 2225f00015562a505dm-1 Intel ,Multi-Flex [size=10G][features=1 queue_if_no_path][hwhandler=1 alua] \_ round-robin 0 [prio=130][active] \_ 0:0:1:3 sdh 8:112 [active][ready] \_ round-robin 0 [prio=1][enabled] \_ 0:0:0:3 sdd 8:48 [active][ready] 222515568f586dm-2 Intel ,Multi-Flex [size=10G][features=1 queue_if_no_path][hwhandler=1 alua] \_ round-robin 0 [prio=130][active] \_ 0:0:0:0 sda 8:0 [active][ready] \_ round-robin 0 [prio=1][enabled] \_ 0:0:1:0 sde 8:64 [active][ready] 222d8000155636433dm-0 Intel ,Multi-Flex [size=10G][features=1 queue_if_no_path][hwhandler=1 alua] \_ round-robin 0 [prio=130][active] \_ 0:0:0:2 sdc 8:32 [active][ready] \_ round-robin 0 [prio=1][enabled] \_ 0:0:1:2 sdg 8:96 [active][ready] # Reset a controller # multipath -ll 222fb00015553d0d9dm-3 Intel ,Multi-Flex [size=10G][features=1 queue_if_no_path][hwhandler=1 alua] \_ round-robin 0 [prio=50][active] \_ 0:0:0:1 sdb 8:16 [active][ready] 2225f00015562a505dm-1 Intel ,Multi-Flex [size=10G][features=1 queue_if_no_path][hwhandler=1 alua] \_ round-robin 0 [prio=50][active] \_ 0:0:0:3 sdd 8:48 [active][ready] 222515568f586dm-2 Intel ,Multi-Flex [size=10G][features=1 queue_if_no_path][hwhandler=1 alua] \_ round-robin 0 [prio=130][active] \_ 0:0:0:0 sda 8:0 [active][ready] 222d8000155636433dm-0 Intel ,Multi-Flex [size=10G][features=1 queue_if_no_path][hwhandler=1 alua] \_ round-robin 0 [prio=130][active] \_ 0:0:0:2 sdc 8:32 [active][ready] # It's back # multipath -ll 222fb00015553d0d9dm-3 Intel ,Multi-Flex [size=10G][features=1 queue_if_no_path][hwhandler=1 alua] \_ round-robin 0 [prio=130][active] \_ 0:0:2:1 sdf 8:80 [active][ready] \_ round-robin 0 [prio=1][enabled] \_ 0:0:0:1 sdb 8:16 [active][ready] 2225f00015562a505dm-1 Intel ,Multi-Flex [size=10G][features=1 queue_if_no_path][hwhandler=1 alua] \_ round-robin 0 [prio=130][active] \_ 0:0:2:3 sdh 8:112 [active][ready] \_ round-robin 0 [prio=1][enabled] \_ 0:0:0:3 sdd 8:48 [active][ready] 222515568f586dm-2 Intel ,Multi-Flex [size=10G][features=1 queue_if_no_path][hwhandler=1 alua] \_ round-robin 0 [prio=130][active] \_ 0:0:0:0 sda 8:0 [active][ready] \_ round-robin 0 [prio=1][enabled] \_ 0:0:2:0 sde 8:64 [active][ready] 222d8000155636433dm-0 Intel ,Multi-Flex [size=10G][features=1 queue_if_no_path][hwhandler=1 alua] \_ round-robin 0 [prio=130][active] \_ 0:0:0:2 sdc 8:32 [active][ready] \_ round-robin 0 [prio=1][enabled] \_ 0:0:2:2 sdg 8:96 [active][ready] # SD names were recycled correctly - FIXED -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to multipath-tools in Ubuntu. https://bugs.launchpad.net/bugs/690387 Title: udev block naming breaks failover and sd kref release cycle To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/multipath-tools/+bug/690387/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 690387] Re: udev block naming breaks failover and sd kref release cycle
** Branch linked: lp:ubuntu/maverick-proposed/multipath-tools -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to multipath-tools in Ubuntu. https://bugs.launchpad.net/bugs/690387 Title: udev block naming breaks failover and sd kref release cycle To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/multipath-tools/+bug/690387/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 690387] Re: udev block naming breaks failover and sd kref release cycle
Hello Peter, or anyone else affected, Accepted multipath-tools into maverick-proposed, the package will build now and be available in a few hours. Please test and give feedback here. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you in advance! ** Tags added: verification-needed -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to multipath-tools in Ubuntu. https://bugs.launchpad.net/bugs/690387 Title: udev block naming breaks failover and sd kref release cycle To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/multipath-tools/+bug/690387/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 690387] Re: udev block naming breaks failover and sd kref release cycle
** Changed in: multipath-tools (Ubuntu Maverick) Status: In Progress => Fix Committed ** Changed in: multipath-tools (Ubuntu Lucid) Status: In Progress => Fix Committed -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to multipath-tools in Ubuntu. https://bugs.launchpad.net/bugs/690387 Title: udev block naming breaks failover and sd kref release cycle To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/multipath-tools/+bug/690387/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 690387] Re: udev block naming breaks failover and sd kref release cycle
** Description changed: Binary package hint: multipath-tools + + + SRU Justification: + 1. Impact: multipath fail-over events are not handled by multipathd. The system therefore does not cleanly survive FOFB. + 2. How addressed: a bug from upstream is cherry-picked which fixes multipathd to look for the correct device pathnames in uevents it sees. + 3. Patch: see debdiff attached + 4. To reproduce: Start multipathd with -v4 argument. Reset an SCM to initiate FOFB. Watch /var/log/daemon.log for uevents relating to drives. Without the patch they don't show up. Additionally, upon failback, new block device names will be used (i.e. /dev/sdo instead of /dev/sda). + 5. Regression potential: the patch is to multipathd, so non-multipath users will not be affected. Multipathd users with an older kernel which uses the old pathanames could get the same behavior which uptodate users now have without this patch. + + This was exposed on the Intel IMS SAN which is an ODM'd Promise Vtrak variant on 10.04 server. The SAN has Active/Standby capabilities and is configured for failover. It probably affects other SANs too. Setup: multipath'd SAN consisting of SD block devices. Symptoms: On failover, multipath isn't gettng the right signals to tear down the defunct path. This was traced down to the fact that the path UDEV was presenting to multipath was different from what it was expecting. It simply dropped the request to gracefully remove the device, and instead responded to the SCSI mid-layer SD IO state change, SDEV_CANCEL/DEL which puts the device offline. Problem is device mapper still has an handle on the SD device, as can be seen from /sys/block/dm-x/slaves, and as a result, scsi_target_destroy is never called. The outward symptom of this is the SD suffix is not recycled because of course the previous reference never dropped. Solution: A fix was developed independently of upstream by Serge Hallyn, later it was found that it was fixed upstream, in 2008. The patch is: commit 7fa7affc3d23dd9dc906804d22a61144bca9f9b9 Author: Benjamin Marzinski Date: Thu Dec 11 16:03:28 2008 -0600 Fix for uevent devpath handling This is necessary to make uevents work on fedora, since devpath appears as something like: '/devices/pci:00/:00:0a.0/:06:00.0/host11/rport-11:0-1/target11:0:1/11:0:1:0/block/s It simply strips off the everything up to the /block. Signed-off-by: Benjamin Marzinski It integrates simply and can be found in PPAs here: ppa:peter-petrakis/storage -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to multipath-tools in Ubuntu. https://bugs.launchpad.net/bugs/690387 Title: udev block naming breaks failover and sd kref release cycle To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/multipath-tools/+bug/690387/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 690387] Re: udev block naming breaks failover and sd kref release cycle
** Also affects: multipath-tools (Ubuntu Lucid) Importance: Undecided Status: New ** Also affects: multipath-tools (Ubuntu Maverick) Importance: Undecided Status: New ** Also affects: multipath-tools (Ubuntu Natty) Importance: Undecided Status: New ** Changed in: multipath-tools (Ubuntu Lucid) Importance: Undecided => High ** Changed in: multipath-tools (Ubuntu Maverick) Importance: Undecided => High ** Changed in: multipath-tools (Ubuntu Natty) Importance: Undecided => High ** Changed in: multipath-tools (Ubuntu Lucid) Status: New => In Progress ** Changed in: multipath-tools (Ubuntu Maverick) Status: New => In Progress ** Changed in: multipath-tools (Ubuntu Natty) Status: New => In Progress ** Changed in: multipath-tools (Ubuntu Natty) Status: In Progress => Fix Released -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to multipath-tools in Ubuntu. https://bugs.launchpad.net/bugs/690387 Title: udev block naming breaks failover and sd kref release cycle To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/multipath-tools/+bug/690387/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 690387] Re: udev block naming breaks failover and sd kref release cycle
Thanks, Peter. I'll follow up on this bug. The mass SRU failed. Any high priority bugs not yet SRUd should be separately handled. Several of the bugs which were part of the mass SRU were not listed as high priority. If anyone feels they *are* high priority, then pls comment in the bugs to that effect, and we can pursue a (separate) SRU. ** Changed in: multipath-tools (Ubuntu) Status: Incomplete => Fix Released -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to multipath-tools in Ubuntu. https://bugs.launchpad.net/bugs/690387 Title: udev block naming breaks failover and sd kref release cycle To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/multipath-tools/+bug/690387/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 690387] Re: udev block naming breaks failover and sd kref release cycle
@Serge Yes, fix-released for oneiric I believe natty is covered. The confusion I think is the changelog references this fix from a private bug: multipath-tools (0.4.8-14ubuntu7) natty; urgency=low * Add patch to fix the expected pathname from multipath uevents (LP: #660597) Where this bug, lp #690387 is the public instance of the fix. Though in lucid, I don't see either bug number mentioned in the changelog. multipath-tools (0.4.8-14ubuntu4.10.04.1) lucid-proposed; urgency=high * Eliminate UDEV CHANGE events generated by mpath priority checkers. Due to quirk in how SG IO is handled by SD devices (LP: #644489). -- Peter M. Petrakis Tue, 21 Jun 2011 14:13:12 -0400 multipath-tools (0.4.8-14ubuntu4) lucid; urgency=low * debian/control: Move libreadline5-dev build dependency to libreadline-dev. (Already done in Debian). -- Martin Pitt Mon, 08 Mar 2010 14:50:04 +0100 multipath-tools (0.4.8-14ubuntu3) lucid; urgency=low * Support failback for Intel Modular Server (LP: #520309). -- Colin Watson Fri, 12 Feb 2010 12:21:42 + root@kickseed:~# apt-cache policy multipath-tools multipath-tools: Installed: 0.4.8-14ubuntu4.10.04.1 Candidate: 0.4.8-14ubuntu4.10.04.1 Version table: 0.4.8-14ubuntu10.1 0 800 http://us.archive.ubuntu.com/ubuntu/ natty-updates/main Packages 0.4.8-14ubuntu10 0 800 http://us.archive.ubuntu.com/ubuntu/ natty/main Packages *** 0.4.8-14ubuntu4.10.04.1 0 900 http://us.archive.ubuntu.com/ubuntu/ lucid-updates/main Packages 100 /var/lib/dpkg/status 0.4.8-14ubuntu4 0 900 http://us.archive.ubuntu.com/ubuntu/ lucid/main Packages Do we have this pending SRU for lucid somewhere and lost track of it? http://people.canonical.com/~ubuntu-archive/pending-sru.html I don't see anything pending for multipath. Wasn't there a mass changeset planned for multipath lucid SRU that included this fix? -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to multipath-tools in Ubuntu. https://bugs.launchpad.net/bugs/690387 Title: udev block naming breaks failover and sd kref release cycle To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/multipath-tools/+bug/690387/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 690387] Re: udev block naming breaks failover and sd kref release cycle
Hi Peter, I seem to have lost track of what we were doing with this bug. Is it safe to assume that this is fix released in oneiric? Do we need to SRU the patch to lucid and natty? ** Changed in: multipath-tools (Ubuntu) Status: Confirmed => Incomplete -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to multipath-tools in Ubuntu. https://bugs.launchpad.net/bugs/690387 Title: udev block naming breaks failover and sd kref release cycle To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/multipath-tools/+bug/690387/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 690387] Re: udev block naming breaks failover and sd kref release cycle
** Tags added: patch -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to multipath-tools in ubuntu. https://bugs.launchpad.net/bugs/690387 Title: udev block naming breaks failover and sd kref release cycle -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 690387] Re: udev block naming breaks failover and sd kref release cycle
** Description changed: Binary package hint: multipath-tools - This was exposed on the Intel IMS SAN which is an ODM'd Promise Vtrak variant - on 10.04 server. The SAN has Active/Standby capabilities and is configured for failover. - It probably affects other SANs too. + This was exposed on the Intel IMS SAN which is an ODM'd Promise Vtrak + variant on 10.04 server. The SAN has Active/Standby capabilities and + is configured for failover. It probably affects other SANs too. Setup: multipath'd SAN consisting of SD block devices. Symptoms: - On failover, multipath isn't gettng the right signals to tear down the defunct - path. This was traced down to the fact that the path UDEV was presenting to - multipath was different from what it was expecting. It simply dropped the request - to gracefully remove the device, and instead responded to the SCSI mid-layer - SD IO state change, SDEV_CANCEL/DEL which puts the device offline. + On failover, multipath isn't gettng the right signals to tear down + the defunct path. This was traced down to the fact that the path UDEV + was presenting to multipath was different from what it was expecting. + It simply dropped the request to gracefully remove the device, and + instead responded to the SCSI mid-layer SD IO state change, + SDEV_CANCEL/DEL which puts the device offline. - Problem is device mapper still has an handle on the SD device, as can be seen - from /sys/block/dm-x/slaves, and as a result, scsi_target_destroy is never called. - The outward symptom of this is the SD suffix is not recycled because of course - the previous reference never dropped. + Problem is device mapper still has an handle on the SD device, as + can be seen from /sys/block/dm-x/slaves, and as a result, + scsi_target_destroy is never called. The outward symptom of this + is the SD suffix is not recycled because of course the previous + reference never dropped. Solution: - A fix was developed independently of upstream by Serge Hallyn, later it - was found that it was fixed upstream, in 2007. The patch is. + A fix was developed independently of upstream by Serge Hallyn, + later it was found that it was fixed upstream, in 2008. + The patch is: commit 7fa7affc3d23dd9dc906804d22a61144bca9f9b9 Author: Benjamin Marzinski Date: Thu Dec 11 16:03:28 2008 -0600 - Fix for uevent devpath handling + Fix for uevent devpath handling - This is necessary to make uevents work on fedora, since devpath appears as - something like: - '/devices/pci:00/:00:0a.0/:06:00.0/host11/rport-11:0-1/target11:0:1/11:0:1:0/block/s + This is necessary to make uevents work on fedora, since devpath appears as + something like: + '/devices/pci:00/:00:0a.0/:06:00.0/host11/rport-11:0-1/target11:0:1/11:0:1:0/block/s - It simply strips off the everything up to the /block. + It simply strips off the everything up to the /block. - Signed-off-by: Benjamin Marzinski + Signed-off-by: Benjamin Marzinski It integrates simply and can be found in PPAs here: ppa:peter-petrakis/storage -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to multipath-tools in ubuntu. https://bugs.launchpad.net/bugs/690387 Title: udev block naming breaks failover and sd kref release cycle -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 690387] Re: udev block naming breaks failover and sd kref release cycle
** Changed in: multipath-tools (Ubuntu) Assignee: (unassigned) => Serge Hallyn (serge-hallyn) ** Changed in: multipath-tools (Ubuntu) Importance: Undecided => High ** Changed in: multipath-tools (Ubuntu) Status: New => Confirmed -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to multipath-tools in ubuntu. https://bugs.launchpad.net/bugs/690387 Title: udev block naming breaks failover and sd kref release cycle -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 690387] Re: udev block naming breaks failover and sd kref release cycle
** Patch added: "0001-Fix-for-uevent-devpath-handling.patch" https://bugs.launchpad.net/ubuntu/+source/multipath-tools/+bug/690387/+attachment/1766245/+files/0001-Fix-for-uevent-devpath-handling.patch -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to multipath-tools in ubuntu. https://bugs.launchpad.net/bugs/690387 Title: udev block naming breaks failover and sd kref release cycle -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
