[Bug 827670] New: DLM: DLM SCTP error handling fixes
https://bugzilla.novell.com/show_bug.cgi?id=827670 https://bugzilla.novell.com/show_bug.cgi?id=827670#c0 Summary: DLM: DLM SCTP error handling fixes Classification: openSUSE Product: openSUSE 12.3 Version: Final Platform: Other OS/Version: SLES 11 Status: NEW Severity: Normal Priority: P5 - None Component: Kernel AssignedTo: kernel-maintainers@forge.provo.novell.com ReportedBy: michaelc@cs.wisc.edu QAContact: qa-bugs@suse.de Found By: --- Blocker: --- User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130308 Firefox/17.0 This is a request to bring in fixes from upstream for DLM SCTP support. The following patches fix issues that occur when the initial link is not up. https://www.redhat.com/archives/cluster-devel/2013-June/msg00123.html https://www.redhat.com/archives/cluster-devel/2013-June/msg00118.html https://www.redhat.com/archives/cluster-devel/2013-June/msg00119.html https://www.redhat.com/archives/cluster-devel/2013-June/msg00120.html https://www.redhat.com/archives/cluster-devel/2013-June/msg00122.html https://www.redhat.com/archives/cluster-devel/2013-June/msg00121.html Not DLM SCTP related, but a DLM fix for a issue that was found in our testing: https://www.redhat.com/archives/cluster-devel/2013-June/msg00180.html These patches have been accepted by the DLM maintainer https://www.redhat.com/archives/cluster-devel/2013-June/msg00184.html https://www.redhat.com/archives/cluster-devel/2013-June/msg00117.html so they should be in the next upstream kernel feature window. Reproducible: Always Steps to Reproduce: 1. Setup DLM to use SCTP. 2. Pull primary link. 3. Start up a service that uses DLM. Actual Results: DLM will fail to connect to the other nodes and DLM operations will fail. Expected Results: With the patches DLM will use the secondary link. We have ported the upstream patches to the SLES 11 sp2 kernel. There have been some changes to the DLM code, so if you want the backport we did let me know and I can send the patches. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=827670 https://bugzilla.novell.com/show_bug.cgi?id=827670#c1 --- Comment #1 from Mike Christie <michaelc@cs.wisc.edu> 2013-07-08 19:12:31 UTC --- Was not sure if I should make another bugzilla, but to get SCTP to work nicely with DLM, we also need this SCTP patch commit 5aa93bcf66f4af094d6f11096e81d5501a0b4ba5 Author: Neil Horman <nhorman@tuxdriver.com> Date: Sat Jul 21 07:56:07 2012 +0000 sctp: Implement quick failover draft from tsvwg Without it, to get fast failovers you have to set /proc/sys/net/sctp/path_max_retrans really low. But the problem is if the path comes back, the retries will be used and the association will not be used. With the pf_retrans being added in that patch, we can set the pf_retrans low and get fast failovers and we can set path_max_retrans higher to allow higher number of total failures. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
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