+++ This bug was initially created as a clone of Bug #578005 +++ MTU change (or other network reset events) with active iSCSI sessions will fail. iSCSI sessions do not recover and resources are leaked. This upstream patch will fix it: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=490475a9938f3480e1ab3a67063e547cea41c295 Requesting this to be included in RHEL5.5.z.
2 more cnic patches are required to completely fix the MTU change issue: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=48f753d2ba94a4081400fa8d26bdbfbbf12b10de http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=1f1332a3cb7ac73e3bcff6ea42ff965c90a29d12
This request was evaluated by Red Hat Product Management for inclusion in a Red Hat Enterprise Linux maintenance release. Product Management has requested further review of this request by Red Hat Engineering, for potential inclusion in a Red Hat Enterprise Linux Update release for currently deployed products. This request is not yet committed for inclusion in an Update release.
in kernel-2.6.18-221.el5 You can download this test kernel from http://people.redhat.com/jwilson/el5 Detailed testing feedback is always welcomed.
With kernel-2.6.18-221.el5 and iscsi-initiator-utils-6.2.0.872-10 (uIP 0.5.15), iSCSI sessions still do not recover after changing MTU sizes. The problem appears to be uIP-related since it does work when I add a newer internal version of uIP on top of the above components.
Slight mistake to the above iscsi-initiator version... it should be iscsi-initiator-utils-6.2.0.872-2.el5.x86_64.rpm (the latest RH5.6 initiator at the moment... http://people.redhat.com/mchristi/iscsi/rhel5.6/iscsi-initiator-utils/). Revised: With kernel-2.6.18-221.el5 and iscsi-initiator-utils-6.2.0.872-2 (uIP 0.5.15), iSCSI sessions still do not recover after changing MTU sizes. The problem appears to be uIP-related since it does work when I add a newer internal version of uIP on top of the above components.
Hey Edward, What is still needed? Is iscsi-initiator-utils's uip missing a patch from another bugzilla?
This problem is no longer seen with kernel-2.6.18-232.el5 and iscsi-initiator-utils-6.2.0.872-6.el5.x86_64.rpm (uIP 0.6.2.2).
An advisory has been issued which should help the problem described in this bug report. This report is therefore being closed with a resolution of ERRATA. For more information on therefore solution and/or where to find the updated files, please follow the link below. You may reopen this bug report if the solution does not work for you. http://rhn.redhat.com/errata/RHSA-2011-0017.html