Red Hat Bugzilla – Bug 460874
lost packets when live migrating (RHEL4 XEN)
Last modified: 2018-10-19 19:44:28 EDT
Created attachment 315515 [details] Fix race condition on interface bring-up This patch is from: https://bugzilla.redhat.com/show_bug.cgi?id=453526#c18 https://bugzilla.redhat.com/attachment.cgi?id=311214 And was applied on the kernel 2.6.9-78
Created attachment 315517 [details] Use register_netdevice_notifier() instead of register_inetaddr_notifier() This patch was created based on comment 32 in bug #453526 https://bugzilla.redhat.com/show_bug.cgi?id=453526#c32 It applies on top of a 2.6.9-78 kernel.
Created attachment 315519 [details] Fix netdev_notify() This patch is based on comment 36 of bug #453526 https://bugzilla.redhat.com/show_bug.cgi?id=453526#c36 It applies on top of a kernel-2.6.9-78 source tree and complements previous attachment #315517 [details] (https://bugzilla.redhat.com/attachment.cgi?id=315517)
Created attachment 317446 [details] Fix race condition on interface bring-up Thanks for noticing this, the attachement for comment #1 is not the correct file, this is the correct patch. All three are required to fix the issue. Sorry for the mistake.
Thanks Olivier. This is the part of #458934 that we need for RHEL4.
Created attachment 318010 [details] Proposed/posted patch for rhel4.8. May want to consider backporting to rhel4.7 z-stream if critical need before 4.8 release.
Committed in 78.15.EL . RPMS are available at http://people.redhat.com/vgoyal/rhel4/
*** Bug 468290 has been marked as a duplicate of this bug. ***
*** Bug 473408 has been marked as a duplicate of this bug. ***
Customer confirmed that 78.15.EL has fixed the issue. Bill Internal Status set to 'Waiting on Engineering' This event sent from IssueTracker by bbraswel issue 222899
I tested many times of live migration with 2.6.9-78.ELxenU or 2.6.9-88.ELxenU on the domU, RHEL5-Server-U3 on the two dom0s. with 2.6.9-78.ELxenU, many packets lost. ... 64 bytes from 10.16.71.121: icmp_seq=74 ttl=59 time=314 ms 64 bytes from 10.16.71.121: icmp_seq=75 ttl=59 time=312 ms 64 bytes from 10.16.71.121: icmp_seq=76 ttl=59 time=313 ms 64 bytes from 10.16.71.121: icmp_seq=380 ttl=59 time=312 ms 64 bytes from 10.16.71.121: icmp_seq=381 ttl=59 time=310 ms 64 bytes from 10.16.71.121: icmp_seq=382 ttl=59 time=321 ms 64 bytes from 10.16.71.121: icmp_seq=383 ttl=59 time=311 ms ... with 2.6.9-88.ELxenU, shows no packet being lost.
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-2009-1024.html