blade servers form SFRAC cluster, LLT NIC working mode Auto-Negotiation often cause "network partition" and lead node panic
| Article:TECH188050 | | | Created: 2012-05-04 | | | Updated: 2012-09-22 | | | Article URL http://www.symantec.com/docs/TECH188050 |
Problem
blade servers form SFRAC cluster, LLT NIC working mode Auto-Negotiation often cause "network partition" and lead node panic
Error
KERNEL: usr/lib/debug/lib/modules/2.6.18-164.el5/vmlinux
DUMPFILE: /var/crash/2012-04-24-18:48/vmcore
CPUS: 16
DATE: Tue Apr 24 18:44:47 2012
UPTIME: 00:24:12
LOAD AVERAGE: 47.97, 17.43, 7.23
TASKS: 769
NODENAME: SBCJems2
RELEASE: 2.6.18-164.el5
VERSION: #1 SMP Fri Dec 3 08:56:42 CST 2010
MACHINE: x86_64 (2133 Mhz)
MEMORY: 23.6 GB
PANIC: "Kernel panic - not syncing: GAB: Port d halting system due to network failure at [14:2027]"
PID: 7691
COMMAND: "lltdlv"
TASK: ffff810314e0e860 [THREAD_INFO: ffff810314d6a000]
CPU: 11
STATE: TASK_RUNNING (PANIC)
KERNEL: usr/lib/debug/lib/modules/2.6.18-164.el5/vmlinux
DUMPFILE: /var/crash/2012-04-23-07:20/vmcore
CPUS: 16
DATE: Mon Apr 23 07:15:39 2012
UPTIME: 3 days, 18:15:58
LOAD AVERAGE: 105.29, 32.28, 12.47
TASKS: 1808
NODENAME: SBCJems2
RELEASE: 2.6.18-164.el5
VERSION: #1 SMP Fri Dec 3 08:56:42 CST 2010
MACHINE: x86_64 (2133 Mhz)
MEMORY: 23.6 GB
PANIC: "Kernel panic - not syncing: GAB: Port f halting system due to network failure at [14:2027]"
PID: 7889
COMMAND: "lltdlv"
TASK: ffff8104f819e040 [THREAD_INFO: ffff8104f61a0000]
CPU: 9
STATE: TASK_RUNNING (PANIC)
Environment
RHEL 5
SFRAC 5.1SP1
Cause
on blade server , all NIC connect through blade enclosure mainboard ,default working mode is Auto-Negotiation .
it should cause LLT NIC communication disconnect <--> connect frequently
after kernel port rejoin to gab, generation number conflict ,so I/O Fence panic the node
Solution
config all LLT NIC working mode to permanent mode , such as 100M Full Duplex , not using Auto-Negotiation
|
|
Article URL http://www.symantec.com/docs/TECH188050
Terms of use for this information are found in Legal Notices
Thank you.