The following is reported in the vmcore file:
KERNEL: vmlinux.3.10.0-1160.59.1.el7.x86_64
DUMPFILE: vmcore-xxxxxx. [PARTIAL DUMP]
CPUS: 32
DATE: Tue May 24 13:45:49 2022
UPTIME: 3 days, 21:14:57
LOAD AVERAGE: 0.08, 0.31, 0.44
TASKS: 1106
NODENAME: xxxxxxx.xxxxx.com
RELEASE: 3.10.0-1160.59.1.el7.x86_64
VERSION: #1 SMP Wed Feb 16 12:17:35 UTC 2022
MACHINE: x86_64 (2593 Mhz)
MEMORY: 144 GB
PANIC: "Kernel panic - not syncing: VxVM vxio V-5-3-2090 bulk_cleanup_verification: bad upd"
PID: 19769
COMMAND: "vxiod"
TASK: ffff8fd2f619b180 [THREAD_INFO: ffff8fcef1968000]
CPU: 31
STATE: TASK_RUNNING (PANIC)
crash> bt
PID: 19769 TASK: ffff8fd2f619b180 CPU: 31 COMMAND: "vxiod"
#0 [ffff8fcef196bbf0] machine_kexec at ffffffffbb2662f4
#1 [ffff8fcef196bc50] __crash_kexec at ffffffffbb322a32
#2 [ffff8fcef196bd20] panic at ffffffffbb9802cc
#3 [ffff8fcef196bda0] volrv_seclog_bulk_cleanup_verification at ffffffffc09f099a [vxio]
#4 [ffff8fcef196be18] volrv_seclog_write1_done at ffffffffc09f0a41 [vxio]
#5 [ffff8fcef196be48] voliod_iohandle at ffffffffc0827688 [vxio]
#6 [ffff8fcef196be88] voliod_loop at ffffffffc082787c [vxio]
#7 [ffff8fcef196bec8] kthread at ffffffffbb2c5e61
Network failures cause packets to arrive at the secondary in the incorrect order.
Enable VVR nmcom checksum. Up to and including Infoscale 8.x this is disabled by default, but will be enabled in future releases;
Confirm current setting:
# vxtune vol_nmcom_disable_checksum
Tunable Current Value Default Value Reboot Clusterwide
------------------------------- ------------- ------------- ------ -----------
vol_nmcom_disable_checksum 1 1 N N
To Enable:
# vxtune vol_nmcom_disable_checksum 0
Please note that this change is dynamic and persistent - it will take effect immediately and retain the new setting after reboots.