VMware VM running on RHEL7.6 encountered a kernel panic when executing the
below command:
/usr/sbin/tipc-config -ls=1.1.10:eth0-1.1.1:eth0
Has anybody encountered this issue? Any kind of assistance would be appreciated.
Please find below the version details for TIPC and RHEL of the Guest OS along
with the stack trace.
====================
TIPC Version Details
====================
TIPC configuration tool - 2.0.6
TIPC Kernel Module - 2.0.0
TIPC Module vermagic - 3.10.0-862.14.4.el7.x86_64 SMP mod_unload modversions
======================
VM RHEL Release info
======================
Linux cm.mplab.ics.com 3.10.0-957.el7.x86_64 #1 SMP Thu Oct 4 20:48:51 UTC 2018
x86_64 x86_64 x86_64 GNU/Linux
=============
Stack Trace
=============
crash> sy
CPUS: 8 [OFFLINE: 7]
DATE: Sun Aug 18 20:15:31 2019
LOAD AVERAGE: 0.02, 0.16, 0.25
NODENAME: cm.mplab.ics.com
RELEASE: 3.10.0-957.el7.x86_64
PANIC: "BUG: unable to handle kernel NULL pointer dereference at
0000000000000068"
crash> bt
PID: 95723 TASK: ffff9fac8f728000 CPU: 4 COMMAND: "tipc-config"
#0 [ffff9fad9af83808] panic at ffffffffa195b5ff
#1 [ffff9fad9af83888] oops_end at ffffffffa196c783
#2 [ffff9fad9af838b0] no_context at ffffffffa195aa7e
#3 [ffff9fad9af83900] __bad_area_nosemaphore at ffffffffa195ab15
#4 [ffff9fad9af83950] bad_area_nosemaphore at ffffffffa195ac86
#5 [ffff9fad9af83960] __do_page_fault at ffffffffa196f6b0
#6 [ffff9fad9af839d0] do_page_fault at ffffffffa196f915
#7 [ffff9fad9af83a00] page_fault at ffffffffa196b758
[exception RIP: tipc_cfg_do_cmd+0x2b0]
RIP: ffffffffc04db5f0 RSP: ffff9fad9af83ab8 RFLAGS: 00010292
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000004e61450
RDX: 0000000000000000 RSI: ffff9fad97673700 RDI: 0000000000000000
RBP: ffff9fad9af83af0 R8: 000000000001f120 R9: ffffffffa1824371
R10: ffff9fad9c71f120 R11: ffffdb4ae05d9c00 R12: 000000000100100a
R13: ffff9fad87f11c1c R14: 0000000000000040 R15: 000000000000001c
ORIG_RAX: ffffffffffffffff CS: 0010 SS: 0018
#8 [ffff9fad9af83af8] handle_cmd at ffffffffc04e46ae [tipc]
#9 [ffff9fad9af83b20] genl_family_rcv_msg at ffffffffa1877898
#10 [ffff9fad9af83be8] genl_rcv_msg at ffffffffa1877b1b
#11 [ffff9fad9af83c18] netlink_rcv_skb at ffffffffa1875b2b
#12 [ffff9fad9af83c40] genl_rcv at ffffffffa1876068
#13 [ffff9fad9af83c58] netlink_unicast at ffffffffa18754b0
#14 [ffff9fad9af83ca0] netlink_sendmsg at ffffffffa1875858
#15 [ffff9fad9af83d28] sock_aio_write at ffffffffa181857d
#16 [ffff9fad9af83df0] do_sync_write at ffffffffa14405b3
#17 [ffff9fad9af83ec8] vfs_write at ffffffffa14411a5
#18 [ffff9fad9af83f08] sys_write at ffffffffa1441ebf
#19 [ffff9fad9af83f50] system_call_fastpath at ffffffffa1974ddb
RIP: 00007fd854967fd0 RSP: 00007ffd425410e0 RFLAGS: 00010206
RAX: 0000000000000001 RBX: 000000000000005c RCX: 000000000259e080
RDX: 000000000000005c RSI: 000000000259e010 RDI: 0000000000000003 <---
RBP: 000000000259e010 R8: 0000000000000004 R9: 0000000000008104
R10: 00007ffd4254120c R11: 0000000000000246 R12: 000000000000005c
R13: 0000000000000003 R14: 000000000259e010 R15: 0000000000000008
ORIG_RAX: 0000000000000001 CS: 0033 SS: 002b
crash> pd 0x3
$1 = 3
crash> net -s
PID: 95723 TASK: ffff9fac8f728000 CPU: 4 COMMAND: "tipc-config"
FD SOCKET SOCK FAMILY:TYPE SOURCE-PORT DESTINATION-PORT
3 ffff9fad77000a00 ffff9fad97b37800 NETLINK/ROUTE:DGRAM
crash> socket.state,type ffff9fad77000a00
state = SS_UNCONNECTED
type = 0x2
#define AF_INET 2 /* Internet IP Protocol */
crash> ps -a ffff9fac8f728000
PID: 95723 TASK: ffff9fac8f728000 CPU: 4 COMMAND: "tipc-config"
ARG: /usr/sbin/tipc-config -ls=1.1.10:eth0-1.1.1:eth0
ENV: XDG_SESSION_ID=46274
MAILTO=
SHELL=/bin/sh
USER=mpug
PATH=/bin:/usr/bin
PWD=/home/mpug
LANG=en_US.UTF-8
HOME=/home/mpug
SHLVL=2
LOGNAME=mpug
XDG_RUNTIME_DIR=/run/user/29702
_=/usr/sbin/tipc-config
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