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Oracle Linux: Server Crash after executing iptables command. (Doc ID 2671268.1)

Last updated on JUNE 03, 2020

Applies to:

Linux OS - Version Oracle Linux 6.10 and later
Linux x86-64

Symptoms

Server crashed with iptables service issue.

crash7latest> bt
PID: 24217 TASK: ffff8806bb24a500 CPU: 4 COMMAND: "modprobe.ksplic"
#0 [ffff88078502fa40] xen_panic_event at ffffffff810034b2
#1 [ffff88078502fa60] notifier_call_chain at ffffffff81518465
#2 [ffff88078502faa0] atomic_notifier_call_chain at ffffffff815184ca
#3 [ffff88078502fab0] panic at ffffffff81510944
#4 [ffff88078502fb30] oops_end at ffffffff815155ea
#5 [ffff88078502fb60] no_context at ffffffff8104980c
#6 [ffff88078502fba0] __bad_area_nosemaphore at ffffffff81049935
#7 [ffff88078502fbf0] bad_area_nosemaphore at ffffffff81049a93
#8 [ffff88078502fc00] do_page_fault at ffffffff815182c8
#9 [ffff88078502fd10] page_fault at ffffffff8151482c
[exception RIP: __ticket_spin_lock+9]
RIP: ffffffff810420a9 RSP: ffff88078502fdc8 RFLAGS: 00010206
RAX: 0000000000010000 RBX: 000000000000011c RCX: ffffffffa017d978
RDX: ffff880781572000 RSI: 0000000000000006 RDI: 000000000000011c
RBP: ffff88078502fdc8 R8: ffffea0017862b20 R9: 0000000000000000
R10: ffff88080fffcbf8 R11: 0000000000000001 R12: 000000000000011c
R13: ffff880781572600 R14: ffff8807df0b9000 R15: ffffffff81845640
ORIG_RAX: ffffffffffffffff CS: 0010 SS: 0018
#10 [ffff88078502fdd0] _raw_spin_lock_bh at ffffffff81513a2e
#11 [ffff88078502fdf0] ip_vs_dst_event at ffffffffa016a077 [ip_vs]
#12 [ffff88078502fe50] unregister_netdevice_notifier at ffffffff814440a7
#13 [ffff88078502fe80] ip_vs_control_cleanup at ffffffffa0167795 [ip_vs]
#14 [ffff88078502fe90] cleanup_module at ffffffffa0175ec2 [ip_vs]
#15 [ffff88078502fea0] sys_delete_module at ffffffff810afa5e
#16 [ffff88078502ff50] system_call_fastpath at ffffffff8151ca58
RIP: 00007fb4ba894157 RSP: 00007ffda8469f98 RFLAGS: 00010202
RAX: 00000000000000b0 RBX: 00007ffda846a140 RCX: 00007ffda8469ec0
RDX: 00007ffda8469f8f RSI: 0000000000000080 RDI: 0000000000b12bd0
RBP: 0000000000b12bd0 R8: 00007fb4bab39e40 R9: 00007fb4ba8ed400
R10: 00007ffda8469d20 R11: 0000000000000202 R12: 0000000000000001
R13: 0000000000000000 R14: 0000000000b12820 R15: 0000000000000000
ORIG_RAX: 00000000000000b0 CS: 0033 SS: 002b

Changes

  1. Reconfiguration of iptables.   

Cause

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In this Document
Symptoms
Changes
Cause
Solution
References


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