[RHEL5] iptables restart fails and service hangs on "unloading module".

Solution Unverified - Updated -

Issue

  • iptables restart fails and service hangs on "unloading module" with below messages:.
  • kernel: INFO: task iptables-restor:29402 blocked for more than 120 seconds.
    kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
    kernel: iptables-rest D ffffffff80151248 0 29402 29395 (NOTLB)
    kernel: ffff810215721ad8 0000000000000082 00002b210a61d000 ffff81010d9a5540
    kernel: 00000000000000e8 0000000000000001 ffff810214a2a820 ffff81012fe46100
    kernel: 000692d32449e45c 000000000016fa74 ffff810214a2aa08 0000000b00000000
    kernel: Call Trace:
    kernel: [<ffffffff80064167>] wait_for_completion+0x79/0xa2
    kernel: [<ffffffff8008e16d>] default_wake_function+0x0/0xe
    kernel: [<ffffffff8009e566>] call_usermodehelper_keys+0xe3/0xf8
    kernel: [<ffffffff8009e57b>] __call_usermodehelper+0x0/0x4f
    kernel: [<ffffffff8009e953>] request_module+0x139/0x14d
    kernel: [<ffffffff88050065>] :ext3:ext3_journalled_write_end+0x10/0x13d
    kernel: [<ffffffff800c8dc6>] __rmqueue+0x91/0xc6
    kernel: [<ffffffff800cd378>] zone_statistics+0x3e/0x6d
    kernel: [<ffffffff80001c20>] _stext+0xc20/0x1000
    kernel: [<ffffffff80064ae3>] mutex_lock_interruptible+0x9/0x1e
    kernel: [<ffffffff88322f4a>] :x_tables:xt_find_match+0xbc/0xca
    kernel: [<ffffffff883312e0>] :ip_tables:translate_table+0x1d5/0x66e
    kernel: [<ffffffff8833256f>] :ip_tables:do_ipt_set_ctl+0xfe/0x256
    kernel: [<ffffffff80248446>] nf_sockopt+0xce/0x10c
    kernel: [<ffffffff802484a5>] nf_setsockopt+0x16/0x18
    kernel: [<ffffffff80250fee>] ip_setsockopt+0x61/0x78
    kernel: [<ffffffff80226d9c>] sys_setsockopt+0x91/0xb7
    kernel: [<ffffffff8005e28d>] tracesys+0xd5/0xe0
    kernel:
    kernel: INFO: task modprobe:29477 blocked for more than 120 seconds.
    kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
    kernel: modprobe D ffffffff80151248 0 29477 29451 (NOTLB)
    kernel: ffff8100ceab9ed8 0000000000000082 0000000000000296 ffffffff804a16f0
    kernel: ffffffff804a16f8 0000000000000001 ffff8100ccd11820 ffff81012fe46100
    kernel: 000692e662dd6f03 0000000000000b72 ffff8100ccd11a08 0000000b800640cb
    kernel: Call Trace:
    kernel: [<ffffffff8006410d>] wait_for_completion+0x1f/0xa2
    kernel: [<ffffffff802484ec>] nf_unregister_sockopt+0x45/0x5c
    kernel: [<ffffffff88332b90>] :ip_tables:ip_tables_fini+0x10/0x3f
    kernel: [<ffffffff800a77fb>] sys_delete_module+0x196/0x1c5
    kernel: [<ffffffff8005e28d>] tracesys+0xd5/0xe0
    

Environment

  • Red Hat Enterprise Linux 5.5

Subscriber exclusive content

A Red Hat subscription provides unlimited access to our knowledgebase of over 48,000 articles and solutions.

Current Customers and Partners

Log in for full access

Log In
Close

Welcome! Check out the Getting Started with Red Hat page for quick tours and guides for common tasks.