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Subject: [BUG] fib_tries related Oops in 2.6.30
From: Yan Zheng <zheng.yan@oracle.com>
To: linux-kernel@vger.kernel.org, netdev@vger.kernel.org
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Hello,

I pull linux-2.6.30 from linus-2.6 git tree. I got following oops
immediately after boot.

# uname -a
Linux zhyan-cn 2.6.30 #1 SMP PREEMPT Wed Jun 10 23:37:22 CST 2009 i686
i686 i386 GNU/Linux

---
BUG: sleeping function called from invalid context at
/mnt/sda7/linux-2.6/mm/slub.c:1598
in_atomic(): 1, irqs_disabled(): 0, pid: 2286, name: NetworkManager
Pid: 2286, comm: NetworkManager Not tainted 2.6.30 #1
Call Trace:
 [<c042568c>] __might_sleep+0xfc/0x103
 [<c049bb79>] __kmalloc+0x7c/0x132
 [<c0697be5>] ? tnode_new+0x27/0x69
 [<c0697be5>] tnode_new+0x27/0x69
 [<c0697d36>] resize+0x94/0x666
 [<c049ac13>] ? __slab_alloc+0xc2/0x4b3
 [<c0697be5>] ? tnode_new+0x27/0x69
 [<c049bc23>] ? __kmalloc+0x126/0x132
 [<c0698384>] trie_rebalance+0x7c/0xde
 [<c0698d77>] fn_trie_insert+0x644/0x6d6
 [<c0427da7>] ? try_to_wake_up+0x2c4/0x2ce
 [<c0427dbc>] ? default_wake_function+0xb/0xd
 [<c069402e>] fib_magic+0x99/0xa8
 [<c069412c>] fib_add_ifaddr+0xef/0x111
 [<c0694178>] fib_inetaddr_event+0x2a/0x1a9
 [<c06cd5a9>] notifier_call_chain+0x2b/0x4a
 [<c0444189>] __blocking_notifier_call_chain+0x37/0x4c
 [<c04441aa>] blocking_notifier_call_chain+0xc/0xe
 [<c068d8f4>] __inet_insert_ifa+0xf9/0x104
 [<c068eb28>] inet_rtm_newaddr+0x16f/0x177
 [<c068e9b9>] ? inet_rtm_newaddr+0x0/0x177
 [<c065218c>] rtnetlink_rcv_msg+0x196/0x1b0
 [<c0651ff6>] ? rtnetlink_rcv_msg+0x0/0x1b0
 [<c065fbac>] netlink_rcv_skb+0x30/0x78
 [<c0651fee>] rtnetlink_rcv+0x1c/0x24
 [<c065f78e>] netlink_unicast+0xee/0x144
 [<c065fa27>] netlink_sendmsg+0x243/0x250
 [<c063d1f4>] __sock_sendmsg+0x45/0x4e
 [<c063d978>] sock_sendmsg+0xb8/0xce
 [<c044072b>] ? autoremove_wake_function+0x0/0x33
 [<c044072b>] ? autoremove_wake_function+0x0/0x33
 [<c044072b>] ? autoremove_wake_function+0x0/0x33
 [<c0523aa7>] ? copy_from_user+0x34/0x11b
 [<c0644ba4>] ? verify_iovec+0x40/0x70
 [<c063dacd>] sys_sendmsg+0x13f/0x192
 [<c063e67a>] ? sys_recvmsg+0x16d/0x17a
 [<c041f6b4>] ? kunmap_atomic+0x8b/0xa3
 [<c0489a88>] ? do_wp_page+0x515/0x5ac
 [<c044072b>] ? autoremove_wake_function+0x0/0x33
 [<c041af58>] ? paravirt_get_lazy_mode+0xe/0x1b
 [<c041b128>] ? arch_flush_lazy_mmu_mode+0x47/0x5b
 [<c041f799>] ? kmap_atomic_prot+0xcd/0xeb
 [<c048af8c>] ? handle_mm_fault+0x58d/0x5e8
 [<c063eb09>] sys_socketcall+0x153/0x183
 [<c0403298>] sysenter_do_call+0x12/0x2d
--
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