Description of problem:

Not even 7 hours of run-time... with kernel as offered by redhat to address bug #167715

Nov  6 14:27:06 karashi kernel: ------------[ cut here ]------------
Nov  6 14:27:06 karashi kernel: kernel BUG at net/ipv6/ip6_output.c:714!
Nov  6 14:27:06 karashi kernel: invalid operand: 0000 [#1]
Nov  6 14:27:06 karashi kernel: SMP
Nov  6 14:27:06 karashi kernel: Modules linked in: md5 ipv6 dm_mirror dm_mod button battery ac uh
ci_hcd ehci_hcd tg3 ext3 jbd megaraid_mbox megaraid_mm sd_mod scsi_mod
Nov  6 14:27:06 karashi kernel: CPU:    0
Nov  6 14:27:06 karashi kernel: EIP:    0060:[<f8a6c8a8>]    Not tainted VLI
Nov  6 14:27:06 karashi kernel: EFLAGS: 00010282   (2.6.9-42.22.ELsmp)
Nov  6 14:27:06 karashi kernel: EIP is at ip6_fragment+0x685/0x7ce [ipv6]
Nov  6 14:27:06 karashi kernel: eax: fffffff2   ebx: f5dfca80   ecx: 00000000   edx: f6cf2a80
Nov  6 14:27:06 karashi kernel: esi: f3b57160   edi: fffffd30   ebp: fffffd30   esp: f7274c14
Nov  6 14:27:06 karashi kernel: ds: 007b   es: 007b   ss: 0068
Nov  6 14:27:06 karashi kernel: Process named (pid: 3610, threadinfo=f7274000 task=f7187830)
Nov  6 14:27:06 karashi kernel: Stack: 00000000 86274eb0 00000000 000007c8 83010000 
ffffff31 0000
07c8 fffffd30
Nov  6 14:27:06 karashi kernel:        f3b55758 f689d080 f8a6b409 f5dfca80 f6cf2a80 f3b569c8 f6cf
2a80 f3b56998
Nov  6 14:27:06 karashi kernel:        f69f9880 00000000 f8a6d5da f621ee50 f689d080 00000000 
f621
eea4 f621ee00
Nov  6 14:27:06 karashi kernel: Call Trace:
Nov  6 14:27:06 karashi kernel:  [<f8a6b409>] ip6_output2+0x0/0x235 [ipv6]
Nov  6 14:27:06 karashi kernel:  [<f8a6d5da>] ip6_push_pending_frames+0x291/0x369 [ipv6]
Nov  6 14:27:06 karashi kernel:  [<f8a7bb2d>] udp_v6_push_pending_frames+0x169/0x185 [ipv6]
Nov  6 14:27:06 karashi kernel:  [<f8a7c16b>] udpv6_sendmsg+0x622/0x770 [ipv6]
Nov  6 14:27:06 karashi kernel:  [<c027d0e7>] skb_dequeue+0x40/0x46
Nov  6 14:27:06 karashi kernel:  [<c027dc5d>] skb_recv_datagram+0x61/0x9b
Nov  6 14:27:06 karashi kernel:  [<c02bb071>] inet_sendmsg+0x38/0x42
Nov  6 14:27:06 karashi kernel:  [<c027836d>] sock_sendmsg+0xdb/0xf7
Nov  6 14:27:06 karashi kernel:  [<c02d5822>] reschedule_interrupt+0x1a/0x20
Nov  6 14:27:06 karashi kernel:  [<c011de62>] find_busiest_group+0xdd/0x295
Nov  6 14:27:06 karashi kernel:  [<c0120519>] autoremove_wake_function+0x0/0x2d
Nov  6 14:27:06 karashi kernel:  [<c0279ab8>] sys_sendmsg+0x1ee/0x23b
Nov  6 14:27:06 karashi kernel:  [<c02d3576>] schedule_timeout+0xb9/0x154
Nov  6 14:27:06 karashi kernel:  [<c0150835>] find_extend_vma+0x12/0x4f
Nov  6 14:27:06 karashi kernel:  [<c01350ec>] unqueue_me+0x73/0x79
Nov  6 14:27:06 karashi kernel:  [<c0150835>] find_extend_vma+0x12/0x4f
Nov  6 14:27:06 karashi kernel:  [<c0134b9f>] get_futex_key+0x39/0x108
Nov  6 14:27:06 karashi kernel:  [<c0134d78>] futex_wake+0x9f/0xc5
Nov  6 14:27:06 karashi kernel:  [<c0279ebf>] sys_socketcall+0x1df/0x1fb
Nov  6 14:27:06 karashi kernel:  [<c02d4e27>] syscall_call+0x7/0xb
Nov  6 14:27:06 karashi kernel:  [<c02d007b>] ipv6_skip_exthdr_nolen+0x71/0x100
Nov  6 14:27:06 karashi kernel: Code: 89 44 24 10 eb 0b 8b 4c 24 10 8b 54 24 20 89 4a 04 8b 44 24
 2c 8b 48 24 8b 44 24 30 55 8b 54 24 10 e8 e3 fe 80 c7 5f 85 c0 74 08 <0f> 0b ca 02 62 c9 a8 f8 0
f b7 44 24 08 0f b6 d0 c1 e2 08 c1 e8
Nov  6 14:27:06 karashi kernel:  <0>Fatal exception: panic in 5 seconds

Version-Release number of selected component (if applicable):


How reproducible:

under hh ipv6 DNS load. easily 7 hours.


See previous bug 167715 for what has been done to date and ascertain a history of the issues.

This is a major issue for my organisation. Failure to rectify this IPv6 issue promptly will encourage the 
organisation to change platforms.