[3737836.997125] BUG: spinlock lockup on CPU#0, ppImage/17962, ffff8806b90008c0
[3737836.997127] Pid: 17962, comm: ppImage Tainted: G      D W  2.6.28-rc7-00105
-gfeaf384 #4
[3737836.997128] Call Trace:
[3737836.997128]  <IRQ>  [<ffffffff803a103f>] _raw_spin_lock+0xfb/0x122
[3737836.997131]  [<ffffffff805444ba>] tcp_delack_timer+0x0/0x1f2
[3737836.997133]  [<ffffffff805444cd>] tcp_delack_timer+0x13/0x1f2
[3737836.997134]  [<ffffffff80241e07>] run_timer_softirq+0x169/0x1dd
[3737836.997136]  [<ffffffff8024ec57>] ktime_get+0xc/0x41
[3737836.997138]  [<ffffffff8023e144>] __do_softirq+0x7a/0x13d
[3737836.997139]  [<ffffffff8020d07c>] call_softirq+0x1c/0x28
[3737836.997141]  [<ffffffff8020e028>] do_softirq+0x2c/0x68
[3737836.997143]  [<ffffffff8023e084>] irq_exit+0x3f/0x85
[3737836.997144]  [<ffffffff8021e66d>] smp_apic_timer_interrupt+0x93/0xac
[3737836.997146]  [<ffffffff8020cacb>] apic_timer_interrupt+0x6b/0x70
[3737836.997147]  <EOI>  [<ffffffffa017dc48>] e1000_clean+0x8f/0x262 [e1000e]
[3737768.327067]  [<ffffffff8051870b>] net_rx_action+0xc5/0x1fb
[3737768.327067]  [<ffffffff8051869d>] net_rx_action+0x57/0x1fb

[3737768.327067]  [<ffffffff8023e144>] __do_softirq+0x7a/0x13d
[3737768.327067]  [<ffffffff8020d07c>] call_softirq+0x1c/0x28
[3737768.327067]  [<ffffffff8020e028>] do_softirq+0x2c/0x68
[3737768.327067]  [<ffffffff8023e084>] irq_exit+0x3f/0x85
[3737768.327067]  [<ffffffff8020e1ae>] do_IRQ+0x14a/0x16c
[3737768.327067]  [<ffffffff8020c2f6>] ret_from_intr+0x0/0xa