BUG: soft lockup - CPU stuck for 60s with RIP in tg3_poll

Solution Verified - Updated -

Issue

  • System logs BUG: soft lockup - CPU#5 stuck for 60s! with RIP in tg3:tg3_poll
Pid: 16956, comm: ip Tainted: P     ---- 2.6.18-308.24.1.el5 #1
RIP: 0010:[<ffffffff881cd97a>]  [<ffffffff881cd97a>] :tg3:tg3_poll+0x7aa/0x102c
...
Call Trace:
 <IRQ>  [<ffffffff80055330>] sk_reset_timer+0xf/0x19
 [<ffffffff8000c9b9>] net_rx_action+0xac/0x1b1
 [<ffffffff8001258d>] __do_softirq+0x89/0x133
 [<ffffffff8005e2fc>] call_softirq+0x1c/0x28
 <EOI>  [<ffffffff8006d646>] do_softirq+0x2c/0x7d
 [<ffffffff80096e9c>] local_bh_enable_ip+0x48/0x5a
 [<ffffffff881ca448>] :tg3:tg3_close+0x84/0x112
 [<ffffffff8023a230>] dev_close+0x53/0x77
Pid: 17191, comm: dsmc Tainted: P     ---- 2.6.18-274.17.1.el5 #1 
RIP: 0010:[<ffffffff8829b315>] [<ffffffff8829b315>] :tg3:tg3_poll+0x5e4/0xe37 
...
Call Trace: 
<IRQ> 
[<ffffffff8000ca57>] net_rx_action+0xac/0x1b1 
[<ffffffff80012575>] __do_softirq+0x89/0x133 
[<ffffffff8005e2fc>] call_softirq+0x1c/0x28 
[<ffffffff8006d646>] do_softirq+0x2c/0x7d 
[<ffffffff8005dc8e>] apic_timer_interrupt+0x66/0x6c 

Environment

  • Red Hat Enterprise Linux 5.7 or 5.8
  • Broadcom network interface with tg3 driver

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