Vaughn Clinton wrote:
> All,
>
> I've got a quick question about the stack trace below. I see the
> flags <IRQ> and <EOI> in this trace and would like to understand
> better what this means. My swag is that it's showing that the stack
> trace is running in interrupt context when the kernel panic'd.
<IRQ> is 'Interrupt Request', <EOI> is "End Of Interrupt'.
(ret_from_intr is called after handling an interrupt)
[arch/<arch>/kernel/entry_{32/64}.S]
Yes, looks like your kernel panic'd while in interrupt context.
(netif_receive_skb is called from NET_RX_SOFTIRQ handler, and it is in
bottom-half context, but acc. to your stack trace
it looks like it has been interrupted by an interrupt, but that should
be fine.)
Correct me if i am wrong
>
> Anyway, thanks in advance for the help ...
>
> Cheers,
>
> node1 kernel: <IRQ> [<ffffffff8021f155>] netif_receive_skb+0x2b7/0x2d7
> node1 kernel: [<ffffffff881ca79f>]
> :ib_ipoib:ipoib_ib_completion+0x92/0x492
> node1 kernel: [<ffffffff8021b7c6>] __mod_timer+0xb1/0xbf
> node1 kernel: [<ffffffff8816a4fa>] :ib_mthca:mthca_eq_int+0x7a/0x38a
> node1 kernel: [<ffffffff8024cc16>] hrtimer_run_queues+0x173/0x195
> node1 kernel: [<ffffffff8026277e>] _spin_unlock_irq+0x6/0xa
> node1 kernel: [<ffffffff8816a99c>]
> :ib_mthca:mthca_arbel_interrupt+0x39/0x8b
> node1 kernel: [<ffffffff802102f8>] handle_IRQ_event+0x23/0x51
> node1 kernel: [<ffffffff802a4f5c>] handle_fasteoi_irq+0x8e/0xce
> node1 kernel: [<ffffffff802683a8>] do_IRQ+0x7b/0xc0
> node1 kernel: [<ffffffff8025d641>] ret_from_intr+0x0/0xa
> node1 kernel: <EOI>
cu
Venky
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