Messages in this thread | | | From | Herbert Xu <> | Subject | Re: auro deadlock (was Re: e100 lockdep irq lock inversion.) | Date | Sat, 08 Jul 2006 13:06:59 +1000 |
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Arjan van de Ven <arjan@infradead.org> wrote: > > Act 1 > > Enter the mpi_start_xmit() function, which is airo's xmit function. > This function takes the aux_lock first, with irq's off, then calls > skb_queue_tail(). skb_queue_tail takes the sk_receive_queue.lock (with > irqsave as well).
Nope, make that ai->txq.
> Act 2 > > Enter the ipcalc program. This program calls an ioctl, which ends up > calling udp_ioctl. udp_ioctl does > spin_lock_bh(&sk->sk_receive_queue.lock);
Different queue.
So no deadlock. Better luck next time :) -- Visit Openswan at http://www.openswan.org/ Email: Herbert Xu ~{PmV>HI~} <herbert@gondor.apana.org.au> Home Page: http://gondor.apana.org.au/~herbert/ PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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