2.6.15-rc5 spits oodles of hw csum failures

From: Jens Axboe
Date: Fri Dec 09 2005 - 07:09:45 EST


Hi,

Just booted -rc5 on another one of my boxes, and I get literally tons of
these everytime there's some network activity:

printk: 300 messages suppressed.
<NULL>: hw csum failure.

Call Trace: <IRQ> <ffffffff80357463>{__skb_checksum_complete+76}
<ffffffff80381e89>{tcp_rcv_established+1384}
<ffffffff80388ee9>{tcp_v4_d}
<ffffffff8038a4ee>{tcp_v4_rcv+2285}
<ffffffff8036f59f>{ip_local_deliver+}
<ffffffff8036f480>{ip_rcv+1043}
<ffffffff8035bc0a>{netif_receive_skb+460}
<ffffffff8035bd08>{process_backlog+142}
<ffffffff8035a8a5>{net_rx_action}
<ffffffff8013641e>{__do_softirq+100}
<ffffffff8010ef9b>{call_softirq+31}
<ffffffff8011028c>{do_softirq+44} <ffffffff801102c4>{do_IRQ+52}
<ffffffff8010df9a>{ret_from_intr+0} <EOI>
<ffffffff8010c4a3>{default_id}
<ffffffff8010c547>{cpu_idle+97}
<ffffffff806327d5>{start_kernel+389}
<ffffffff8063225e>{_sinittext+606}

The box is using the sk98lin driver.

--
Jens Axboe

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