On 1/23/07, Dale Farnsworth <[EMAIL PROTECTED]> wrote:
From Dale Farnsworth <[EMAIL PROTECTED]>mv643xx_eth: Fix race condition in mv643xx_eth_free_tx_descs This bug was found and isolated by Thibaut VARENE <[EMAIL PROTECTED]> and Jarek Poplawski <[EMAIL PROTECTED]>. This patch is a modification of their fixes. We acquire and release the lock for each descriptor that is freed to minimize the time the lock is held. --- drivers/net/mv643xx_eth.c | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-) diff --git a/drivers/net/mv643xx_eth.c b/drivers/net/mv643xx_eth.c index c41ae42..b3bf864 100644 --- a/drivers/net/mv643xx_eth.c +++ b/drivers/net/mv643xx_eth.c @@ -332,13 +339,13 @@ int mv643xx_eth_free_tx_descs(struct net if (skb) mp->tx_skb[tx_index] = NULL; - spin_unlock_irqrestore(&mp->lock, flags); - if (cmd_sts & ETH_ERROR_SUMMARY) { printk("%s: Error in TX\n", dev->name); mp->stats.tx_errors++; }
Note that this printk probably won't show immediately because IRQs are disabled. But that's maybe not a big deal. HTH -- Thibaut VARENE http://www.parisc-linux.org/~varenet/ - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
