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> card->low_watermark->next->dmac_cmd_status |= SPIDER_NET_DESCR_TXDESFLG; > mb(); > card->low_watermark->dmac_cmd_status &= ~SPIDER_NET_DESCR_TXDESFLG; > card->low_watermark = card->low_watermark->next; > > when we queue another frame for TX. I would have expected those to be racy vs. the hardware... what if the hardware is updating dmac_cmd_status just as your are trying to and the bit out of it ? Ben - 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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