Messages in this thread | | | Subject | Re: intermittant petabyte usage reported with broadcom nic | From | Roland Dreier <> | Date | Thu, 12 Apr 2007 16:28:37 -0700 |
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[Adding Michael Chan, who seems to look after bnx2, to the cc list]
> To clarify it's an Intel Dual Core Xeon (I just wound up as thinking of > them all as amd64s). Network card driver in use is the one defined by > CONFIG_BNX2. Kernel's monolithic.
From a quick look at bnx2.c, it seems that the driver gives the NIC (firmware?) a block of memory to DMA stats into, and just reads from that memory in its get_stats method. So if you're seeing wonky stats from the NIC intermittently, my best guess would be that firmware is occasionally writing junk into the stats block.
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