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Network Connectivity Is Lost and "WARNING: Uplink: 1925: Couldn't allocate pkt for frame copy" Appears in the Log (2274)
Note: This issue is resolved in ESX Server 3.0.1.
When you use a network adapter without scatter or gather capability, a memory leak exists that can lead to the loss of network connectivity. The message WARNING: Uplink: 1925: Couldn't allocate pkt for frame copy appears in the log.
To the best of our knowledge, the following cards are vulnerable to this problem:
- e1000 with PCI ID 0x1000
- e100 with PCI *rev* ID less than 0x0c (that is 4, 5, 8, 9)
- Some Broadcom 5700 network adapters
To work around this issue:
Use the following command to increase the heap size:
esxcfg-advcfg -k 16777216 netPktHeapMinSize
- Reboot the system.
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