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Re: ESX 5.1.0 IPoIB NFS datastore freezes

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Hello,

 

in between I was able to narrow the error down to a quite simple testcase.

 

1) create a NFS mount inside a VM that uses the IPOIB network interface of the ESX host.

2) copy data via scp from somwhere into this machine onto the NFS mount

 

When the error occurs for the first time, one can read from the vmkernel.log:

 

WARNING: LinDMA: Linux_DMACheckContraints:149:Cannot

         map machine address = 0x15ffff37b0, length = 65160

         for device 0000:02:00.0; reason = buffer straddles

         device dma boundary (0xffffffff)

<3>vmnic_ib1:ipoib_send:504: found skb where it does not belong

                             tx_head = 323830, tx_tail =323830

<3>vmnic_ib1:ipoib_send:505: netif_queue_stopped = 0

Backtrace for current CPU #20, worldID=8212, ebp=0x41220051b028

ipoib_send@<None>#<None>+0x5d4 stack: 0x41800c4524aa, 0x4f0f5000000d

ipoib_send@<None>#<None>+0x5d4 stack: 0x41800c44bca8, 0x41000fe5d6c0

ipoib_start_xmit@<None>#<None>+0x53 stack: 0x41220051b238, 0x41800c4

...

 

Best regards.

 

Markus


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