/var/log/messages error "kernel: RPC: bad TCP reclen"

 
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Operating Systems Linux Red Hat /var/log/messages error "kernel: RPC: bad TCP reclen"
# 1  
Old 03-06-2012
/var/log/messages error "kernel: RPC: bad TCP reclen"

Hi,
I am seeing the following errors in my environment, not sure why is it happening, any ideas? Thanks.

kernel: RPC: bad TCP reclen 0x73746174 (non-terminal ) Dec 17 02:14:48 kernel: RPC: bad TCP reclen 0x63480000 (large) Dec 17 02:14:48
kernel: RPC: bad TCP reclen 0x633f0000 (large) Dec 17 02:14:48
kernel: RPC: bad TCP reclen 0x1201001a (non-terminal
# 2  
Old 03-08-2012
What kernel version are you on? Also is the output of both these commands ran on each of the interfaces?

Code:
# ifconfig ethX | grep MTU
# ethtool -i ethX | grep driver

Basically there was a rpc regression a while back where if you were using jumbo frames then it would kick out the same error.

Last edited by thmnetwork; 03-08-2012 at 10:13 AM..
# 3  
Old 03-28-2012
Sorry about the delay, No it dont display those info, and its a vmware environment. So as per vendor policy they wont disclose the NICs physical info. I am aware of the bug previously reported. But not sure if its a jumbo frame. Any other guesses? the output is below:

# uname -r
2.6.18-274.12.1.el5

# ifconfig ethX | grep MTU
ethX: error fetching interface information: Device not found
# ethtool -i ethX | grep driver
Cannot get driver information: No such device
# 4  
Old 03-28-2012
You need to replace the X with the appropriate number for your device.
# 5  
Old 03-30-2012
Sorry wasnt paying attention, but i did try those commands before. Below are out puts, but since its vmxnet3, how to know if its jumbo frames ?


# ifconfig eth0 | grep MTU
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
# ethtool -i eth0 | grep driver
driver: vmxnet3
# 6  
Old 03-30-2012
the MTU would be 9000, so you are not using jumbo frames here, at least
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