Date: Thu, 13 Feb 2014 22:01:56 +0300 From: David Naylor <dbn@freebsd.org> To: stable@freebsd.org Subject: MPCP Opcode Pause and unresponsive computer Message-ID: <1403963.5sDsKbxfoF@dragon.dg>
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Hi,
I recently installed FreeBSD 10.0-RELEASE on an headless Intense-PC. I am
experiencing two network related issues with the computer.
First issue
-----------
When compiling lang/ruby19 the network freezes. The build was done directly
from the command line using ssh. After a while ssh reports "Write failed:
Broken pipe". I attached the monitor and no messages were displayed on the
output (and the machine was still running).
The Intense-PC does not respond to pings at this point either. Of note, I was
capable of transferring multiple GB of data and successfully compiled other
ports but compiling lang/ruby19 messes up everything.
Second issue
------------
After a period of uptime (after the freeze from building lang/ruby19) the
entire network stops working, nothing is capable of connecting or
communicating on the network. When I do a tcpdump (from a different, affected
computer) I find the following:
20:57:58.254626 MPCP, Opcode Pause, length 46
These messages get repeated a few times a second. The moment I disconnect the
Intense-PC from the network functionality is restored (and is clearly
illustrated by the tcpdump).
Information
-----------
# uname -a
FreeBSD dragonbsd 10.0-RELEASE FreeBSD 10.0-RELEASE #0 d44ce30(releng/10.0):
Sun Feb 9 20:11:55 SAST 2014
root@dragon.dg:/tmp/home/freebsd/10.0/src/sys/MODULAR amd64
# ifconfig
lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> metric 0 mtu 16384
options=600003<RXCSUM,TXCSUM,RXCSUM_IPV6,TXCSUM_IPV6>
inet6 ::1 prefixlen 128
inet6 fe80::1%lo0 prefixlen 64 scopeid 0x1
inet 127.0.0.1 netmask 0xff000000
nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL>
em0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
options=4219b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM,TSO4,WOL_MAGIC,VLAN_HWTSO>
ether XX:XX:XX:XX:XX:XX
inet 192.168.0.160 netmask 0xffffff00 broadcast 192.168.0.255
nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
media: Ethernet autoselect (100baseTX <full-duplex>)
status: active
re0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
options=8209b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM,WOL_MAGIC,LINKSTATE>
ether XX:XX:XX:XX:XX:XX
nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
media: Ethernet autoselect (none)
status: no carrier
Any assistance to resolve this issue will be greatly appreciated.
Regards,
P.S. Please keep me CC'ed, I'm not subscribed on the list.
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