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location Honolulu, HI
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visits member for 3 years, 5 months
seen Jan 21 at 4:08

Jan
21
comment Linux machines cause network to freeze
@maf I replaced the NIC in one of the machines and have not seen the problem repeat. Must be a bug in the Linux kernel driver, but not sure how to explain it well enough to report it to the right people. Damn intermittents...
Aug
27
comment Linux machines cause network to freeze
I took some Wireshark data today when one of my machines crashed with this problem. The only activity seen by WS was the host machine looking for the rest of the network. As soon as the trouble PC was rebooted all normal network activity promptly appeared in WS. The log files on the problem machine show no problems only a gap in activity.
Aug
27
comment Linux machines cause network to freeze
I just experienced this problem again while VirtualBox was left running Windows 7 over the weekend.
May
28
awarded  Student
May
28
comment Linux machines cause network to freeze
Wireshark has already uncovered several configuration problems with machines on my network, but nothing yet that relates to the machines of interest. I will have to wait for the network freeze up to recur to see what packets are flying around.
May
28
comment Linux machines cause network to freeze
I do occasionally run VirtualBox on one of the trouble machines (possibly in a bridged configuration) and I have noticed that it is more likely to crash when VB is left running overnight.
May
28
comment Linux machines cause network to freeze
netmask, broadcast, etc. are all set by DHCP on the problem machines. They seem to be set properly for my network. 192.168.0.255 and 255.255.255.0
May
28
comment Linux machines cause network to freeze
There are presently three switches, all TrendNET. One 16-port and two 8-port. I have tried switching out for D-link and Linksys switches with no effect on the problem. Power cycling the switch that the problem machine is connected to will usually fix the problem temporarily, even if the packets keep coming.
May
28
comment Linux machines cause network to freeze
The linux boxes are different hardware but both have the same NIC (Intel 82579LM onboard Gigabit). The Ubuntu machine is running 3.2.0-38-generic and the Mint machine has 3.5.0-17-generic kernel. No bridging or other interesting network configuration. The only software running is homebrew data acquisition and instrumentation control, but there is typically no software running when the problem occurs (usually overnight).
May
28
asked Linux machines cause network to freeze