[mythtv-users] Re: Samba 3 better than NFS 3 for recording over Ethernet

Yeechang Lee ylee at pobox.com
Thu Dec 29 07:44:45 EST 2005

Ryan Steffes wrote:
> Hmm, I wonder if this may be related to why nfs apparently locks my
> machine in heavy use.  It started when I switched to gigabit nics
> and I was blaming the cards, until I realized I could do high data
> transfers with the computer as long as I don't use nfs.

Simon Lundell <simon.lundell at his.se> says:
> I have had the same exact problem. The machine hardlocks, and a cold
> = boot is necissary. I eventually changed nics to a 100Mbit in the
> frontend.

Might the two of you be using Marvell-based gigabit Ethernet cards
and/or SysKonnect drivers?  After I moved from the built-in
Intel-based 100Mbps Ethernet jack on my MythTV frontend/backend to the
D-Link DGE-560T--a PCI Express 1x gigabit Ethernet card, for which I
had to download SysKonnect's own version of sk98lin--I found that I
could consistently crash the system hard by using dd or mv to max out
the traffic to my RAID 5 file server (which remained stable, and has
always had gigabit Ethernet), regardless of jumbo frames. I have not
seen this issue while simultaneously recording and playing back HD
streams, but might well do so once I start recording more than one HD
stream at once. I look forward to the core Linux kernel's own sk98lin
or skge drivers supporting my card, hopefully soon.

Yeechang Lee <ylee at pobox.com> | +1 650 776 7763 | San Francisco CA US

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