Date: Sun, 04 May 2008 18:22:20 -0400 From: Mike Tancsa <mike@sentex.net> To: Oleksandr Samoylyk <oleksandr@samoylyk.sumy.ua> Cc: freebsd-net@freebsd.org Subject: Re: Troubles with em on FreeBSD 7 Message-ID: <200805042220.m44MKCgK061568@lava.sentex.ca> In-Reply-To: <481E338D.6040706@samoylyk.sumy.ua> References: <481C84B7.6020205@samoylyk.sumy.ua> <bibs14perk47snkpg8fu691kjkc42gh6m2@4ax.com> <481E338D.6040706@samoylyk.sumy.ua>
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At 06:07 PM 5/4/2008, Oleksandr Samoylyk wrote:
I tried both:
>- new drivers: 6.9.0
>- rx_processing_limit: 100
>
>Result the same :(
>
>>Also, post some of the stats. Do a sysctl -w dev.em.1.stats=1
>>to all of your em nics
>
>em0: Excessive collisions = 0
>em0: Sequence errors = 0
>em0: Defer count = 0
>em0: Missed Packets = 434970
>em0: Receive No Buffers = 290593
>em0: Receive Length Errors = 0
>em0: Receive errors = 0
>em0: Crc errors = 0
>em0: Alignment errors = 0
>em0: Collision/Carrier extension errors = 0
>em0: RX overruns = 2929
>em0: watchdog timeouts = 0
>em0: XON Rcvd = 0
>em0: XON Xmtd = 0
>em0: XOFF Rcvd = 0
>em0: XOFF Xmtd = 0
>em0: Good Packets Rcvd = 64182304
>em0: Good Packets Xmtd = 84277659
>em0: TSO Contexts Xmtd = 832
>em0: TSO Contexts Failed = 0
>
>em1: Excessive collisions = 0
>em1: Sequence errors = 0
>em1: Defer count = 0
>em1: Missed Packets = 0
>em1: Receive No Buffers = 0
>em1: Receive Length Errors = 0
>em1: Receive errors = 0
>em1: Crc errors = 0
>em1: Alignment errors = 0
>em1: Collision/Carrier extension errors = 0
>em1: RX overruns = 0
>em1: watchdog timeouts = 0
>em1: XON Rcvd = 0
>em1: XON Xmtd = 0
>em1: XOFF Rcvd = 0
>em1: XOFF Xmtd = 0
>em1: Good Packets Rcvd = 62431510
>m1: Good Packets Xmtd = 55466567
>em1: TSO Contexts Xmtd = 0
>em1: TSO Contexts Failed = 0
>
>>And are you using gigabit or fastE. If fastE, try disabling TSO as
>>some people have said they have problems with it at 100Mb.
>
>I'm on GgE. Disabling TSO doesn't help as well.
Perhaps time to engage the driver author for insight / help
---Mike
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