Date: Thu, 08 Apr 2010 14:31:18 -0400 From: Mike Tancsa <mike@sentex.net> To: pyunyh@gmail.com Cc: freebsd-stable@freebsd.org, jfvogel@gmail.com Subject: Re: em driver regression Message-ID: <201004081831.o38IVR3s043434@lava.sentex.ca> In-Reply-To: <20100408181741.GI5734@michelle.cdnetworks.com> References: <201004081313.o38DD4JM041821@lava.sentex.ca> <7.1.0.9.0.20100408091756.10652be0@sentex.net> <201004081446.o38EkU7h042296@lava.sentex.ca> <20100408181741.GI5734@michelle.cdnetworks.com>
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At 02:17 PM 4/8/2010, Pyun YongHyeon wrote:
>Try this patch. It should fix the issue. It seems Jack forgot to
>strip CRC bytes as old em(4) didn't strip it, probably to
>workaround silicon bug of old em(4) controllers.
Thanks! The attached patch does indeed fix the dhclient issue.
>It seems there are also TX issues here. The system load is too high
>and sometimes system is not responsive while TX is in progress.
>Because I initiated TCP bulk transfers, TSO should reduce CPU load
>a lot but it didn't so I guess it could also be related watchdog
>timeouts you've seen. I'll see what can be done.
Thanks for looking into that as well!!
---Mike
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Mike Tancsa, tel +1 519 651 3400
Sentex Communications, mike@sentex.net
Providing Internet since 1994 www.sentex.net
Cambridge, Ontario Canada www.sentex.net/mike
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