Date: Wed, 7 Nov 2007 12:18:06 +0300 From: Igor Sysoev <is@rambler-co.ru> To: jfvogel@gmail.com Cc: freebsd-stable@freebsd.org Subject: Re: em driver 6.6.6 regression Message-ID: <20071107091806.GA361@rambler-co.ru> In-Reply-To: <20071012121545.GA78201@rambler-co.ru> References: <20071012121545.GA78201@rambler-co.ru>
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On Fri, Oct 12, 2007 at 04:15:46PM +0400, Igor Sysoev wrote: > Yesterday I have cvsup'ed FreeBSD on ThinkPad T42 to RELENG_6 > "2007.10.10.23.59.59" and have noticed lags while playing mp3 and browsing. > I have suspected new em driver, because there was no lags if wifi iwi0 > was used instead of em0 for network. So I had downgraded the em driver > separately to 6.2.9 version, have build a kernel loadable module, and have > loaded it instead of the 6.6.6 module, and the lags have disappeared. > > The lags appeares only if browser (Firefox, Opera) does several requests: > main page, js, images. There are no lags if browser reload simple page. > Also, I could not reproduce lags by other network traffic: pings, ssh, scp, > downloading files. There are no lags if I compile and so on. > > Some additional info: > > The shared irq11 is used by pcm0, em0, iwi0, CardBus, USB, and acpi_video0. > > em0@pci2:1:0: class=0x020000 card=0x05491014 chip=0x101e8086 rev=0x03 hdr=0x00 > vendor = 'Intel Corporation' > device = '82540EP Gigabit Ethernet Controller (Mobile)' I just cvsup'ed to the new em 6.7.2 version without FAST interrupt and lags in sound and USB mouse has gone. Thank you. -- Igor Sysoev http://sysoev.ru/en/
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