Date: Thu, 28 Sep 2006 15:59:17 -0400 From: Mike Jakubik <mikej@rogers.com> To: Scott Long <scottl@samsco.org> Cc: stable@freebsd.org Subject: Re: CALL FOR TESTERS! [Re: 6.2 SHOWSTOPPER - em completely unusable on 6.2] Message-ID: <451C2995.5080303@rogers.com> In-Reply-To: <451BD89F.8080203@samsco.org> References: <451A1375.5080202@gneto.com> <20060927071538.GF22229@e-Gitt.NET><451A4189.5020906@samsco.org> <20060927152824.GJ22229@e-Gitt.NET><20060927155553.GB14563@icarus.home.lan><20060927155904.GM22229@e-Gitt.NET> <451AA7B1.5080202@samsco.org><20060927191402.GB932@turion.vk2pj.dyndns.org><20060927210349.GG14975@tnn.dglawrence.com> <451AEB02.2090806@samsco.org> <002201c6e290$45ece980$b3db87d4@multiplay.co.uk> <451BD89F.8080203@samsco.org>
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Scott Long wrote: > All, > > Attached is my first cut at addressing the problems described in this > thread. As I discussed earlier, the VM syncer thread is likely starving > the USB interrupt thread. This causes the shared usb+network > interrupt to remain masked, preventing network interrupts from being > delivered, > and thus triggering watchdog timeouts. Just to be clear, has it been established that the problem only occurs when em is sharing an interrupt? I have a lot of production machines using the PDSMi board, which is one of the boards that the problem was noticed on, however i do not share any irqs, i always disable USB in the BIOS. # vmstat -i interrupt total rate irq16: em0 13001181 7 irq19: atapci0 76559511 42 cpu0: timer 3643365617 1999 cpu1: timer 3643365610 1999 Total 7376291919 4048
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