Date: Wed, 17 Apr 2019 11:33:30 -0600 From: Ian Lepore <ian@freebsd.org> To: Balanga Bar <balanga.bar@gmail.com>, freebsd-arm@freebsd.org Subject: Re: interrupt storm detected Message-ID: <6e5e9c101aa35da0bf449bd8e407b8110a2ad382.camel@freebsd.org> In-Reply-To: <CADocevA56sHhUQ256FYf39mVjsm48ZTURQXd2-arGLRRPK8wpg@mail.gmail.com> References: <CADocevA56sHhUQ256FYf39mVjsm48ZTURQXd2-arGLRRPK8wpg@mail.gmail.com>
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On Wed, 2019-04-17 at 19:23 +0100, Balanga Bar wrote: > After building FreeBSD 12.0-RELEASE for ARM I managed to boot up my > GoFlex > Home booting up without getting kernel panics which I did with 11.2, > but > instead I get a msg every second or so saying:- > > interrupt storm detected on "intr13:" throttling interrupt source > > After some experimenting I managed to run vmstat -i which showed:- > > interrupt total rate > irq1: timer0 27224 201 > irq12: mge0 6037 45 > irq13: mge0 11003 81 > irq19: ehci0 5665 42 > irq33: uart0 247 2 > Total 50176 371 > > > Is there anyting I can do to stop this storm? > > I tried adding hw.intr_storm_threshold=4000 to /etc/sysctl.conf, but > that > made no difference. > Check whether the right PHY indexes are being used. I've seen kirkwood systems put the PHYs on 0 & 1, 0 & 4, and 0 & 8. I've seen interrupt storms on mge before. I'm not positive the PHY numbers and the irq storms are related, that's just two random things I remember from the past. -- Ian
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