Date: Mon, 15 Dec 2008 10:07:10 +0100 From: Victor Balada Diaz <victor@bsdes.net> To: =?iso-8859-1?Q?S=F8ren?= Schmidt <sos@FreeBSD.ORG> Cc: "Andrey V. Elsukov" <bu7cher@yandex.ru>, freebsd-stable@FreeBSD.ORG, freebsd-amd64@FreeBSD.ORG Subject: Re: [ATA] and re(4) stability issues Message-ID: <20081215090710.GO1320@alf.bsdes.net> In-Reply-To: <A8284393-C4E8-4E7D-9ADF-F8270C354E13@FreeBSD.ORG> References: <20081209185236.GA1320@alf.bsdes.net> <493F84A4.1080308@yandex.ru> <20081210091107.GC1320@alf.bsdes.net> <A8284393-C4E8-4E7D-9ADF-F8270C354E13@FreeBSD.ORG>
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On Wed, Dec 10, 2008 at 10:55:35AM +0100, Søren Schmidt wrote: > On 10Dec, 2008, at 10:11 , Victor Balada Diaz wrote: > > > >Thanks for explaining me what the flags do. I'm not skilled enough > >to create > >the DMA quirks but if you could give me some patches i'll test them. > >Also > >if you have any other idea on what could i test or how can i debug > >this > >it would be more than welcome. > > > Comment out the following two lines in ata_ahci_dmainit(): > > if (ATA_INL(ctlr->r_res2, ATA_AHCI_CAP) & ATA_AHCI_CAP_64BIT) > ch->dma->max_address = BUS_SPACE_MAXADDR; > > And you will not use 64bit DMA even if the chipset supports it. > However I have not seen any chipsets supporting this fail, YMMV as > usual :) > Hello Søren, I'm triggering interrupt storms with this chipset after a few days of stressing the HD calling sysutils/stress with stress -d 10 -i 10 and in other term, doing: while true; do dd if=/dev/zero of=BAH bs=1M count=1024; done; Right now, as reported by systat -vmstat i have 578k interrupts in atapci and the machine is idle. Do you have any idea on how could i debug this? any advice would be much more than welcome. Thanks a lot. Regards. -- La prueba más fehaciente de que existe vida inteligente en otros planetas, es que no han intentado contactar con nosotros.
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