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. _______________________________________________ freebsd-stable@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to "freebsd-stable-unsubscr...@freebsd.org"
