> > Quick questions since I haven't had time to setup the environment to > > play with your patches yet. Did you see any disks, or can't you type > > anything yet ? > > Hmm, the Intel ICH7 chipset in the Intel iMac seems to suffer from the > "cntrl sharing DMA engine between channels" problem, so that Solaris > refuses to use DMA with the HDD: > > > PCI Express-device: pci8086,[EMAIL PROTECTED], pci_pci0 > pci_pci0 is /[EMAIL PROTECTED],0/pci8086,[EMAIL PROTECTED] > pcplusmp: ide (ata) instance 0 vector 0xe ioapic 0x1 intin 0xe is bound to > cpu 1pcplusmp: ide (ata) instance 0 vector 0xe ioapic 0x1 intin 0xe is bound > to cpu 1 ATAPI device at targ 0, lun 0 lastlun 0x0 > model MATSHITADVD-R UJ-846 > ATA/ATAPI-6 supported, majver 0x78 minver 0x0 > IDE device at targ 1, lun 0 lastlun 0x0 > model WDC WD2500JS-40NGB2 > ATA/ATAPI-7 supported, majver 0xfe minver 0x0 > ata_set_feature: (0x66,0x0) failed > PCI Express-device: [EMAIL PROTECTED], ata2 > ata2 is /[EMAIL PROTECTED],0/[EMAIL PROTECTED],2/[EMAIL PROTECTED] > ATA DMA off: cntrl sharing DMA engine between channels > PIO mode 4 selected > Disk0: <Vendor 'Gen-ATA ' Product 'WDC WD2500JS-40N'> > cmdk0 at ata2 target 1 lun 0 > cmdk0 is /[EMAIL PROTECTED],0/[EMAIL PROTECTED],2/[EMAIL PROTECTED]/[EMAIL > PROTECTED],0 > > > > Reading from the HDD is killing GUI performance on the iMac, it seems... >
There's an (supposedly dangerously) hacked ata driver floating around that makes this work OK. Please contact me off-line if you'd like a copy of it. The bug that covers this is: 5031379 Toshiba MK6021GAS falls back to pio on HP Pavilion ze5385us That said, this is a sata controller operating in legacy emulation. The right fix is to get support for that sata controller and address it as such. That means that I understand why this bug isn't a priority for the ata folks as they are also the sata folks and need to be working on higher win issues. -jan _______________________________________________ opensolaris-discuss mailing list opensolaris-discuss@opensolaris.org
