Re: kernel panic during boot for ata trouble

[Ferruccio Zamuner <nonsolosoft@xxxxxxxx>]

Matthew Dillon wrote:

>     Hmm.  It's clearly a software bug, but finding it is going to be
>     difficult.

I've seen that both FreeSBIE 1.0 (FreeBSD 5.3) and FreeBSD 7.0-CURRENT do not report any connection problem to fallback to PIO as DragonFlyBSD 1.4.4 does on this PC and this HD.

ad4: READ command timeout tag=0 serv=0 - resetting
ata2: resetting devices .. done
ad4: 152627MB <WDC WD1600JB-00REA0> [310101/16/63] at ata2-master UDMA100
ad4: READ command timeout tag=0 serv=0 - resetting
ata2: resetting devices .. done
ad4: READ command timeout tag=0 serv=0 - resetting
ata2: resetting devices .. done
ad4: READ command timeout tag=0 serv=0 - resetting
ad4: trying fallback to PIO mode 


> :DragonFlyBSD doesn't detect yet the Promise SATA 300 TX2plus (PDC20775) pci board and devices connected to it.
> :Can I do something to have support for that controller?
> :
>
>     I did a quick google search and it looks like it ought to be fairly easy
>     to support the controller.  A couple of PCI ID entries might do it.

I've just tested with FreeBSD 7.0-CURRENT and this is output, I don't know if it could be useful for you:

atapci1: <Promise PDC40775 SATA 300 Controller> port 0x947f, 0x9000-0x90ff mem 0xde800000-0xde800fff, 0xde000000-0xde01ffff irq 12 at device 10.0 on pci0

>     What we really need to do is port the current FreeBSD ATA driver to
>     DragonFly.  Our current code is ancient.  I will spend a day to see
>     if I can do that.

Thank you Matt for your passion on DFBSD.                \fer