On Friday, January 20, 2012 8:21:28 am Matthieu Volat wrote:
> Hello,
>
> For a week, I have been trying to boot the FreeBSD 9 installation media
(usb, cdrom) on a computer with an Asus P5-NE motherboard (amd64, nvidia MCP51
controller), but the kernel fails to initialize correctly.
I think the problem is with the nvidia chipset and MSI support. There's not
an easy way to fix it via a tunable unfortunately. You can try hacking
sys/dev/pci/pci.c to disable this code:
#if defined(__i386__) || defined(__amd64__) || defined(__powerpc__)
/*
* Enable the MSI mapping window for all HyperTransport
* slaves. PCI-PCI bridges have their windows enabled via
* PCIB_MAP_MSI().
*/
if (cfg->ht.ht_slave != 0 && cfg->ht.ht_msimap != 0 &&
!(cfg->ht.ht_msictrl & PCIM_HTCMD_MSI_ENABLE)) {
device_printf(pcib,
"Enabling MSI window for HyperTransport slave at pci%d:%d:%d:%d\n",
cfg->domain, cfg->bus, cfg->slot, cfg->func);
cfg->ht.ht_msictrl |= PCIM_HTCMD_MSI_ENABLE;
WREG(cfg->ht.ht_msimap + PCIR_HT_COMMAND, cfg->ht.ht_msictrl,
2);
}
#endif
--
John Baldwin
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