Re: [PATCH 2/2] PCI: Only enable realloc auto when root bus has 64bit mmio

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Mon, Dec 9, 2013 at 11:42 AM, Bjorn Helgaas <bhelgaas@xxxxxxxxxx> wrote:
> That doesn't answer my question at all.
>
> I understand that this change makes it so Joseph doesn't have to use
> "pci=realloc=off".  But why should auto-reallocation be limited to
> buses that have resources above 4GB?  That doesn't make any sense.
>
> We should fix the reallocation code so it can deal with this case.  If
> there's not enough space for everything, obviously we have to leave
> something unassigned.  A ROM BAR is a good candidate for leaving
> unassigned, because most of the time we can get along without it.

Yes, that is ideal and not that simple.
but that would be hard to backport to old kernels.

BTW, Joseph, can you try
git://git.kernel.org/pub/scm/linux/kernel/git/yinghai/linux-yinghai.git
for-pci-3.14
with pci=realloc=on

on that system?

Thanks

Yinghai
--
To unsubscribe from this list: send the line "unsubscribe stable" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html




[Index of Archives]     [Linux Kernel]     [Kernel Development Newbies]     [Linux USB Devel]     [Video for Linux]     [Linux Audio Users]     [Yosemite Hiking]     [Linux Kernel]     [Linux SCSI]