Re: [PATCH resend] pci: ARI is a PCIe v2 feature

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

 



On Wed, 13 Jul 2011 10:14:33 -0700
Chris Wright <chrisw@xxxxxxxxxxxx> wrote:

> The function pci_enable_ari() may mistakenly set the downstream port
> of a v1 PCIe switch in ARI Forwarding mode.  This is a PCIe v2
> feature, and with an SR-IOV device on that switch port believing the
> switch above is ARI capable it may attempt to use functions 8-255,
> translating into invalid (non-zero) device numbers for that bus.
> This has been seen to cause Completion Timeouts and general
> misbehaviour including hangs and panics.


Thanks Chris, your earlier one is still sitting in my queue, but I
wasn't going to send it for 3.0 as it didn't seem that critical.  Do
you think it is?  If so you can send it directly to Linus with my ack
as I don't have anything else queued, or just wait until the merge
window when it will be put into the stable tree as well.

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


[Index of Archives]     [DMA Engine]     [Linux Coverity]     [Linux USB]     [Video for Linux]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]     [Greybus]

  Powered by Linux