Hi Miller:
Thank you for your response.
The reason why MSIs of these northbridges do not work is still under
further debug, we are NOT able to tell its hardware issue or software
issue at this time. But enablement of them will lead to the OS
installation failure in many distributions like openSUSE, Ubuntu etc:
https://bugzilla.novell.com/show_bug.cgi?id=302016
So we have to disable them firstly before we find out the root cause,
maybe they are just workarounds.
If you guys know much more about this MSI problem, don't hesitate to
tell us, we can debug on some of the hardware platforms.
BTW, There already some disablements to some ATI NB MSIs in the kernel,
the reasons are similar.
Thanks
Shane
> -----Original Message-----
> From: David Miller [mailto:[email protected]]
> Sent: Thursday, October 18, 2007 6:20 PM
> To: Shane Huang
> Cc: [email protected]; [email protected]; [email protected];
[email protected]; Su, Henry; Yang, Libin
> Subject: Re: [patch] PCI: disable MSI on more ATI NorthBridges
>
> From: "Shane Huang" <[email protected]>
> Date: Thu, 18 Oct 2007 17:14:36 +0800
>
> > More ATI North Bridges like RS780 can't do MSI like its predecessors
> > in linux. Disable MSIs on them.
> >
> > Signed-off-by: Shane Huang <[email protected]>
>
> Can we get some detail as to why these north bridges have to have MSI
> disabled completely? I can't believe that all 6 of these ATI
> controllers which will now be listed in the quirk table cannot use MSI
> at all.
>
> I've discovered several cases where it was a buggy device or a driver
> bug that caused someone to erroneously submit patches that disable MSI
> completely for the bridge they were behind.
>
> I don't want that to happen any more. One way to prevent that is to
> have a full detailed justification for the MSI disabling in the
> changelog or in the comments for the MSI quirk.
>
> Thank you.
>
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
[Index of Archives]
[Kernel Newbies]
[Netfilter]
[Bugtraq]
[Photo]
[Stuff]
[Gimp]
[Yosemite News]
[MIPS Linux]
[ARM Linux]
[Linux Security]
[Linux RAID]
[Video 4 Linux]
[Linux for the blind]
[Linux Resources]
