Re: [PATCH] quiet MMCONFIG related printks

On Wednesday, January 3, 2007 5:53 am, Arjan van de Ven wrote:
On Mon, 2007-01-01 at 21:01 -0800, Jesse Barnes wrote:
Using MMCONFIG for PCI config space access is simply an
optimization, not a requirement. Therefore, when it can't be used,
there's no need for KERN_ERR level message. This patch makes the
message a KERN_INFO instead to reduce some of the noise in a kernel
boot with the 'quiet' option. (Note that this has no effect on a
normal boot, which is ridiculously verbose these days.)

this is wrong, please leave this loud complaint in...

So the issues as I understand them:
o some BIOSes are broken and don't properly map MCFG space (though
according to Petr V. reserving MCFG space in e820 is optional, so
the test may be slightly wrong as-is)
o MCFG space is required for (many) PCIe devices (any regular PCI
devices?)
o often, there's nothing the user can do to address the points above

So where does that leave us? I've got what I consider to be a stupid
error message in my log. My system behavior isn't affected in any way
(at least that I can tell), yet I get a loud complaint at boot time.

I guess I just have to live with it?

Thanks,
Jesse

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