[Added Jerome, who submitted a patch similar to mine.] On Mon, 2014-03-10 at 18:04 +0100, Thomas Gleixner wrote: > On Mon, 10 Mar 2014, Paul Bolle wrote: > > https://lkml.org/lkml/2012/9/24/221 . Is that analysis incorrect? > > Kinda. But there is no reason for the fast calibration to fail except > BIOS induced SMI nonsense.
What made me submit my patch, in 2012, is that this error is printed very early, before boot animation kicks in. Ie, it looks rather scary. And when I dug through the code I noticed that this condition seems actually to be handled already: the kernel just tries an alternative calibration method. So I think this should be printed at (say) KERN_INFO level (so it will be suppressed during boot). More so if the solution would be "upgrade the BIOS". Upgrading the BIOS on a ThinkPad, for instance, can require fiddling with quite a bit of low level programs. And how do we know an upgraded BIOS actually helps? Or is there a way to handle the "SMI nonsense" (whatever that may be)? Paul Bolle -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
